WO2012000372A1 - 图像传输显示的方法、装置和系统 - Google Patents

图像传输显示的方法、装置和系统 Download PDF

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Publication number
WO2012000372A1
WO2012000372A1 PCT/CN2011/075365 CN2011075365W WO2012000372A1 WO 2012000372 A1 WO2012000372 A1 WO 2012000372A1 CN 2011075365 W CN2011075365 W CN 2011075365W WO 2012000372 A1 WO2012000372 A1 WO 2012000372A1
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Prior art keywords
image
transmission
stream data
code stream
format information
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PCT/CN2011/075365
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English (en)
French (fr)
Inventor
李荣保
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华为终端有限公司
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Publication of WO2012000372A1 publication Critical patent/WO2012000372A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/164—Feedback from the receiver or from the transmission channel

Definitions

  • the present invention relates to the field of multimedia communications, and in particular, to a method, apparatus and system for image transmission and display. Background technique
  • conference television enables remote users to communicate "face-to-face" through communication networks.
  • a method for transmitting images of conference television is to transmit the source image without any scaling and using any channel.
  • This transmission method has the problem that the transmission terminal cannot communicate with each other, that is, the display terminal at the receiving end may not recognize the image, so that it cannot be played.
  • the format of the source image is 16:9. If the display format of the display terminal in the receiving end is 4:3, the display terminal with the display format of 4:3 cannot recognize the image, so that the image cannot be displayed.
  • Another way to transfer images is to scale the source image to the channel transfer, that is, to transfer the size of the channel. This type of transmission will produce black edges and affect the display effect.
  • the format of the source image is 16:9.
  • the format of the transmission channel is 4:3.
  • the source image Since the source image is compressed, it is transmitted from the transmission channel in a 4:3 format. If the format of the display terminal in the receiving end is 4:3, the format is 4. When the display terminal of 3 displays the image, the area where the image has no image above and below is filled in black to form a black border above and below the image.
  • the technical problem to be solved by the present invention is to provide a method, apparatus and system for image transmission display capable of recovering a display source image in a case where a source image and a transmission channel are inconsistent.
  • a method for image transmission display comprising:
  • a transmitting device for image transmission display comprising:
  • a compression unit configured to compress the source image into a transmission image that is consistent with the format of the transmission channel according to format information of the transmission channel;
  • a coding unit configured to encode the transmission image to generate image code stream data
  • a sending unit configured to send the image code stream data to the receiving end by using the transmission channel, where the image code stream data carries format information of the active image.
  • a method for image transmission display comprising:
  • the restored image is restored to the source image scale size and displayed according to the format information of the source image.
  • a receiving device for image transmission display comprising:
  • a receiving unit configured to receive image stream data compressed into a transmission image that is consistent with a transmission channel format size, where the image code stream data carries format information of the active image
  • a decoding unit configured to decode the image code stream data to generate the transmission image
  • a recovery unit configured to restore the restored image to a source image scale size according to format information of the source image and display the image.
  • a system for image transmission display comprising: a transmitting device and a receiving device,
  • the transmitting device is configured to compress the source image into a transmission image that is consistent with the format of the transmission channel according to format information of the transmission channel; encode the transmission image to generate image code stream data; and pass the image code stream data
  • the transmission channel is sent to the receiving device, and the image code stream data carries format information of an active image
  • the receiving device is configured to receive image code stream data that is sent by the sending device and compressed into a transmission image that is consistent with a format of the transmission channel, where the image code stream data carries format information of an active image;
  • the code stream data is decoded to generate the transmission image; according to the format information of the source image, the transmission image is restored to a source image scale size and displayed.
  • the format information of the source image is sent to the receiving end, and the receiving end restores the transmission image transmitted by the transmission channel in the transmission channel format to the format size of the source image according to the format information of the source image. Therefore, when the display terminal performs display so that the source image does not coincide with the transmission channel, the display source image can be restored.
