技术领域technical field
本发明实施例涉及触摸识别技术领域，尤其涉及一种带拐点的手势识别方法及装置。Embodiments of the present invention relate to the technical field of touch recognition, and in particular to a gesture recognition method and device with an inflection point.
背景技术Background technique
智能移动终端，如智能手机和平板电脑等近些年来已经越来越普及，触摸屏是智能移动终端中的重要部件，识别用户在触摸屏上的手势，以响应用户操作已经成为了智能移动终端的常用功能。Smart mobile terminals, such as smartphones and tablet computers, have become more and more popular in recent years. Touch screens are an important part of smart mobile terminals. Recognizing user gestures on the touch screen to respond to user operations has become a common feature of smart mobile terminals. Function.
目前很多智能手机都能够进行用户的手势识别，而且用户可以根据自身需求设置自定义手势。但是，现有的手势识别方法在用户绘制手势的过程中显示用户绘制的手势，且在用户绘制完手势之后才能够进行手势的识别，即，现有的手势识别方法较简单不能满足用户需求，且手势识别的效率较低。At present, many smart phones are capable of recognizing gestures of users, and users can set custom gestures according to their own needs. However, the existing gesture recognition method displays the gesture drawn by the user during the gesture drawing process of the user, and the gesture recognition can only be performed after the user draws the gesture, that is, the existing gesture recognition method is relatively simple and cannot meet the needs of the user. And the efficiency of gesture recognition is low.
发明内容Contents of the invention
本发明的目的是提出一种带拐点的手势识别方法及装置，以提高手势识别的效率，并满足用户需求。The purpose of the present invention is to propose a gesture recognition method and device with an inflection point, so as to improve the efficiency of gesture recognition and meet user needs.
一方面，本发明实施例提供了一种带拐点的手势识别方法，包括：On the one hand, an embodiment of the present invention provides a gesture recognition method with an inflection point, including:
识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点；identifying a gesture drawn by the user, and determining whether the gesture drawn by the user includes a preset inflection point;
在识别出所述用户绘制的手势包括预设拐点时，显示所述用户绘制的手势；displaying the gesture drawn by the user when it is recognized that the gesture drawn by the user includes a preset inflection point;
识别所述用户绘制的手势是否为预设手势，并依据识别结果启动预设手势对应的预设应用程序。Identifying whether the gesture drawn by the user is a preset gesture, and starting a preset application program corresponding to the preset gesture according to the recognition result.
另一方面，本发明实施例提供了一种带拐点的手势识别装置，包括：On the other hand, an embodiment of the present invention provides a gesture recognition device with an inflection point, including:
拐点识别单元，用于识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点；an inflection point identification unit, configured to identify a gesture drawn by the user, and determine whether the gesture drawn by the user includes a preset inflection point;
手势显示单元，用于在识别出所述用户绘制的手势包括预设拐点时，显示所述用户绘制的手势；a gesture display unit, configured to display the gesture drawn by the user when it is recognized that the gesture drawn by the user includes a preset inflection point;
手势识别单元，用于识别所述用户绘制的手势是否为预设手势A gesture recognition unit, configured to recognize whether the gesture drawn by the user is a preset gesture
程序启动单元，用于依据识别结果启动预设手势对应的预设应用程序。The program starting unit is used to start the preset application program corresponding to the preset gesture according to the recognition result.
本发明实施例中提供的待拐点的手势识别方法及装置，能够在用户绘制手势的过程中实时进行手势识别操作，提高了手势识别的效率，满足了用户需求。本发明实施例中提供的带拐点的手势识别方法中，在用户绘制手势的过程中，只有识别出用户绘制的手势包括预设拐点才显示用户绘制的手势，也才进一步识别用户绘制的手势是否为预设手势，并根据识别结果启动预设手势对应的预设应用程序。该方法依据识别结果选择性的显示用户绘制的手势，提高了移动设备的手势识别效率，满足了用户需求。The gesture recognition method and device for an inflection point provided in the embodiments of the present invention can perform gesture recognition operations in real time while the user is drawing gestures, which improves the efficiency of gesture recognition and meets user needs. In the gesture recognition method with an inflection point provided in the embodiment of the present invention, in the process of the gesture drawn by the user, only when it is recognized that the gesture drawn by the user includes a preset inflection point can the gesture drawn by the user be displayed, and whether the gesture drawn by the user is further identified It is a preset gesture, and a preset application program corresponding to the preset gesture is started according to the recognition result. The method selectively displays the gesture drawn by the user according to the recognition result, improves the gesture recognition efficiency of the mobile device, and satisfies the needs of the user.
