TWI599225B - A photographing method and photographing system through quick positioning by voice instructions - Google Patents

Description

Method for quickly positioning photograph by voice instruction and photographing system

The present invention relates to the technical field of photographing systems, and in particular, to a method and a photographing system for quickly positioning photographs by voice commands.

With the development of random technology, cameras or camera-enabled electronic products are becoming more and more popular. Using cameras or camera-enabled electronic products to take pictures of various life photos is also a experience that most people have. However, electronic products that have camera functions on the market currently need to manually adjust the optimal position for taking pictures, so that it takes a lot of time to adjust the optimal position for taking pictures.

For the above technical problem, the present application provides a method for quickly locating a photo by using a voice command, including the steps of:

S1: the robot acquires voice information, processes the voice information, and identifies the feature information, extracts the feature information, and executes S2;

S2: determining whether the feature information is self-timer information, if yes, executing S3, otherwise, executing S4;

S3: determining that the voice information is issued as a photographing subject, identifying the location of the photographing subject, executing S5;

S4: according to the feature information, rotating the camera by rotating the device to cause the camera to take a set of reference photos in a space of 360 degrees or 180 degrees or 90 degrees, identifying the position of the camera body, executing S5;

S5: Take a photo.

Preferably, the feature information includes self-timer information and/or color information and/or orientation information and/or decoration information.

Preferably, the step S5 includes the following steps:

S51: the rotating device rotates the camera such that the horizontal line and the vertical line of the photographing body in the photo are correct;

S52: placing the photographing body at one third of the screen;

S53: locating the position of the photographing body face in the camera screen, and performing auto focus;

S54: Receive a certain shooting instruction issued by the user to perform shooting.

Preferably, in the step S52, the photographing subject is placed at one third of the screen by using the face detection technology and the zoom function of the camera.

Preferably, in the step S53, the position of the photographing body face in the camera screen is located by using a face recognition technology.

Preferably, the step S4 includes the following steps:

S41: determining whether the feature information includes the orientation information, if S42 is not performed, otherwise executing S43;

S42: the rotating device rotates the camera, so that the camera captures a set of reference photos in a horizontal and vertical 360-degree space, and executes S44;

S43: the rotating device rotates the camera to take a set of reference photos in a space of 180 degrees or 90 degrees;

S44: Extract picture feature information of the reference photo, match the color information and/or the decoration information, and identify a location of the photo subject.

Preferably, the step S44 includes the following steps:

S441: determining whether the orientation information is the first orientation information, and if so, executing step S442, otherwise, performing step S443;

S442: The rotating device rotates the camera, and takes a set of reference photos in a 180-degree space corresponding to the orientation information, and executes S44;

S443: The rotating device rotates the camera to take a set of reference photos in a 90-degree space corresponding to the orientation information, and executes S44.

Preferably, the rotating device rotates the camera by a rotary function technique.

Preferably, in the step S3, the photographing body is located by using a sound localization technique.

The present invention also provides a photographing system for implementing the method for quickly locating a photograph by voice command. The photographing system includes the robot, the rotating device and the camera, and further includes:

a voice acquisition module, acquiring the voice information, processing the voice information, automatically identifying the feature information in the voice information, and extracting the feature information;

a feature judging module is connected to the voice acquiring module to determine whether the feature information is self-timer information;

a self-timer positioning module is connected to the feature determining module, and determines that the sound emitting position is the photographing body;

Rotating the module, connecting with the feature module, and transmitting the information that the camera rotates 360 degrees or 180 degrees or 90 degrees to the rotating device;

The photographing module is connected to the self-timer positioning module and the rotating module, and sends photographing information to the camera.

Preferably, the rotating module comprises:

The orientation processing unit determines whether the feature information includes the orientation information;

a first rotating unit that controls the rotating device to rotate the camera such that the camera captures a set of reference photos in a horizontal and vertical 360-degree space;

a second rotating unit that controls the rotating device to rotate the camera such that the camera captures a set of reference photos in a space of 180 degrees or 90 degrees;

The identification unit extracts picture feature information of the reference photo, matches the color information and/or the decoration information, and identifies the location of the photo subject.

Preferably, the second rotating unit comprises:

The orientation determining subunit determines whether the orientation information is first orientation information;

a first photographing subunit, rotating the camera to take a set of reference photographs in a 180 degree space corresponding to the orientation information;

The second photographing subunit rotates the camera to take a set of reference photographs in a 90 degree space corresponding to the orientation information.