  • FIG. 1 is a flowchart of a method for image transmission and display according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a transmitting apparatus for image transmission and display according to an embodiment of the present invention
  • FIG. 3 is a second flowchart of a method for image transmission and display according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a receiving apparatus for image transmission and display according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a system for image transmission and display according to an embodiment of the present invention
  • 6 is a flowchart of a method for image transmission and display according to Embodiment 2 of the present invention
  • FIG. 7 is a schematic diagram of a format in which a source image is compressed into a transmission channel according to Embodiment 2 of the present invention
  • FIG. 8 is a schematic diagram of a format for restoring a transmission image to a source image according to Embodiment 2 of the present invention
  • FIG. 9 is an image transmission display according to Embodiment 2 of the present invention
  • FIG. 10 is a schematic structural diagram of a receiving apparatus for image transmission and display according to Embodiment 2 of the present invention. detailed description
  • Embodiments of the present invention provide a method, apparatus, and system for image transmission display, which are capable of restoring a display source image in a case where a source image and a transmission channel are inconsistent.
  • An embodiment of the present invention provides a method for displaying an image transmission. As shown in FIG. 1 , the method includes: Step 101: Compress a source image into a transmission image that is consistent with a format of the transmission channel according to format information of the transmission channel.
  • the transmission channel is a channel having a certain protocol format for transmitting image code stream data of the source image to the receiving end, and the format information of the transmission channel includes at least a format of the transmission channel.
  • the image analyzer is used to analyze and store the format information of the source image, including at least the format size of the source image, and the format information of the transmission channel, including at least the format of the transmission channel.
  • the source image data and the format information of the source image are sent to the scaling engine, and the scaling engine compresses the source image data into a full-screen image corresponding to the format of the transmission channel according to the information of the transmission channel format.
  • Step 102 Encode the transmission image to generate image code stream data.
  • the transmitted image is further sent to the encoder to generate image stream data.
  • Step 103 Send the image code stream data to the receiving end by using the transmission channel, where the image is The code stream data carries format information of the active image.
  • the image stream data of the transmitted image is transmitted to the receiving end in the format of the transmission channel through the transmission channel in the network.
  • the format information of the source image may be transmitted to the receiving end by using, for example, a RTP (Real-time Transport Protocol) header.
  • the receiving end decodes the acquired image code stream data to generate a transmission image, and further restores the transmission image to an image having a size proportional to the source image according to the format information of the source image, and finally sends it to the display device of the user for display.
  • the embodiment of the present invention further provides a transmitting apparatus for image transmission and display.
  • the apparatus includes: a compression unit 11, an encoding unit 12, and a transmitting unit 13.
  • the compression unit 11 is configured to compress the source image into a transmission image that is consistent with the format of the transmission channel according to the format information of the transmission channel.
  • the encoding unit 12 is configured to encode the transmission image to generate image code stream data, and the sending unit 13 And for transmitting the image code stream data to the receiving end by using the transmission channel, where the image code stream data carries format information of the active image.
  • An embodiment of the present invention further provides a method for displaying an image transmission. As shown in FIG. 3, the method includes:
  • Step 201 Receive image code stream data that is compressed into a transmission image that is consistent with a format of a transmission channel, where the image code stream data carries format information of the active image.
  • the image code stream data sent by the transmitting end is received, and the image code stream data includes format information of the source image, and the format information of the source image may be transmitted by, for example, being carried in the RTP header.
  • Step 202 Decode the image code stream data to generate a transmission image.
  • the decoder decodes the image stream data to generate a transmission image having the same format as the transmission channel.
  • Step 203 Restore the restored image to a source image scale size according to format information of the source image and display the image.
  • the obtained image code stream data is decoded to generate a transmission image, and the transmission image is further restored to an image having a size proportional to the source image according to the format information of the source image, and finally sent to the display device of the user for display.
  • the embodiment of the invention further provides a receiving device for image transmission display. As shown in FIG. 4, the device comprises: a receiving unit 21, a decoding unit 22 and a restoring unit 23.
  • the receiving unit 21 is configured to receive image code stream data that is compressed into a transmission image that is consistent with the format of the transmission channel, where the image code stream data carries format information of the active image; and a decoding unit 22, configured to: The data decoding generates a transmission image; the recovery unit 23 is configured to restore the transmission image to a source image scale size according to the format information of the source image and display the image.