附图说明Description of drawings
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本发明实施例的一部分，并不构成对本发明实施例的限定。在附图中：The drawings described here are used to provide further understanding of the embodiments of the present invention, constitute a part of the embodiments of the present invention, and do not limit the embodiments of the present invention. In the attached picture:
图1是本发明第一实施例中提供的带拐点的手势识别方法的实现流程图；Fig. 1 is the implementation flowchart of the gesture recognition method with inflection point provided in the first embodiment of the present invention;
图2是本发明第一实施例中提供的用户绘制的手势的示意图；Fig. 2 is a schematic diagram of a gesture drawn by a user provided in the first embodiment of the present invention;
图3是本发明第二实施例中提供的带拐点的手势识别方法的实现流程图；Fig. 3 is a flow chart of realizing the gesture recognition method with inflection points provided in the second embodiment of the present invention;
图4是本发明第三实施例中提供的带拐点的手势识别方法的实现流程图；Fig. 4 is a flow chart of realizing the gesture recognition method with inflection points provided in the third embodiment of the present invention;
图5是本发明第三实施例中移动设备中预先建立的坐标系的示意图；Fig. 5 is a schematic diagram of a coordinate system pre-established in the mobile device in the third embodiment of the present invention;
图6是本发明第四实施例中提供的带拐点的手势识别装置的结构示意图。Fig. 6 is a schematic structural diagram of a gesture recognition device with inflection points provided in a fourth embodiment of the present invention.
具体实施方式detailed description
下面结合附图及具体实施例对本发明实施例进行更加详细与完整的说明。可以理解的是，此处所描述的具体实施例仅用于解释本发明实施例，而非对本发明实施例的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明实施例相关的部分而非全部内容。The embodiments of the present invention will be described in more detail and complete below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, only the part related to the embodiment of the present invention is shown in the drawings but not the whole content.
第一实施例：First embodiment:
图1是本发明第一实施例中提供的带拐点的手势识别方法的实现流程图，该方法可以由带拐点的手势识别装置执行，其中该装置可由软件和/或硬件实现，可作为移动设备的一部分被内置在移动设备内部。如图1所示，该实现流程包括：Figure 1 is a flow chart of the implementation of the gesture recognition method with inflection points provided in the first embodiment of the present invention, the method can be executed by a gesture recognition device with inflection points, wherein the device can be implemented by software and/or hardware, and can be used as a mobile device A part of is built into the mobile device. As shown in Figure 1, the implementation process includes:
步骤11、识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点。Step 11. Identify the gesture drawn by the user, and determine whether the gesture drawn by the user includes a preset inflection point.
在用户绘制手势之前，预先在移动设备中设置预设手势，并依据预设手势确定预设拐点。其中，预设手势可以为用户手动设置，也可以为移动设备中预先设置。在用户绘制手势的过程中，获取用户绘制的特征点，并依据用户绘制的特征点确定用户绘制的手势是否包括预设拐点。Before the user draws a gesture, a preset gesture is set in the mobile device in advance, and a preset inflection point is determined according to the preset gesture. Wherein, the preset gesture can be manually set by the user, or can be preset in the mobile device. During the process of the gesture drawn by the user, the feature points drawn by the user are acquired, and it is determined whether the gesture drawn by the user includes a preset inflection point according to the feature points drawn by the user.
其中，识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点，可以包括：Wherein, identifying the gesture drawn by the user and determining whether the gesture drawn by the user includes a preset inflection point may include:
A、获取用户绘制的手势中的当前特征点，并将当前特征点的前一个特征点确定为第二特征点，并将第二特征点的前一个特征点确定为第一特征点。A. Obtain the current feature point in the gesture drawn by the user, and determine the previous feature point of the current feature point as the second feature point, and determine the previous feature point of the second feature point as the first feature point.
在用户绘制手势时，用户依次绘制的各个特征点构成用户绘制的手势。图2是本发明第一实施例中提供的用户绘制的手势的示意图，如图2所示，在用户绘制完当前特征点P之后，将当前特征点P的前一个特征点N确定为第二特征点，并将第二特征点N的前一个特征点M确定为第一特征点。When the user draws a gesture, each feature point drawn by the user in turn constitutes the gesture drawn by the user. Fig. 2 is a schematic diagram of the gesture drawn by the user provided in the first embodiment of the present invention. As shown in Fig. 2, after the user finishes drawing the current feature point P, the previous feature point N of the current feature point P is determined as the second feature point, and determine the previous feature point M of the second feature point N as the first feature point.
