WO2014071840A1

WO2014071840A1 - Method and device for taking photo and video

Info

Publication number: WO2014071840A1
Application number: PCT/CN2013/086621
Authority: WO
Inventors: 徐兵; 朱丹; 崔宏图
Original assignee: 小米科技有限责任公司
Priority date: 2012-11-12
Filing date: 2013-11-06
Publication date: 2014-05-15
Also published as: CN102938825A; CN102938825B

Abstract

Provided are a method and device for taking a photo and a video. The method for taking a photo comprises: receiving a photographing instruction triggered according to a first triggering mode; instructing a plurality of camera-shooting devices of a mobile terminal to photograph simultaneously according to the photographing instruction; and acquiring a plurality of images photographed by the plurality of camera-shooting devices respectively. Since in the present disclosure, a plurality of camera-shooting devices of a mobile terminal can be instructed to photograph simultaneously according to a received photographing instruction, the images in the photographing direction of each camera-shooting device at the same moment can be obtained, thus the bidirectional or even multidirectional photographing demand of a user is satisfied.

Description

Method and device for taking photos and videos

Technical field

The present disclosure relates to the field of image processing technologies, and more particularly, to a method and apparatus for taking photos and videos. Background technique

At present, with the rapid development of intelligent terminals, the processing capabilities of intelligent terminals are becoming stronger and stronger, the camera has become the basic configuration of intelligent terminals, and, as people's requirements are higher and higher, the performance of camera devices equipped with intelligent terminals It is also constantly improving. For example, the pixels of the camera of the smart terminal are changed from the original 300,000 pixels to the current 5 million pixels, and the higher 8 million pixels. The number of cameras has also changed from the original one to the current mainstream terminal. There are two in the front and back of the configuration, and also added auto focus, flash and other functions. Greatly meet the needs of people.

At present, a smart terminal with two cameras is selected by the user to select whether to use a front camera or a rear camera. That is to say, using a camera in one direction at a time, only one direction of the scene can be taken. This kind of shooting technology that can only use one camera at the same time cannot meet people's needs. Summary of the invention

In view of this, it is an object of embodiments of the present disclosure to provide a method and apparatus for taking photographs and videos that are capable of satisfying the needs of a user for multi-angle shooting.

In order to achieve the above objective, in one aspect, an embodiment of the present disclosure provides a method for taking a photo, including the following steps: receiving a shooting instruction triggered according to a first triggering manner;

Instructing a plurality of imaging devices of the mobile terminal to simultaneously perform shooting according to the shooting instruction;

Acquiring the plurality of image capturing apparatuses to respectively capture the obtained plurality of images.

In the embodiment of the present disclosure, since a plurality of imaging devices of the mobile terminal can be instructed to simultaneously perform imaging according to the received imaging instruction, an image of the imaging direction of each imaging device at the same time can be obtained, which satisfies the two-way or even multi-directional imaging requirements of the user.

Preferably, the method further includes:

The plurality of images are combined into one image according to preset parameters.

The program also adds the step of synthesizing multiple images into one image, further providing convenience for the user. Users can use multiple camera units to take pictures in different directions and create a group photo.

Preferably, the preset parameter includes one or more of the following:

An image of the background removed according to a selection instruction or preset information;

a transformation parameter of the plurality of images obtained according to a relative position of the plurality of imaging devices and/or according to the acquired distances between the plurality of imaging devices and respective imaging objects; wherein the transformation comprises one of Kind or more: Rotate, Flip, and Zoom. Preferably, the method further includes: when the preset parameter includes a transformation parameter of the plurality of images obtained according to the obtained distance between the plurality of imaging devices and the respective photographic subject, the method further comprising:

The distance between the plurality of imaging devices and the respective photographic subjectes is obtained before the plurality of imaging devices of the mobile terminal are instructed to simultaneously perform shooting according to the shooting instruction.

As a preferred aspect of the above technical solution, the manner of obtaining the distance between the plurality of imaging devices and the respective photographic subjectes includes ultrasonic ranging or infrared ranging.

Preferably, before receiving the shooting instruction triggered according to the first triggering manner, the method further includes the following steps:

Receiving a preparation shooting instruction triggered according to the second trigger mode;

Determining, according to the preparation for photographing instruction, a plurality of camera devices of the mobile terminal to open and obtain a preview image; acquiring the preview image;

Combining the preview image into an image according to the preset parameter;

The synthesized image is sent to the display of the mobile terminal.

This scenario provides a preview step that allows the user to make adjustments based on the preview.