  • the embodiment of the present invention further provides a system for image transmission and display. As shown in FIG. 5, the system includes: a transmitting device 1 and a receiving device 2.
  • the transmitting device 1 is configured to compress a source image into a transmission image that is consistent with a format of a transmission channel according to format information of a transmission channel; encode the transmission image to generate image code stream data, and send the image stream data to the
  • the image code stream data carries the format information of the active image
  • the receiving device 2 is configured to receive the image code stream data sent by the transmitting device 1 and compressed into a transmission image having the same format as the transmission channel format,
  • the image code stream data carries format information of the active image; and according to the format information of the source image, the restored image is restored to a source image scale size and displayed.
  • the transmitting device 1 includes: a compression unit 11, an encoding unit 12, and a transmitting unit 13.
  • the receiving device 2 includes: a receiving unit 21, a decoding unit 22, and a restoring unit 23.
  • the source image data is compressed into a transmission image conforming to the transmission channel format and encoded into image code stream data
  • the image code stream data of the transmission image carrying the format information of the active image is further further Transmitting to the receiving end through the transmission channel, the receiving end decodes the image code stream data transmitted by the transmission channel into a transmission image, and restores the transmission image to the size of the source image according to the format information of the source image, thereby displaying on the display terminal.
  • the display source image can be restored such that the aspect ratio of the image seen at the receiving end is completely identical to the aspect ratio of the image transmitted by the transmitting end.
  • An embodiment of the present invention provides a method for image transmission and display.
  • the input source image format is 720P (1280 x 720)
  • the transmission channel code is H263CIF (Common Intermediate Format, standardized image format) (352 ⁇ 288), as shown in Figure 6, the method includes:
  • Step 301 Obtain format information of the transmission channel and format information of the source image.
  • Formatting the input source image, that is, format information of the source image, is analyzed and stored by the image analyzer, and the format of the transmission channel, that is, the format information of the transmission channel is analyzed and stored, in this embodiment, the source image
  • the format is 720 ⁇ ( 1280 720 ); the format of this transmission channel is CIF ( 352 x 288 ).
  • Step 302 compress the source image into a transmission image that is consistent with the format of the transmission channel according to the format information of the transmission channel.
  • the source image data and the format information of the source image are sent to the scaling engine, and the scaling engine compresses the source image data (720 ⁇ ) into a full channel according to the format information of the transmission channel and the format information of the source image.
  • Step 303 Encode the transmission image to generate image code stream data.
  • the encoder encodes the transmitted image to generate a code stream for transmission to a transmission channel in the network for transmission.
  • Step 304 Send image code stream data of the transmission image, where the image code stream data carries format information of the source image;
  • the image code stream data of the transmitted image is transmitted through a transmission channel in the network.
  • the format information of the source image may be transmitted to the receiving end by, for example, being carried in the RTP header.
  • Step 305 Receive image code stream data that is compressed into a transmission image that is consistent with a transmission channel format size, where the image code stream data carries format information of the active image.
  • the receiving end acquires image code stream data carrying format information of the active image from the transmission channel of the network.
  • Step 306 Decode the image code stream data to generate a transmission image.
  • the receiving end decodes the obtained image code stream data to generate a transmission image in the format of CIF (consistent with the transmission channel format size).
  • the encoder converts the image proportionally, it can be inversely proportional
  • the decoded decoder is decoded.
  • Step 307 Parse the format information of the source image from the image code stream data of the decoded transmission image
  • the image analyzer parses the format information of the source image carried by the image code stream data of the decoded transmission image.
  • Step 308 Restore the transmitted image to the source image scale size according to the format information of the source image and display it.
  • the image analyzer at the receiving end analyzes and obtains the format information of the source image, and the scaling engine restores the transmitted image to an image having the same size as the source image according to the format information of the source image obtained by the analysis, and finally sends it to the display device of the user for display.
  • the CIF image transmitted in the format CIF channel is restored to a source image of the format 720P.
