WO2016110012A1 - 一种选择对焦区域的方法及装置、计算机可读存储介质 - Google Patents
一种选择对焦区域的方法及装置、计算机可读存储介质 Download PDFInfo
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- WO2016110012A1 WO2016110012A1 PCT/CN2015/075722 CN2015075722W WO2016110012A1 WO 2016110012 A1 WO2016110012 A1 WO 2016110012A1 CN 2015075722 W CN2015075722 W CN 2015075722W WO 2016110012 A1 WO2016110012 A1 WO 2016110012A1
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- area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/675—Focus control based on electronic image sensor signals comprising setting of focusing regions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
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- the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for selecting a focus area, and a computer readable storage medium.
- Camera functionality is a very important application on smart devices such as smartphones or tablets. How to achieve higher quality photos is an important issue for camera applications.
- the focus area selects the face area to ensure the accuracy of the face focus, and finally makes the human body image clearer.
- An object of the embodiments of the present invention is to provide a method and apparatus for selecting a focus area, and a computer readable storage medium, which automatically selects an active person in the scene as a focus area, so that the positive effect of the active person in the scene is clearer and meets different people.
- the need for photographing brings fun to the photo.
- an embodiment of the present invention provides a method for selecting a focus area, including:
- the preset operation is a gesture motion, and correspondingly, the acquiring a target location for performing a preset operation in the current screen is specifically:
- the preset operation is to emit a sound, and correspondingly, the acquiring a target position for performing a preset operation in the current screen is specifically:
- the determining, by the target location, a target area from the current picture specifically:
- a rectangular area is demarcated from the current picture as the target area according to a preset rule.
- the determining, according to the face information in the target area, the focus area of the current picture specifically includes:
- the statistical analysis is performed on all the face regions in the target area, and the focus area of the current picture is selected, specifically:
- An embodiment of the present invention further provides an apparatus for selecting a focus area, including:
- a picture acquisition module configured to acquire a current picture according to a user operation
- a location acquiring module configured to acquire a target location in the current screen for performing a preset operation
- the area detecting module is configured to demarcate a target area from the current picture according to the target location, and acquire face information in the target area;
- a selection module configured to determine a focus area of the current picture according to the face information in the target area.
- the preset operation is a gesture motion.
- the location acquiring module includes:
- a trajectory detection module configured to detect a trajectory of the gesture motion in the current picture
- the gesture acquiring module is configured to acquire a center position of the gesture motion in the current screen according to the trajectory of the gesture motion, and determine that the center position is the target location.
- the preset operation is to emit a sound
- the location acquiring module includes:
- the sound acquiring module is configured to acquire a target position in the current screen that emits a preset sound.
- the area detecting module includes:
- the area determining module is configured to use the target location as a center point to demarcate a rectangular area from the current picture as the target area according to a preset rule.
- the selection module includes:
- the first selection sub-module is configured to detect face information of other areas in the current picture if the number of faces in the target area is a first value, and select according to face information of other areas Select the focus area of the current picture;
- a second selection sub-module configured to select a face area of the target area as a focus area of the current picture if the number of faces in the target area is equal to a second value
- the third selection sub-module is configured to perform statistical analysis on all the face regions in the target region if the number of faces in the target region is greater than or equal to a third value, and select a focus region of the current image.
- the third selection submodule includes:
- a first unit configured to select a largest face area of all face areas in the target area as a focus area of the face image
- a second unit configured to select a central area of all face regions in the target area as a focus area of the current picture
- the third unit is configured to use all the face regions in the target area as the focus area.
- a target area is demarcated from a current picture according to a target position in which a preset operation is performed in a current picture, and the target area is active in the current picture.
- a molecular region determining a focus region of the current image according to the face information in the target region, and determining the focus region to focus, so that the photographing effect of the active molecules in the scene is clearer, and the photographing belt is satisfied for the different interest groups. It’s fun and enhances the user experience.
- FIG. 1 is a schematic diagram showing the basic steps of a method for selecting a focus area according to an embodiment of the present invention
- FIG. 2 is a schematic diagram showing a method for delineating a target area in a method for selecting a focus area according to an embodiment of the present invention
- FIG. 3 is a schematic diagram showing specific steps of an embodiment for selecting a focus area by using a gesture motion method according to an embodiment of the present invention
- Fig. 4 is a view showing the configuration of a device for selecting a focus area in the embodiment of the present invention.
