WO2012075937A1 - Procédé d'appel vidéo et vidéophone - Google Patents

Procédé d'appel vidéo et vidéophone Download PDF

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Publication number
WO2012075937A1
WO2012075937A1 PCT/CN2011/083572 CN2011083572W WO2012075937A1 WO 2012075937 A1 WO2012075937 A1 WO 2012075937A1 CN 2011083572 W CN2011083572 W CN 2011083572W WO 2012075937 A1 WO2012075937 A1 WO 2012075937A1
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WIPO (PCT)
Prior art keywords
video
frame image
request parameter
area
image
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Application number
PCT/CN2011/083572
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English (en)
Chinese (zh)
Inventor
李磊
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华为终端有限公司
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Filing date
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Publication of WO2012075937A1 publication Critical patent/WO2012075937A1/fr

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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

Definitions

  • Video call method and videophone The present application claims the priority of the Chinese patent application filed on Dec. 7, 2010, with the application number 201010577255.6, the invention name being the video call method and the videophone, the entire contents of which are incorporated by reference. In this application.
  • the present invention relates to the field of communications technologies, and in particular, to a video call method and a videophone. Background technique
  • Videophone is a kind of telephone terminal capable of video communication. It can use the telephone network to transmit the image and voice signals of both parties in real time in two directions, achieving the effect of face-to-face communication, realizing the dream of people talking and seeing their voices. Therefore, it is loved by the public.
  • the videophone technology is maturing, and the videophone market is poised for growth.
  • An existing video calling method is implemented by an H323/SIP based videophone, which can provide end-to-end voice and video communication services, but the video communication video is limited to a fixed size mode, such as QCIF, CIF. Fixed mode such as 4CIF, so when one end of the video call needs to enlarge a certain video area of the video of the other end user, the video area can only be enlarged by partial enlargement.
  • the video area can be simply amplified by partial amplification, and the overall bandwidth of the transmitted video data is fixed.
  • the clarity of the image which reduces the user experience.
  • the embodiment of the present invention provides a video call method, which is used to obtain a video sent by a video call peer end through a video transmission channel, including: acquiring a first area in the first frame image of the video that needs to be enhanced. Request parameter, the first area is a partial area determined in the first frame image of the video;
  • the second frame image of the video is displayed.
  • the embodiment of the present invention further provides a video calling method, which is used to send a video to a video call peer end through a established video transmission channel during a video call, including: receiving the peer end needs to be enhanced in the first frame image of the video a request parameter of the displayed first region, the first region being a partial region determined in the first frame image of the video;
  • the embodiment of the invention provides a videophone, which is used to obtain a video sent by a video call peer through a video transmission channel, including:
  • a parameter obtaining unit configured to acquire a request parameter of a first region of the first frame image of the video that needs to be enhanced, wherein the first region is a partial region determined in the first frame image of the video;
  • a sending unit configured to send, to the video call peer, the request parameter acquired by the parameter acquiring unit
  • a receiving unit configured to receive, after the sending unit sends the request parameter, a video second frame image that is sent by the video call peer end by using the video transmission channel, where the video second frame image is used by the video
  • the call peer is obtained by the camera processing according to the request parameter
  • the embodiment of the present invention provides a videophone for transmitting video to a video call peer through a video transmission channel, including:
  • a receiving unit configured to receive a request parameter of a first area that needs to be enhanced and displayed in a first frame image of the video, where the first area is a partial area determined in the first frame image of the video;
  • a data acquiring unit configured to obtain a second frame image of the video by using a camera according to the request parameter received by the receiving unit
  • a sending unit configured to send, by using the video transmission channel, the second frame image of the video obtained by the data acquiring unit to the opposite end, so that the second frame image of the video is displayed on the opposite end of the video call.
  • the videophone obtains the request parameter of the first area that needs to be enhanced in the first frame image of the video, and sends the request parameter to the pair.
  • the peer end can send the second frame image of the video corresponding to the request parameter through the data transmission channel, thereby displaying the second frame image of the video corresponding to the first region, thereby implementing enhanced display of the image content of the first region.
  • FIG. 1 is a flowchart of a video call method according to an embodiment of the present invention
  • FIG. 2a and FIG. 2b are schematic diagrams showing a video area displayed on a display screen according to an embodiment of the present invention
  • 3 is a flowchart of a video call method according to another embodiment of the present invention
  • FIG. 4 is a structural diagram of a videophone according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of a videophone according to another embodiment of the present invention
  • FIG. 6 is a structural diagram of a videophone according to another embodiment of the present invention
  • FIG. 7 is a videophone according to another embodiment of the present invention
  • FIG. 8 is a structural diagram of a videophone according to another embodiment of the present invention.
  • FIG. 1 illustrates an embodiment of a video call method provided by the present invention.
  • the embodiment describes a process of processing a video call during a video call, and the videophone is established.
  • the video transmission channel obtains the video sent by the video call peer, and the embodiment includes:
  • the enhanced display may be an enlarged display, or may be displayed with higher definition.
  • the first area that needs to be enhanced in the first frame of the video may be a regular graphic or an irregular graphic, wherein the regular graphic may be a rectangle, a square, a circle, or the like.
  • the request parameter is a parameter set that can directly determine a video region, and includes a location vector parameter, and the location vector parameter may specifically be information such as location coordinates.
  • the obtained request parameters are less.
  • the regular graphic is a rectangle or a square
  • only the position coordinates of the two diagonals of the rectangle or the square are required as the request parameter;
  • it is circular only the position coordinates of the center of the circle and the radius or diameter of the circle are required as request parameters.
  • FIG. 2a is a schematic diagram showing a first area displayed on the display screen.
  • the display screen of the videophone currently displays the first frame image 201 of the video acquired by the video camera at the opposite end of the video call, and the user needs to first video.
  • the first area in the frame image 201 is enlarged and displayed to determine the first area 202 that needs to be enlarged.
  • the first area 202 that needs to be enlarged is a rectangle, so the request parameter that needs to be determined may be the first area of the rectangle.
  • the position coordinates of two pairs of points A and B of 202 that is, the determined request parameters are A (xl, yl ), B ( x2 , y2 ), where A ( xl, yl ) represents the point A in the first frame image of the video 201
  • the position coordinates in , B ( x2, y2 ) represent the position coordinates of point B in the first frame image 201 of the video.
  • the acquired parameter is a request parameter that is converted into the first area by the user in the first area selected by the operation of the touch screen.
  • the acquired parameter is a request parameter that is converted to the first area by the user using the external stylus in the first area selected by the touch screen.
  • the acquired parameter is a first region selected by the user to input a number by using a button, and then the first region is converted into a request parameter of the first region.
  • Some rules of the enlarged area graphic are preset in the phone. When the user sets the first area that needs to be enlarged or needs to be clearly displayed, the user selects the preset first area graphic and controls the first by dragging or sliding. The size of an area, which in turn determines the first area selected by the end user.
  • the acquired parameter is a request parameter selected from the pre-saved parameters of the first region that needs to be displayed in an enlarged manner.
  • the request parameter obtained by the conversion may be further saved, so that when the video call is made again with the video call end, the Selecting the first area and directly using the saved request parameters not only reduces the user's operation, but also reduces the conversion operations that the videophone needs to perform, improves the processing speed of the videophone, and improves the user's operating experience.
  • the request parameters may be initiated in a session initiation protocol.
  • the request parameters may be sent to the video call peer in the form of a parameter of a Real-time Transport Control Protocol (RTCP) message.
  • RTCP Real-time Transport Control Protocol
  • the video transmission channel for transmitting the second frame image of the video is the same as the video transmission channel for transmitting the first frame image of the video, the overall bandwidth of the transmitted video data remains unchanged.
  • the video second frame image is obtained by encoding a corresponding data of the video call peer, and the corresponding data is data corresponding to the request parameter in the data collected by the camera.
  • Figure 2b depicts a schematic diagram of the first area of the display screen. As shown in Figure 2b, the display is currently the second frame of the video displayed in full screen, i.e., the first area 202 in the first frame of the video is magnified. display.
  • the resolution of the image content of the first region corresponding to the second frame image of the video is higher than the resolution of the image content of the first region corresponding to the image of the first frame of the video, and thus the video is displayed.
  • the sharpness of the first region corresponding to the second frame image of the video is higher than the sharpness of the first region corresponding to the image of the first frame of the video, thereby improving the display definition of the first region that needs to be enhanced.
  • the videophone obtains the request parameter of the first area that needs to be enhanced in the image of the first frame of the video, and sends the request parameter to the peer end, so that the peer end can send the data through the data transmission channel.
  • the video second frame image corresponding to the parameter is requested, so that the second frame image of the video corresponding to the first region is displayed, thereby implementing enhanced display of the image content of the first region.
  • FIG. 3 illustrates another embodiment of a video call method provided by the present invention.
  • This embodiment describes a process flow of a videophone during a video call, and the videophone sends a video to the video call peer through the established video transmission channel.
  • this embodiment includes:
  • 301 Receive, by the peer end, a request parameter of a first area that needs to be enhanced in the first frame image of the video, where the first area is a partial area determined in the first frame image of the video.
  • the enhanced display is an enlarged display.
  • the collection area of the camera may be adjusted according to the request parameter, so that the collection area of the camera is the image corresponding to the first area;
  • the data collected by the area; the collected data is encoded at a resolution corresponding to the first frame image of the video, thereby obtaining a second frame image of the video including the image content corresponding to the first area of the same size as the first frame image of the video. .
  • the enhanced display is an enlarged display, and the data collected by the camera may be acquired; the collected data is tailored according to the request parameter, and the corrected resolution corresponding to the first frame image of the video is The data is encoded to obtain a second frame of video of the same size as the first region.
