CN112135060A

Movatterモバイル変換

Info

Publication number: CN112135060A
Application number: CN202011141887.8A
Authority: CN
Inventors: 李显贤
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2020-12-25
Anticipated expiration: 2040-10-22
Also published as: CN112135060B

Abstract

A focus processing method, comprising: determining to launch a camera application; controlling focusing through a first focusing strategy; acquiring a focusing result of the first focusing strategy; and controlling to take a picture directly or trigger a second focusing strategy according to the focusing result, and controlling to focus according to the second focusing strategy. By the method, the mobile terminal can automatically determine different focusing strategies according to the current light conditions during the photographing process of the user, and then complete focusing according to the corresponding focusing strategies. The problem of shooting and focusing failure of the camera of the mobile terminal in a night scene or a dark environment scene is solved, and the dark environment focusing effect is achieved on the premise that the number of the cameras is not increased or TOF auxiliary focusing is not increased.

Description

Focusing processing method, mobile terminal and computer storage medium

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to a focusing method, a mobile terminal, and a computer storage medium.

Background

Along with the popularization of the mobile terminal, the photographing experience requirements of consumers on the mobile terminal are higher and higher, and besides normal daytime environment photographing and video, the consumers have higher and higher requirements on night scene or dark environment photographing. The existing mobile terminal camera shoots a night scene or a dark environment, because the light incoming amount is small, the scene is dark and the focusing capacity is easy to be burnt, so that the shooting blur is caused, and the user experience of consumers is influenced.

Disclosure of Invention

The invention mainly aims to provide a focusing processing method, a mobile terminal and a computer storage medium, and aims to solve the problem that the mobile terminal cannot perform quick focusing when shooting at night.

In order to achieve the above object, a focusing method according to a first aspect of an embodiment of the present invention includes: determining to launch a camera application; controlling focusing through a first focusing strategy; acquiring a focusing result of the first focusing strategy; and controlling to take a picture directly or trigger a second focusing strategy according to the focusing result, and controlling to focus according to the second focusing strategy.

Optionally, before the step of controlling focusing by the first focusing strategy, the method further comprises:

obtaining the ambient brightness;

and when the ambient brightness meets a preset brightness threshold, determining to focus through the first focusing strategy.

Optionally, the step of controlling focusing by a first focusing strategy includes:

focusing is carried out through contrast focusing and phase focusing respectively;

and respectively acquiring a first control parameter of the camera driving motor corresponding to contrast focusing and a second control parameter of the camera driving motor corresponding to phase focusing.

Optionally, the step of focusing by contrast focusing and phase focusing, respectively, comprises:

outputting a first control parameter of a camera driving motor to a register in a contrast focusing mode, wherein the first control parameter comprises a moving parameter for controlling the moving distance of a camera module;

and outputting a second control parameter of the camera driving motor to a register in a phase focusing mode, wherein the first control parameter comprises a moving parameter for controlling the moving distance of the camera module.

Optionally, the focusing result comprises: the first control parameter is the same as the second control parameter; the first control parameter is different from the second control parameter.

Optionally, the step of controlling to take a picture directly or trigger a second focusing strategy according to the focusing result, and controlling to focus according to the second focusing strategy includes:

when the first control parameter is the same as the second control parameter, directly controlling to take a picture;

and when the first control parameter is different from the second control parameter, controlling to focus according to the second focusing strategy.

Optionally, the step of controlling focusing by the second focusing strategy includes:

determining a brightness region of interest of a current shooting picture;

performing contrast focusing by taking the brightness interested region as a focusing region;

and taking a picture according to the focusing parameters determined by the contrast focusing.

Optionally, the step of determining a brightness region of interest of the current captured picture includes:

acquiring a brightness value corresponding to each photosensitive pixel of the photosensitive element within a preset field value;

determining a target photosensitive pixel with the highest pixel brightness value;

and determining the area in the corresponding range as a brightness interest area according to the target photosensitive pixel.

