WO2010118611A1 - 一种截取动态图像的方法、系统及设备 - Google Patents
一种截取动态图像的方法、系统及设备 Download PDFInfo
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- WO2010118611A1 WO2010118611A1 PCT/CN2009/075597 CN2009075597W WO2010118611A1 WO 2010118611 A1 WO2010118611 A1 WO 2010118611A1 CN 2009075597 W CN2009075597 W CN 2009075597W WO 2010118611 A1 WO2010118611 A1 WO 2010118611A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
Definitions
- the invention relates to a screenshot technology in instant communication, in particular to a method for intercepting a dynamic image.
- IM instant messaging
- Current IM tools can provide real-time messaging, status display, voice/video, file transfer, file sharing, A series of instant information processing functions such as remote assistance and screenshots.
- the screenshot refers to the user intercepting the content on the local screen in the form of a picture during the process of using the IM tool to communicate with the friend; the captured picture can be transmitted to the friend, or can be copied to the IM expression library, which is convenient for the user in the future. use.
- Video files such as movies or perform online video while using IM tools to chat with friends.
- the user sometimes wants to capture a wonderful moment in the video being played, or capture multiple consecutive actions to share with the friend; or want to capture a wonderful moment or multiple continuous actions from the video, and edit Become an IM expression for future use.
- a capture of a highlight or a few consecutive actions in a video content is referred to as a video capture.
- a dedicated dynamic screenshot tool can be used to intercept an animation and intercept a video, but the intercepted content is usually stored in a video file format such as an audio video interleaved format (AVI), which cannot satisfy IM.
- AVI audio video interleaved format
- the user wants to store the intercepted content as an IM expression, or send it to the friend directly in the session as an image. begging. Summary of the invention
- the main object of the present invention is to provide a method, system and device for intercepting a moving image to solve the problem that the existing IM tool cannot realize the video screenshot.
- the invention provides a method for intercepting a dynamic image, the method comprising:
- the client obtains a video capture request initiated by the user
- the client intercepts the image corresponding to the specified time according to the preset configuration parameter and the specified time in the video screenshot request, and controls the intercepted image to generate a video screenshot required by the user according to the configuration parameter.
- the specified time in the video screenshot request is a time point or a time period.
- the image corresponding to the specified time is intercepted, and the generated video screenshot is controlled as follows: the client extracts multiple frames from the animation content corresponding to the time period in the video memory according to the preset configuration parameter. The image and edit the image of the extracted multiple frames into an emoticon-supported emoticon file.
- the image corresponding to the specified time is intercepted, and the generated video screenshot is controlled as follows: the client intercepts the instantaneous image corresponding to the specified time point from the video memory, and the original format of the intercepted instant image is Comparing the preset image formats in the configuration parameters, if the two are consistent, directly generating a video screenshot required by the user; if the two are inconsistent, converting the intercepted transient image from the original format to the configuration parameter The preset image format to generate the video screenshots required by the user.
- the configuration parameters include: the length of the interception, the quality of the captured image, the size of the emoticon file, and the frequency of the timing extraction animation.
- the invention also provides a system for intercepting a dynamic image, the system comprising:
- Client used according to preset configuration parameters and user-initiated video screenshot requests Specifying a time, intercepting an image corresponding to the specified time, and controlling the captured image according to the configuration parameter to generate a video screenshot required by the user;
- a server configured to provide services for interaction between the clients, and forward session information between the clients.
- the client further includes:
- An IM session module configured to provide an IM session service between clients
- a video screenshot management module configured to store the configuration parameter, and manage the configuration parameter
- a video capture module configured to intercept an image corresponding to the specified time from the video memory according to the preset configuration parameter and the specified time in the video screenshot request initiated by the IM session module, and control the intercepted according to the configuration parameter
- a video screenshot required by the image generation user is provided to the IM session module;
- a communication module configured to provide an interface between the IM session module and the video capture module
- the video screenshot module is further configured to: when the specified time is a time period, extract an image of the plurality of frames from the animation content corresponding to the time period in the video memory according to the preset configuration parameter; when the specified time is the time point , intercepts the instantaneous image corresponding to the specified time point from the video memory.