  • the embodiment of the present invention further provides an apparatus for transmitting image display, as shown in FIG. 9, which includes: a compression unit 11, an encoding unit 12, a transmitting unit 13, and an obtaining unit 14.
  • the obtaining unit 14 is configured to obtain format information of the transmission channel from the transmission channel, and obtain format information of the source image from the source image, where the function of the unit can be implemented by an image analyzer, that is, the image analyzer analyzes and stores the source image. Format information and format information of the transmission channel; the compression unit 11 is configured to compress the source image into a transmission image that is consistent with the format of the transmission channel according to format information of the transmission channel, and the function of the unit is implemented by a scaling engine, that is, a scaling engine
  • the source image is compressed into a channel format size transmission image according to the format information of the transmission channel;
  • the encoding unit 12 is configured to encode the transmission image to generate image code stream data; and the sending unit 12 is configured to pass the image code stream data
  • the transmission channel is sent to the receiving end, and the image code stream data carries format information of the active image, and the image code stream data carries format information of the active image, wherein the function of the unit coding is implemented by an encoder.
  • the embodiment of the invention further provides a receiving device for image transmission display.
  • the device comprises: a receiving unit 21, a decoding unit 22, a parsing unit 24 and a restoring unit 23.
  • the receiving unit 21 is configured to receive image code stream data that is compressed into a transmission image that is consistent with the format of the transmission channel, where the image code stream data carries format information of the active image; and the decoding unit 22 uses Decoding the image code stream data to generate a transmission image, since the encoder scales the image, the function of the unit is implemented by a decoder that can be inversely scaled with the encoder; the parsing unit 24 is configured to The format information of the source image is parsed in the image code stream data of the decoded transmission image, and the function of the unit may be implemented by an image analyzer; the recovery unit 23 is configured