B、在当前特征点的横坐标大于第一特征点和第二特征点的横坐标，且第二特征点的纵坐标大于第一特征点和当前特征点的纵坐标时，确定用户绘制的手势包括预设拐点；否则，确定用户绘制的手势不包括预设拐点。B. When the abscissa of the current feature point is greater than the abscissa of the first feature point and the second feature point, and the ordinate of the second feature point is greater than the ordinate of the first feature point and the current feature point, determine the gesture drawn by the user A preset inflection point is included; otherwise, it is determined that the gesture drawn by the user does not include a preset inflection point.
获取第一特征点M、第二特征点N和当前特征点P的坐标，依据这三个特征点的坐标，判断当前特征点P的横坐标是否大于第一特征点M和第二最大的特征点N的横坐标，若是，则继续判断第二特征点N的纵坐标是否大于第一特征点M和当前特征点P的纵坐标，若是，则确定用户绘制的手势包括预设拐点，且第二特征点N为所述预设拐点；否则，确定用户已绘制的手势不包括预设拐点。Obtain the coordinates of the first feature point M, the second feature point N, and the current feature point P, and judge whether the abscissa of the current feature point P is greater than the first feature point M and the second largest feature based on the coordinates of these three feature points The abscissa of point N, if so, continue to judge whether the ordinate of the second feature point N is greater than the ordinate of the first feature point M and the current feature point P, if so, determine that the gesture drawn by the user includes a preset inflection point, and the second The second feature point N is the preset inflection point; otherwise, it is determined that the gesture drawn by the user does not include the preset inflection point.
其中，在当前特征点P的横坐标不大于第一特征点M和第二特征点N的横坐标时，用户已绘制的手势中不包括预设拐点。Wherein, when the abscissa of the current feature point P is not greater than the abscissa of the first feature point M and the second feature point N, the gesture drawn by the user does not include the preset inflection point.
步骤12、在识别出所述用户绘制的手势包括预设拐点时，显示所述用户绘制的手势。Step 12: When it is recognized that the gesture drawn by the user includes a preset inflection point, display the gesture drawn by the user.
显示用户绘制的手势可以包括：显示用户已绘制的手势，而且在用户继续绘制手势之后，还显示用户新绘制的手势。Displaying gestures drawn by the user may include displaying gestures drawn by the user, and after the user continues to draw gestures, displaying gestures newly drawn by the user.
步骤13、识别所述用户绘制的手势是否为预设手势，并依据识别结果启动预设手势对应的预设应用程序。Step 13: Identify whether the gesture drawn by the user is a preset gesture, and start a preset application program corresponding to the preset gesture according to the recognition result.
其中，依据识别结果启动预设手势对应的预设应用程序，可以包括：Wherein, starting the preset application program corresponding to the preset gesture according to the recognition result may include:
A、在识别出所述用户绘制的手势为预设手势时，启动预设手势对应的预设应用程序。A. When it is recognized that the gesture drawn by the user is a preset gesture, start a preset application program corresponding to the preset gesture.
移动设备中还预先设置有预设手势与预设应用程序间的映射关系，在识别出用户绘制的手势为预设手势时，还依据该映射关系，确定预设手势对应的预设应用程序，并启动所述预设应用程序。即，该方法中用户可以通过绘制预设手势，触发启动预设手势对应的预设应用程序。The mobile device is also preset with a mapping relationship between a preset gesture and a preset application program, and when it is recognized that the gesture drawn by the user is a preset gesture, the preset application program corresponding to the preset gesture is also determined according to the mapping relationship, and launch the preset application. That is, in this method, the user can draw a preset gesture to trigger the start of a preset application program corresponding to the preset gesture.
B、在识别出所述用户绘制的手势不为预设手势时，停止显示所述用户绘制的手势并停止手势识别。B. When it is recognized that the gesture drawn by the user is not a preset gesture, stop displaying the gesture drawn by the user and stop gesture recognition.
在识别出用户绘制的手势不为预设手势时，即，识别出用户绘制的手势为预设手势之外的其他手势时，停止显示用户绘制的手势，并停止手势识别。When it is recognized that the gesture drawn by the user is not a preset gesture, that is, when it is recognized that the gesture drawn by the user is a gesture other than the preset gesture, stop displaying the gesture drawn by the user, and stop gesture recognition.
