技术领域technical field
本发明涉及终端技术领域，尤其涉及一种通话录音方法及终端。The present invention relates to the technical field of terminals, in particular to a call recording method and a terminal.
背景技术Background technique
随着通信终端技术的不断发展，终端上集成的功能越来越丰富并已成为人们日常生活中不可或缺的一部分。其中，终端提供的录音功能，可使用户在听演讲、听音乐或通话时时将音频数据录制下来，使得用户能在后续时间里反复收听，不用在现场花费精力和时间去做笔记，极大地方便了用户。目前人们在通话过程中使用终端的录音功能时，往往还会遭遇这样的场景：对方正要告知一些重要的信息，用户意识到需要进行录音时需要将终端拿开耳边，点击录音按键开始录音，而对方在这个过程中还在持续说话，使得用户很容易会漏掉重要的信息，甚至有时用户需要叫对方暂停一下或重复一遍刚才的通话内容，极大的影响了用户体验。With the continuous development of communication terminal technology, the functions integrated on the terminal are becoming more and more abundant and have become an indispensable part of people's daily life. Among them, the recording function provided by the terminal allows users to record audio data while listening to speeches, listening to music or talking, so that users can listen to it repeatedly in the subsequent time, without spending energy and time on site to take notes, which is very convenient the user. At present, when people use the recording function of the terminal during a call, they often encounter such a scene: the other party is about to inform some important information, and the user needs to take the terminal away from the ear when the user realizes that recording is needed, and click the record button to start recording , and the other party is still talking during this process, which makes it easy for the user to miss important information, and sometimes the user needs to ask the other party to pause or repeat the content of the call just now, which greatly affects the user experience.
发明内容Contents of the invention
本发明实施例提供了一种通话录音方法及终端，使用户在通话过程中使用通话录音功能更加便捷，提高了用户体验。Embodiments of the present invention provide a call recording method and a terminal, which make it more convenient for a user to use the call recording function during a call, and improve user experience.
本发明实施例提供了一种通话录音方法，所述方法包括：An embodiment of the present invention provides a call recording method, the method comprising:
在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像；During the voice call, the fingerprint image of the user is collected through the fingerprint recognition area on the back of the terminal;
判断所述指纹图像是否与预存的指纹校验信息匹配；judging whether the fingerprint image matches the pre-stored fingerprint verification information;
若是，启动通话录音功能以对本次语音通话进行录音。If yes, activate the call recording function to record the voice call.
相应的，本发明实施例提供了一种终端，所述终端包括：Correspondingly, an embodiment of the present invention provides a terminal, and the terminal includes:
指纹采集单元，用于在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像；The fingerprint collection unit is used to collect the fingerprint image of the user through the fingerprint identification area on the back of the terminal during the voice call;
指纹识别单元，用于判断所述指纹图像是否与预存的指纹校验信息匹配；A fingerprint identification unit, configured to determine whether the fingerprint image matches the pre-stored fingerprint verification information;
录音启动单元，用于所述指纹识别单元判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音。The recording start unit is used for starting the call recording function to record the current voice call when the fingerprint recognition unit judges that the fingerprint image matches the pre-stored fingerprint verification information.
本发明实施例，可在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，还可在判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，提高用户了体验。In the embodiment of the present invention, the user's fingerprint image can be collected through the fingerprint recognition area on the back of the terminal during the voice call, and the call recording function can be activated to record the fingerprint image when it is judged that the fingerprint image matches the pre-stored fingerprint verification information. The voice call is recorded, so that the user can quickly and conveniently start the call recording function to record the call content during the call, which improves the user experience.
附图说明Description of drawings
为了更清楚地说明本发明实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.
图1是本发明实施例提供的一种通话录音方法流程示意图；FIG. 1 is a schematic flow chart of a call recording method provided by an embodiment of the present invention;
图2是本发明实施例提供的另一种通话录音方法流程示意图；FIG. 2 is a schematic flow chart of another call recording method provided by an embodiment of the present invention;
图3是本发明实施例提供的又一种通话录音方法流程示意图；FIG. 3 is a schematic flow chart of another call recording method provided by an embodiment of the present invention;
图4是本发明实施例提供的一种终端结构示意图；FIG. 4 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;
图5是本发明实施例提供的指纹识别单元结构示意图；Fig. 5 is a schematic structural diagram of a fingerprint identification unit provided by an embodiment of the present invention;
图6是本发明实施例提供的终端背部结构示意图。Fig. 6 is a schematic diagram of the rear structure of a terminal provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
具体实现中，本发明实施例中所提及的终端包括但不限于：智能手机(如Android手机、IOS手机)、平板电脑、笔记本电脑、掌上电脑、穿戴式智能设备等电子设备。In a specific implementation, the terminals mentioned in the embodiments of the present invention include, but are not limited to: electronic devices such as smart phones (such as Android phones, IOS phones), tablet computers, notebook computers, palmtop computers, and wearable smart devices.
下面将结合图1到图6对本发明实施例提供的一种通话录音方法及终端进行具体描述。A call recording method and terminal provided in the embodiments of the present invention will be described in detail below with reference to FIG. 1 to FIG. 6 .
参见图1，是本发明实施例提供的一种通话录音方法流程示意图，如图所示的通话录音方法可包括以下步骤：Referring to FIG. 1 , it is a schematic flow chart of a call recording method provided by an embodiment of the present invention. The call recording method as shown in the figure may include the following steps:
S101，在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像。S101. During a voice call, collect a fingerprint image of a user through a fingerprint identification area on the back of the terminal.
具体实现中，如图6所示，图6是本发明实施例提供的终端背部结构示意图，指纹识别区域为在终端背部指定区域添加的指纹识别器的指纹采集头，可方便终端用户单手握持终端设备时采集用户的指纹图像(尤其是方便采集用户食指的指纹图像)，其中指纹采集头可以为按压式指纹传感器和滑动式指纹传感器。滑动式指纹传感器体积小能采集更大的指纹图像很适合诸如手机、穿戴式电子设备等小型电子设备，但采集指纹图像的精度受到用户手指滑动速度的影响，而按压式指纹传感器直接选定指定区域的指纹采集特征点使得算法更加简单，二者各有千秋，不同的终端设备厂商有不同的选择。In the specific implementation, as shown in Figure 6, Figure 6 is a schematic diagram of the structure of the back of the terminal provided by the embodiment of the present invention. The fingerprint recognition area is the fingerprint collection head of the fingerprint reader added to the designated area on the back of the terminal, which can be conveniently held by the terminal user with one hand. Collect the user's fingerprint image (especially the fingerprint image of the user's index finger) when holding the terminal device, where the fingerprint collection head can be a push-type fingerprint sensor or a sliding fingerprint sensor. The sliding fingerprint sensor is small in size and can collect larger fingerprint images, which is very suitable for small electronic devices such as mobile phones and wearable electronic devices. The fingerprint collection feature points of the area make the algorithm simpler. Both have their advantages and disadvantages, and different terminal equipment manufacturers have different choices.