- the client further includes: a picture format conversion module, configured to compare the original format of the intercepted instant image with a preset image format in the configuration parameter when the captured image is captured, and when the two are inconsistent And converting the intercepted momentary image from the original format to a preset image format in the configuration parameter.
- a picture format conversion module configured to compare the original format of the intercepted instant image with a preset image format in the configuration parameter when the captured image is captured, and when the two are inconsistent And converting the intercepted momentary image from the original format to a preset image format in the configuration parameter.
- the client further includes: an expression editing module, configured to edit the images of the extracted plurality of frames into an expression file supported by the IM expression when the images of the plurality of frames are captured.
- an expression editing module configured to edit the images of the extracted plurality of frames into an expression file supported by the IM expression when the images of the plurality of frames are captured.
- the present invention also provides an apparatus for intercepting a dynamic image, the apparatus comprising:
- An IM session module configured to provide an IM session service between clients; a video screenshot management module, configured to store configuration parameters, and manage the configuration parameters; a video screenshot module, configured to: according to preset configuration parameters and a specified time in a video screenshot request initiated by the user through the IM session module, Obtaining an image corresponding to the specified time, and controlling the captured image to generate a video screenshot required by the user according to the configuration parameter, and providing the video to the IM session module;
- a communication module configured to provide an interface between the IM session module and the video capture module
- the video screenshot module is further configured to: when the specified time is a time period, extract an image of the plurality of frames from the animation content corresponding to the time period in the video memory according to the preset configuration parameter; when the specified time is the time point , intercepts the instantaneous image corresponding to the specified time point from the video memory.
- the device further includes: a picture format conversion module, configured to compare the original format of the intercepted instantaneous image with a preset image format in the configuration parameter when the captured image is captured, and when the two are inconsistent, The intercepted momentary image is converted from the original format to a preset image format in the configuration parameters.
- a picture format conversion module configured to compare the original format of the intercepted instantaneous image with a preset image format in the configuration parameter when the captured image is captured, and when the two are inconsistent, The intercepted momentary image is converted from the original format to a preset image format in the configuration parameters.
- the device further includes: an expression editing module, configured to edit the image of the extracted plurality of frames into an expression file supported by the IM expression when the images of the plurality of frames are intercepted.
- an expression editing module configured to edit the image of the extracted plurality of frames into an expression file supported by the IM expression when the images of the plurality of frames are intercepted.
- the method, system and device for intercepting a dynamic image acquire a video screenshot request initiated by a user during an IM session of the client; and from the preset configuration parameter and the specified time in the video screenshot request, from the video memory The image corresponding to the specified time is intercepted, and the video screenshot required by the user is generated according to the captured image.
- the invention realizes the IM-based video screenshot, which makes up for the defect that the prior art screenshot function cannot intercept the video player content.
- the invention satisfies the needs of the user for instant interception, instant transmission, and creation of an IM expression in the video; the intercepted content is not fixed, and the user can freely select the image content to be intercepted; the interception area is not fixed, and the user can freely select the desired The area and scope of the interception; and the user can control the entire video screenshot process by configuring parameters, thereby increasing the user experience.
- FIG. 1 is a flow chart of a method for capturing a dynamic image according to the present invention
- FIG. 2 is a flow chart showing an operation of intercepting an animation moment in the present invention
- FIG. 3 is a flow chart showing an operation of intercepting a continuous animation in the present invention.
- FIG. 4 is a schematic structural diagram of a system for capturing a dynamic image according to the present invention. detailed description
- a method for intercepting a dynamic image provided by the present invention mainly comprises the following steps:
- Step 101 The client obtains a video screenshot request initiated by the user.
- the client in the present invention can be various terminal devices capable of instant communication, such as: Personal Computer (PC), Personal Digital Assistant (PDA), Mobile Phone (MP, Mobile Phone), etc. .
- PC Personal Computer
- PDA Personal Digital Assistant
- MP Mobile Phone
- M Mobile Phone
- the user can simultaneously play a video file such as a movie or perform an online video; at this time, if the user needs to intercept a wonderful moment or a plurality of consecutive videos in the video being played.