- the embodiment of the present invention provides a method and a device for selecting a focus area according to the problem that the focus technology in the prior art cannot meet the requirements of some active molecules for photographing, and the target position of the preset operation is performed from the current screen according to the current screen. Defining a target area, which is an active molecular area in the current picture; determining a focus area of the current picture according to the face information in the target area, and determining the focus area to focus, so that the active elements in the scene The photo effect is more clear, and the people who are interested in different interests bring joy to the photo and enhance the user experience.
- an embodiment of the present invention provides a method for selecting a focus area, including:
- Step 11 Acquire a current picture according to a user operation
- Step 12 Acquire a target location in the current screen for performing a preset operation
- Step 13 Demarcate a target area from the current picture according to the target location, and acquire face information in the target area;
- Step 14 Determine a focus area of the current picture according to the face information in the target area.
- the method for selecting a focus area is generally applicable to a situation in which a plurality of people take a group photo to meet the needs of an active person, but is also suitable for a person taking a picture, for example, the current photographing environment is dim and cannot be detected.
- the face area in the current environment at this time, the target position can be located by performing a preset operation, and then the target area is positioned, thereby narrowing the detection area of the face detection technology, and performing face detection again, if the face can be detected,
- the focus area is focused on the focus area; if the face is still not detected, the midpoint or the target position of the target area can be used as the focus area for focusing.
- the embodiment of the present invention It is implemented based on a variety of assistive technologies, such as face detection technology, gesture somatosensory detection technology, sound detection and positioning technology, skin color detection technology, etc., which are not enumerated here.
- the current picture can be acquired by the camera.
- the current picture is a preview image, and the current picture is only used to frame the first captured area, and the position of the person or object in the current picture can be Any change or increase or decrease.
- the preset operation in the specific embodiment of the present invention may be gesture motion, sound generation or other motion mode. Specifically, when the preset operation is a gesture motion, correspondingly, step 12 is specifically:
- Step 121 Detect a trajectory of gesture motion in the current picture
- Step 122 Acquire a center position of the gesture motion in the current screen according to the trajectory of the gesture motion, and determine that the center position is the target location.
- a method for detecting gesture motion is defined in advance, and the trajectory of the gesture motion is first detected, and then the center position of the gesture motion is obtained by a mathematical algorithm, and the center position is the target position.
- step 12 is specifically:
- Step 123 Acquire a target position in the current picture that emits a preset sound.
- a radar positioning method may be used to determine a target position for emitting a preset sound; wherein the preset sound is used to prevent sounds other than the current picture from interfering with the positional positioning of the embodiment of the present invention, and the specific The method is not explained in detail in the embodiment of the present invention.
- step 13 is specifically:
- Step 131 Delimit a rectangular area from the current picture as the target area according to a preset rule according to a preset rule.
- step 14 specifically includes:
- Step 141 If the number of faces in the target area is the first value, detecting face information of other areas in the current picture, and selecting a focus area of the current picture according to face information of other areas;
- the first value may be a first preset value, for example, the first value is 0;
- Step 142 if the number of faces in the target area is equal to the second value, the face area of the target area is selected as the focus area of the current picture; wherein the second value may be the second preset value. , for example, the second value is 1;
- Step 143 If the number of faces in the target area is greater than or equal to a third value, perform statistical analysis on all face areas in the target area, and select a focus area of the current picture; wherein, the third The value can be a third predetermined value, for example the third value is two.
- step 143 is specifically:
- Step 1431 selecting a largest face area of all face areas in the target area as a focus area of the face image.
- Step 1432 selecting a central area of all face regions in the target area as a focus area of the current picture.
- step 1433 all face regions in the target area are used as focus areas.
- the gesture motion is used as the preset operation in conjunction with FIG. 3, and the embodiment of the present invention is implemented based on the gesture body sensing technology.
- the specific steps are as follows:
- Step 1 Obtain image data of the current screen:
- Step 2 detecting a face in the current image scene, and performing face information recording, including area information and a number of faces COUNT1;
- Step 4 Start a gesture detection function, detect whether there is a gesture motion in the current scene, and record the related information;
- Step 5 Analyze the gesture detection result; if the gesture motion is not detected, perform statistical analysis on the detected face region to select an appropriate focus area.
- the largest face may be selected as the focus area.