本发明第一实施例中提供的带拐点的手势识别方法，在用户绘制预设手势之后，启动与预设手势对应的预设应用程序，但是在用户绘制成功预设手势之前，移动设备的显示界面不显示用户绘制的手势轨迹，在绘制出预设手势中的预设拐点后显示绘制轨迹，当用户绘制的手势超出预设手势的要求，即用户绘制的手势不为预设手势时，停止手势识别并隐藏绘制轨迹。该方法依据识别结果选择性的显示用户绘制的手势，提高了移动设备的手势识别效率，满足了用户需求。In the gesture recognition method with an inflection point provided in the first embodiment of the present invention, after the user draws a preset gesture, the preset application program corresponding to the preset gesture is started, but before the user draws a successful preset gesture, the display of the mobile device The interface does not display the gesture trajectory drawn by the user, and displays the drawing trajectory after drawing the preset inflection point in the preset gesture. When the gesture drawn by the user exceeds the requirements of the preset gesture, that is, the gesture drawn by the user is not a preset gesture, stop Gesture recognition and hidden draw tracks. The method selectively displays the gesture drawn by the user according to the recognition result, improves the gesture recognition efficiency of the mobile device, and satisfies the needs of the user.
第二实施例：Second embodiment:
图3是本发明第二实施例中提供的带拐点的手势识别方法的实现流程图，该方法可以由带拐点的手势识别装置执行，其中该装置可由软件和/或硬件实现，可作为移动设备的一部分被内置在移动设备内部。如图3所示，该实现流程包括：Fig. 3 is a flow chart of the implementation of the gesture recognition method with inflection point provided in the second embodiment of the present invention, the method can be executed by the gesture recognition device with inflection point, wherein the device can be implemented by software and/or hardware, and can be used as a mobile device A part of is built into the mobile device. As shown in Figure 3, the implementation process includes:
步骤21、识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点；若是，继续执行步骤22；否则，跳转执行步骤24。Step 21. Identify the gesture drawn by the user, and determine whether the gesture drawn by the user includes a preset inflection point; if so, continue to execute step 22; otherwise, skip to execute step 24.
在用户绘制手势之前，预先在移动设备中设置预设手势，并依据预设手势确定预设拐点。其中，预设手势可以为用户手动设置，也可以为移动设备中预先设置。在用户绘制手势的过程中，获取用户绘制的特征点，并依据用户绘制的特征点确定用户绘制的手势是否包括预设拐点。Before the user draws a gesture, a preset gesture is set in the mobile device in advance, and a preset inflection point is determined according to the preset gesture. Wherein, the preset gesture can be manually set by the user, or can be preset in the mobile device. During the process of the gesture drawn by the user, the feature points drawn by the user are acquired, and it is determined whether the gesture drawn by the user includes a preset inflection point according to the feature points drawn by the user.
需要说明的是，用户已绘制的手势不包括预设拐点可以包括：用户已绘制的手势中不包括任意拐点，此时不显示用户绘制的手势，并继续获取用户绘制的手势；用户已绘制的手势中包括拐点，且包括的拐点不为预设拐点。It should be noted that the gesture drawn by the user does not include the preset inflection point, which may include: the gesture drawn by the user does not include any inflection point, the gesture drawn by the user will not be displayed at this time, and the gesture drawn by the user will continue to be obtained; the gesture drawn by the user The gesture includes an inflection point, and the included inflection point is not a preset inflection point.
步骤22、显示所述用户绘制的手势。Step 22. Display the gesture drawn by the user.
显示用户绘制的手势可以包括：显示用户已绘制的手势，而且在用户继续绘制手势之后，还显示用户新绘制的手势。Displaying gestures drawn by the user may include displaying gestures drawn by the user, and after the user continues to draw gestures, displaying gestures newly drawn by the user.
步骤23、识别所述用户绘制的手势是否为预设手势，依据识别结果启动预设手势对应的预设应用程序，并停止手势识别。Step 23: Identify whether the gesture drawn by the user is a preset gesture, start a preset application program corresponding to the preset gesture according to the recognition result, and stop gesture recognition.