例如终端为手机，手机背部的指纹识别区域采用的为按压式指纹传感器，通常用户在通话的过程中，手机由用户右手单手握持放置于耳畔，此时，用户若需要使用通话录音功能，便可将右手食指放置于终端背部指纹识别区域轻轻按一下，终端便通过步骤S101～S103，采集用户右手食指的指纹图像，然后判断与预设的指纹校验信息匹配时，便可开启终端的通话录音功能。For example, the terminal is a mobile phone, and the fingerprint recognition area on the back of the mobile phone adopts a push-type fingerprint sensor. Usually, the mobile phone is held by the user's right hand and placed next to the ear during a call. At this time, if the user needs to use the call recording function , you can put your right index finger on the fingerprint identification area on the back of the terminal and press it lightly, the terminal will collect the fingerprint image of the user's right index finger through steps S101~S103, and then it can be turned on when it judges that it matches the preset fingerprint verification information. The call recording function of the terminal.
S102，判断所述指纹图像与预存的指纹校验信息匹配。S102. Determine that the fingerprint image matches the pre-stored fingerprint verification information.
具体实现中，在指纹识别处理过程中并不是直接存储采集的指纹图像来进行匹配识别，而是通过数字化算法处理采集的指纹图像提取指纹特征信息与系统预存的指纹特征信息进行对比来进行匹配识别。指纹特征分为总体特征和局部特征，总体特征是指用人眼直接就可以观察到的特征，如纹形、模式区、核心点、三角点和纹数等；局部特征是指指纹上特征点的特征，其中特征点包括终结点、分叉点、分歧点、孤立点或环点等，特征点的特征是指特征点的位置、方向、曲率等。In the specific implementation, in the process of fingerprint recognition processing, the collected fingerprint image is not directly stored for matching and recognition, but the fingerprint image is processed by digital algorithm to extract fingerprint feature information and compare with the fingerprint feature information pre-stored in the system for matching and recognition . Fingerprint features are divided into overall features and local features. Overall features refer to the features that can be directly observed by human eyes, such as grain shape, pattern area, core point, triangle point and number of lines, etc.; local features refer to the characteristics of feature points on the fingerprint. Features, where the feature points include terminal points, bifurcation points, bifurcation points, isolated points or loop points, etc., and the features of feature points refer to the position, direction, curvature, etc. of feature points.
不同指纹的总体特征可能相同，但局部特征却不可能完全相同，因此，通常使用指纹的总体特征来进行分类，再用局部特征来进行匹配识别，在本步骤中，判断指纹图像与预存的指纹校验信息匹配，需首先提取通话过程中采集到的指纹图像的指纹特征信息，即指纹的特征点的特征信息，然后将该指纹特征信息与预存在终端中的指纹校验信息进行模式匹配，计算出它们的相似程度，即匹配度，最终得到两个指纹的匹配结果，若匹配通过转而执行步骤S103。The overall features of different fingerprints may be the same, but the local features cannot be completely the same. Therefore, the overall features of the fingerprints are usually used for classification, and then the local features are used for matching and identification. In this step, the fingerprint image and the pre-stored fingerprint are judged. To match the verification information, it is necessary to first extract the fingerprint feature information of the fingerprint image collected during the call, that is, the feature information of the feature points of the fingerprint, and then perform pattern matching on the fingerprint feature information and the fingerprint verification information pre-stored in the terminal. Calculate their degree of similarity, that is, the degree of matching, and finally obtain the matching result of the two fingerprints. If the matching is passed, go to step S103.
S103，启动通话录音功能以对本次语音通话进行录音。S103, start the call recording function to record the voice call.
在通话过程中，利用终端背部的指纹识别区域采集用户的指纹图像并在匹配通过后，自动启动通话录音功能，可使用户在需要记录重要信息时不用额外利用纸和笔，也不用将终端拿开耳畔开启通话录音功能，避免在拿开终端启动录音的过程中错失重要信息，用户在通话过程中可随时对通话内容进行录音。During the call, use the fingerprint recognition area on the back of the terminal to collect the user's fingerprint image and automatically start the call recording function after the matching is passed, so that the user does not need to use additional paper and pens when recording important information, and does not need to take the terminal. Turn on the call recording function on the open ear to avoid missing important information when the terminal is removed to start recording. Users can record the call content at any time during the call.
在另一可选实施例中，在图1所示的方法中，执行步骤S101之前，所述方法还包括：In another optional embodiment, in the method shown in FIG. 1, before performing step S101, the method further includes:
11)、通过所述指纹识别区域采集所述用户指定手指的指纹图像作为指纹校验图像。11) Collecting the fingerprint image of the user's specified finger through the fingerprint recognition area as a fingerprint verification image.
12)、提取所述指纹校验图像的特征信息作为指纹校验信息。12) Extracting feature information of the fingerprint verification image as fingerprint verification information.
具体实现中，终端需预先存储指纹校验信息以供终端在步骤S102中判断通过终端背部指纹识别区域采集的指纹图像与预存的指纹校验信息是否匹配。例如，用户可在预设的通话设置菜单中查找到指纹识别自动录音功能项，开启指纹识别自动录音功能项的设置项，并在指纹识别自动录音功能设置模式下录入一个指定手指的指纹(如右手食指指纹)作为指纹识别自动录音功能的指纹校验图像，指纹识别区域在采集到该指纹校验图像后，经过指纹预处理后提取该指纹校验图像各特征点的特征信息，即指纹各特征点的位置、方向或曲率等信息，作为指纹校验信息存储起来。In a specific implementation, the terminal needs to store fingerprint verification information in advance for the terminal to determine whether the fingerprint image collected through the fingerprint recognition area on the back of the terminal matches the pre-stored fingerprint verification information in step S102. For example, the user can find the fingerprint recognition automatic recording function item in the preset call setting menu, open the setting item of the fingerprint recognition automatic recording function item, and enter a fingerprint of a specified finger in the fingerprint recognition automatic recording function setting mode (such as Right index finger fingerprint) is used as the fingerprint verification image of the automatic recording function of fingerprint recognition. After the fingerprint verification image is collected in the fingerprint recognition area, the feature information of each feature point of the fingerprint verification image is extracted after fingerprint preprocessing, that is, each fingerprint Information such as the position, direction or curvature of the feature point is stored as fingerprint verification information.