On the other hand, an embodiment of the present disclosure further provides an apparatus for taking a photo, including:

a first receiving module, configured to receive a shooting instruction triggered according to the first triggering manner;

The first indication module is configured to instruct the plurality of imaging devices of the mobile terminal to perform the shooting simultaneously according to the shooting instruction; the first acquiring module acquires the plurality of images obtained by the plurality of imaging devices respectively.

Preferably, the device further includes:

And a synthesizing module, configured to synthesize the plurality of images acquired by the acquiring module into one image according to a preset parameter. Preferably, the preset parameter includes one or more of the following:

Determining an image that needs to be removed according to user selection or pre-setting;

And a transformation parameter of the plurality of images obtained according to a relative position of the plurality of imaging devices, and/or according to a distance between the acquired plurality of imaging devices and respective photographic objects; wherein the transformation includes the following One or more: Rotate, Flip, and Scale.

Preferably, the synthesizing module is further configured to: obtain, when the preset parameter includes a transformation parameter of the plurality of images obtained according to the obtained distance between the plurality of imaging devices and respective photographic objects, obtain The distance between the plurality of imaging devices and the respective subject.

Preferably, in the above technical solution, the manner in which the synthesizing module obtains the distance between the plurality of imaging devices and the respective photographic subjectes includes ultrasonic ranging or infrared ranging.

Preferably, the apparatus further includes a preview module, configured to: before receiving the shooting instruction triggered according to the first trigger mode:

Determining, according to the preparation for photographing instruction, a plurality of camera devices of the mobile terminal to open and obtain a preview image; acquiring the preview image; Combining the preview image into an image according to the preset parameter;

The synthesized image is sent to the display of the mobile terminal.

In a third aspect, an embodiment of the present disclosure further provides a method for capturing a video, including the following steps:

Receiving a shooting instruction triggered according to the second trigger mode;

Acquiring the plurality of cameras to capture the obtained plurality of videos.

The method for capturing a video proposed by the embodiment of the present disclosure can be used to simultaneously capture a plurality of imaging devices of the mobile terminal according to the received shooting instruction, thereby obtaining a video of the shooting direction of each camera device at the same time, which satisfies the user's two-way even Multi-directional shooting needs.

In a fourth aspect, an embodiment of the present disclosure further provides an apparatus for capturing a video, including:

a second receiving module, configured to receive a shooting instruction triggered according to the third triggering manner;

The second indication module is configured to instruct the plurality of imaging devices of the mobile terminal to perform the shooting simultaneously according to the shooting instruction; and the second acquiring module acquires the plurality of videos obtained by the plurality of imaging devices respectively.

Other features and advantages of the embodiments of the present disclosure will be set forth in the description which follows. The objectives and other advantages of the present disclosure can be realized and obtained by the structure particularly pointed out in the written description and claims.

The technical solutions of the embodiments of the present disclosure are further described in detail below through the accompanying drawings and embodiments. DRAWINGS

The drawings are intended to provide a further understanding of the embodiments of the invention, and are in the In the drawing:

1 is a flow chart of a method of taking a photo according to a preferred embodiment of the present disclosure;

2 is a flow chart of a method for taking a photo according to an embodiment of the present disclosure;

3 is a flow chart of a method for taking a photo according to another embodiment of the present disclosure;

4 is a flow chart of a method for taking a photo according to still another embodiment of the present disclosure;

5 is a flowchart of a method of capturing a video proposed by a preferred embodiment of the present disclosure;

6 is a schematic structural diagram of an apparatus for taking a photograph according to a preferred embodiment of the present disclosure;

7 is a schematic structural diagram of an apparatus for taking a photo according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of an apparatus for capturing video according to a preferred embodiment of the present disclosure. detailed description

The preferred embodiments of the present disclosure are described in the following with reference to the accompanying drawings, and the preferred embodiments of the present invention are intended to illustrate and explain the embodiments of the present disclosure.

A method for taking a photo according to an embodiment of the present disclosure may be implemented in an application for taking a photo of a terminal, or implemented as a separate application in a terminal. As shown in FIG. 1 , a method for taking a photo according to a preferred embodiment of the present disclosure includes:

Step S11: receiving a shooting instruction triggered according to the first triggering manner;

Step S12: Instructing a plurality of imaging devices of the mobile terminal to perform shooting simultaneously according to the shooting instruction; Step S13: acquiring the plurality of images obtained by the plurality of imaging devices respectively.

The mobile terminal in the embodiment of the present disclosure refers to a mobile terminal such as a mobile phone, a tablet computer, or a camera having at least two cameras.

In this embodiment, since a plurality of imaging devices of the mobile terminal can be instructed to simultaneously perform imaging according to the received imaging command, images of the imaging directions of the respective imaging devices at the same time can be obtained, satisfying the two-way or even multi-directional shooting requirements of the user.