其中，识别所述用户绘制的手势是否为预设手势，可以包括：确定所述用户绘制的手势中是否只包括一个预设拐点，且不包括除预设拐点外的其它拐点，若是，则确定所述用户绘制的手势为预设手势；否则，确定用户绘制的手势不为预设手势。Wherein, identifying whether the gesture drawn by the user is a preset gesture may include: determining whether the gesture drawn by the user includes only one preset inflection point and does not include other inflection points except the preset inflection point, and if so, determining The gesture drawn by the user is a preset gesture; otherwise, it is determined that the gesture drawn by the user is not a preset gesture.
若预设手势只包括一个预设拐点，则可以在用户绘制的手势中只包括一个预设拐点，且不包括除预设拐点外的其它拐点时，确定所述用户绘制的手势为预设手势；可以在用户绘制的手势中包括多个预设拐点或用户绘制的手势中包括其它拐点时，确定用户绘制的手势不为预设手势。If the preset gesture includes only one preset inflection point, it may be determined that the gesture drawn by the user is a preset gesture when the gesture drawn by the user only includes one preset inflection point and does not include other inflection points except the preset inflection point ; It may be determined that the gesture drawn by the user is not a preset gesture when the gesture drawn by the user includes multiple preset inflection points or other inflection points are included in the gesture drawn by the user.
步骤24、在识别出所述用户绘制的手势包含拐点，且包含的拐点不为预设拐点时，不显示用户已绘制的手势轨迹，并停止手势识别。Step 24: When it is recognized that the gesture drawn by the user includes an inflection point, and the included inflection point is not a preset inflection point, do not display the gesture trajectory drawn by the user, and stop gesture recognition.
在识别出用户绘制的手势包括拐点，且包含的拐点不为预设拐点时，则可以确定用户绘制的手势不为预设手势，此时不显示用户已绘制的手势轨迹，并停止手势识别。When it is recognized that the gesture drawn by the user includes an inflection point, and the included inflection point is not a preset inflection point, it can be determined that the gesture drawn by the user is not a preset gesture, and at this time the trajectory of the gesture drawn by the user is not displayed, and gesture recognition is stopped.
本发明第二实施例中提供的带拐点的手势识别方法，在用户绘制手势的过程中，实时识别用户绘制的手势，在识别出用户绘制的手势包括预设拐点之前，屏幕不显示用户绘制的手势轨迹，当用户绘制的手势出现预设拐点时，显示用户绘制的手势，当用户的绘制的手势超出预设手势的手势范围时，隐藏用户绘制的手势并且停止手势识别。The gesture recognition method with inflection points provided in the second embodiment of the present invention recognizes the gestures drawn by the user in real time during the process of the gestures drawn by the user. Gesture track, when the gesture drawn by the user has a preset inflection point, the gesture drawn by the user is displayed. When the gesture drawn by the user exceeds the gesture range of the preset gesture, the gesture drawn by the user is hidden and gesture recognition is stopped.
第三实施例：Third embodiment:
图4是本发明第三实施例中提供的带拐点的手势识别方法的实现流程图，该方法可以由带拐点的手势识别装置执行，其中该装置可由软件和/或硬件实现，可作为移动设备的一部分被内置在移动设备内部。如图4所示，本实施例中预设手势为打钩手势，该实现流程包括：Fig. 4 is an implementation flowchart of the gesture recognition method with inflection point provided in the third embodiment of the present invention, the method can be executed by a gesture recognition device with inflection point, wherein the device can be implemented by software and/or hardware, and can be used as a mobile device A part of is built into the mobile device. As shown in Figure 4, the preset gesture in this embodiment is a hook gesture, and the implementation process includes:
步骤31、获取用户绘制的当前特征点的坐标。Step 31. Obtain the coordinates of the current feature point drawn by the user.
图5是本发明第三实施例中移动设备中预先建立的坐标系的示意图，如图5所示，可以将移动设备的左上角的顶点设置为坐标原点，将水平向右的方向设置为横坐标轴X的正向，竖直向下的方向设置为纵坐标轴Y的正向。用户在移动设备的屏幕上绘制手势时，获取用户绘制的当前特征点的坐标，如获取当前特征点A的坐标。Fig. 5 is a schematic diagram of the pre-established coordinate system in the mobile device in the third embodiment of the present invention. As shown in Fig. 5, the vertex in the upper left corner of the mobile device can be set as the coordinate origin, and the horizontal direction to the right can be set as the abscissa The positive direction of the axis X, and the vertical downward direction is set as the positive direction of the vertical axis Y. When the user draws a gesture on the screen of the mobile device, the coordinates of the current feature point drawn by the user are obtained, for example, the coordinates of the current feature point A are obtained.