  • the enhanced display is a higher definition display, at which time the data acquired by the camera is acquired; the resolution is higher than the resolution of the first region corresponding to the first frame image of the corresponding video.
  • the image data of the first region determined by the request parameter is encoded in the obtained data to obtain a second frame image of the video; correspondingly, the resolution corresponding to the image region other than the first region in the first frame image of the corresponding video is lower.
  • the resolution of the image data in the collected data and the image area corresponding to the request parameter is encoded.
  • the videophone can receive the request parameter of the first region that needs to be enhanced and displayed in the first frame image of the video sent by the video call peer end, and obtain the second frame image of the video according to the request parameter.
  • the request parameter is obtained by the camera processing to obtain the second frame image of the video, so that the second frame image of the video corresponding to the request parameter is sent to the video call peer end through the video transmission channel, so that the video call peer end can correspond to the video corresponding to the first area.
  • the second frame image is displayed to achieve image enhanced display of the first region.
  • the videophone provided by the present invention is described below.
  • the videophone provided by the embodiment of the present invention is any terminal capable of making a video call, such as a fixed telephone, a mobile phone, a personal computer with a videophone function, and a video.
  • Phone features such as laptops.
  • FIG. 4 illustrates an embodiment of a videophone provided by the present invention for acquiring a video transmitted by a video call peer through a video transmission channel during a video call, the videophone including:
  • the parameter obtaining unit 401 is configured to acquire a request parameter of the first region of the first frame image of the video that needs to be enhanced, and the first region is a partial region determined in the first frame image of the video.
  • the parameter obtaining unit 401 can be implemented by a signal receiver, a logic gate circuit or the like.
  • the sending unit 402 is configured to send, to the video call peer, the request parameter acquired by the parameter obtaining unit 401.
  • the sending unit 402 can be implemented by a signal transmitter.
  • the receiving unit 403 is configured to receive a second frame image of the video sent by the video call peer through the video transmission channel, where the second frame image of the video is obtained by the video call peer according to the request parameter by the camera processing.
  • the display unit 404 is configured to display a second frame image of the video received by the receiving unit 403.
  • the videophone sends the request parameter of the first area of the video in the first frame of the video to the opposite end of the video call, so that the peer can send the request parameter corresponding to the data transmission channel.
  • the second frame image of the video is displayed to display the second frame image of the video corresponding to the first region, thereby implementing enhanced display of the video image of the first region.
  • FIG. 5 illustrates another embodiment of a videophone provided by the present invention for transmitting video to a video call peer through an established video transmission channel during a video call, the videophone including:
  • the receiving unit 501 is configured to receive, by the peer end, a request parameter of the first area that needs to be enhanced and displayed in the first frame image of the video, where the first area is a partial area determined in the first frame image of the video.
  • the receiving unit 501 described above can be implemented by a signal receiver.
  • the data obtaining unit 502 is configured to obtain, by the camera 503, the second frame image of the video according to the request parameter received by the receiving unit 501.
  • the data acquisition unit 502 can be implemented by a digital image signal processor.
  • the sending unit 504 is configured to send, by using the video transmission channel, the second frame image of the video obtained by the data acquiring unit to the opposite end, so that the second frame image of the video is displayed on the opposite end of the video call.
  • the above-mentioned transmitting unit 504 can be implemented by a transmitter.
  • the videophone can receive the request parameter of the first area that needs to be enhanced and displayed in the first frame image of the video sent by the video call peer end, and obtain the second frame image of the video by the camera processing according to the request parameter. Therefore, the second frame image of the video corresponding to the request parameter is sent to the video call peer end through the video transmission channel, so that the video call peer end can display the second frame image of the video corresponding to the first region, thereby implementing the first region.
  • FIG. 6 illustrates another embodiment of a videophone provided by the present invention, which is used for transmitting a video call channel to a video call peer during a video call.
  • the videophone includes:
  • the receiving unit 601 is configured to receive, by the peer end, a request parameter of the first area that needs to be enhanced and displayed in the first frame image of the video, where the first area is a partial area determined in the first frame image of the video.
  • the receiving unit 601 described above can be implemented by a signal receiver.
  • the data obtaining unit 602 is configured to obtain, by the camera 603, the second frame image of the video according to the request parameter received by the receiving unit 601.
  • the data acquisition unit 602 can be implemented by a digital image signal processor. As shown in FIG. 6, the data obtaining unit 602 may specifically include: an adjusting subunit 6021, configured to adjust an acquisition area of the camera 603 according to the request parameter, so that the collection area of the camera is an image corresponding to the first area; The unit 6022 is configured to acquire data collected by the camera 603 from the collection area adjusted by the adjustment subunit 6021. The first coding subunit 6023 is configured to collect data collected by the first acquisition subunit 6022 by using the resolution of the first image. Encoding is performed to obtain a video second frame image including only the image content corresponding to the first region.
  • the sending unit 604 is configured to send, by using the video transmission channel, the second frame image of the video obtained by the data acquiring unit to the opposite end, so that the second frame image of the video is displayed on the opposite end of the video call.