在又一可选实施例中，在图1所示的方法中，执行步骤S101之前，所述方法还包括：确认预设的语音通话设置菜单中，指纹识别自动录音功能已开启。In yet another optional embodiment, in the method shown in FIG. 1 , before step S101 is executed, the method further includes: confirming that in the preset voice call setting menu, the fingerprint recognition automatic recording function has been turned on.
在终端预设的语音通话设置菜单中，提供一个指纹识别自动录音功能开关，用以用户选择是否开启指纹识别自动录音功能，当该功能开关为开启状态时，通话接通后，终端中的指纹识别器开启，实时地检测指纹识别区域是否有用户的指纹图像录入，若有，则转而执行步骤S101；当该功能开关为关状态时，即使通话接通，终端指纹识别器也处于关闭状态，当用户手指放置于指纹识别区域时也不会采集指纹图像，可防止用户误操作。In the preset voice call setting menu of the terminal, a fingerprint recognition automatic recording function switch is provided for the user to choose whether to enable the fingerprint recognition automatic recording function. When the function switch is turned on, after the call is connected, the fingerprint in the terminal The identifier is turned on, and detects in real time whether there is a user's fingerprint image entered in the fingerprint recognition area, and if there is, then go to step S101; when the function switch is off, even if the call is connected, the terminal fingerprint reader is also in the off state , when the user's finger is placed in the fingerprint recognition area, the fingerprint image will not be collected, which can prevent the user from misoperation.
在又一可选实施例中，在图1所示的方法中，执行步骤S103之后，所述方法还包括：产生振动或发出提示音，以提示用户所述通话录音功能已启动。In yet another optional embodiment, in the method shown in FIG. 1 , after step S103 is performed, the method further includes: generating vibration or emitting a prompt sound to remind the user that the call recording function has been activated.
本发明实施例，可在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，还可在判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，提高用户了体验。In the embodiment of the present invention, the user's fingerprint image can be collected through the fingerprint recognition area on the back of the terminal during the voice call, and the call recording function can be activated to record the fingerprint image when it is judged that the fingerprint image matches the pre-stored fingerprint verification information. The voice call is recorded, so that the user can quickly and conveniently start the call recording function to record the call content during the call, which improves the user experience.
参见图2，是本发明实施例提供的另一种通话录音方法流程示意图，如图所示的通话录音方法可包括以下步骤：Referring to FIG. 2 , it is a schematic flow chart of another call recording method provided by an embodiment of the present invention. The call recording method as shown in the figure may include the following steps:
S201，在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像。S201. During a voice call, collect a fingerprint image of the user through the fingerprint identification area on the back of the terminal.
S202，提取所述指纹图像的指纹特征信息。S202. Extract fingerprint feature information of the fingerprint image.
指纹图像的指纹特征信息具体是指指纹图像经过数字化图像处理之后，指纹图像中的特征点的特征信息，特征点包括终结点、分叉点、分歧点、孤立点或环点等，特征点的特征信息是指特征点的位置信息、方向信息、曲率信息等。指纹特征信息的提取分为两种，分别为从灰度图像中提取特征信息和从细化二值图像中提取特征信息。需要说明的时是，在提取指纹图像的指纹特征信息之前，还需对指纹图像进行预处理以改善采集的指纹图像质量，增强对比度，去除指纹图像中的断裂和差连，使指纹图像变成清晰的点线图，便于指纹特征信息的提取。The fingerprint feature information of the fingerprint image specifically refers to the feature information of the feature points in the fingerprint image after the fingerprint image has been digitized. Feature information refers to position information, direction information, curvature information, and the like of feature points. The extraction of fingerprint feature information is divided into two types, namely extracting feature information from grayscale images and extracting feature information from thinned binary images. It should be noted that before extracting the fingerprint feature information of the fingerprint image, the fingerprint image needs to be preprocessed to improve the quality of the collected fingerprint image, enhance the contrast, remove the fracture and poor connection in the fingerprint image, and make the fingerprint image become The clear point-line diagram facilitates the extraction of fingerprint feature information.
S203，计算所述指纹图像的指纹特征信息与指纹校验信息的匹配度。S203. Calculate the matching degree between the fingerprint feature information of the fingerprint image and the fingerprint verification information.
计算所述指纹图像的指纹特征信息与指纹校验信息的匹配度的过程即为通过指纹匹配来确认他们是否同源的过程。指纹匹配有两种方式，分别为基于纹理信息的匹配模式和基于点模式匹配，其中，基于纹理信息的匹配模式为通过纹理特征模型将图像匹配转化成模式识别的纹理匹配问题，而基于点模式匹配是利用指纹脊线的端点和分叉点来鉴定指纹，当前所采用的指纹匹配算法大多采用点模式匹配的方法。The process of calculating the matching degree between the fingerprint feature information of the fingerprint image and the fingerprint verification information is the process of confirming whether they are of the same origin through fingerprint matching. There are two ways of fingerprint matching, namely the matching mode based on texture information and the matching mode based on point pattern. Matching is to use the endpoints and bifurcation points of fingerprint ridges to identify fingerprints. Most of the currently used fingerprint matching algorithms use point pattern matching.
S204，若所述匹配度达到预设阈值，确认所述指纹图像与所述指纹校验信息相匹配。S204. If the matching degree reaches a preset threshold, confirm that the fingerprint image matches the fingerprint verification information.
指纹图像的采集受到噪声的影响(如污渍、汗渍)，对于按压式指纹传感器按压手指位置、方向和力度的不同可能造成指纹图像的平移、旋转和非线性形变，而对于滑动式指纹传感器手指滑动的速度影响指纹图像的采集，即使该指纹图像的特征信息与指纹校验信息来自于同一个指头也会有误差，因此在计算指纹图像的指纹特征信息与指纹校验信息的匹配度时需预设一个阈值，当二者的匹配度达到阈值则认为二者是匹配的，即此次采集的指纹图像的指纹来源与指纹校验信息对应的指纹来源相同。The collection of fingerprint images is affected by noise (such as stains, sweat stains). For the pressing fingerprint sensor, the position, direction and strength of the finger may cause translation, rotation and nonlinear deformation of the fingerprint image. For the sliding fingerprint sensor, the finger slides Even if the feature information of the fingerprint image and the fingerprint verification information come from the same finger, there will be errors. Therefore, when calculating the matching degree of the fingerprint feature information of the fingerprint image and the fingerprint verification information, it is necessary to predict A threshold is set, and when the matching degree of the two reaches the threshold, the two are considered to be matched, that is, the fingerprint source of the fingerprint image collected this time is the same as the fingerprint source corresponding to the fingerprint verification information.