to: according to the format information of the source image, The transmission image is restored to the source image scale and displayed, and the function of the unit can be implemented by the scaling engine, that is, the scaling engine restores the transmission image to an image that is consistent with the source image according to the format information of the source image, and finally sends the image to the user.
  • the display device is displayed.
  • the source image data is compressed into a transmission image conforming to the transmission channel format and encoded into image code stream data, and the image code stream data of the transmission image carrying the format information of the active image is further further.
  • the transmission channel transmits the image stream data transmitted by the transmission channel to the transmission image, and the transmission image transmitted by the transmission channel is restored to the source image according to the parsed format information of the source image.
  • the size is thus displayed on the display terminal, and in the case where the source image is inconsistent with the transmission channel, the display source image can be restored, and further, due to the aspect ratio of the image seen at the receiving end and the image transmitted by the transmitting end
  • the aspect ratio is completely the same, so in the case where a display terminal of a wide screen (for example, 16:9) and a narrow screen (for example, 4:3) coexist, if the source image is in a widescreen format, a display terminal in a narrow screen can be realized. Display the ratio of widescreen, which can make the display terminal of narrow screen better experience the visual effect brought by widescreen fruit.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

本发明实施例公开了一种图像传输显示的方法、装置和系统，涉及通信技术领域，能够在源图像与传输通道不一致的情况下，恢复显示源图像。一种图像传输显示的方法，包括：根据传输通道格式信息将源图像压缩为与所述传输通道格式大小一致的传输图像；将所述传输图像编码生成图像码流数据；将所述图像码流数据通过所述传输通道发送至接收端，所述图像码流数据携带有源图像的格式信息。本发明应用于多媒体通信。

Description

图像传输显示的方法、 装置和系统 本申请要求于 2010年 6月 28日提交中国专利局、 申请号为
201010212964.4, 发明名称为"图像传输显示的方法、 装置和系统"的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及多媒体通信领域， 尤其涉及一种图像传输显示的方法、 装置 和系统。 背景技术
会议电视作为多媒体通信的一种应用， 使得远程用户能够通过通信网络 实现 "面对面" 的交流。
目前， 会议电视的一种传输图像的方式是将源图像不经过缩放釆用任意 通道传送， 这种传输方式存在无法互通的问题， 即接收端的显示终端可能无 法识别图像， 以至于无法播放， 以源图像的格式为 16: 9为例， 若接收端中 有的显示终端的显示格式为 4: 3 , 则显示格式为 4: 3的显示终端则无法识别 该图像， 以至于无法显示图像。 另一种传输图像的方式是将源图像等比例缩 放到通道传送， 即釆用通道的大小传送， 这种传输方式存在会产生黑边， 影 响显示效果， 以源图像的格式为 16: 9 , 传输通道的格式为 4: 3为例， 由于 对源图像进行压缩了处理， 从传输通道以 4: 3的格式传输， 若接收端中有的 显示终端的格式为 4: 3 , 而格式为 4: 3的显示终端在显示该图像时， 会将图 像上下没有图像的区域填黑， 形成图像上方和下方的黑边。
