WO2013143380A1 - 一种视频模拟形象的通信方法和装置 - Google Patents
一种视频模拟形象的通信方法和装置 Download PDFInfo
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- WO2013143380A1 WO2013143380A1 PCT/CN2013/072246 CN2013072246W WO2013143380A1 WO 2013143380 A1 WO2013143380 A1 WO 2013143380A1 CN 2013072246 W CN2013072246 W CN 2013072246W WO 2013143380 A1 WO2013143380 A1 WO 2013143380A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234336—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by media transcoding, e.g. video is transformed into a slideshow of still pictures or audio is converted into text
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
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- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
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- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8146—Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics
Definitions
- the present invention relates to the field of network communication technologies, and in particular, to a video analog image communication method and apparatus. Background technique
- the video chat communication tool actually utilizes a webpage or client technology, and uses a video capture tool such as a camera to perform visual chat communication.
- the two sides of the communication record their own video images through the cameras installed on the data processing equipment (such as computers, smart phones, etc.) to achieve the effect of visual chat.
- This kind of chat effect is vivid, so video chat tools have been more and more Netizens love it.
- FIG. 1 is a schematic diagram of a typical video data processing and transmission of current video chat technology.
- the sender and the receiver specifically refer to a video chat tool installed on the data processing device of both communication parties.
- the video chat tool needs to be connected to a local video capture tool such as a camera.
- the sender's video chat tool collects the video data captured by the local camera, compresses and encodes the video data, converts it into video bitmap data, and transmits it to the receiver via the network.
- a bitmap also called a bitmap image or a rendered image, is composed of a single point called a pixel (picture element) that can be arranged and dyed differently to form a pattern.
- the video chat tool of the receiver After receiving the video bitmap data, the video chat tool of the receiver is decoded and decompressed, and then displayed on the local display interface, thereby realizing the transmission of the video data.
- Figure 1 only the one-way transmission of the video image is shown, which is the same for the video image transmission process in the reverse direction. In this way, the two parties can use the video chat tool to interact with the video.
- FIG. 2 is a schematic diagram of a conventional video simulation of a character video in video communication. Referring to Figure 2, this technique is a modification of the conventional video communication technology shown in Figure 1.
- the video chat tool of the sender collects the video data captured by the camera, filters the video data, and simulates and renders the corresponding cartoon video simulation image based on the captured video image of the person, that is, the cartoon image of the cartoon image, and then
- the video data of the cartoon image is compressed and encoded, and the video bitmap data is generated and transmitted to the receiver through the network;
- the video chat tool of the receiver performs corresponding decoding after receiving the video bitmap data of the cartoon image. Unzip and finally display on the local display interface.
- the prior art only improves the traditional video chat technology shown in FIG. 1 and uses the traditional video compression technology to encode the rendered video data and transmit it to the other party of the call.
- the real video data, the data transmitted in the network is video bitmap data, the data volume of the video bitmap data is large, the network traffic occupied by the network transmission is too large, and the network bandwidth resources are limited. This will cause the video to play unsmoothly.
- the main object of the present invention is to provide a video analog image communication method and apparatus to reduce the amount of data transmitted by the network and save network bandwidth resources.
- a communication method for video simulation image comprising:
- the sender collects the camera data, converts the captured camera data into vector data through an image recognition algorithm, and transmits the vector data to the receiver;
- the receiving party calls a cartoon rendering model, and renders a corresponding cartoon video simulation image according to the received vector data and the cartoon rendering model.
- a video simulation image communication device comprising:
- the camera data acquisition module is configured to collect local camera data
- a recognition conversion module configured to convert the captured image data into vector data by using an image recognition algorithm
- a sending module configured to send vector data to a receiver
- a receiving module configured to receive data from a sender
- the other party video simulation module is configured to invoke a cartoon rendering model, and render a corresponding cartoon video simulation image according to the received vector data and the cartoon rendering model.
- a machine readable medium having stored thereon a set of instructions that, when executed, cause the machine to perform the communication method of the video analog image.
- FIG. 1 is a schematic diagram of a typical video data processing and transmission of a video chat technology
- FIG. 2 is a schematic diagram of a conventional cartoon video of a character in a video communication
- FIG. 3 is a schematic flow chart of a communication method for a video simulation image according to the present invention.
- FIG. 4 is a schematic diagram of a composition of a video simulation image communication device of the present invention.
- FIG. 5 is a schematic flow chart of still another specific embodiment of the method according to the present invention.
- FIG. 6 is a schematic flow chart of still another specific embodiment of the method of the present invention.