S205，启动通话录音功能以对本次语音通话进行录音。S205, start the call recording function to record the voice call.
在通话过程中，利用终端背部的指纹识别区域采集用户的指纹图像并在匹配通过后，自动启动通话录音功能，可使用户在需要记录重要信息时不用额外利用纸和笔，也不用将终端拿开耳畔去启动通话录音功能，避免在拿开终端启动录音的过程中错失重要信息，用户在通话过程中可随时对通话内容进行录音。During the call, use the fingerprint recognition area on the back of the terminal to collect the user's fingerprint image and automatically start the call recording function after the matching is passed, so that the user does not need to use additional paper and pens when recording important information, and does not need to take the terminal. Open the earphone to start the call recording function, so as to avoid missing important information during the process of starting the recording by removing the terminal. The user can record the call content at any time during the call.
本发明实施例，可在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，提取该指纹图像的指纹特征信息，然后计算该指纹特征信息与终端中预存的指纹校验信息的匹配度，在该匹配度达到预设阈值时，认为指纹图像与指纹校验信息为同源，从而启动通话录音功能，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，提高用户了体验。In the embodiment of the present invention, during a voice call, the user's fingerprint image can be collected through the fingerprint recognition area on the back of the terminal, the fingerprint feature information of the fingerprint image can be extracted, and then the difference between the fingerprint feature information and the fingerprint verification information pre-stored in the terminal can be calculated. Matching degree, when the matching degree reaches the preset threshold, the fingerprint image and the fingerprint verification information are considered to be of the same source, thereby enabling the call recording function, so that the user can quickly and conveniently start the call recording function to record the call content during the call , improve the user experience.
参见图3，是本发明实施例提供的又一种通话录音方法流程示意图，如图所示的通话录音方法可包括以下步骤：Referring to FIG. 3 , it is a schematic flow chart of another call recording method provided by an embodiment of the present invention. The call recording method as shown in the figure may include the following steps:
S301，通过指纹识别区域采集用户指定手指的指纹图像作为指纹校验图像。S301. Collect a fingerprint image of a user's designated finger as a fingerprint verification image through a fingerprint identification area.
S302，提取所述指纹校验图像的特征信息作为指纹校验信息。S302. Extract feature information of the fingerprint verification image as fingerprint verification information.
具体实现中，终端通过步骤S301和S302预先存储指纹校验信息以供终端在步骤S305中判断通过终端背部指纹识别区域采集的指纹图像与预存的指纹校验信息是否匹配，例如，用户可在预设的通话设置菜单中查找到指纹识别自动录音功能项，开启指纹识别自动录音功能项的设置项，并在指纹识别自动录音功能设置模式下录入一个指定手指的指纹(如右手食指指纹)作为指纹识别自动录音功能的指纹校验图像，指纹识别区域在采集到该指纹校验图像，经过指纹预处理后提取该指纹校验图像各特征点的特征信息，即指纹各特征点的位置、方向或曲率等信息，作为指纹校验信息存储起来。In specific implementation, the terminal pre-stores the fingerprint verification information through steps S301 and S302 for the terminal to judge whether the fingerprint image collected through the fingerprint recognition area on the back of the terminal matches the pre-stored fingerprint verification information in step S305. Find the fingerprint recognition automatic recording function item in the call setting menu of the setting, open the setting item of the fingerprint recognition automatic recording function item, and enter the fingerprint of a specified finger (such as the fingerprint of the right index finger) in the fingerprint recognition automatic recording function setting mode as the fingerprint Identify the fingerprint verification image with the automatic recording function. After the fingerprint verification image is collected in the fingerprint recognition area, the feature information of each feature point of the fingerprint verification image is extracted after fingerprint preprocessing, that is, the position, direction or direction of each feature point of the fingerprint. Curvature and other information are stored as fingerprint verification information.
S303，确认预设的语音通话设置菜单中，指纹识别自动录音功能已开启。S303, confirming that in the preset voice call setting menu, the fingerprint recognition automatic recording function is turned on.
具体实现中，在终端预设的语音通话设置菜单中，提供一个指纹识别自动录音功能开关，用以用户选择是否开启指纹识别自动录音功能。当该功能开关为开启状态时，通话接通后，终端中的指纹识别器开启，实时地检测指纹识别区域是否有用户的指纹图像录入，若有，则转而执行后续步骤S304～S306；当该功能开关为关状态时，即使通话接通，终端指纹识别器也处于关闭状态，当用户手指放置于指纹识别区域时也不会采集指纹图像，防止用户误操作。In a specific implementation, in the preset voice call setting menu of the terminal, a fingerprint recognition automatic recording function switch is provided for the user to choose whether to enable the fingerprint recognition automatic recording function. When the function switch is turned on, after the call is connected, the fingerprint reader in the terminal is turned on to detect in real time whether there is a fingerprint image of the user entered in the fingerprint recognition area, and if so, turn to the subsequent steps S304-S306; When the function switch is off, even if the call is connected, the terminal fingerprint reader is also in the off state, and when the user's finger is placed in the fingerprint recognition area, the fingerprint image will not be collected to prevent the user from misoperation.
S304，在语音通话过程中，检测到终端背部的指纹识别区域有用户的指纹图像录入时，通过所述指纹识别区域采集用户的指纹图像。S304. During the voice call, when it is detected that a fingerprint image of the user is entered in the fingerprint identification area on the back of the terminal, collect the fingerprint image of the user through the fingerprint identification area.
如图6所示，图6为本发明实施例提供的终端背部结构示意图，指纹识别区域为在终端背部指定区域添加的指纹识别器的指纹采集头，可方便终端用户单手握持终端设备时采集用户的指纹图像(尤其是方便采集用户食指的指纹图像)，其中指纹采集头可以为按压式指纹传感器和滑动式指纹传感器。As shown in Figure 6, Figure 6 is a schematic diagram of the structure of the back of the terminal provided by the embodiment of the present invention. The fingerprint identification area is the fingerprint collection head of the fingerprint reader added to the designated area on the back of the terminal, which is convenient for the terminal user to hold the terminal device with one hand. The fingerprint image of the user is collected (especially the fingerprint image of the user's index finger that is convenient to collect), wherein the fingerprint collection head can be a push-type fingerprint sensor or a sliding fingerprint sensor.