在实现上述图像传输的过程中， 发明人发现现有技术至少存在以下问题: 由于接收端的多个显示终端中， 有部分可能是陈旧的显示终端， 只能显示某 一格式的图像， 而针对其它格式的图像， 则无法正常显示。 发明内容
本发明所要解决的技术问题在于提供一种图像传输显示的方法、 装置和 系统， 能够在源图像与传输通道不一致的情况下， 恢复显示源图像。
为解决上述技术问题， 本发明实施例釆用如下技术方案：
一种图像传输显示的方法， 包括：
根据传输通道格式信息将源图像压缩为与所述传输通道格式大小一致的 传输图像；
将所述传输图像编码生成图像码流数据；
将所述图像码流数据通过所述传输通道发送至接收端， 所述图像码流数 据携带有源图像的格式信息。
一种图像传输显示的发送装置， 包括：
压缩单元， 用于根据传输通道的格式信息将源图像压缩为与所述传输通 道格式大小一致的传输图像；
编码单元， 用于将所述传输图像编码生成图像码流数据；
发送单元， 用于将所述图像码流数据通过所述传输通道发送至接收端， 所述图像码流数据携带有源图像的格式信息。
一种图像传输显示的方法， 包括：
接收压缩为与传输通道格式大小一致的传输图像的图像码流数据， 所述 图像码流数据携带有源图像的格式信息；
将所述图像码流数据解码生成所述传输图像；
根据所述源图像的格式信息 , 将所述传输图像的恢复为源图像比例大小 并显示。
一种图像传输显示的接收装置， 包括：
接收单元， 用于接收压缩为与传输通道格式大小一致的传输图像的图像 码流数据， 所述图像码流数据携带有源图像的格式信息；
解码单元， 用于将所述图像码流数据解码生成所述传输图像； 恢复单元， 用于根据所述源图像的格式信息， 将所述传输图像的恢复为 源图像比例大小并显示。
一种图像传输显示的系统， 包括： 发送装置和接收装置，
所述发送装置用于根据传输通道的格式信息将源图像压缩为与所述传输 通道格式大小一致的传输图像； 将所述传输图像编码生成图像码流数据； 并 将所述图像码流数据通过所述传输通道发送至所述接收装置， 所述图像码流 数据携带有源图像的格式信息；
所述接收装置用于接收所述发送装置发送的压缩为与所述传输通道格式 大小一致的传输图像的图像码流数据， 所述图像码流数据携带有源图像的格 式信息； 将所述图像码流数据解码生成所述传输图像； 根据所述源图像的格 式信息， 将所述传输图像的恢复为源图像比例大小并显示。 在本实施例的技术方案中， 通过将源图像的格式信息发送到接收端， 接 收端根据该源图像的格式信息将由传输通道以传输通道格式传输过来的传输 图像恢复为源图像的格式大小， 从而在显示终端进行显示， 使源图像与传输 通道不一致的情况下， 能够恢复显示源图像。 附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中 所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本 发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性 的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明实施例一图像传输显示的方法流程图之一；
图 2为本发明实施例一图像传输显示的发送装置的结构示意图； 图 3为本发明实施例一图像传输显示的方法流程图之二；
图 4为本发明实施例一图像传输显示的接收装置的结构示意图； 图 5为本发明实施例一图像传输显示的系统的结构示意图； 图 6为本发明实施例二图像传输显示的方法流程图；
图 7为本发明实施例二源图像压缩为传输通道的格式的示意图； 图 8为本发明实施例二将传输图像恢复为源图像的格式的示意图； 图 9为本发明实施例二图像传输显示的发送装置的结构示意图； 图 10为本发明实施例二图像传输显示的接收装置的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实施例， 而不是 全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创 造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
本发明实施例提供一种图像传输显示的方法、 装置和系统， 能够在源图 像与传输通道不一致的情况下， 恢复显示源图像。
实施例一
本发明实施例提供一种图像传输显示的方法， 如图 1所示， 该方法包括： 步骤 101、根据传输通道的格式信息将源图像压缩为与所述传输通道格式 大小一致的传输图像；
其中， 所述传输通道为将源图像的图像码流数据传输到接收端的具有某 一协议格式的通道， 所述传输通道的格式信息至少包括传输通道的格式。
首先， 利用图像分析器把源图像的格式信息， 至少包括源图像的格式大 小， 以及传输通道的格式信息， 至少包括传输通道的格式大小， 分析出来并 存储。 接下来， 将源图像数据和源图像的格式信息送入缩放引擎， 缩放引擎 根据传输通道格式的信息， 把源图像数据满屏压缩成与传输通道格式大小一 致的传输图像。
步骤 102、 将所述传输图像编码生成图像码流数据；
将传输图像进一步送给编码器编码生成图像码流数据。
步骤 103、将所述图像码流数据通过所述传输通道发送至接收端， 所述图 像码流数据携带有源图像的格式信息。
将传输图像的图像码流数据通过网络中的传输通道以传输通道的格式发 送到接收端。 其中， 源图像的格式信息可以釆用例如携带在 RTP ( Real-time Transport Protocol, 实时传送协议）头中的方式传送到接收端。 接收端将获取 到的图像码流数据解码生成传输图像， 并进一步根据源图像的格式信息将传 输图像恢复成与源图像比例大小一致的图像， 最后送到用户的显示设备显示 出来。