The method for taking a photo proposed by the embodiment of the present disclosure will be described in detail below through other specific embodiments. Embodiment 1:

As shown in FIG. 2, this embodiment is exemplified by a mobile phone equipped with a front camera and a rear camera. The method for taking a photo according to the specific embodiment includes the following steps:

Step S21: Receive a shooting instruction triggered according to the first trigger mode.

The first triggering manner includes, but is not limited to, a preset mechanical button being pressed, a preset one of the buttons being triggered, a preset gesture operation in the preset area of the touch screen of the mobile phone, or a preset voice command.

Step S22: According to the shooting instruction, the front camera and the rear camera of the mobile phone are simultaneously photographed.

Step S23: Obtain images obtained by the front camera and the rear camera respectively from the memory.

Step S24: Combine the acquired images into one image.

In this embodiment, the images obtained by simultaneously capturing the front and rear cameras are further combined into one image, which facilitates the user to view the images captured by the respective cameras in the same image.

In the process of synthesizing the acquired image into one image in step S24, optimization processing can be performed to make the synthesized image have higher quality.

Embodiment 2:

As shown in FIG. 3, taking a photo taken by using a mobile phone having a front camera and a rear camera, in this embodiment, the images taken by the front camera and the rear camera are combined, and during the synthesis process, optimization. The method for taking a photo proposed by this embodiment includes the following steps:

Step S31: Receive a shooting instruction triggered according to the first trigger mode.

The trigger mode includes but is not limited to: a preset mechanical button is pressed, a preset button is triggered, or a gesture operation is performed on the touch screen preset area of the mobile phone.

Step S32: According to the shooting instruction, the front camera and the rear camera of the mobile phone are simultaneously photographed.

Step S33: Obtain images obtained by the front camera and the rear camera respectively from the memory.

Step S34: Determine an image of the plurality of acquired images that needs to be removed from the background.

In this embodiment, since the positions and directions of the respective cameras are different, the background of each image is not the same, and may even be completely different. Since the images taken by the respective cameras are combined into one image, in order to avoid clutter in the background, Therefore, the background of one image can be used, and the background of other images can be removed and synthesized into an image with a background. Of course, the background of all images can also be removed.

In this step, it may be determined according to the user's selection which images need to retain the background, which images need to be removed from the background, or according to the user's selection, which of the plurality of cameras is required to retain the background in the image captured by the camera, while the images taken by other cameras are retained. The background needs to be removed, and it is also possible to pre-set which of the plurality of cameras the background in the image taken needs to be retained, and the background of the image taken by the other cameras needs to be removed.

Step S35: Remove the background in the image that needs to be removed from the background.

Step S36: The image is scaled according to the distance between the front camera and the rear camera and the respective subject. In this step, to ensure that the size of the subject of each image can be matched, but since the distance between the camera and the subject may be different, the size of the subject in the captured image may be inconsistent, for example, when the user When the mobile phone with the front camera and the rear camera simultaneously shoots the user and the subject at the same time, since the user is close to the front camera and the subject may be far away from the rear camera, the image taken by the front camera is in the image. The user has a larger proportion in the photo, and the proportion of the subject in the image taken by the rear camera is smaller. If you directly combine the two into one image, the user's own proportion in the image is larger than the ratio of the captured image, which is very uncoordinated.

Therefore, it is necessary to scale the image according to the distance between the imaging device and the respective subject, so that the ratio of the subject in the image is uniform. Specifically, the distance between the imaging device and the subject can be obtained by ultrasonic ranging or infrared ranging, and the size of the image is adjusted according to the obtained distance between the imaging device and the subject.

Further, in this step, it is possible to determine which image is to be scaled based on which image is based on the user's selection or a predetermined setting. It is also possible to scale all the images according to a preset ratio so that the ratio of the subjects in all the images conforms to a preset ratio.

Step S37: Perform an inversion process on the image to be processed according to the relative positions of the front camera and the rear camera.

For the relative positions of the front camera and the rear camera in this embodiment, one of the images can be horizontally flipped.

Step S38: Combine the processed images into one image.

In this step, the synthesis is to superimpose the processed image. In other embodiments, it is also possible to directly splicing the captured image into one image.

Embodiment 3:

As shown in FIG. 4, taking a photo taken by using a mobile phone having a front camera and a rear camera, in this embodiment, images taken by the front camera and the rear camera are combined, and a preview is provided before shooting. . The method of taking a photo proposed by this embodiment includes the following steps:

Step S41: Receive a preparation shooting instruction triggered according to the second trigger mode.