例如终端为手机，手机背部的指纹识别区域采用的为按压式指纹传感器，通常用户在通话的过程中，手机由用户右手单手握持放置于耳畔，此时，用户若需要使用通话录音功能，便可将右手食指放置于终端背部分指纹识别区域轻轻按一下，终端便通过步骤S304～S306，采集用户右手食指的指纹图像，然后判断与预设的指纹校验信息匹配便可开启终端的通话录音功能。For example, the terminal is a mobile phone, and the fingerprint recognition area on the back of the mobile phone adopts a push-type fingerprint sensor. Usually, the mobile phone is held by the user's right hand and placed next to the ear during a call. At this time, if the user needs to use the call recording function , you can place your right index finger on the fingerprint recognition area on the back of the terminal and press it lightly. The terminal will go through steps S304-S306 to collect the fingerprint image of the user's right index finger, and then judge that it matches the preset fingerprint verification information to open the terminal. call recording function.
S305，判断所述指纹图像与预存的指纹校验信息匹配。S305. Determine that the fingerprint image matches the pre-stored fingerprint verification information.
具体实现中，在指纹识别处理过程中并不是直接存储采集的指纹图像来进行匹配识别，而是通过数字化算法处理采集的指纹图像提取指纹特征信息与系统预存的指纹校验信息进行对比来进行匹配识别。指纹特征分为总体特征和局部特征，总体特征是指用人眼直接就可以观察到的特征，如纹形、模式区、核心点、三角点和纹数等；局部特征是指指纹上特征点的特征，其中特征点包括终结点、分叉点、分歧点、孤立点或环点等，特征点的特征是指特征点的位置、方向、曲率等。In the specific implementation, in the process of fingerprint identification processing, the collected fingerprint images are not directly stored for matching and identification, but the fingerprint feature information is extracted by processing the collected fingerprint images with digital algorithms and compared with the fingerprint verification information pre-stored in the system for matching. identify. Fingerprint features are divided into overall features and local features. Overall features refer to the features that can be directly observed by human eyes, such as grain shape, pattern area, core point, triangle point and number of lines, etc.; local features refer to the characteristics of feature points on the fingerprint. Features, where the feature points include terminal points, bifurcation points, bifurcation points, isolated points or loop points, etc., and the features of feature points refer to the position, direction, curvature, etc. of feature points.
不同指纹的总体特征可能相同，但局部特征却不可能完全相同，因此，通常使用指纹的总体特征来进行分类，再用局部特征来进行匹配识别，在本步骤中，判断指纹图像与预存的指纹校验信息匹配，需首先提取通话过程中采集到的指纹图像的指纹特征信息，即指纹的特征点的特征信息，然后将该指纹特征信息与预存在终端中的指纹校验信息进行模式匹配，计算出它们的相似程度，即匹配度，最终得到两个指纹的匹配结果，若匹配通过转而执行步骤S306。The overall features of different fingerprints may be the same, but the local features cannot be completely the same. Therefore, the overall features of the fingerprints are usually used for classification, and then the local features are used for matching and identification. In this step, the fingerprint image and the pre-stored fingerprint are judged. To match the verification information, it is necessary to first extract the fingerprint feature information of the fingerprint image collected during the call, that is, the feature information of the feature points of the fingerprint, and then perform pattern matching on the fingerprint feature information and the fingerprint verification information pre-stored in the terminal. Calculate their similarity, that is, the matching degree, and finally obtain the matching result of the two fingerprints. If the matching is passed, go to step S306.
S306，启动通话录音功能以对本次语音通话进行录音。S306. Start a call recording function to record the voice call.
在通话过程中，利用终端背部的指纹识别区域采集用户的指纹图像并在匹配通过后，自动启动通话录音功能，可使用户在需要记录重要信息时不用额外利用纸和笔，也不用将终端拿开耳畔去启动通话录音功能，避免在拿开终端启动录音的过程中错失重要信息，用户在通话过程中可随时对通话内容进行录音。During the call, use the fingerprint recognition area on the back of the terminal to collect the user's fingerprint image and automatically start the call recording function after the matching is passed, so that the user does not need to use additional paper and pens when recording important information, and does not need to take the terminal. Open the earphone to start the call recording function, so as to avoid missing important information during the process of starting the recording by removing the terminal. The user can record the call content at any time during the call.
S307，产生振动或发出提示音，以提示用户所述通话录音功能已启动。S307, generating vibration or emitting a prompt sound to prompt the user that the call recording function has been activated.
用户在通话过程中，通常终端放置于耳畔，通过显示屏查看通话录音功能是否开启并不方便，因此，在本实施例中，当终端通话录音功能已开启后可通过产生振动或发出提示音提示用户通话录音功能已启动。During a call, the user usually places the terminal next to the ear, and it is inconvenient to check whether the call recording function is enabled through the display screen. Therefore, in this embodiment, when the terminal call recording function is turned on, it can Notify the user that the call recording function has been activated.
本发明实施例，可通过所述指纹识别区域采集所述用户指定手指的指纹图像作为指纹校验图像，提取所述指纹校验图像的特征信息作为指纹校验信息，还可在确认预设的语音通话设置菜单中，指纹识别自动录音功能已开启的情况下，在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，提取该指纹图像的指纹特征信息，然后计算该指纹特征信息与终端中预存的指纹校验信息的匹配度，在该匹配度达到预设阈值时，认为指纹图像与校验信息为同源，从而启动通话录音功能。用户能随意的控制是否开启指纹识别自动录音功能，并且在指纹识别自动录音功能开启的情况下，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，还能在通话录音功能开启后产生振动或发出提示音提示用户通话录音功能已开启，提高用户了体验。In the embodiment of the present invention, the fingerprint image of the finger specified by the user can be collected as the fingerprint verification image through the fingerprint recognition area, and the feature information of the fingerprint verification image can be extracted as the fingerprint verification information. In the voice call setting menu, if the fingerprint recognition automatic recording function is turned on, during the voice call, the user's fingerprint image is collected through the fingerprint recognition area on the back of the terminal, the fingerprint feature information of the fingerprint image is extracted, and then the fingerprint feature is calculated. The matching degree of the information and the fingerprint verification information pre-stored in the terminal, when the matching degree reaches the preset threshold, the fingerprint image and the verification information are considered to be of the same source, thereby enabling the call recording function. The user can freely control whether to enable the automatic recording function of fingerprint recognition, and when the automatic recording function of fingerprint recognition is turned on, the user can quickly and conveniently start the call recording function to record the call content during the call, and can also record the call during the call After the function is turned on, it will generate vibration or send out a prompt sound to remind the user that the call recording function has been turned on, which improves the user experience.