- the selection method includes: selecting a central area of the left and right faces or a face of a middle size, or a plurality of areas simultaneously focusing.
- Step 6 Analyze the face information near the gesture, and further analyze the face information near the gesture; if the face number COUNT2 is equal to 0, perform statistical analysis on the previously detected face number COUNT1 to select a suitable focus area, and select In this way, you can select the largest face as the focus area.
- Other options include: selecting the center area of the left and right faces or the face of the middle size, or multiple areas to focus at the same time. After selecting the focus area, exit the process or go to step 1;
- the number of faces COUNT2 is greater than 1, statistical analysis is performed on the detected COUNT2 face to select an appropriate focus area.
- the largest face can be selected as the focus area.
- Other options include: selecting the center area of the left and right faces or the face of the middle size, or multiple areas to focus at the same time. After selecting the focus area above, exit the process or go to step 1.
- the embodiment of the invention further provides a computer readable storage medium, the storage medium comprising a group An instruction for performing the method of selecting a focus area as described above.
- an embodiment of the present invention further provides an apparatus for selecting a focus area, including:
- the screen obtaining module 41 is configured to acquire a current screen according to an operation of the user;
- the location obtaining module 42 is configured to acquire a target location in the current screen for performing a preset operation
- the area detecting module 43 is configured to demarcate a target area from the current picture according to the target location, and acquire face information in the target area;
- the selecting module 44 is configured to determine a focus area of the current picture according to the face information in the target area.
- the preset operation is a gesture motion
- the location obtaining module 42 includes:
- a trajectory detection module configured to detect a trajectory of the gesture motion in the current picture
- the gesture acquiring module is configured to acquire a center position of the gesture motion in the current screen according to the trajectory of the gesture motion, and determine that the center position is the target location.
- the preset operation is to emit a sound
- the location obtaining module 42 includes:
- the sound acquiring module is configured to acquire a target position in the current screen that emits a preset sound.
- the area detecting module 43 includes:
- the area determining module is configured to use the target location as a center point to demarcate a rectangular area from the current picture as the target area according to a preset rule.
- the selecting module 44 includes:
- the first selection sub-module is configured to detect face information of other areas in the current picture if the number of faces in the target area is a first value, and select according to face information of other areas Selecting a focus area of the current picture; wherein the first value may be a first preset value, for example, the first value is 0;
- a second selection sub-module configured to: if the number of faces in the target area is equal to a second value, select a face area of the target area as a focus area of the current picture; wherein the second value may be a second preset value, for example, the first value is 1;
- a third selection sub-module configured to perform statistical analysis on all face regions in the target region if the number of faces in the target region is greater than or equal to 2, and select a focus region of the current image;
- the third value may be a third preset value, for example, the third value is zero.
- the third selection submodule includes:
- a first unit configured to select a largest face area of all face areas in the target area as a focus area of the face image
- a second unit configured to select a central area of all face regions in the target area as a focus area of the current picture
- the third unit is configured to use all the face regions in the target area as the focus area.
- a target area is demarcated from a current picture according to a target position in which a preset operation is performed in a current picture, where the target area is an active molecular area in a current picture; and according to the target area
- the face information in the middle determines the focus area of the current picture, and the determined focus area is in focus, so that the photographing effect of the active molecules in the scene is clearer, and the people who are interested in different interests bring joy to the photograph and improve the user experience.
- the picture acquisition module 41, the location acquisition module 42, the area detection module 43, and the selection module 44 may all be processed by a central processing unit (CPU) in a device that selects a focus area, or digital signal processing ( DSP, Digital Signal Processor, or Field Programmable Gate Array (FPGA), etc.; the CPU, DSP, and FPGA can be built in a device that selects a focus area.
- CPU central processing unit
- DSP Digital Signal Processor
- FPGA Field Programmable Gate Array
- the device for selecting a focus area provided in the above embodiments of the present invention should be With the above apparatus for selecting a method of focusing a region, all of the embodiments of the above methods are applicable to the device, and both achieve the same or similar advantageous effects.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
- a target area is demarcated from the current picture according to the target position of the preset operation in the current picture, where the target area is an active molecular area in the current picture; and the current picture is determined according to the face information in the target area.
- the focus area is determined to focus on the focus area, so that the photographing effect of the active molecules in the scene is clearer, and the people who have different interests are brought to the camera to have fun and enhance the user experience.