步骤32、将当前特征点的坐标存入预设的坐标点队列。Step 32, storing the coordinates of the current feature point into a preset coordinate point queue.
移动设备中还预先设置有坐标点队列，用于存储用户绘制的手势中各点的坐标，且坐标点队列的最大长度为3。将当前特征点的坐标存入预设的坐标点队列之前，还包括：在坐标点队列的长度小于3时，将当前特征点的坐标直接存入坐标点队列中；在坐标点队列的长度等于3时，从坐标点队列中删除一个坐标，并将当前特征点的坐标存入坐标点队列中。The mobile device is also preset with a coordinate point queue for storing the coordinates of each point in the gesture drawn by the user, and the maximum length of the coordinate point queue is 3. Before storing the coordinates of the current feature point into the preset coordinate point queue, it also includes: when the length of the coordinate point queue is less than 3, directly storing the coordinates of the current feature point in the coordinate point queue; when the length of the coordinate point queue is equal to 3, delete a coordinate from the coordinate point queue, and store the coordinates of the current feature point into the coordinate point queue.
步骤33、确定坐标点队列的长度是否等于3，若是，继续执行步骤34；否则，返回执行步骤31。Step 33, determine whether the length of the coordinate point queue is equal to 3, if so, continue to execute step 34; otherwise, return to execute step 31.
在坐标点队列的长度小于3时，继续获取用户绘制的新的当前特征点。When the length of the coordinate point queue is less than 3, continue to obtain the new current feature point drawn by the user.
步骤34、计算坐标点队列中3个特征点的平均坐标。Step 34, calculating the average coordinates of the three feature points in the coordinate point queue.
其中，计算出坐标点队列中3个特征点的平均坐标之后，继续执行步骤35，还跳转执行步骤314。Wherein, after calculating the average coordinates of the three feature points in the coordinate point queue, continue to execute step 35 , and skip to execute step 314 .
步骤35、将获取的平均坐标存入预设的平均坐标队列。Step 35, storing the obtained average coordinates into a preset average coordinate queue.
移动设备中还预先设置有平均坐标队列，且平均坐标队列的最大长度为3。将步骤34中获取的平均坐标存入平均坐标队列之前，还包括：在平均坐标队列的长度小于3时，将获取的平均坐标直接存入坐标点队列中；在平均坐标队列的长度等于3时，从平均坐标队列中删除一个坐标，并将平均坐标存入平均坐标队列中。An average coordinate queue is also preset in the mobile device, and the maximum length of the average coordinate queue is 3. Before the average coordinates obtained in step 34 are stored in the average coordinate queue, it also includes: when the length of the average coordinate queue is less than 3, the average coordinates obtained are directly stored in the coordinate point queue; when the length of the average coordinate queue is equal to 3 , delete a coordinate from the average coordinate queue, and store the average coordinate into the average coordinate queue.
步骤36、确定平均坐标队列的长度是否等于3，若是，继续执行步骤37；否则，返回执行步骤31。Step 36, determine whether the length of the average coordinate queue is equal to 3, if so, continue to execute step 37; otherwise, return to execute step 31.
步骤37、判断用户已绘制的手势轨迹中预设拐点的个数是0还是1，若是0，继续执行步骤38；若是1，跳转执行步骤315。Step 37. Determine whether the number of preset inflection points in the gesture trajectory drawn by the user is 0 or 1. If 0, continue to step 38; if 1, skip to step 315.
步骤38、获取平均坐标队列中最大的横坐标序号。Step 38, obtaining the largest abscissa serial number in the average coordinate queue.
需要说明的是，最先存入平均坐标队列的平均坐标的序号最小，最后存入平均坐标队列的平均坐标的序号最大，如，按照存入平均坐标队列的先后顺序，平均坐标队列中3个平均坐标的顺序依次为1、2和3。It should be noted that the sequence number of the average coordinate stored in the average coordinate queue first is the smallest, and the sequence number of the average coordinate stored in the average coordinate queue last is the largest. For example, according to the order of storing in the average coordinate queue, there are 3 The order of the mean coordinates is 1, 2, and 3 in that order.
步骤39、确定最大的横坐标序号是否为3，若是，继续执行步骤310；否则，跳转执行步骤313。Step 39 , determine whether the largest abscissa number is 3, if so, continue to execute step 310 ; otherwise, skip to execute step 313 .