- FIG. ⁇ is a schematic diagram showing the composition of still another embodiment of the communication device for video analog image of the present invention.
- DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
- FIG. 3 is a schematic flow chart of a communication method for a video simulation image according to the present invention. Shown in FIG. 3 is a unidirectional process in the communication process of the video simulation image of the present invention, that is, assuming that video communication between users A and B is performed, the image of A is displayed to the process involved in B, where A is a transmission. Fang, B is the receiver. The process of displaying the image of B to A is the same, except that B is the sender and A is receiver. In addition, this scheme is also applicable to the video process of multiple people. One party can be regarded as the sender, and the other parties are the receivers. The following will be described in detail in accordance with the specific process involved.
- the method of the present invention mainly includes: the sender collects the camera data, converts the captured camera data into vector data through an image recognition algorithm, and sends the vector data to the receiver; the receiver invokes the cartoon rendering model, according to the received
- the obtained vector data and the cartoon rendering model render a corresponding cartoon video simulation image (referred to as a cartoon image in the present specification), and finally display the video of the cartoon video simulation image.
- the present invention also discloses a video simulation image communication device for performing the method of the present invention.
- 4 is a schematic diagram of a composition of a video analog image communication device according to the present invention.
- the device is a video chat tool installed on a user terminal, and the communication parties can perform the present invention through the video chat tool.
- the method for implementing the video communication of the cartoon video simulation image of the present invention the device specifically includes:
- the camera data acquisition module 401 is configured to collect local camera data
- the identification conversion module 402 is configured to convert the captured imaging data into vector data by using an image recognition algorithm
- a sending module 403, configured to send vector data to a receiver
- a receiving module 404 configured to receive data from a sender
- the other party video simulation module 405 is configured to invoke a cartoon rendering model, and render a corresponding cartoon video simulation image according to the received vector data and the cartoon rendering model, and output the displayed card-passing video simulation image.
- the sender specifically refers to a video analog image communication device of the sender
- the receiver specifically refers to a video analog image communication device of the receiver.
- the method of the present invention needs to preset the cartoon rendering model data, and the basic data required for the cartoon image finally rendered by the receiver is set in the cartoon rendering model data, and the data mainly included in the cartoon rendering model data is: Image model data and further cartoon effect data.
- the base image model data includes, for example, model data of various face types of cartoon characters, model data of various head types, model data of various facial features, model data of various clothes, and models of glasses accessories worn. Data; each basic image model data has call identification information.
- a corresponding image is rendered according to the model data, and the specified call identification information is sent by Party recognition through image recognition algorithm Don't get, for example, what face type (face type logo), facial features (five facial features), what hairstyle (hair style logo), what clothes to wear (clothing logo), whether to wear glasses and glasses (glass logo), and so on.
- the cartoon effect data may be used to further enhance and enrich the performance of the cartoon image, for example, cartoon effect data including various expressions and actions, such as happy cartoon effect data, blush cartoon effect data, and Khan's cartoon effect data, etc., can also be a predefined animation and so on.
- Each cartoon effect is correspondingly set with call instruction data, which is sent by the sender.
- the cartoon rendering model data may be pre-stored locally on the receiving side, or the cartoon rendering model data may be stored in the designated server in advance, and the storage address is notified to the receiving party. After receiving the vector data, the receiving party may The cartoon rendering model data is downloaded from the designated server.
- the sender collects the camera data mainly by connecting and communicating with the camera acquisition device such as the camera of the sender terminal, and collecting the camera data captured by the camera.
- the camera data captured by the sender is usually the character image of the sender user, such as the user's basic image (including head shape, face type, clothes, etc.), expression, head, and limb movements.
- the captured image data is subjected to recognition processing by an image recognition algorithm to obtain vector data.
- the image recognition algorithm may adopt the prior art, and the main processing processes include: 1) image preprocessing, such as gray level normalization processing; 2) face detection and positioning processing; 3) image feature extraction processing; 4) face recognition deal with.
- the vector data of the image data can be obtained. Compared with the bitmap data, the vector data is greatly reduced, and the occupation of the network bandwidth can be reduced.
- the vector data includes basic image data and image change data.
- the basic image data is used to specify a specific basic image model in the cartoon rendering model, such as what face type (face type identification), facial features (five features), what hairstyle (hair style identification), what clothes to wear (clothing) Marking), whether to wear glasses and the style of the glasses (glasses logo), etc.
- These basic image data are the calling identifiers of the specific basic image model data in the cartoon rendering model, and the receiving party can read according to the instructions of the basic image data.