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Abstract
本发明提供一种选择对焦区域的方法及装置、计算机可读存储介质,该方法包括:根据用户的操作获取当前画面;获取所述当前画面中执行一预设操作的目标位置;根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。本发明实施例根据当前画面中执行预设操作的目标位置从当前画面中划定一目标区域,该目标区域为当前画面中的活跃分子区域;再根据该目标区域中的人脸信息确定当前画面的对焦区域,以确定的该对焦区域进行对焦,使得场景里的活跃分子的拍照效果更加清晰,满足了不同兴趣的人群给拍照带来了乐趣,提升了用户体验。
Description
本发明涉及通信技术领域,尤其涉及一种选择对焦区域的方法及装置、计算机可读存储介质。
相机功能是智能终端如智能手机或平板电脑上非常重要的应用。如何取得较高质量的照片,是相机应用关注的重要问题。一般在单人或多人集体拍照中,对焦区域会选取人脸区域以保证面部对焦的准确性,最终使人体图像清晰些。但是在多人集体拍照时,总有活跃分子求“关注”,利用不同与他人的动作或声音(如挥手)使自己更突出;
然而,现有技术中的对焦技术无法满足这些活跃分子对于拍集体照的要求。
发明内容
本发明实施例的目的在于提供一种选择对焦区域的方法及装置、计算机可读存储介质,自动选择场景里的积极人物作为对焦区域,使得场景里的积极人物的拍照效果更加清晰,满足不同人群的拍照需求,给拍照带来乐趣。
为了达到上述目的,本发明实施例提供一种选择对焦区域的方法,包括:
根据用户的操作获取当前画面;
获取所述当前画面中执行一预设操作的目标位置;
根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目
标区域中的人脸信息;
根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
其中,所述预设操作为手势运动,相应地,所述获取所述当前画面中执行一预设操作的目标位置,具体为:
检测所述当前画面中手势运动的轨迹;
根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
其中,所述预设操作为发出声音,相应地,所述获取所述当前画面中执行一预设操作的目标位置,具体为:
获取所述当前画面中发出一预设声音的目标位置。
其中,所述根据所述目标位置从所述当前画面中划定一目标区域,具体为:
以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
其中,所述根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域,具体包括:
若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选择当前画面的对焦区域;
若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;
若所述目标区域中人脸的数目大于或者等于第三数值,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域。
其中,所述对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域,具体为:
选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画
面的对焦区域;或者
选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者
将所述目标区域内所有人脸区域均作为对焦区域。
本发明实施例还提供一种选择对焦区域的装置,包括:
画面获取模块,配置为根据用户的操作获取当前画面;
位置获取模块,配置为获取所述当前画面中执行一预设操作的目标位置;
区域检测模块,配置为根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;
选择模块,配置为根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
其中,所述预设操作为手势运动,相应地,所述位置获取模块包括:
轨迹检测模块,配置为检测所述当前画面中手势运动的轨迹
手势获取模块,配置为根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
其中,所述预设操作为发出声音,相应地,所述位置获取模块包括:
声音获取模块,配置为获取所述当前画面中发出一预设声音的目标位置。
其中,所述区域检测模块包括:
区域确定模块,配置为以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
其中,所述选择模块包括:
第一选择子模块,配置为若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选
择当前画面的对焦区域;
第二选择子模块,配置为若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;
第三选择子模块,配置为若所述目标区域中人脸的数目大于或者等于第三数值,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域。
其中,所述第三选择子模块包括:
第一单元,配置为选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画面的对焦区域;或者
第二单元,配置为选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者
第三单元,配置为将所述目标区域内所有人脸区域均作为对焦区域。
本发明实施例的上述技术方案至少具有如下有益效果:
本发明实施例的选择对焦区域的方法及装置、计算机可读存储介质中,根据当前画面中执行预设操作的目标位置从当前画面中划定一目标区域,该目标区域为当前画面中的活跃分子区域;再根据该目标区域中的人脸信息确定当前画面的对焦区域,以确定的该对焦区域进行对焦,使得场景里的活跃分子的拍照效果更加清晰,满足了不同兴趣的人群给拍照带来了乐趣,提升了用户体验。
图1表示本发明实施例的选择对焦区域的方法的基本步骤示意图;
图2表示本发明实施例的选择对焦区域的方法中目标区域的划定方法示意图;
图3表示本发明实施例中采用手势运动的方式选择对焦区域的实施例的具体步骤示意图;
图4表示本发明实施例中选择对焦区域的装置的组成结构图。
为使本发明要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
本发明实施例针对现有技术中的对焦技术无法满足一些活跃分子对于拍照的要求的问题,提供一种选择对焦区域的方法及装置,根据当前画面中执行预设操作的目标位置从当前画面中划定一目标区域,该目标区域为当前画面中的活跃分子区域;再根据该目标区域中的人脸信息确定当前画面的对焦区域,以确定的该对焦区域进行对焦,使得场景里的活跃分子的拍照效果更加清晰,满足了不同兴趣的人群给拍照带来了乐趣,提升了用户体验。
如图1所示,本发明实施例提供一种选择对焦区域的方法,包括:
步骤11,根据用户的操作获取当前画面;
步骤12,获取所述当前画面中执行一预设操作的目标位置;
步骤13,根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;
步骤14,根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
本发明实施例提供的选择对焦区域的方法一般适用于多人拍摄集体照时为满足活跃分子的需求的情况下,但也同时适用于一人拍照时,例如当前的拍照环境较昏暗,无法检测中当前环境下的人脸区域,此时可通过执行预设操作定位目标位置,继而定位目标区域,从而缩小了人脸检测技术的检测区域,再一次进行人脸检测,如果能够检测到人脸,则以该人脸区域为对焦区域进行对焦;如果仍然无法检测到人脸,则可以以该目标区域的中点或目标位置作为对焦区域进行对焦。需要说明的是,本发明实施例
是基于多种辅助技术实现的,比如人脸检测技术、手势体感检测技术、声音检测定位技术、肤色检测技术等等,在此不一一列举。
本发明的上述实施例中,当前画面可通过摄像头获取,具体的,该当前画面为一预览图像,当前画面仅用于框定第一拍摄的区域,在该当前画面中的人或物的位置可任意变动或增减。本发明具体实施例中的预设操作可以为手势运动、发出声音或其它运动方式。具体的,当所述预设操作为手势运动,相应地,步骤12具体为:
步骤121,检测所述当前画面中手势运动的轨迹;
步骤122,根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
具体的,本发明实施例中,预先定义一种检测手势运动的方法,先检测出手势运动的轨迹,再通过数学算法得出手势运动的中心位置,则该中心位置则为目标位置。
或者,当所述预设操作为发出声音,相应地,步骤12具体为:
步骤123,获取所述当前画面中发出一预设声音的目标位置。
具体的,本发明实施例中可采用雷达定位的方法确定发出一预设声音的目标位置;其中,采用预设声音是为了防止当前画面之外的声音干扰本发明实施例的位置定位,其具体方法在本发明实施例中不详细解释。
本发明的上述实施例中,步骤13具体为:
步骤131,以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
如图2所示,设目标位置的坐标为(x,y),具体的,以此坐标(x,y)为中心点划出一个矩形区域,如定义矩形区域的宽度w=1/5m,高度h=1/7m;则图2中的矩形区域即为本发明实施例的目标区域。需要说明的是,该目标区域不一定为矩形,还可以为其他任意形状,在此不一一列举。
本发明的上述实施例中,步骤14具体包括:
步骤141,若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选择当前画面的对焦区域;其中,所述第一数值可以为第一预设数值,例如所述第一数值为0;
步骤142,若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;其中,所述第二数值可以为第二预设数值,例如所述第二数值为1;
步骤143,若所述目标区域中人脸的数目大于或者等于第三数值,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域;其中,所述第三数值可以为第三预设数值,例如所述第三数值为2。
具体的,步骤143具体为:
步骤1431,选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画面的对焦区域;或者
步骤1432,选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者
步骤1433,将所述目标区域内所有人脸区域均作为对焦区域。