- a video file such as a movie or perform an online video
- the user can select the operation of intercepting the animation moment through the operation menu, trigger the client to enter the operation flow of intercepting the animation moment, and carry the user specified in the initiated video screenshot request.
- the point in time; the specified point in time is used to inform the client where the animation needs to be intercepted.
- the user can double-click on the picture in the video being played on the screen to obtain the time point of the animation that needs to be intercepted. For example: If the user needs to capture the picture A in the video, when the video is played to the picture A, double-click the picture A with the mouse to obtain the time point corresponding to the picture A.
- the user can select through the operation menu. Intercepting the operation of the continuous animation, triggering the client to enter the operation flow of intercepting the continuous animation, and carrying the user-specified time period in the initiated video screenshot request; the specified time period is used to inform the client that the continuous animation that needs to be intercepted is located Location range.
- the user can double-click the screen in the video being played on the screen twice to obtain the time period of the continuous animation that needs to be intercepted.
- the so-called double-clicking means that the first time you double-click the mouse to determine the starting time point of the continuous animation that needs to be intercepted, double-click again to determine the ending time point of the continuous animation that needs to be intercepted.
- the time period between the screen A and the screen B is obtained by double-clicking twice.
- Step 102 The client intercepts the image corresponding to the specified time according to the preset configuration parameter and the specified time in the video screenshot request, and controls the captured image to generate a video screenshot required by the user according to the configuration parameter.
- the client executes the operation flow of intercepting the animation moment according to the preset configuration parameter and the time point specified in the video screenshot request; if the user triggers the client Entering the operation flow of intercepting continuous animation, the client executes the operation flow of intercepting the continuous animation according to the preset configuration parameters and the time period specified in the video screenshot request.
- Intercepting animation moments and intercepting continuous animations can be done by DirectX.
- the client performs the operation flow of intercepting the animation moment, as shown in Figure 2, which mainly includes the following steps:
- Step 201 The client intercepts the instantaneous image corresponding to the specified time point from the video memory.
- the client intercepts the instantaneous image corresponding to the specified time point from the video memory according to the time point specified in the video capture request initiated by the user. For example: The time point specified in the video screenshot request For 5 minutes and 10 seconds, the client intercepts the momentary image corresponding to 5 minutes and 10 seconds in the video file being played from the video memory.
- Step 202 The client compares the original format of the intercepted instant image with the preset image format in the configuration parameter. If the two are consistent, step 203 is performed; if the two are inconsistent, step 204 is performed.
- the instant image intercepted by the client has an original format, which may be system default.
- the user can preset the image format that the user needs to obtain in the configuration parameters according to actual needs.
- the original format of the instantaneous image is compared with the preset image format in the configuration parameter, if the two are consistent. , indicating that the intercepted instant image conforms to the image format required by the user, and then performs step 203; if the two are inconsistent, it indicates that the intercepted instantaneous image does not conform to the image format required by the user, and then step 204 is performed.
- Step 203 directly generate a video screenshot required by the user.
- the client sends the instant image as a video screenshot to the IM session box on the user interface; and further, according to the operation instruction sent by the user through the IM session box,
- the video screenshots can be stored in the IM emoticon, or the video screenshots can be sent directly to the opposite end of the IM session.
- Step 204 Convert the captured instant image from the original format to a preset image format in the configuration parameter to generate a video screenshot required by the user.
- the client converts the instantaneous image from the original format to the preset image format in the configuration parameter, and sends the video screenshot obtained by the format conversion to the user.
- the IM session box on the interface according to the operation instruction sent by the user through the IM session box, the video screenshot can be stored in the IM expression library, or the video screenshot can be directly sent to the opposite end of the IM session.
- Image formats that can be converted include: bmp, jpg, png, tif, gif, and more.
- the client performs the operation flow of intercepting the continuous animation, as shown in Figure 3, which mainly includes the following steps:
- Step 301 The client extracts an image of multiple frames from the animation content corresponding to the time period in the video memory according to the preset configuration parameter and the time period specified in the video screenshot request.