- the corresponding basic image model data in the cartoon rendering model is taken, thereby rendering the basic image of the cartoon video simulation image.
- the specific rendering process can utilize existing animation rendering techniques, wherein the main processes include: 1) reading the loaded model data; 2) calculating the rendered object using the rendering model formula according to the basic image data and the loaded model data. Specific image information; 3) Draw a specific cartoon image.
- the image change data is used to indicate dynamic change information of the character image in the current camera video, such as the degree of eye closure, opening (for example, can be expressed by 1 to 3 levels), the degree of mouth closing, opening (for example, It is expressed in 1 to 10 levels.)
- the amplitude of the head swing (used by -10 to 10 levels).
- the receiver can modify the rendered base image according to the image change data to obtain a dynamic cartoon video simulation image.
- the present invention transmits vector data with a very small amount of data in the network instead of bitmap data, thereby reducing the amount of data transmitted by the network and saving network bandwidth resources.
- the video quality (such as resolution) of the bitmap data transmitted by the prior art scheme is fixed. Once the quality of the video rendered by the sender is not high, even if the hardware computing capability of the receiver is very strong, it cannot be displayed. Produce high quality video effects.
- the present invention transmits vector data to the receiver, if the receiver's hardware computing power is strong, it is possible to render a better video effect than the sender, such as higher resolution, more realistic animation details, and the like.
- FIG. 5 is a schematic flowchart of still another embodiment of the method according to the present invention.
- the video analog image communication device of the sender may further be connected to an audio collection device such as a microphone.
- the collected audio data is sent to the receiver, and the receiver plays the received audio data in synchronization with the rendered cartoon image.
- the transmission communication channel of the audio data may be an independent communication channel, or may use the same communication channel as the vector data.
- the device further includes: an audio collection module 406, configured to collect audio data, by the sending module 403 The audio data is further sent to the receiver.
- the video simulation module 405 is further configured to: play the received audio data from the receiver synchronously with the rendered cartoon image.
- the sender may also issue an instruction for a special cartoon effect to be sent to the recipient as part of the vector data.
- These instructions correspond to the cartoon effect data in the above cartoon rendering model, and a specific instruction corresponds to a specific cartoon effect, for example, a cartoon effect instruction including various moods, such as a happy cartoon effect instruction, a blush cartoon effect instruction, Sweating cartoon effect instructions, instructions for playing predefined animations, and more.
- Trigger mode 1 The sending party provides a trigger mechanism for specifying a cartoon effect, for example, displaying a trigger button on the interface, for example, respectively, triggering a happy effect, a blush effect , sweating effect, etc., in the After the trigger mechanism is triggered (if the button is clicked), the instruction data corresponding to the cartoon effect is sent to the receiver; the receiver reads the corresponding cartoon effect data from the cartoon rendering model according to the received instruction data.
- the cartoon effect is rendered on the cartoon video simulation image. For example, if the command of the blush effect is triggered, a cartoon effect of blushing is rendered.
- Trigger mode 2 The sender uses the sensor to detect the sensing signal. For example, many mobile phones currently have various sensors that can detect various sensing signals, such as the shaking of the mobile phone, the location of the mobile phone, and the direction in which it is aligned.
- the sender's video analog image communication device collects the sensing signals of the sensors and transmits the sensing signal data as a specific instruction of the cartoon effect to the recipient.
- the cartoon rendering model stores a correspondence between a specific sensing signal and a specific cartoon effect, and the receiving party reads the corresponding cartoon effect data from the cartoon rendering model according to the received sensing signal data, and simulates the image image in the cartoon video. Render the corresponding cartoon effect on it.
- the device 400 further includes a specified effect triggering module 407 for providing a trigger mechanism for specifying a cartoon effect.
- the instruction data corresponding to the cartoon effect is sent to the receiver through the sending module 403.
- the counterpart video simulation module 405 is further configured to: read from the cartoon rendering model according to the received instruction data.
- the corresponding cartoon effect data is output, and the cartoon effect is rendered on the cartoon video simulation image screen.
- the device 400 may further include a sensing detection module 408, configured to detect the sensing signal by using the sensor, and send the sensing signal data to the receiving party through the sending module 403.
- the counterpart video simulation module 405 is further configured to: The corresponding cartoon effect data is read from the cartoon rendering model according to the received sensing signal data, and the corresponding cartoon effect is rendered on the cartoon video simulation image screen.
- the sender of the present invention may further encode and compress the transmitted data before transmitting the data to the receiver, for example, using Huffman coding or Gzip data compression.