  • the above-mentioned transmitting unit 604 can be implemented by a transmitter.
  • the videophone can receive the request parameter of the first region that needs to be enhanced and displayed in the first frame image of the video sent by the video call peer end, and obtain the video second frame image according to the request parameter through the camera according to the request parameter. Processing, obtaining a second frame image of the video, so that the second frame image of the video corresponding to the request parameter is sent to the video call peer end through the video transmission channel, so that the video call peer end can view the second frame image of the video corresponding to the first region.
  • the second frame image of the video includes only the image content corresponding to the first area, so that when the second frame image of the video is not displayed in full screen,
  • the display definition of the second frame image of the video can be improved; and even if the second frame image of the video is displayed full screen, it can be ensured that the second frame image of the video maintains the first region in the first frame image of the video. Sharpness.
  • Figure 7 illustrates another embodiment of a videophone provided by the present invention for transmitting video to a video call peer through an established video transmission channel during a video call, the videophone comprising:
  • the receiving unit 701 is configured to receive, by the peer end, a request parameter of the first area that needs to be enhanced and displayed in the first frame image of the video, where the first area is a partial area determined in the first frame image of the video.
  • the receiving unit 701 described above can be implemented by a signal receiver.
  • the data obtaining unit 702 is configured to obtain, by the camera 703, the second frame image of the video according to the request parameter received by the receiving unit 701.
  • the data acquisition unit 702 can be implemented by a digital image signal processor. As shown in FIG. 7, the data obtaining unit 702 may specifically include: a second obtaining subunit 7021, configured to acquire data collected by the camera 703; and an encoding processing subunit 7022, configured to use the second obtaining subunit 7021 according to the request parameter.
  • the collected data is clipped, and the clipped data is encoded at the resolution of the first frame image of the video to obtain a second frame image of the video including only the image content corresponding to the first region.
  • the sending unit 704 is configured to send, by using the video transmission channel, the second frame image of the video obtained by the data acquiring unit to the opposite end, so that the second frame image of the video is displayed on the opposite end of the video call.
  • the above-mentioned transmitting unit 704 can be implemented by a transmitter.
  • the videophone can receive the request parameter of the first region that needs to be enhanced and displayed in the first frame image of the video sent by the video call peer end, and obtain the video second frame image according to the request parameter through the camera according to the request parameter. Processing, obtaining a second frame image of the video, so that the second frame image of the video corresponding to the request parameter is sent to the video call peer end through the video transmission channel, so that the video call peer end can view the second frame image of the video corresponding to the first region. Display is performed to achieve enhanced display of the video image of the first region.
  • Figure 8 depicts another embodiment of a videophone provided by the present invention, the videophone During the video call, the video is transmitted to the video call peer through the established video transmission channel, and the videophone includes:
  • the receiving unit 801 is configured to receive a request parameter of the first area that needs to be enhanced and displayed in the first frame image of the video, where the first area is a partial area determined in the first frame image of the video.
  • the receiving unit 801 described above can be implemented by a signal receiver.
  • the data obtaining unit 802 is configured to obtain a video second frame image by using the camera 803 according to the request parameter received by the receiving unit 801.
  • the data acquisition unit 802 can be implemented by a digital image signal processor. As shown in FIG. 8, the data obtaining unit 802 may specifically include: a third obtaining sub-unit 8021, configured to acquire data collected by the camera 803; and a third encoding sub-unit 8022, which is higher than a first frame image of the corresponding video. The resolution of the area resolution is used to encode the first area corresponding to the request parameter in the data acquired by the third obtaining sub-unit 8021 to obtain the second frame image of the video.
  • the sending unit 804 is configured to send, by using a video transmission channel, the second frame image of the video obtained by the data acquiring unit to the opposite end, so that the second frame image of the video is displayed on the opposite end of the video call.
  • the above-mentioned transmitting unit 804 can be implemented by a transmitter.
  • the videophone can receive the request parameter of the first region that needs to be enhanced and displayed in the first frame image of the video sent by the video call peer end, and obtain the video second frame image according to the request parameter through the camera according to the request parameter. Processing, obtaining a second frame image of the video, so that the second frame image of the video corresponding to the request parameter is sent to the video call peer end through the video transmission channel, so that the video call peer end can view the second frame image of the video corresponding to the first region. Display is performed to achieve enhanced display of the video image of the first region.
  • the content of the information exchange, the execution process, and the like between the above-mentioned devices and the modules in the system are based on the same concept as the method embodiment of the present invention. For details, refer to the description in the method embodiment of the present invention, and details are not described herein again.
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiments can be completed by a computer program to instruct related hardware, and the above program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM: Read Random Memory), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)