The second triggering method includes, but is not limited to, a preset mechanical button being pressed, a preset button being triggered, a preset gesture operation or a preset voice command in the preset area of the touch screen of the mobile phone. Step S42: Instruct the front camera and the rear camera to be turned on according to the preparation shooting instruction and obtain a preview image. In this step, the camera only starts framing and does not shoot.

Step S43: Acquire the preview image, and combine the preview image into an image according to a preset parameter, and send the synthesized image to the display of the terminal for display.

In this step, the obtained preview image is synthesized into an image according to preset parameters, and the synthesized image is sent to the display of the terminal for preview by the user. At this time, the user can adjust according to the preview, for example, adjusting the shooting object. The position and/or distance of the terminal, and the position and/or distance of the terminal (ie, the camera) are adjusted so that the synthesized preview image displayed on the display reaches the user's request. For example, when the current camera and the rear camera are both subjects, in order to ensure that the captured photo avatars do not conflict, the key parts of the characters in the synthesized image do not conflict, such as no head overlap, arm overlap, etc. In this case, the user is required to adjust the optimal position according to the displayed image synthesized based on the preview image before shooting, and then perform shooting.

The step of synthesizing the preview image into an image according to the preset parameters may be consistent with the step of synthesizing the image in the second embodiment, and may include the following steps:

Determining an image that needs to retain a background among a plurality of acquired images according to a preset or a user's selection;

Removing the background of the image of the acquired image that does not need to retain the background;

The image is subjected to scaling processing or focusing of the imaging device according to the distance between the imaging device and the respective subject, so that the proportion of the subject in the previewed composite image meets the requirements.

Performing an inversion process on the image to be processed according to the relative positions of the plurality of imaging devices;

The processed image is combined into one image.

In addition, processing the image may further include processing the image according to a user selected image processing option, which may include, for example, various filters, various transforms (including but not limited to: zoom, rotate, bevel , distortion and perspective, etc.).

Step S44: The setting or adjustment of the preset parameter by the user is saved.

Step S45: Receive a shooting instruction triggered according to the first trigger mode.

The user adjusts and sets the parameters according to the previewed composite image, and determines that the shooting command is issued after shooting.

Step S46: According to the shooting instruction, the front camera and the rear camera of the mobile phone are simultaneously photographed.

Step S47: Acquire the images obtained by the front camera and the rear camera respectively.

Step S48: Combine the acquired images into one image according to the user setting or the adjusted preset parameters.

As shown in FIG. 5, the embodiment of the present disclosure further provides a method for capturing video, including the following steps:

Step S51: receiving a shooting instruction triggered according to the third triggering manner;

Step S52: Instruct the plurality of image capturing apparatuses of the mobile terminal to perform shooting simultaneously according to the shooting instruction; Step S53: Acquire the plurality of images obtained by the plurality of image capturing apparatuses respectively.

The method for capturing a video proposed by the embodiment of the present disclosure can be used to simultaneously capture a plurality of imaging devices of the mobile terminal according to the received shooting instruction, thereby obtaining a video of the shooting direction of each camera device at the same time, which satisfies the user's two-way even Multi-directional shooting needs. As shown in FIG. 6, the embodiment of the present disclosure further provides an apparatus for taking a photo, including:

The first receiving module 601 is configured to receive a shooting instruction triggered according to the first triggering manner;

The first indication module 602 is configured to instruct, according to the shooting instruction, a plurality of camera devices of the mobile terminal to perform shooting simultaneously;

The first obtaining module 603 is configured to acquire a plurality of images obtained by the plurality of imaging devices respectively.

As shown in FIG. 7, the device further includes:

The synthesizing module 604 is configured to synthesize the plurality of images acquired by the acquiring module into one image according to a preset parameter.

The preset parameters include one or more of the following:

The image that needs to be retained is determined according to user selection or preset settings;

a transformation parameter of the plurality of images obtained according to a relative position of the plurality of imaging devices and/or according to the acquired distances between the plurality of imaging devices and respective imaging objects; wherein the transformation comprises one of Kind or more: Rotate, Flip, and Zoom.

The synthesis module 604 is also used to:

When the preset parameter includes a transformation parameter of the plurality of images obtained according to the obtained distance between the plurality of imaging devices and the respective photographic subject, the distance between the plurality of imaging devices and the respective photographic subject is obtained.

The manner in which the synthesizing module 604 obtains the distance between the plurality of imaging devices and the respective photographic subjects includes ultrasonic ranging or infrared ranging.