- the method is such that the data transmitted on the network is small; after receiving the data from the sender, the receiver further performs decompression and decoding processing.
- the transmission method can be diverse for different usage scenarios, such as one-to-one (two-party chat), or one-to-many (video conference, group game).
- the transmission of these data can be real-time or non-real-time, and can be temporarily saved by the server or relayed through the server. Because the amount of data in these data is small, it can be done faster on the network. Transmission.
- the sending module further includes an encoding module, configured to encode, compress, and then transmit the data to be sent;
- the module further includes a decoding module, configured to decode and decompress the received data, and then process the video simulation module of the counterpart.
- the method further includes: the sender copies the data sent to the receiver locally, and invokes with the receiver.
- the cartoon rendering model of the same cartoon rendering model, according to the copied data and the cartoon rendering model to render a corresponding cartoon video simulation image specifically comprising: rendering a cartoon image consistent with the rendering of the receiver according to the vector data
- the corresponding cartoon effect is rendered according to the instruction data triggered by the trigger mechanism and/or the sensing signal detected by the sensor, and the audio data collected by the local microphone is synchronized with the locally rendered cartoon image.
- the receiver and the sender are required to call the same cartoon rendering model data, or call the same Cartoon rendering model data and local hardware configuration information for video rendering.
- the hardware configuration information may be, for example, information such as screen resolution, refresh frequency, and the like.
- the synchronization method can be:
- a cartoon rendering model is set in at least one of the two parties.
- the two parties synchronously transmit the cartoon rendering model data through the agreed communication protocol, so that both parties have the same cartoon. Rendering the model;
- both parties need to call the cartoon rendering model, they directly call the local cartoon rendering model.
- the cartoon rendering model data is synchronously transmitted through the communication protocol, the local hardware configuration information for video rendering may be further synchronously transmitted, and the two parties adjust the hardware configuration information to be consistent according to a preset policy.
- the cartoon rendering model is set only on the sender, and in the case that the receiver and the sender are in non-real-time communication, the sender sends the cartoon rendering model data to the designated server while transmitting the vector data.
- the receiving party downloads the cartoon rendering model data from the storage address to the local; when both parties need to call the cartoon rendering model, directly call the local Cartoon rendering model.
- the sender sends the cartoon rendering model data
- the local hardware configuration information for video rendering may be further sent to the receiver, and after receiving, the receiver adjusts the local hardware configuration information to the sender.
- the hardware configuration information is consistent.
- the communication device of the video simulation image may further include: a copying module 409, configured to copy the data sent to the receiver locally;
- the video simulation module 410 is configured to call a cartoon rendering model identical to the cartoon rendering model of the other party, and render a corresponding cartoon video simulation image according to the copied data and the cartoon rendering model.
- the video simulation image communication device may further include a model synchronization module 41 1 for synchronizing cartoon rendering model data of both sides of the communication, or cartoon rendering model data of both sides of the synchronization communication and hardware configuration information for video rendering. Specifically, the above synchronization method can be adopted.
- the embodiment of the invention further provides a video simulation image communication device, comprising: a memory for storing instructions; and a processor coupled to the memory.
- the processor is configured to execute instructions stored in the memory and configured as various implementations of the communication method for performing the video analog image described above.
- embodiments of the present invention further provide a machine readable medium having stored thereon a set of instructions that, when executed, cause the machine to perform various embodiments of the communication method of the video analog image.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Graphics (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Processing Or Creating Images (AREA)
- Information Transfer Between Computers (AREA)
- Image Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
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JP2014526383A JP5870469B2 (ja) | 2012-03-29 | 2013-03-06 | ビデオシミュレーション画像のための通信方法及びデバイス |
US14/165,117 US9210372B2 (en) | 2012-03-29 | 2014-01-27 | Communication method and device for video simulation image |
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CN201210087665.1A CN103369289B (zh) | 2012-03-29 | 2012-03-29 | 一种视频模拟形象的通信方法和装置 |
CN201210087665.1 | 2012-03-29 |
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US14/165,117 Continuation US9210372B2 (en) | 2012-03-29 | 2014-01-27 | Communication method and device for video simulation image |
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JP (1) | JP5870469B2 (zh) |
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CN103647922A (zh) * | 2013-12-20 | 2014-03-19 | 百度在线网络技术(北京)有限公司 | 虚拟视频通话方法和终端 |
CN105631914A (zh) * | 2014-10-31 | 2016-06-01 | 鸿富锦精密工业(武汉)有限公司 | 漫画创作系统及方法 |
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