Abstract

La présente invention concerne le domaine technique de la communication, et spécifiquement un procédé d'appel vidéo et un vidéophone. Pour une utilisation dans un processus d'appel vidéo consistant à acquérir une vidéo émise par un terminal opposé d'un appel vidéo sur un canal de transmission vidéo établi, le procédé consiste à : acquérir un paramètre de demande d'une première zone nécessitant une amélioration à l'intérieur d'une première trame d'image, la première zone étant une zone partielle confirmée de la première trame d'image de la vidéo ; envoyer le paramètre de demande au terminal opposé de l'appel vidéo ; recevoir une deuxième trame d'image de la vidéo envoyée par le terminal opposé de l'appel vidéo par l'intermédiaire du canal de transmission vidéo, la deuxième trame d'image de la vidéo étant acquises par le terminal opposé de l'appel vidéo par l'intermédiaire d'une caméra d'après le paramètre de demande ; et afficher la deuxième trame d'image de la vidéo. L'utilisation de la présente invention permet d'améliorer l'affichage de l'image vidéo dans un scénario dans lequel la largeur de bande globale pour la transmission des données vidéo reste inchangée.
PCT/CN2011/083572 2010-12-07 2011-12-06 Procédé d'appel vidéo et vidéophone WO2012075937A1 (fr)

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CN201010577255.6A CN102025965B (zh) 2010-12-07 2010-12-07 视频通话方法及可视电话

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CN103595948B (zh) * 2013-08-14 2017-08-25 郭洪斌 分辨率自适应的视频通话系统和方法
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CN101167365A (zh) * 2005-03-09 2008-04-23 高通股份有限公司 用于视频电话的感兴趣区域处理
CN101383969A (zh) * 2008-10-27 2009-03-11 杭州华三通信技术有限公司 放大图像局部区域的方法、编码器及主控模块
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CN102025965A (zh) * 2010-12-07 2011-04-20 华为终端有限公司 视频通话方法及可视电话

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