步骤310、获取平均坐标队列中最大的纵坐标序号。Step 310, obtaining the largest ordinate number in the average coordinate queue.
步骤311、确定最大的纵坐标序号为1、2还是3，若是2，继续执行步骤312；若是1，跳转执行步骤313；若是3，继续执行步骤314Step 311, determine whether the largest ordinate number is 1, 2 or 3, if it is 2, continue to execute step 312; if it is 1, skip to execute step 313; if it is 3, continue to execute step 314
步骤312、确定用户已绘制的手势轨迹中包含的拐点的个数为1，并显示用户绘制的手势轨迹。Step 312: Determine that the number of inflection points contained in the gesture trajectory drawn by the user is 1, and display the gesture trajectory drawn by the user.
即，确定用户绘制的手势轨迹包括预设拐点，并显示用户绘制的手势轨迹。That is, it is determined that the gesture track drawn by the user includes a preset inflection point, and the gesture track drawn by the user is displayed.
步骤313、手势错误，停止手势识别，并清空坐标点队列和平均坐标队列。Step 313, gesture error, stop gesture recognition, and clear the queue of coordinate points and the queue of average coordinates.
步骤314、删除坐标队列中的一个坐标点，并返回执行步骤31。Step 314, delete a coordinate point in the coordinate queue, and return to step 31.
步骤315、获取平均坐标队列中最大的纵坐标序号。Step 315, obtaining the largest ordinate number in the average coordinate queue.
步骤316、确定最大的纵坐标序号是否为1，若是，继续执行步骤317；否则，执行步骤313。Step 316 , determine whether the largest ordinate number is 1, if so, continue to execute step 317 ; otherwise, execute step 313 .
步骤317、获取平均坐标队列中最大的横坐标序号。Step 317. Obtain the largest abscissa serial number in the average coordinate queue.
步骤318、确定最大的横坐标序号是否为3，若是，跳转执行步骤314；否则，跳转执行步骤313。Step 318 , determine whether the largest abscissa number is 3, if so, skip to step 314 ; otherwise, skip to step 313 .
本发明第三实施例中提供的带拐点的手势识别方法中，预设手势为打钩手势，移动设备中预先设置有坐标点队列和平均坐标队列，其中坐标点队列记录用户触屏的坐标点，平均坐标队列记录坐标点队列中三点坐标的平均值坐标，采用平均坐标队列中的平均坐标确定绘制的手势中是否包括预设拐点，并确定绘制的手势是否为预设手势，提高了手势识别的准确率。该方法从绘制的手势中获取三个特征点，并依据特征点的坐标识别绘制的手势。In the gesture recognition method with an inflection point provided in the third embodiment of the present invention, the preset gesture is a check gesture, and a coordinate point queue and an average coordinate queue are preset in the mobile device, wherein the coordinate point queue records the coordinate points of the user's touch screen, The average coordinate queue records the average coordinates of the coordinates of the three points in the coordinate point queue, uses the average coordinates in the average coordinate queue to determine whether the drawn gesture includes a preset inflection point, and determines whether the drawn gesture is a preset gesture, which improves gesture recognition the accuracy rate. This method obtains three feature points from the drawn gesture, and recognizes the drawn gesture according to the coordinates of the feature points.
本发明第四实施例为这装置实施例，本发明方法实施例和装置实施例属于同一构思，在装置实施例中未详尽描述的细节内容，可以参考上述方法实施例。The fourth embodiment of the present invention is the device embodiment. The method embodiment and the device embodiment of the present invention belong to the same concept. For the details not described in detail in the device embodiment, you can refer to the above method embodiment.
第四实施例：Fourth embodiment:
图6是本发明第四实施例中提供的带拐点的手势识别装置的结构示意图，如图6所示，该带拐点的手势识别装置可以包括：拐点识别单元41，用于识别用户绘制的手势，确定所述用户绘制的手势是否包括预设拐点；手势显示单元42，用于在识别出所述用户绘制的手势包括预设拐点时，显示所述用户绘制的手势；手势识别单元43，用于识别所述用户绘制的手势是否为预设手势；程序启动单元44，用于依据识别结果启动预设手势对应的预设应用程序。Fig. 6 is a schematic structural diagram of a gesture recognition device with an inflection point provided in the fourth embodiment of the present invention. As shown in Fig. 6, the gesture recognition device with an inflection point may include: an inflection point recognition unit 41 for recognizing gestures drawn by the user , to determine whether the gesture drawn by the user includes a preset inflection point; the gesture display unit 42 is configured to display the gesture drawn by the user when it is recognized that the gesture drawn by the user includes a preset inflection point; the gesture recognition unit 43 is used to To identify whether the gesture drawn by the user is a preset gesture; the program launching unit 44 is configured to start a preset application program corresponding to the preset gesture according to the recognition result.