参见图4，本发明实施例提供的一种终端结构示意图，如图所示终端至少可以包括：指纹采集单元401，指纹识别单元402和录音启动单元403。Referring to FIG. 4 , a schematic structural diagram of a terminal provided by an embodiment of the present invention, as shown in the figure, the terminal may at least include: a fingerprint collection unit 401 , a fingerprint recognition unit 402 and a recording start unit 403 .
指纹采集单元401，用于在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像。The fingerprint collection unit 401 is configured to collect the user's fingerprint image through the fingerprint identification area on the back of the terminal during the voice call.
具体实现中，如图6所示，图6是本发明实施例提供的终端背部结构示意图，指纹采集单元401具体为在终端背部指定区域添加的指纹识别器的指纹采集头，可方便终端用户单手握持终端设备时采集用户的指纹图像(尤其是方便采集用户食指的指纹图像)，指纹采集单元401可以为按压式指纹传感器和滑动式指纹传感器。滑动式指纹传感器体积小能采集更大的指纹图像很适合诸如手机、穿戴式电子设备等小型电子设备，但采集指纹图像的精度受到用户手指滑动速度的影响，而按压式指纹传感器直接选定指定区域的指纹特征点，算法更加简单，二者各有千秋，不同的终端设备厂商有不同的选择。In the specific implementation, as shown in FIG. 6, FIG. 6 is a schematic diagram of the structure of the back of the terminal provided by the embodiment of the present invention. The fingerprint collection unit 401 is specifically a fingerprint collection head of a fingerprint reader added to a designated area on the back of the terminal, which is convenient for the terminal user to single When the terminal device is held by the hand, the user's fingerprint image (especially the fingerprint image of the user's index finger is conveniently collected), the fingerprint collection unit 401 can be a push-type fingerprint sensor or a slide-type fingerprint sensor. The sliding fingerprint sensor is small in size and can collect larger fingerprint images, which is very suitable for small electronic devices such as mobile phones and wearable electronic devices. The fingerprint feature points of the area, the algorithm is simpler, the two have their own advantages, and different terminal equipment manufacturers have different choices.
例如终端为手机，手机背部的指纹采集单元401采用的为按压式指纹传感器，通常用户在通话的过程中，手机由用户右手单手握持放置于耳畔，此时，用户若需要使用通话录音功能，便可将右手食指放置于终端背部指纹识别区域轻轻按一下，指纹采集单元401采集用户右手食指的指纹图像，进而指纹识别单元402判断所述指纹图像与预存的指纹校验信息匹配时，录音启动单元403启动启通话录音功能以对本次语音通话进行录音。For example, the terminal is a mobile phone, and the fingerprint collection unit 401 on the back of the mobile phone adopts a push-type fingerprint sensor. Usually, the mobile phone is held by the user's right hand and placed by the ear during a call. At this time, if the user needs to use the call recording function, you can place your right index finger on the fingerprint identification area on the back of the terminal and press it lightly, the fingerprint collection unit 401 collects the fingerprint image of the user's right index finger, and then the fingerprint identification unit 402 judges that when the fingerprint image matches the pre-stored fingerprint verification information , the recording activation unit 403 activates the call recording function to record the current voice call.
指纹识别单元402，用于判断所述指纹图像是否与预存的指纹校验信息匹配。The fingerprint recognition unit 402 is configured to judge whether the fingerprint image matches the pre-stored fingerprint verification information.
具体实现中，指纹识别单元402在指纹识别处理过程中并不是直接存储采集的指纹图像来进行匹配识别，而是通过数字化算法处理采集的指纹图像提取指纹特征信息与系统预存的指纹校验信息进行对比来进行匹配识别。指纹特征分为总体特征和局部特征，总体特征是指用人眼直接就可以观察到的特征，如纹形、模式区、核心点、三角点和纹数等；局部特征是指指纹上特征点的特征，其中特征点包括终结点、分叉点、分歧点、孤立点或环点等，特征点的特征是指特征点的位置、方向、曲率等。In the specific implementation, the fingerprint recognition unit 402 does not directly store the collected fingerprint images for matching and recognition during the fingerprint recognition process, but processes the collected fingerprint images through digital algorithms to extract fingerprint feature information and perform fingerprint verification information pre-stored in the system. comparison for matching identification. Fingerprint features are divided into overall features and local features. Overall features refer to the features that can be directly observed by human eyes, such as grain shape, pattern area, core point, triangle point and number of lines, etc.; local features refer to the characteristics of feature points on the fingerprint. Features, where the feature points include terminal points, bifurcation points, bifurcation points, isolated points or loop points, etc., and the features of feature points refer to the position, direction, curvature, etc. of feature points.
不同指纹的总体特征可能相同，但局部特征却不可能完全相同，因此，通常使用指纹的总体特征来进行分类，再用局部特征来进行匹配识别，在本步骤中，指纹识别单元402判断指纹图像与预存的指纹校验信息匹配，需首先提取通话过程中采集到的指纹图像的指纹特征信息，即指纹的特征点的特征信息，然后将该指纹特征信息与预存在终端中的指纹校验信息进行模式匹配，计算出它们的相似程度，即匹配度，最终得到两个指纹的匹配结果，若匹配通过录音启动单元403启动通话录音功能以对本次语音通话进行录音。The overall features of different fingerprints may be the same, but the local features cannot be completely the same. Therefore, the overall features of the fingerprints are usually used for classification, and then the local features are used for matching and identification. In this step, the fingerprint recognition unit 402 judges the fingerprint image To match the pre-stored fingerprint verification information, it is necessary to first extract the fingerprint feature information of the fingerprint image collected during the call, that is, the feature information of the fingerprint feature points, and then compare the fingerprint feature information with the fingerprint verification information pre-stored in the terminal. Perform pattern matching, calculate their similarity, that is, the matching degree, and finally obtain the matching result of the two fingerprints. If they match, start the call recording function through the recording start unit 403 to record the voice call.
录音启动单元403，用于所述指纹识别单元判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音。The recording activation unit 403 is configured to enable the call recording function to record the current voice call when the fingerprint identification unit judges that the fingerprint image matches the pre-stored fingerprint verification information.