Preferably, the shooting module comprises:

a body positioning subunit, controlling the rotating device to rotate the camera such that horizontal lines and vertical lines of the photographing body in the photo are correct;

a face detection sub-unit, using the face detection technology and the zoom function of the camera, placing the photographing subject at one third of the picture;

a face recognition sub-unit, using a face recognition technology to locate a position of the face in the camera screen, and automatically focusing the position of the face;

The main body photographing subunit receives a certain shooting instruction issued by the user, and controls the camera to take a photo.

In summary, the present patent application describes a method for quickly locating a photo by voice command and a photographing system, and the beneficial effects thereof are: the method for quickly locating a photograph by using a voice command, and the photographing system The voice subject can be quickly recognized by the voice command, and the optimal position of the photograph is adjusted; the rotating device with the rotating function technology is used to control the camera, so that the rotation of the camera is more flexible and convenient, and the efficiency of recognizing the photographing subject is improved; Technology, which can quickly locate the subject during self-timer; face detection and face recognition technology can help improve the quality of the shot.

The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings.

Embodiment 1

A method for quickly locating a photo by voice command is provided in the present application. Specifically, as shown in FIG. 1 , the method for quickly positioning a photograph includes the following steps: S1: The robot 1 acquires voice information, processes the voice information, automatically recognizes feature information in the voice information, and extracts the Feature information, executing S2; S2: determining whether the feature information is self-timer information, if yes, executing S3, otherwise, executing S4; S3: the robot 1 determines that the sound is emitted as a photographing subject, and executing S5; S4: robot 1 according to The feature information is rotated, and the camera 3 is rotated to cause the camera 3 to take a set of reference photographs in a space of 360 degrees and/or 180 degrees and/or 90 degrees, to recognize the position of the photographing subject, and execute S5; S5: take a photograph.

Wherein, in step S1, the robot 1 processes the acquired voice information by an automatic voice recognition technology and extracts the feature information, the feature information including at least self-timer information and/or color information and/or orientation information and/or decoration. information.

In step S3, the robot 1 uses the sound localization technique to locate the subject that issues the feature information of the self-timer information, and determines that the subject is the subject. That is, when the user issues a photographing instruction to the robot 1 to "take a photo for me", the robot 1 recognizes the self-portrait information of the feature information by the automatic speech recognition technology, and locates the subject that issues the feature information by the sound localization technique, and judges the subject. Take the subject and take a picture of the subject.

As shown in FIG. 2, in step S4, the robot 1 rotates the camera 3 according to the feature information so that the camera 3 captures a set of reference photographs in a space of 360 degrees and/or 180 degrees and/or 90 degrees, and recognizes the photographing subject. The position in which the robot 1 can rotate the camera 3 in a horizontal and vertical 360-degree space by manipulating a rotating device 2 having a rotating function technique. In the step S4, the method further includes the following steps: S41: determining whether the feature information includes orientation information, if S42 is not performed, otherwise executing S43; S42: rotating the camera 3, so that the camera 3 is in a horizontal and vertical 360-degree space Shooting a set of reference photos, executing S44; S43: rotating the camera 3, taking a set of reference photos in a space of 180 degrees or 90 degrees, executing S44; S44: extracting picture feature information of the reference photo, and the color information And/or decoration information is matched to identify the position of the subject.

In the step S41, the orientation information includes first orientation information and second orientation information, and the first orientation information includes: "left", "right", "upper", "lower", and the second The orientation information includes: "upper left", "lower left", "upper right", and "lower right". In step S44, if the reference photo is first classified by the object recognition image technology, and the picture feature information of each object in the reference photo is extracted, then the picture feature information and the color information and/or the decoration information are When the comparison is performed, when the same picture feature information as the color information and/or the decoration information appears, it is determined that the picture with the picture feature information is the photo of the photo subject, thereby determining the location of the photo subject. The color information includes color information such as “red”, “orange”, “yellow”, “green”, “green”, and the like, and the decorative information includes information such as “glasses”, “hats”, “necklaces” and the like.