A second aspect of an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes a processor and a memory;

the memory is used for storing an executable program;

the processor is used for executing the executable program to realize the focusing processing method.

A third aspect of the embodiments of the present invention provides a computer storage medium, where an executable program is stored on the computer storage medium, and the executable program is executed to implement the focusing processing method described above.

The embodiment of the invention has the following beneficial effects:

the focusing processing method, the mobile terminal and the computer storage medium in the embodiment of the invention perform focusing according to the first focusing strategy after the camera application is started so as to determine whether focusing can be completed under the current photographing condition, and if focusing can be completed, photographing is controlled according to the current focusing result. If the focusing cannot be finished, the current photographing environment is poor in light, and therefore the focusing is finished in the environment poor in light by adopting the second focusing strategy. By the method, the mobile terminal can automatically determine different focusing strategies according to the current light conditions during the photographing process of the user, and then complete focusing according to the corresponding focusing strategies. The problem of shooting and focusing failure of the camera of the mobile terminal in a night scene or a dark environment scene is solved, and the dark environment focusing effect is achieved on the premise that the number of the cameras is not increased or TOF auxiliary focusing is not increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wireless communication system of a mobile terminal according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for focusing according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a phase focusing principle according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like. The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, themobile terminal 100 may include: RF (Radio Frequency)unit 101,WiFi module 102,audio output unit 103, a/V (audio/video)input unit 104,sensor 105,display unit 106,user input unit 107,interface unit 108,memory 109,processor 110, andpower supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

theradio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to theprocessor 110; in addition, the uplink data is transmitted to the base station. Typically,radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, theradio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through theWiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows theWiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

Theaudio output unit 103 may convert audio data received by theradio frequency unit 101 or theWiFi module 102 or stored in thememory 109 into an audio signal and output as sound when themobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, theaudio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). Theaudio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and amicrophone 1042, theGraphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on thedisplay unit 106. The image frames processed by thegraphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via theradio frequency unit 101 or theWiFi module 102. Themicrophone 1042 may receive sounds (audio data) via themicrophone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via theradio frequency unit 101 in case of a phone call mode. Themicrophone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

Themobile terminal 100 also includes at least onesensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of thedisplay panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off thedisplay panel 1061 and/or a backlight when themobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Thedisplay unit 106 is used to display information input by a user or information provided to the user. TheDisplay unit 106 may include aDisplay panel 1061, and theDisplay panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

Theuser input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, theuser input unit 107 may include atouch panel 1071 andother input devices 1072. Thetouch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near thetouch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. Thetouch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to theprocessor 110, and can receive and execute commands sent by theprocessor 110. In addition, thetouch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to thetouch panel 1071, theuser input unit 107 may includeother input devices 1072. In particular,other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, thetouch panel 1071 may cover thedisplay panel 1061, and when thetouch panel 1071 detects a touch operation thereon or nearby, thetouch panel 1071 transmits the touch operation to theprocessor 110 to determine the type of the touch event, and then theprocessor 110 provides a corresponding visual output on thedisplay panel 1061 according to the type of the touch event. Although thetouch panel 1071 and thedisplay panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, thetouch panel 1071 and thedisplay panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

Theinterface unit 108 serves as an interface through which at least one external device is connected to themobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Theinterface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within themobile terminal 100 or may be used to transmit data between themobile terminal 100 and external devices.

Thememory 109 may be used to store software programs as well as various data. Thememory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, thememory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

Theprocessor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in thememory 109 and calling data stored in thememory 109, thereby performing overall monitoring of the mobile terminal.Processor 110 may include one or more processing units; preferably, theprocessor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into theprocessor 110.

Themobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, thepower supply 111 may be logically connected to theprocessor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, themobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and anIP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 andother eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to theEPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032,other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

TheIP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

Fig. 3 is a flowchart of a focusing method according to an embodiment of the present invention. In this embodiment, the focusing processing method may be applied to the mobile terminal shown in fig. 1 or fig. 2, and it is understood that the focusing processing method may also be applied to electronic devices such as a tablet, an electronic book, and the like. The focusing processing method comprises the following steps:

step S310, determining to start a camera application;

step S320, controlling to focus through a first focusing strategy;

step S330, acquiring a focusing result of the first focusing strategy;

step S340, direct photographing is controlled according to the focusing result or a second focusing strategy is triggered, and focusing is controlled according to the second focusing strategy.

Through the embodiment, in the shooting process, the mobile terminal can automatically determine different focusing strategies according to the current light conditions, and further complete focusing according to the corresponding focusing strategies. The problem of shooting and focusing failure of the camera of the mobile terminal in a night scene or a dark environment scene is solved, and the dark environment focusing effect is achieved on the premise that the number of the cameras is not increased or TOF auxiliary focusing is not increased.

In step S310, it is determined to start the camera application.

In particular, the mobile terminal may install different applications to perform different operations. In the embodiment, the mobile terminal is provided with a camera application, the mobile terminal can be controlled to enter a camera mode by clicking a camera application icon, and in the camera mode, a camera is started to focus and shoot an image. In the present embodiment, whether to start the camera application is determined by detecting information of the touched application icon. In other embodiments, the camera application may also be started by associating a physical key with a start camera instruction, so that when detecting that the physical key is pressed to generate a signal, the control triggers an instruction to start the camera application.

In step S320, control focuses through a first focus strategy.

Specifically, the first focusing strategy is used for detecting whether focusing can be completed in a conventional focusing mode under the current shooting environment, and if focusing can be completed, shooting is directly controlled; if the focusing cannot be completed, the second focusing strategy is started to meet the focusing requirement in the special environment, in this embodiment, the special environment is a night environment or a photographing environment with weak light.

In the present embodiment, step S320 includes the steps of:

step S3201 of focusing by contrast focusing and phase focusing, respectively;

step S3202, a first control parameter of the camera driving motor corresponding to contrast focusing and a second control parameter of the camera driving motor corresponding to phase focusing are acquired, respectively.

Specifically, the principle of contrast focusing is as follows: by driving the lens, the focus is changed along the axis pointing to the subject, and an image is acquired at each focus, similar to point-by-point scanning; firstly, digitizing an image obtained at each focus, wherein the digitized image is an integer matrix; solving the contrast value of the image, and comparing the contrast values obtained on each focus to obtain the maximum value; and driving the lens, and placing the focus on the focus with the largest contrast value to obtain the correct focus, namely completing focusing.

The principle of phase focusing is as follows: as shown in fig. 4, taking an on-axis point as an example, the upper ray represents a ray passing through the upper half lens, and the lower ray represents a ray passing through the lower half lens, it can be seen that when the CCD is in focus, the upper half CCD receives the upper half ray, and the lower half CCD receives the lower half ray, and vice versa when in focus. If one can distinguish whether the light comes from the upper or lower half of the lens, one can know whether it is in front of or behind focus. The closer the CCD is to the ideal imaging surface, the closer the two paths of light rays are imaged on the CCD, and when the image is clear, the two paths of light rays are superposed into a point, so that the correct focus can be determined, namely the focusing is finished.

Wherein, step S3201 includes:

step S32011, outputting a first control parameter of the camera driving motor to a register in the contrast focusing manner, where the first control parameter includes a movement parameter for controlling a movement distance of the camera module;

step S32012, outputting a second control parameter of the camera driving motor to a register in the phase focusing manner, where the first control parameter includes a movement parameter for controlling a movement distance of the camera module.