为了更清楚的描述本发明实施例的具体方案,下面结合图3采用手势运动做为预设操作,并基于手势体感检测技术实现本发明实施例,具体步骤如下:
步骤1,获取当前画面的图像数据:
步骤2,检测当前图像场景里的人脸,并做人脸信息记录,包括区域信息和人脸数目COUNT1;
步骤3,分析检测到的人脸信息;如果当前场景没有人脸信息,则选取中心区域做对焦区域;如果当前区域人脸数目COUNT1=1,则选用当前人脸区域做对焦区域。以上两种情况满足一个选取对焦区域后退出或转到步
骤1。如果检测到人脸数目大于1,转入步骤4;
步骤4,启动手势检测功能,检测当前场景中是否有手势运动,并将此相关信息记录;
步骤5,分析手势检测结果;如果没有检测手势运动,对检测到的人脸区域做统计分析选取合适的对焦区域,作为一种选择方式,可以选取最大人脸作为对焦区域。其选择方式有:选取左右人脸的中心区域或是中间大小的人脸等,也可以是多个区域同时对焦。以上选取对焦区域后退出流程或是转到步骤1;如果检测到手势运动,则检测手势运动附近的人脸并统计手势附近的人脸数目COUNT2;具体的,先检测出手势运动的中心点(x,y),依此中心点划出一个矩形区域,可以定义w=1/5Width,h=1/7Height,如图2所示。完成手势运动附近的人脸检测后转入到步骤6;
步骤6,分析手势附近的人脸信息,对于手势附近的人脸信息做进一步分析;如果人脸数目COUNT2等于0,对之前检测到的人脸数目COUNT1做统计分析选取合适的对焦区域,其选择方式,可以选取最大人脸作为对焦区域。其他选择方式有:选取左右人脸的中心区域或是中间大小的人脸等,也可以是多个区域同时对焦。以上选取对焦区域后退出流程或是转到步骤1;
如果人脸数目COUNT2等于1,则选取当前的人脸区域作为对焦区域,然后退出流程或是转到步骤1;
如果人脸数目COUNT2大于1,对检测到的COUNT2个人脸做统计分析选取合适的对焦区域,作为一种选择方式,可以选取最大人脸作为对焦区域。其他选择方式有:选取左右人脸的中心区域或是中间大小的人脸等,也可以是多个区域同时对焦。以上选取对焦区域后退出流程或是转到步骤1。
本发明实施例还提出一种计算机可读存储介质,该存储介质包括一组
指令,所述指令用于执行以上所述的选择对焦区域的方法。
为了更好的实现上述目的,如图4所示,本发明实施例还提供一种选择对焦区域的装置,包括:
画面获取模块41,配置为根据用户的操作获取当前画面;
位置获取模块42,配置为获取所述当前画面中执行一预设操作的目标位置;
区域检测模块43,配置为根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;
选择模块44,配置为根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
具体的,本发明上述实施例中,所述预设操作为手势运动,相应地,所述位置获取模块42包括:
轨迹检测模块,配置为检测所述当前画面中手势运动的轨迹
手势获取模块,配置为根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
具体的,本发明上述实施例中,所述预设操作为发出声音,相应地,所述位置获取模块42包括:
声音获取模块,配置为获取所述当前画面中发出一预设声音的目标位置。
具体的,本发明上述实施例中,所述区域检测模块43包括:
区域确定模块,配置为以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
具体的,本发明上述实施例中,所述选择模块44包括:
第一选择子模块,配置为若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选
择当前画面的对焦区域;其中,所述第一数值可以为第一预设数值,例如所述第一数值为0;
第二选择子模块,配置为若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;其中,所述第二数值可以为第二预设数值,例如所述第一数值为1;
第三选择子模块,配置为若所述目标区域中人脸的数目大于或者等于2,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域;其中,所述第三数值可以为第三预设数值,例如所述第三数值为0。
具体的,本发明上述实施例中,所述第三选择子模块包括:
第一单元,配置为选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画面的对焦区域;或者
第二单元,配置为选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者
第三单元,配置为将所述目标区域内所有人脸区域均作为对焦区域。
本发明实施例的选择对焦区域的方法中,根据当前画面中执行预设操作的目标位置从当前画面中划定一目标区域,该目标区域为当前画面中的活跃分子区域;再根据该目标区域中的人脸信息确定当前画面的对焦区域,以确定的该对焦区域进行对焦,使得场景里的活跃分子的拍照效果更加清晰,满足了不同兴趣的人群给拍照带来了乐趣,提升了用户体验。
在实际应用中,所述画面获取模块41、位置获取模块42、区域检测模块43以及选择模块44均可由选择对焦区域的装置中的中央处理单元(CPU,Central Processing Unit)、或数字信号处理(DSP,Digital Signal Processor)、或现场可编程门阵列(FPGA,Field Programmable Gate Array)等来实现;所述CPU、DSP、FPGA均可内置于选择对焦区域的装置中。