As shown in FIG. 3, in step S5, after determining the location of the photographing subject, the photographing subject is photographed. Specifically, the method includes the following steps: S51: rotating the camera 3 by using the rotating device 2 to make the horizontal line and the vertical line of the photographing body in the photo correct; S52: using the face detecting technology and the zooming function of the camera 3, placing the photographing subject in the screen three One point; S53: Using the face recognition technology to locate the position of the face in the camera 3, and automatically focus on the position of the face; S54: Receive the determined shooting instruction issued by the user to perform shooting.

In step S52, the main body is placed at one third of the picture, or may be at a position of about one third of the picture, that is, the placement position of the main body is not limited to the picture. One third of the position can also be in other proportions. In step S54, the camera 3 receives the determined shooting instruction issued by the user and performs photographing. The determined shooting instruction here may be a voice command, or may be a determined shooting instruction issued by the user through the shooting button on the camera 3. When the determining the shooting instruction is a voice command, the robot 1 receives the voice command and analyzes the command, and when it is determined that the command is a correct determined shooting command, the shooting information is sent to the camera 3, and the camera 3 receives the shooting. Information and shoot.

As shown in FIG. 4, in step S43, the robot 1 rotates the camera 3 to capture a set of reference photos in a space of 180 degrees or 90 degrees, and specifically includes the following steps: S431: determining whether the orientation information is first orientation information, If yes, go to step S442, otherwise, go to step S443; S432: rotate the camera 3, correspondingly take a set of reference photos in the 180 degree space on the left or right or above or below the feature information issuing position, and execute S44; S433: Rotating the camera 3, correspondingly taking a set of reference photographs in the 90-degree space at the upper left or lower left or upper right or lower right of the feature information issuing position, and executing S44.

In operation, after the user issues a photographing instruction to the robot 1, the instruction is voice information, and the robot 1 receives the voice information and performs processing to extract feature information included in the voice information. When the feature information is self-timer information, the camera 3 is rotated by the rotating device 2, so that the camera 3 captures a set of reference photos in a 360-degree space, and identifies the position of the photographing subject; when the feature information is "left", One of "right", "upper", "lower", correspondingly taking a set of reference photos in the 180 degree space to the left or right or above or below the feature information issuance position; when the feature information is "upper left" One of "lower left", "upper right", and "lower right", the rotating device 2 rotates the camera 3, correspondingly in a 90 degree space in the upper left or lower left or upper right or lower right of the feature information issuing position. Take a set of reference photos. In the latter two cases, the picture feature information of the reference photo is extracted, matched with the color information and/or the decoration information, and the position of the photographing subject is recognized.

After recognizing the photographing subject, the rotating device 2 rotates the camera 3 so that the horizontal and vertical lines of the photographing subject in the photograph are correct, and the photographing subject is placed in the position using the face detection technology and the zoom function of the camera 3. One third of the picture;

Then, using the face recognition technology, the position of the face in the camera 3 screen is located, and the position of the face is automatically focused; preferably, the robot 1 receives the determined shooting instruction issued by the user and performs shooting.

FIG. 5 shows a schematic structural view 1 of a photographing system according to an embodiment of the present invention. The photographing system shown in FIG. 5 is configured to perform the method for quickly positioning photographs by using a voice instruction as shown in FIG. 1. As shown in FIG. 5, the photographing system includes a robot 1, a rotating device 2 and a camera 3, wherein the robot 1 includes a voice acquiring module 11, acquires voice information, and processes the voice information automatically. Identifying feature information in the voice information and extracting the feature information.

The robot 1 further includes a feature determining module 12 for determining whether the feature information is self-timer information. The feature determination module 12 is also connected to the self-timer positioning module 13 for determining the sound emission position as the camera body by using the sound localization technology. Furthermore, the robot 1 further comprises a rotary module 14 that sends information to the rotating device 2 that the camera 3 is rotated 360 degrees and/or 180 degrees and/or 90 degrees. The rotation module 14 is connected to the imaging module 15 , and the imaging module 15 issues photo information to the camera 3 .

As shown in FIG. 6, the rotating module 14 includes:

The orientation processing unit 141 determines whether the feature information includes orientation information.

a first rotating unit 142 is connected to the orientation processing unit 141, and controls the rotating device 2 to rotate the camera 3, so that the camera 3 captures a set of reference photos in a horizontal and vertical 360-degree space;

a second rotating unit 143, and the orientation processing unit 141, controlling the rotating device 2 to rotate the camera 3, so that the camera 3 captures a set of reference photos in a space of 180 degrees or 90 degrees;

The identification unit 144 is respectively connected to the first rotation unit 142 and the second rotation unit 143, extracts picture feature information of the reference photo, matches with the color information and/or decoration information, and identifies the position of the shooting subject .