其中，该装置还可以包括：不显示单元，用于在识别出所述用户绘制的手势包含拐点，且包含的拐点不为预设拐点时，不显示用户已绘制的手势轨迹，并停止手势识别。Wherein, the device may further include: a non-display unit, configured to, when it is recognized that the gesture drawn by the user contains an inflection point, and the inflection point included is not a preset inflection point, not display the gesture trajectory drawn by the user, and stop the gesture recognition .
其中，程序启动单元44可以包括：程序启动子单元，用于在识别出所述用户绘制的手势为预设手势时，启动预设手势对应的预设应用程序；停止显示子单元，用于在识别出所述用户绘制的手势不为预设手势时，停止显示所述用户绘制的手势并停止手势识别。Wherein, the program starting unit 44 may include: a program starting subunit, configured to start a preset application program corresponding to the preset gesture when it is recognized that the gesture drawn by the user is a preset gesture; When it is recognized that the gesture drawn by the user is not a preset gesture, stop displaying the gesture drawn by the user and stop gesture recognition.
其中，拐点识别单元41可以包括：特征点获取子单元，用于获取用户绘制的手势中的当前特征点，并将当前特征点的前一个特征点确定为第二特征点，并将第二特征点的前一个特征点确定为第一特征点；拐点识别子单元，用于在当前特征点的横坐标大于第一特征点和第二特征点的横坐标，且第二特征点的纵坐标大于第一特征点和当前特征点的纵坐标时，确定用户绘制的手势包括预设拐点；否则，确定用户绘制的手势不包括预设拐点。Wherein, the inflection point identification unit 41 may include: a feature point acquisition subunit, configured to acquire the current feature point in the gesture drawn by the user, and determine the previous feature point of the current feature point as the second feature point, and use the second feature point The previous feature point of the point is determined as the first feature point; the inflection point identification subunit is used to make the abscissa of the current feature point greater than the abscissa of the first feature point and the second feature point, and the ordinate of the second feature point is greater than When the first feature point is the ordinate of the current feature point, it is determined that the gesture drawn by the user includes a preset inflection point; otherwise, it is determined that the gesture drawn by the user does not include a preset inflection point.
其中，手势识别单元43具体可以用于：确定所述用户绘制的手势中是否只包括一个预设拐点，且不包括除预设拐点外的其它拐点，若是，则确定所述用户绘制的手势为预设手势；否则，确定用户绘制的手势不为预设手势。Wherein, the gesture recognition unit 43 may be specifically configured to: determine whether the gesture drawn by the user includes only one preset inflection point and does not include other inflection points except the preset inflection point; if so, determine that the gesture drawn by the user is A default gesture; otherwise, determine that the user-drawn gesture is not a default gesture.
本发明第四实施例中提供的带拐点的手势识别装置，在用户绘制手势的过程中，实时识别用户绘制的手势，并依据识别结果选择性的显示用户绘制的手势，提高了移动设备的手势识别效率，满足了用户需求。The gesture recognition device with inflection points provided in the fourth embodiment of the present invention recognizes the gestures drawn by the user in real time during the gesture drawing process of the user, and selectively displays the gestures drawn by the user according to the recognition results, which improves the gesture recognition of mobile devices. Recognition efficiency meets user needs.
上所述仅为本发明实施例的优选实施例，并不用于限制本发明实施例，对于本领域技术人员而言，本发明实施例可以有各种改动和变化。凡在本发明实施例的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本发明实施例的保护范围之内。The above descriptions are only preferred embodiments of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various modifications and changes may be made to the embodiments of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention shall be included within the protection scope of the embodiments of the present invention.
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| CN201410715486.7ACN104460999B (en) | 2014-11-28 | 2014-11-28 | A kind of gesture identification method and device with flex point |
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| CN201410715486.7AActiveCN104460999B (en) | 2014-11-28 | 2014-11-28 | A kind of gesture identification method and device with flex point |
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