The apparatus may further include a preview module for:

Instructing the plurality of camera devices to turn on and obtain a preview image according to the preparation for photographing instruction;

Obtaining the preview image;

Combining the preview image into an image according to the preset parameter;

The synthesized image is sent to the display of the mobile terminal.

As shown in FIG. 8, an embodiment of the present disclosure further provides an apparatus for capturing a video, including:

The second receiving module 801 is configured to receive a shooting instruction triggered according to the third triggering manner;

a second indication module 802, configured to instruct a plurality of camera devices of the mobile terminal to perform shooting simultaneously according to the shooting instruction;

The second obtaining module 803 is configured to acquire the plurality of videos obtained by the plurality of camera devices respectively.

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present disclosure may 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.) in which computer usable program code is embodied.

The present disclosure is directed to a flowchart of a method, apparatus (system), and computer program product according to an embodiment of the present disclosure. And I or block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flow and/or blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

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 flows of the flowchart or a block or blocks of the I or block diagram.

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.

It is apparent that those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the disclosure. Thus, it is intended that the present invention cover the modifications and the modifications

Claims

Rights request

1. A method of taking photos, characterized in that the method includes the following steps:

Receive a shooting instruction triggered according to the first triggering method;

Instruct multiple camera devices of the mobile terminal to shoot simultaneously according to the shooting instruction;

A plurality of images captured by the plurality of camera devices are obtained.

2. The method according to claim 1, characterized in that, the method further includes:

The multiple images are combined into one image according to preset parameters.

3. The method according to claim 2, characterized in that the preset parameters include one or more of the following:

A background-removed image obtained according to selection instructions or preset information;

Transformation parameters of the multiple images obtained based on the relative positions of the multiple camera devices and/or based on the obtained distances between the multiple camera devices and respective shooting objects; wherein the transformation includes the following: one or more.

4. The method according to claim 3, characterized in that, when the preset parameters include transformation parameters of the plurality of images obtained according to the acquired distances between the plurality of camera devices and respective shooting objects, the The method further includes: before instructing multiple camera devices of the mobile terminal to simultaneously shoot according to the shooting instruction, obtaining the distances between the multiple camera devices and respective shooting objects.

5. The method according to claim 4, wherein the method of obtaining the distances between the plurality of camera devices and respective shooting objects includes ultrasonic ranging or infrared ranging.

6. The method according to any one of claims 2 to 5, characterized in that, before receiving the shooting instruction triggered according to the first triggering method, the method further includes the steps:

Receive a preparation for shooting instruction triggered according to the second triggering method;

Instruct multiple camera devices of the mobile terminal to turn on and obtain a preview image according to the preparation shooting instruction; obtain the preview image;

Combine the preview images into one image according to the preset parameters;

The synthesized image is sent to the display of the mobile terminal.

7. A device for taking photos, characterized in that the device includes:

a first receiving module, configured to receive a shooting instruction triggered according to the first triggering method;

The first instruction module is used to instruct multiple camera devices of the mobile terminal to shoot simultaneously according to the shooting instruction; the first acquisition module is used to acquire multiple images captured by the multiple camera devices respectively.

8. The device according to claim 7, characterized in that the device further includes:

A synthesis module, configured to synthesize the multiple images acquired by the acquisition module into one image according to preset parameters.

9. The device according to claim 8, wherein the preset parameters include one or more of the following:

According to the relative positions of the plurality of camera devices, and/or according to the obtained relationship between the plurality of camera devices and their respective shooting distance of the object, and obtained transformation parameters of the multiple images; wherein the transformation includes one or more of the following.

10. The device according to claim 9, characterized in that the synthesis module is also used for:

When the preset parameters include transformation parameters of the plurality of images obtained based on the obtained distances between the plurality of camera devices and respective shooting objects, the distances between the plurality of camera devices and respective shooting objects are obtained.

11. The device according to claim 10, the method by which the synthesis module obtains the distances between the plurality of camera devices and respective shooting objects includes ultrasonic ranging or infrared ranging.

12. The device according to any one of claims 8 to 11, characterized in that the device further includes a preview module for receiving the shooting instruction triggered according to the first triggering method:

Combine the preview images into one image according to the preset parameters;

The synthesized image is sent to the display of the mobile terminal.

13. A method of shooting video, characterized by including the following steps:

Receive shooting instructions triggered according to the third triggering method;

A plurality of videos captured by the plurality of camera devices are obtained.

14. A device for shooting video, characterized in that it includes:

a second receiving module, configured to receive shooting instructions triggered according to the third triggering method;

The second instruction module is used to instruct multiple camera devices of the mobile terminal to shoot simultaneously according to the shooting instruction; the second acquisition module is used to acquire multiple videos captured by the multiple camera devices respectively.