As shown in FIG. 7, the second rotating unit 143 includes:

The orientation determining sub-unit 1431 is connected to the orientation processing unit 141, and determines whether the orientation information is first orientation information;

The first photographing sub-unit 1432 is connected to the orientation determining sub-unit 1431 and the recognizing unit 144, rotates the camera 3, and photographs a corresponding 180-degree space on the left or right or above or below the feature information emitting position. Group reference photo;

The second photographing sub-unit 1433 is connected to the orientation determining sub-unit 1431 and the recognizing unit 144, rotates the camera 3, and photographs a corresponding space in a 90-degree space on the left or right or above or below the feature information issuing position. Group reference photo.

As shown in FIG. 8, the shooting module 15 includes:

a body positioning subunit, controlling the rotating device 2 to rotate the camera 3 such that the horizontal and vertical lines of the photographing subject in the photo are correct;

a face detection subunit, using the face detection technology and the zoom function of the camera 3, placing the photographing subject at one third of the screen;

The face recognition sub-unit, using the face recognition technology, locates the position of the face in the camera 3, and automatically focuses the position of the face;

The main body photographing subunit receives a determined shooting instruction issued by the user, and controls the camera 3 to take a photo.

Through the quick positioning and photographing method by the voice instruction and the photographing system, the photographing body can be quickly recognized by the voice instruction, and the optimal position of the photographing is adjusted.

Embodiment 2

According to the method for quickly locating a photograph by voice instruction provided by the above embodiment, the method improves the method.

As shown in FIG. 9 , in the embodiment, the user issues a “take me a photo” photographing instruction, and the robot 1 receives the instruction and performs processing, and after extracting the feature, it is found that the feature information includes self-timer information, and the photographing subject is determined. Position and shoot. The specific steps include: S01: the robot 1 acquires voice information, processes the voice information, and identifies the feature information, and extracts the feature information self-timer information; S02: determines that the sound is emitted as a photographing subject; S03: the rotating device 2 rotates The camera 3 makes the horizontal line and the vertical line of the photographing body in the photo correct; S04: placing the photographing body at one third of the screen; S05: locating the position of the human face in the camera 3 screen, Autofocus on the position of the face; S06: Receive the determined shooting command from the user to shoot.

Since the feature information self-timer information is determined in step S01, the position where the sound is emitted is determined by the sound localization technique. In this embodiment, the user only needs to issue a photographing instruction similar to "take a photo for me", and the robot 1 can automatically extract the feature information self-timer information to complete the self-timer function. This method is simple in operation, and utilizes the sound localization technology and the rotating device 2 to solve the problem that the user needs to automatically align the camera 3 during the self-photographing process.

Embodiment 3

According to the method for quickly locating a photograph by voice instruction provided by the above embodiment, the embodiment further improves the method.

As shown in FIG. 10, in the embodiment, the user issues a "take a photo to a girl wearing red clothes", the robot 1 receives the instruction and performs processing, and extracts the feature and finds that the feature information includes color information "red" The robot 1 rotates the rotating device 2 to take a set of reference photographs in a horizontal and vertical 360-degree space, determines a photographing subject from the reference photographs, and performs photographing. The specific steps include: S11: the robot 1 acquires voice information, processes the voice information and identifies the feature information, and extracts the color information “red”; S12: the rotating device 2 rotates the camera 3 to make the camera 3 capturing a set of reference photos in a horizontal and vertical 360-degree space; S13: extracting picture feature information of the reference photo, matching the color information, and identifying a position of the photographing body; S14: rotating the rotating device 2 The camera 3 makes the horizontal line and the vertical line of the photographing subject in the photo correct; S15: placing the photographing subject at one third of the screen; S16: locating the position of the human face in the camera 3 screen, Autofocus on the position of the face; S17: Receive the determined shooting command from the user to shoot.