Specifically, the first control parameter includes a code value of the stepping motor. In the present embodiment, the motor preset code is linear with the motor stroke, that is, the set code value is related with the lens moving distance. In the focusing process of the camera, firstly, contrast focusing is used, a Code value of motor staying corresponding to the contrast focusing is output to the register, then phase focusing is carried out, and a Code value of motor staying corresponding to the phase focusing is output to the register.

Further, in order to improve the focusing efficiency and avoid unnecessary focusing steps, the focusing control method provided by the present application further includes, before step S320:

step A: obtaining the ambient brightness;

and B: and when the ambient brightness meets a preset brightness threshold, determining to focus through the first focusing strategy.

Specifically, in step a, the ambient brightness refers to the light condition of the external environment where the mobile terminal is located, for example, the day, the night, the cloudy day, or the indoor space with weak light. In a specific implementation, the detection may be performed by a light sensor of the mobile terminal. In step B, the preset brightness threshold is a preset brightness parameter representing different light conditions, and in the present embodiment, the sufficient light condition and the weak light condition are distinguished by the preset brightness threshold. Under the condition of sufficient light, the focusing and photographing can be directly carried out through a conventional focusing mode, and only under the condition of weak light, the focusing process of the application is triggered.

In step S330, a focusing result of the first focusing strategy is obtained;

specifically, the focusing result includes: the first control parameter is the same as the second control parameter; the first control parameter is different from the second control parameter. When the method is realized, the Code value of register contrast focusing and the Code value of phase focusing are read by a CPU and then are compared.

In step S340, direct photographing is controlled according to the focusing result or a second focusing strategy is triggered, and focusing is controlled according to the second focusing strategy.

Specifically, since phase focusing is sensitive to brightness, phase focusing is accurate in a bright environment, and the phase focusing effect of the bright environment is equal to the contrast focusing effect, so that the Code value of phase focusing is equal to the contrast focusing Code value. In a dark environment, the phase focusing is inaccurate, and the contrast focusing is also possible to fail, so that the Code value of the phase focusing is not equal to the Code value of the contrast focusing, and if the Code values are determined to be inconsistent, the focusing is triggered through a second focusing strategy.

In the present embodiment, step S340 includes:

In this embodiment, the step of performing focusing according to the second focusing strategy control includes:

step 3401, determining a brightness region of interest of a current shooting picture;

step S3402, performing contrast focusing by taking the brightness region of interest as a focusing region;

and step S3403, photographing according to the focusing parameters determined by the contrast focusing.

In the embodiment, the focusing area in the shooting environment with weak light at the present time is determined again, and the contrast focusing is performed on the focusing area again, so that the corresponding focusing parameters are determined to complete the rapid focusing in the night environment with weak light.

Wherein the brightness region of interest is a brightness region determined by a sensing element of the sensing elements. In a weak light environment, the parameters of the pixels of the whole image are similar to each other, so that the conventional contrast focusing or phase focusing cannot be focused accurately, and the finally determined image effect is very fuzzy. It can be known through analysis of a photographed object in an environment with weak light that the object to be photographed is located in a photographed picture close to the middle area and has a certain brightness, so that the focusing area in the current environment is re-determined by obtaining the brightness value of the photosensitive pixel in the specific area, and the focusing analysis is performed on the image in the focusing area, so that the focusing effect meeting the photographing requirement of a user can be achieved. In the present embodiment, the step S3401 includes:

step 34011, obtaining a brightness value corresponding to each photosensitive pixel of the photosensitive element in a preset field value;

step 34012, determining a target photosensitive pixel with the highest pixel brightness value;

and step S34013, determining an area in the corresponding range as a brightness interest area according to the target photosensitive pixel.

Specifically, in the present embodiment, the preset field value is 0.5 field. In other embodiments, other values may be set. And reading the brightest photosensitive pixel as a target photosensitive pixel, and taking the pixel as the center to re-divide the X interval and the Y area to obtain a new focusing area. And then the camera carries out contrast focusing by using the new focusing area, and the focusing result is the final focusing effect.