在通话过程中，利用终端背部的指纹采集单元401采集用户的指纹图像并在指纹识别单元402匹配通过后，自动启动通话录音功能，可使用户在需要记录重要信息时不用额外利用纸和笔，也不用将终端拿开耳畔便去开启通话录音功能，避免在拿开终端启动录音的过程中错失重要信息，用户在通话过程中可随时对通话内容进行录音。During the call, use the fingerprint collection unit 401 on the back of the terminal to collect the user's fingerprint image and automatically start the call recording function after the fingerprint recognition unit 402 is matched, so that the user does not need to use additional paper and pen when recording important information. There is no need to take the terminal away from the ear to turn on the call recording function, so as to avoid missing important information during the process of taking the terminal away to start recording, and the user can record the call content at any time during the call.
在另一可选实施例中，所述指纹采集单元401，还用于所述指纹采集单元401通过终端背部的指纹识别区域采集用户的指纹图像之前，通过所述指纹识别区域采集所述用户指定手指的指纹图像作为指纹校验图像。In another optional embodiment, the fingerprint collection unit 401 is also configured to collect the user's specified fingerprint through the fingerprint recognition area before the fingerprint collection unit 401 collects the user's fingerprint image through the fingerprint recognition area on the back of the terminal. The fingerprint image of the finger is used as the fingerprint verification image.
相应的，所述终端还包括：Correspondingly, the terminal also includes:
校验信息提取单元404，用于提取所述指纹校验图像的特征信息作为指纹校验信息。The verification information extraction unit 404 is configured to extract feature information of the fingerprint verification image as fingerprint verification information.
具体实现中，终端通过指纹采集单元401采集指纹校验图像，通过校验信息提取单元404提取指纹校验图像的指纹特征信息作为指纹校验信息以供指纹识别单元402判断通过终端背部指纹识别区域采集的指纹图像与预存的指纹校验信息是否匹配。例如，用户可在预设的通话设置菜单中查找到指纹识别自动录音功能项，开启指纹识别自动录音功能项的设置项，并在指纹识别自动录音功能设置模式下录入一个指定手指的指纹(如右手食指指纹)作为指纹识别自动录音功能的指纹校验图像，指纹采集单元401在采集到该指纹校验图像后，经过指纹识别单元402的指纹预处理后，校验信息提取单元404提取该指纹校验图像各特征点的特征信息，即指纹各特征点的位置、方向或曲率等信息，作为指纹校验信息存储起来。In the specific implementation, the terminal collects the fingerprint verification image through the fingerprint collection unit 401, and extracts the fingerprint feature information of the fingerprint verification image through the verification information extraction unit 404 as the fingerprint verification information for the fingerprint recognition unit 402 to judge the fingerprint recognition area on the back of the terminal. Whether the collected fingerprint image matches the pre-stored fingerprint verification information. For example, the user can find the fingerprint recognition automatic recording function item in the preset call setting menu, open the setting item of the fingerprint recognition automatic recording function item, and enter a fingerprint of a specified finger in the fingerprint recognition automatic recording function setting mode (such as Right hand index finger fingerprint) as the fingerprint verification image of the fingerprint recognition automatic recording function, after the fingerprint collection unit 401 collects the fingerprint verification image, after the fingerprint preprocessing of the fingerprint recognition unit 402, the verification information extraction unit 404 extracts the fingerprint The feature information of each feature point of the verification image, that is, information such as the position, direction or curvature of each feature point of the fingerprint, is stored as fingerprint verification information.
在又一可选实施例中，所述终端还包括：指纹录音确认单元405，用于所述指纹采集单元401通过终端背部的指纹识别区域采集用户的指纹图像之前，确认预设的语音通话设置菜单中，指纹识别自动录音功能已开启。In yet another optional embodiment, the terminal further includes: a fingerprint recording confirmation unit 405, configured to confirm the preset voice call settings before the fingerprint collection unit 401 collects the user's fingerprint image through the fingerprint recognition area on the back of the terminal In the menu, the fingerprint recognition automatic recording function is turned on.
相应的，所述指纹采集单元401，还用于检测所述指纹识别区域是否有指纹图像录入，若有，所述指纹采集单元401通过终端背部的指纹识别区域采集用户的指纹图像。Correspondingly, the fingerprint collection unit 401 is also used to detect whether there is a fingerprint image entered in the fingerprint recognition area, and if so, the fingerprint collection unit 401 collects the user's fingerprint image through the fingerprint recognition area on the back of the terminal.
具体实现中，在终端预设的语音通话设置菜单中，可提供一个指纹识别自动录音功能开关，用以用户选择是否开启指纹识别自动录音功能，当指纹录音确认单元405确认该功能开关为开启状态时，通话接通后，终端中的指纹识别器开启，实时地检测指纹采集单元401是否有用户的指纹图像录入，若有，指纹采集单元401采集该指纹图像；当指纹录音确认单元405确认该功能开关为关状态时，即使通话接通，终端指纹识别器也处于关闭状态，当用户手指放置于指纹采集单元401时也不会采集指纹图像，防止用户误操作。In the specific implementation, in the preset voice call setting menu of the terminal, a fingerprint recognition automatic recording function switch can be provided for the user to choose whether to enable the fingerprint recognition automatic recording function, when the fingerprint recording confirmation unit 405 confirms that the function switch is on , after the call is connected, the fingerprint reader in the terminal is turned on to detect in real time whether the fingerprint collection unit 401 has a user's fingerprint image input, and if so, the fingerprint collection unit 401 collects the fingerprint image; when the fingerprint recording confirmation unit 405 confirms that the When the function switch is in the off state, even if the call is connected, the terminal fingerprint reader is also in the off state, and when the user's finger is placed on the fingerprint collection unit 401, the fingerprint image will not be collected to prevent the user from misoperation.
在又一可选实施例中，所述终端还包括：录音启动提示单元406，用于所述录音启动单元403启动通话录音功能以对本次语音通话进行录音之后，产生振动或发出提示音，以提示用户所述通话录音功能已启动。In yet another optional embodiment, the terminal further includes: a recording activation prompt unit 406, configured to generate a vibration or a prompt sound after the recording activation unit 403 activates the call recording function to record the current voice call, To prompt the user that the call recording function has been activated.
用户在通话过程中，通常终端放置于耳畔，通过显示屏查看通话录音功能是否开启并不方便，因此，在本实施例中，当终端通话录音功能已开启后可通过录音启动单元403产生振动或发出提示音提示用户通话录音功能已启动。During a call, the user usually places the terminal next to the ear, and it is inconvenient to check whether the call recording function is turned on through the display screen. Therefore, in this embodiment, when the call recording function of the terminal is turned on, the recording activation unit 403 can be used to generate vibration Or send out a prompt sound to remind the user that the call recording function has been activated.