Since the color information "red" is extracted in step S11, but the orientation information is not found, it is necessary to take a set of reference photos in a horizontal and vertical 360-degree space, and perform feature extraction on the set of photos, and The extracted features are compared with the color information extracted in S11, and if the same color information appears, the position of the photographing subject can be determined. In this operation mode, when the user's command only contains color information, the robot 1 can also quickly determine the position of the photographing subject and accurately realize the photographing function.

Embodiment 4

According to the method for quickly locating a photograph by voice instruction provided by the above embodiment, the embodiment further improves the method.

As shown in FIG. 11, in the embodiment, the user issues a "take a photo to a girl wearing a red dress on the left side", and the robot 1 receives the instruction and performs processing, and extracts the feature and finds that the feature information includes the first The orientation information "left" and the color information "red", the robot 1 rotates the rotating device 2, takes a set of reference photographs in the left 180-degree space, and determines the photographing subject from the reference photographs by the color information "red" And take a shot. The specific steps include: S21: the robot 1 acquires voice information, processes the voice information, and identifies the feature information, and extracts the orientation information “left” and color information “red”; S22: the rotating device 2 rotates the camera 3, the camera 3 is caused to take a set of reference photos in a 180 degree space on the left side; S23: extracting picture feature information of the reference photo, matching the color information "red", and identifying the position of the photographing subject; S24 : the rotating device 2 rotates the camera 3 such that the horizontal and vertical lines of the photographing subject in the photo are correct; S25: placing the photographing subject at one third of the screen; S26: positioning the human face in the The position in the camera 3 screen automatically focuses on the position of the face; S27: Receive the determined shooting command from the user to shoot.

Since in step 21, the orientation information "left" and the color information "red" are extracted, then only one set of reference photos needs to be taken in the left 180-degree space, feature extraction is performed on the set of photos, and the extracted features are extracted. The one-to-one comparison with the color information extracted in S11, if the same color information appears, then the position of the photographing subject can be determined. This operation mode does not need to take a reference photo in a 360-degree space, and only needs to take a reference photo in a 180-degree space corresponding to the orientation information, which reduces the time for determining the subject of the photograph and improves the accuracy.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments and the scope of the present invention. Those skilled in the art should be able to Combinations of equivalent substitutions and obvious variations are intended to be included within the scope of the invention.

1‧‧‧Robot
11‧‧‧Voice Acquisition Module
12‧‧‧Character judgment module
13‧‧‧Self-timer positioning module
14‧‧‧Rotary Module
141‧‧‧Azimuth processing unit
142‧‧‧First rotating unit
143‧‧‧Second rotating unit
1431‧‧‧Azimuth determination subunit
1432‧‧‧First photo subunit
1433‧‧‧Second photo subunit
144‧‧‧identification unit
15‧‧‧ Shooting module
2‧‧‧Rotating equipment
3‧‧‧ camera
S1-S5‧‧‧ steps
S41-S44‧‧‧Steps
S51-S54‧‧‧Steps
S431-S433‧‧‧Steps
S01-S06‧‧‧Steps
S11-S17‧‧‧Steps
S21-S27‧‧‧Steps

1 is a flow chart 1 of a method for quickly locating a photo by voice command according to the present invention; FIG. 2 is a flow chart 2 of a method for quickly locating a photo by voice command according to the present invention; FIG. 3 is a quick positioning of a photo by voice command according to the present invention; FIG. 4 is a flow chart 4 of a method for quickly locating a photograph by voice instruction; FIG. 5 is a schematic structural view of a photographing system of the present invention; FIG. 6 is a schematic structural diagram of a photographing system of the present invention; Figure 7 is a schematic structural view of a photographing system of the present invention; Figure 8 is a schematic structural view of a photographing system of the present invention; Figure 9 is a flow chart of the method of the second embodiment of the present invention; and Figure 10 is an embodiment of the present invention. Method flow chart of three; Figure 11 is a flow chart of the method of the fourth embodiment of the present invention.