Fig. 5 is a schematic structural component diagram of themobile terminal 100 according to an embodiment of the present application, where themobile terminal 100 includes: atouch panel 1071; aprocessor 110; amemory 109 connected to theprocessor 110, wherein thememory 109 contains a control instruction, and when theprocessor 110 reads the control instruction, themobile terminal 100 is controlled to implement the following steps:

determining to launch a camera application; controlling focusing through a first focusing strategy; acquiring a focusing result of the first focusing strategy; and controlling to take a picture directly or trigger a second focusing strategy according to the focusing result, and controlling to focus according to the second focusing strategy.

obtaining the ambient brightness;

determining a brightness region of interest of a current shooting picture;

The mobile terminal in the embodiment of the invention performs focusing according to the first focusing strategy after the camera application is started so as to determine whether focusing can be completed under the current photographing condition, and controls photographing according to the current focusing result if focusing can be completed. If the focusing cannot be finished, the current photographing environment is poor in light, and therefore the focusing is finished in the environment poor in light by adopting the second focusing strategy. By the method, the mobile terminal can automatically determine different focusing strategies according to the current light conditions during the photographing process of the user, and then complete focusing according to the corresponding focusing strategies. The problem of shooting and focusing failure of the camera of the mobile terminal in a night scene or a dark environment scene is solved, and the dark environment focusing effect is achieved on the premise that the number of the cameras is not increased or TOF auxiliary focusing is not increased.

An embodiment of the present invention further provides a computer storage medium, where an executable program is stored in the computer storage medium, and when the executable program is executed, the following steps are implemented:

obtaining the ambient brightness;

determining a brightness region of interest of a current shooting picture;

The computer storage medium in the embodiment of the invention performs focusing according to the first focusing strategy after the camera application is started so as to determine whether focusing can be completed under the current photographing condition, and controls photographing according to the current focusing result if focusing can be completed. If the focusing cannot be finished, the current photographing environment is poor in light, and therefore the focusing is finished in the environment poor in light by adopting the second focusing strategy. By the method, the mobile terminal can automatically determine different focusing strategies according to the current light conditions during the photographing process of the user, and then complete focusing according to the corresponding focusing strategies. The problem of shooting and focusing failure of the camera of the mobile terminal in a night scene or a dark environment scene is solved, and the dark environment focusing effect is achieved on the premise that the number of the cameras is not increased or TOF auxiliary focusing is not increased.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A focusing processing method is characterized by comprising the following steps:

determining to launch a camera application;

controlling focusing through a first focusing strategy;

acquiring a focusing result of the first focusing strategy;

and controlling to take a picture directly or trigger a second focusing strategy according to the focusing result, and controlling to focus according to the second focusing strategy.

2. The method of claim 1, wherein prior to the step of controlling focusing via the first focusing strategy, the method further comprises:

obtaining the ambient brightness;

3. The method of claim 1, wherein the step of controlling focusing via a first focusing strategy comprises:

4. The method of claim 3, wherein the step of focusing by contrast focusing and phase focusing, respectively, comprises:

5. The method of claim 3, wherein the focusing result comprises: the first control parameter is the same as the second control parameter; the first control parameter is different from the second control parameter.

6. The method of claim 5, wherein the step of controlling to take a picture directly or trigger a second focusing strategy according to the focusing result and controlling to focus according to the second focusing strategy comprises:

7. The method of claim 1, wherein the second focus strategy controls the step of focusing, comprising:

determining a brightness region of interest of a current shooting picture;

8. The method of claim 7, wherein the step of determining the brightness interest zone of the current shot comprises:

9. A mobile terminal, characterized in that the mobile terminal comprises a processor and a memory;

the memory is used for storing an executable program;

the processor is configured to execute the executable program to implement the focus processing method according to any one of claims 1 to 8.

10. A computer storage medium having stored thereon an executable program that when executed implements the focus processing method of any one of claims 1-8.