需要说明的是,本发明上述实施例中提供的选择对焦区域的装置的应
用上述选择对焦区域的方法的装置,则上述方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅是本发明实施例的实施方式,应当指出,对于本技术领域
的普通技术人员来说,在不脱离本发明实施例原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明实施例的保护范围。
本发明实施例根据当前画面中执行预设操作的目标位置从当前画面中划定一目标区域,该目标区域为当前画面中的活跃分子区域;再根据该目标区域中的人脸信息确定当前画面的对焦区域,以确定的该对焦区域进行对焦,使得场景里的活跃分子的拍照效果更加清晰,满足了不同兴趣的人群给拍照带来了乐趣,提升了用户体验。
Claims (13)
- 一种选择对焦区域的方法,包括:根据用户的操作获取当前画面;获取所述当前画面中执行一预设操作的目标位置;根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
- 根据权利要求1所述的选择对焦区域的方法,其中,所述预设操作为手势运动,相应地,所述获取所述当前画面中执行一预设操作的目标位置,具体为:检测所述当前画面中手势运动的轨迹;根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
- 根据权利要求1所述的选择对焦区域的方法,其中,所述预设操作为发出声音,相应地,所述获取所述当前画面中执行一预设操作的目标位置,具体为:获取所述当前画面中发出一预设声音的目标位置。
- 根据权利要求1所述的选择对焦区域的方法,其中,所述根据所述目标位置从所述当前画面中划定一目标区域,具体为:以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
- 根据权利要求1所述的选择对焦区域的方法,其中,所述根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域,具体包括:若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选择当前画面的对焦区域;若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;若所述目标区域中人脸的数目大于或者等于第三数值,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域。
- 根据权利要求5所述的选择对焦区域的方法,其中,所述对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域,具体为:选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画面的对焦区域;或者选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者将所述目标区域内所有人脸区域均作为对焦区域。
- 一种选择对焦区域的装置,包括:画面获取模块,配置为根据用户的操作获取当前画面;位置获取模块,配置为获取所述当前画面中执行一预设操作的目标位置;区域检测模块,配置为根据所述目标位置从所述当前画面中划定一目标区域,并获取所述目标区域中的人脸信息;选择模块,配置为根据所述目标区域中的人脸信息确定出所述当前画面的对焦区域。
- 根据权利要求7所述的选择对焦区域的装置,其中,所述预设操作为手势运动,相应地,所述位置获取模块包括:轨迹检测模块,配置为检测所述当前画面中手势运动的轨迹手势获取模块,配置为根据所述手势运动的轨迹,获取所述当前画面中手势运动的中心位置,确定所述中心位置为所述目标位置。
- 根据权利要求7所述的选择对焦区域的装置,其中,所述预设操作为发出声音,相应地,所述位置获取模块包括:声音获取模块,配置为获取所述当前画面中发出一预设声音的目标位置。
- 根据权利要求7所述的选择对焦区域的装置,其中,所述区域检测模块包括:区域确定模块,配置为以所述目标位置为中心点,按照预设划定规则从所述当前画面中划定一矩形区域作为所述目标区域。
- 根据权利要求7所述的选择对焦区域的装置,其中,所述选择模块包括:第一选择子模块,配置为若所述目标区域中人脸的数目为第一数值,检测所述当前画面中其他区域的人脸信息,并根据其他区域的人脸信息选择当前画面的对焦区域;第二选择子模块,配置为若所述目标区域中人脸的数目等于第二数值,选择所述目标区域的人脸区域作为所述当前画面的对焦区域;第三选择子模块,配置为若所述目标区域中人脸的数目大于或者等于第三数值,对所述目标区域中的所有人脸区域做统计分析,选取所述当前画面的对焦区域。
- 根据权利要求11所述的选择对焦区域的装置,其中,所述第三选择子模块包括:第一单元,配置为选取所述目标区域中所有人脸区域中最大的人脸区域作为所述当面画面的对焦区域;或者第二单元,配置为选取所述目标区域中所有人脸区域的中心区域作为所述当前画面的对焦区域;或者第三单元,配置为将所述目标区域内所有人脸区域均作为对焦区域。
- 一种计算机可读存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行权利要求1至6任一项所述的方法。
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