本发明实施例，可在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，还可在判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，提高用户了体验。In the embodiment of the present invention, the user's fingerprint image can be collected through the fingerprint recognition area on the back of the terminal during the voice call, and the call recording function can be activated to record the fingerprint image when it is judged that the fingerprint image matches the pre-stored fingerprint verification information. The voice call is recorded, so that the user can quickly and conveniently start the call recording function to record the call content during the call, which improves the user experience.
进一步的参见图5，本发明实施例提供的指纹识别单元结构示意图，如图所示指纹识别单元402可以包括：特征信息提取子单元4201，匹配度计算子单4202，匹配确认子单4203。Further referring to FIG. 5 , a schematic structural diagram of a fingerprint recognition unit provided by an embodiment of the present invention, as shown in the figure, the fingerprint recognition unit 402 may include: a feature information extraction subunit 4201 , a matching degree calculation subunit 4202 , and a matching confirmation subunit 4203 .
特征信息提取子单元4201，用于提取所述指纹图像的指纹特征信息。The feature information extraction subunit 4201 is configured to extract fingerprint feature information of the fingerprint image.
指纹图像的指纹特征信息具体是指纹图像经过数字化图像处理之后，指纹图像中的特征点的特征信息，特征点包括终结点、分叉点、分歧点、孤立点或环点等，特征点的特征信息是指特征点的位置信息、方向信息、曲率信息等。指纹特征信息的提取分为两种分别为从灰度图像中提取特征和从细化二值图像中提取特征。在特征信息提取子单元4201提取指纹图像的指纹特征之前，还需对指纹图像进行预处理以改善采集的指纹图像质量，增强对比度，去除指纹图像中的断裂和差连，使指纹图像变成清晰的点线图，便于指纹特征信息的提取。The fingerprint feature information of the fingerprint image is specifically the feature information of the feature points in the fingerprint image after the fingerprint image has been digitized. The information refers to the position information, direction information, curvature information, etc. of the feature points. The extraction of fingerprint feature information is divided into two types: extracting features from grayscale images and extracting features from thinned binary images. Before the feature information extraction subunit 4201 extracts the fingerprint features of the fingerprint image, the fingerprint image needs to be preprocessed to improve the quality of the collected fingerprint image, enhance the contrast, remove the breaks and poor connections in the fingerprint image, and make the fingerprint image clear The dot-line diagram is convenient for the extraction of fingerprint feature information.
匹配度计算子单元4202，用于计算所述指纹图像的指纹特征信息与所述指纹校验信息的匹配度。The matching degree calculation subunit 4202 is configured to calculate the matching degree between the fingerprint feature information of the fingerprint image and the fingerprint verification information.
匹配度计算子单元4202计算所述指纹图像的指纹特征信息与指纹校验信息的匹配度的过程即为通过指纹匹配来确认它们是否同源的过程。指纹匹配有两种方式分别为基于纹理信息的匹配模式和基于点模式匹配，其中，基于纹理信息的匹配模式为通过纹理特征模型将图像匹配转化成模式识别的纹理匹配问题，而基于点模式匹配是利用指纹脊线的端点和分叉点来鉴定指纹，当前所采用的指纹匹配算法大多采用点模式匹配的方法。The process of calculating the matching degree between the fingerprint feature information and the fingerprint verification information of the fingerprint image by the matching degree calculation subunit 4202 is the process of confirming whether they are of the same origin through fingerprint matching. There are two ways of fingerprint matching: texture information-based matching mode and point pattern matching. Among them, the texture information-based matching mode is a texture matching problem that converts image matching into pattern recognition through texture feature models, and point pattern matching is based on point pattern matching. It uses the endpoints and bifurcation points of fingerprint ridges to identify fingerprints. Most of the currently used fingerprint matching algorithms use point pattern matching.
匹配确认子单元4203，用于所述匹配度达到预设阈值时，确认所述指纹图像与所述指纹校验信息相匹配。The matching confirmation subunit 4203 is configured to confirm that the fingerprint image matches the fingerprint verification information when the matching degree reaches a preset threshold.
指纹图像的采集受到噪声的影响(如污渍、汗渍)，对于按压式指纹传感器按压手指位置、方向和力度的不同也可能造成指纹图像的平移、旋转和非线性形变，而对于滑动式指纹传感器手指滑动速度影响指纹图像的采集，即使该指纹图像的特征信息与指纹校验信息来自于同一个指头也会有误差，因此匹配度计算子单元4202在计算指纹图像的指纹特征信息与指纹校验信息的匹配度时需预设一个阈值，当二者的匹配度达到阈值匹配确认子单元4203则认为二者是匹配的，此次采集的指纹图像的指纹来源与指纹校验信息对应的指纹来源相同。The collection of fingerprint images is affected by noise (such as stains, sweat stains). For the pressing fingerprint sensor, the position, direction and strength of the pressing finger may also cause translation, rotation and nonlinear deformation of the fingerprint image. For the sliding fingerprint sensor finger Sliding speed affects the collection of fingerprint images. Even if the feature information of the fingerprint image and the fingerprint verification information come from the same finger, there will be errors. Therefore, the matching calculation subunit 4202 calculates the fingerprint feature information and fingerprint verification information of the fingerprint image. When the degree of matching between the two needs to be preset, a threshold is required. When the matching degree of the two reaches the threshold, the matching confirmation subunit 4203 considers that the two are matched, and the fingerprint source of the fingerprint image collected this time is the same as the fingerprint source corresponding to the fingerprint verification information. .
通过上述实施例的描述，本发明可在语音通话过程中，通过终端背部的指纹识别区域采集用户的指纹图像，还可在判断所述指纹图像与预存的指纹校验信息匹配时，启动通话录音功能以对本次语音通话进行录音，使用户在通话过程中能够快速便捷地启动通话录音功能对通话内容进行录音，提高用户了体验。Through the description of the above embodiments, the present invention can collect the fingerprint image of the user through the fingerprint identification area on the back of the terminal during the voice call, and can also start call recording when it is judged that the fingerprint image matches the pre-stored fingerprint verification information The function is to record this voice call, so that the user can quickly and conveniently start the call recording function to record the call content during the call, which improves the user experience.
以上对本发明实施例公开的一种通话录音方法及终端进行了详细介绍，以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。The above is a detailed introduction to a call recording method and terminal disclosed in the embodiment of the present invention. What is disclosed above is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of rights of the present invention. Therefore, according to the rights of the present invention The equivalent changes required to be made still belong to the scope covered by the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201510070986.4ACN104717360B (en) | 2015-02-10 | 2015-02-10 | A kind of call recording method and terminal |
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