- the preset configuration parameters can include: the length of the interception, the quality of the captured image, the size of the emoticon file, and the frequency of the timing extraction animation. These configuration parameters can be set by default or can be customized by the user. Since the length of the interception, the quality of the captured image, and the frequency of the timing extraction animation affect the size of the emoticon file, and the size of the emoticon file is limited in practical applications, the length of the user-defined setting, the quality of the intercepted image, and the timing are limited. The frequency of extracting the animation needs to satisfy the condition that the size of the emotic file does not exceed the predetermined upper limit.
- the client extracts the image of the plurality of frames from the animation content corresponding to the specified time period in the display memory according to the timing of extracting the animation in the configuration parameter; the image of the extracted multiple frames needs to meet the requirements of the configuration parameters on the image quality.
- the specified time period cannot exceed the length of time intercepted in the configuration parameters.
- Step 302 The client edits the image of the extracted multiple frames into an expression file supported by the IM expression.
- the client can combine the images of the extracted multiple frames by using the open source library Cxlmage to generate an expression file supported by the IM expression, for example: a gif animation file. Subsequently, the client sends the generated IM emoticon file to the IM session box on the user interface; and according to the operation instruction sent by the user through the IM session box, the IM emoticon file can be stored in the IM emoticon library, or the IM emoticon file can be Directly sent to the peer end of the IM session.
- an expression file supported by the IM expression for example: a gif animation file.
- the method for intercepting dynamic images of the present invention can be implemented completely inside the IM tool without using a dedicated dynamic screenshot tool, thereby enhancing the session function of the IM and increasing the user experience in the IM session.
- the present invention also provides a system for intercepting a dynamic image.
- the system is composed of a client 10 and a server 20 connected to each other.
- the client 10 is configured to intercept an image corresponding to the specified time according to a preset configuration parameter and a specified time in the user-initiated video screenshot request, and control the captured image according to the configuration parameter to generate a user required Video screenshot.
- the server 20 is configured to provide services for interaction between the clients 10 and forward session information between the clients 10.
- Server 20 may typically be an IM server, but server 20 of the present invention is not limited to a particular type of server.
- the device for intercepting a dynamic image provided by the present invention comprises: an IM session module 11, a video screenshot management module 12, a video screenshot module 13 and a communication module 14.
- the IM session module 11 is configured to provide an IM session service between the clients 10.
- the video truncation management module 12 is configured to store configuration parameters and manage configuration parameters.
- the video screenshot module 13 is connected to the video screenshot management module 12, and is configured to intercept an image corresponding to the specified time from the video memory according to the preset configuration parameter and the specified time in the video screenshot request initiated by the user through the IM session module 11, and according to the configuration
- the video capture of the captured image generated by the parameter control is provided to the IM session module 11.
- the video screenshot module 13 intercepts the instantaneous image corresponding to the specified time point from the video memory; if the specified time in the video screenshot request is the time period, the video screenshot The module 13 extracts images of a plurality of frames from the animation content corresponding to the time period in the video memory according to the preset configuration parameters.
- the communication module 14 is connected to the IM session module 11 and the video capture module 13 for providing an interface between the IM session module 11 and the video capture module 13.
- the communication module 14 is a middle layer module that is provided for the separation of the system on the logical framework.
- the interface of the IM session module 11 and the video screenshot module 13 can be encapsulated by means of interfaces and messages, thereby implementing the IM session module 11 and
- the video capture module 13 calls the interface of the communication module 14.
- the present invention provides a device for intercepting dynamic images.
- the foregoing module further includes: a picture format conversion module 15 and a connection video screenshot module 13 configured to: when the intercepted instant image is captured, the original format of the intercepted instant image and the preset image format in the configuration parameter Compare, and when the two are inconsistent, convert the captured instant image from the original format to the preset image format in the configuration parameters.
- the device for capturing a dynamic image further includes: an expression editing module 16 connected to the video screenshot module 13 for intercepting When an image of a plurality of frames is used, the images of the extracted plurality of frames are edited into an expression file supported by the IM expression.
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