S1-S3‧‧‧ steps

S41-S42, S44‧‧‧ steps

S51-S54‧‧‧Steps

S431-S433‧‧‧Steps

Claims (13)

A method for quickly positioning a photograph by using a voice instruction, comprising the steps of: S1: the robot acquires voice information, processes the voice information and identifies the feature information, extracts the feature information, and executes S2; S2: determines whether the feature information is Self-timer information, if yes, execute S3; otherwise, execute S4; S3: determine that the voice information is issued as a photographing subject, and identify the position of the photographing subject, perform S5; S4: according to the feature information, by rotating the device Rotating the camera causes the camera to take a set of reference photographs in a space of 360 degrees or 180 degrees or 90 degrees, identifying the position of the photographing subject, and executing S5; S5: taking a photograph of the photographing subject. The method for quickly locating a photograph by voice instruction according to claim 1 of the patent application, wherein the feature information comprises self-photographing information and/or color information and/or orientation information and/or decoration information. According to the method of claim 1, the step S5 includes: rotating the camera such that the horizontal and vertical lines of the photographing subject in the photo are correct; S52: The photographing main body is placed at one third of the screen; S53: positioning the photographing main body face in the camera screen, and performing auto focusing; S54: receiving a determined shooting instruction issued by the user, and performing shooting . According to the method for quickly locating a photograph by voice instruction according to item 3 of the patent application scope, in step S52, the photographing subject is placed at one third of the screen by using a face detection technology and a zoom function of the camera. . According to the method for quickly locating a photograph by voice instruction according to item 4 of the patent application scope, in step S53, the position of the photographing subject face in the camera screen is located by using a face recognition technology. According to the method of claim 1, the step S4 includes: determining whether the feature information includes the orientation information, and if not executing S42, otherwise executing S43; The device rotates the camera such that the camera captures a set of reference photos in a horizontal and vertical 360-degree space, and executes S44; S43: the rotating device rotates the camera to shoot a group in a 180-degree or 90-degree space Refer to the photo; S44: extract picture feature information of the reference photo, match the color information and/or the decoration information, and identify the location of the photo subject. According to the sixth aspect of the patent application, the method for quickly locating a photograph by voice instruction, the step S44 includes the following steps: S441: determining whether the orientation information is the first orientation information, and if yes, executing S442; otherwise, performing step S443; S442 : rotating the camera to shoot a set of reference photos in a 180-degree space corresponding to the orientation information, and executing S44; S443: the rotating device rotates the camera, corresponding to the orientation information Take a set of reference photos in 90 degree space and execute S44. According to the method of quickly locating a photograph by voice command according to item 7 of the patent application scope, the rotating device rotates the camera by a rotary function technique. According to the method for quickly locating a photograph by voice instruction according to the first aspect of the patent application, in step S3, the photographing subject is located by using a sound localization technique. A photographing system for performing the method of claim 1, the photographing system comprising the robot, the rotating device and the camera, further comprising: a voice acquiring module, acquiring the voice information, and the voice Processing the information, automatically identifying the feature information in the voice information, and extracting the feature information; the feature determination module is connected to the voice acquisition module to determine whether the feature information is self-timer information; self-timer positioning a module, connected to the feature determining module, determining that the sound emitting position is the photographing body; and rotating the module, connecting with the feature module, and emitting the camera to the rotating device by 360 degrees or 180 degrees or 90 degrees of information; a shooting module, connected to the self-timer positioning module and the rotating module, to send photo information to the camera. The photographing system of claim 10, wherein the rotating module comprises: an orientation processing unit that determines whether the feature information includes the orientation information; and a first rotation unit that controls the rotation device to rotate the camera Having the camera capture a set of reference photographs in a horizontal and vertical 360-degree space; a second rotating unit that controls the rotating device to rotate the camera such that the camera captures a set in a 180 or 90 degree space a reference photo; an identification unit that extracts picture feature information of the reference photo, matches the color information and/or decoration information, and identifies a location of the photo subject. The photographing system of claim 11, wherein the second rotating unit comprises: an orientation determining subunit, determining whether the orientation information is first orientation information; a first photographing subunit rotating the camera to capture a set of reference photographs in a 180 degree space corresponding to the orientation information; a second photographing subunit rotating the camera to take a shot in a 90 degree space corresponding to the orientation information Group reference photo. The photographing system of claim 10, wherein the photographing module comprises: a main body positioning subunit, and the rotating device is controlled to rotate the camera such that the horizontal and vertical lines of the photographing subject in the photograph are correct; a face detection subunit, using a face detection technology and a zoom function of the camera, placing the photographing subject at a third of the screen; the face recognition subunit, using the face recognition technology, to locate the face At a position in the camera screen, autofocusing is performed on the location of the face; the main body photographing subunit receives a determined shooting instruction issued by the user, and controls the camera to take a photo.