本发明实施例还提供一种图像传输显示的发送装置， 如图 2 所示， 该包 括： 压缩单元 11、 编码单元 12和发送单元 13。
压缩单元 11 , 用于根据传输通道的格式信息将源图像压缩为与所述传输 通道格式大小一致的传输图像； 编码单元 12, 用于将所述传输图像编码生成 图像码流数据， 发送单元 13 , 用于将所述图像码流数据通过所述传输通道发 送至接收端 , 所述图像码流数据携带有源图像的格式信息。
本发明实施例还提供一种图像传输显示的方法， 如图 3 所示， 该方法包 括：
步骤 201、接收压缩为与传输通道格式大小一致的传输图像的图像码流数 据， 所述图像码流数据携带有源图像的格式信息；
接收发送端发送的图像码流数据， 该图像码流数据包含源图像的格式信 息， 源图像的格式信息可以釆用例如携带在 RTP头中的方式传送。
步骤 202、 将所述图像码流数据解码生成传输图像；
解码器将图像码流数据解码生成传输图像， 该传输图像的格式与传输通 道格式相同。
步骤 203、根据所述源图像的格式信息， 将所述传输图像的恢复为源图像 比例大小并显示。
将获取到的图像码流数据解码生成传输图像， 并进一步根据源图像的格 式信息将传输图像完成恢复成与源图像比例大小一致的图像， 最后送到用户 的显示设备显示出来。 本发明实施例还提供一种图像传输显示的接收装置， 如图 4 所示， 该装 置包括： 接收单元 21、 解码单元 22和恢复单元 23。
接收单元 21 , 用于接收压缩为与传输通道格式大小一致的传输图像的图 像码流数据， 所述图像码流数据携带有源图像的格式信息； 解码单元 22, 用 于将所述图像码流数据解码生成传输图像； 恢复单元 23 , 用于根据所述源图 像的格式信息， 将所述传输图像的恢复为源图像比例大小并显示。
本发明实施例还提供一种图像传输显示的系统， 如图 5 所示， 该系统包 括： 发送装置 1和接收装置 2。
所述发送装置 1 用于根据传输通道的格式信息将源图像压缩为与传输通 道格式大小一致的传输图像； 将所述传输图像编码生成图像码流数据， 并通 过所述传输通道发送至所述接收装置 2,所述图像码流数据携带有源图像的格 式信息； 所述接收装置 2用于接收所述发送装置 1发送的压缩为与传输通道 格式大小一致的传输图像的图像码流数据， 所述图像码流数据携带有源图像 的格式信息； 根据所述源图像的格式信息， 将所述传输图像的恢复为源图像 比例大小并显示。
其中， 所述发送装置 1包括： 压缩单元 11、 编码单元 12和发送单元 13。 所述接收装置 2包括： 接收单元 21、 解码单元 22和恢复单元 23。
在本实施例的技术方案中， 通过将源图像数据压缩为与传输通道格式一 致的传输图像并编码为图像码流数据， 并进一步将携带有源图像的格式信息 的传输图像的图像码流数据通过传输通道传输到接收端， 接收端将由传输通 道传输过来的该图像码流数据解码为传输图像， 并根据源图像的格式信息把 传输图像恢复为源图像的大小， 从而在显示终端进行显示， 在源图像与传输 通道不一致的情况下， 能够恢复显示源图像， 使得在接收端看到的图像的高 宽比与发送端发送的图像的高宽比完全一致。
实施例二
本发明实施例提供一种图像传输显示的方法， 在本实施例中， 以输入的 源图像格式为 720P ( 1280 x 720 ) , 传输通道编码 H263CIF ( Common Intermediate Format, 标准化图像格式）（ 352 χ 288 )为例， 如图 6所示， 该方 法包括：
步骤 301、 获取传输通道的格式信息和源图像的格式信息；
把输入的源图像的格式， 即源图像的格式信息通过图像分析器分析出来 并存储， 并且把传输通道的格式， 即传输通道的格式信息分析出来并存储， 在本实施例中， 源图像的格式为 720Ρ ( 1280 720 ); 该传输通道的格式为 CIF ( 352 x 288 )。
步骤 302、根据传输通道的格式信息将源图像压缩为与传输通道格式大小 一致的传输图像；
如图 7 所示， 将源图像数据和源图像的格式信息送入缩放引擎， 缩放引 擎根据传输通道的格式信息和源图像的格式信息， 把源图像数据（720Ρ ) 满 屏压缩成与传输通道格式（CIF )—致的传输图像并进一步送给编码器。
步骤 303、 将所述传输图像编码生成图像码流数据；
编码器将传输图像编码生成码流， 以便于送到网络中的传输通道进行传 输。
步骤 304、发送所述传输图像的图像码流数据， 所述图像码流数据携带有 源图像的格式信息；
将传输图像的图像码流数据通过网络中的传输通道发送。 其中， 源图像 的格式信息可以釆用例如携带在 RTP头中的方式传送到接收端。
步骤 305、接收压缩为与传输通道格式大小一致的传输图像的图像码流数 据， 所述图像码流数据携带有源图像的格式信息；
接收端从网络的传输通道获取携带有源图像的格式信息的图像码流数 据。
步骤 306、 将所述图像码流数据解码生成传输图像；
接收端将获取到的图像码流数据解码生成格式为 CIF(与传输通道格式大 小一致） 的传输图像。
其中， 由于编码器把图像按比例变换编码， 同时用配套的可以反比例变 换的解码器解码。
步骤 307、从所述解码后的传输图像的图像码流数据中解析出源图像的格 式信息；
图像分析器解析出解码后的传输图像的图像码流数据携带的源图像的格 式信息。
步骤 308、根据所述源图像的格式信息， 将所述传输图像的恢复为源图像 比例大小并显示。
接收端的图像分析器分析得到源图像的格式信息并存储， 缩放引擎根据 分析得到的源图像的格式信息把传输图像恢复成与源图像比例大小一致的图 像， 最后送到用户的显示设备显示出来。 如图 8所示， 把格式为 CIF通道传 输的 CIF图像恢复成格式为 720P的源图像。
本发明实施例还提供一种图像传输显示的发送装置， 如图 9 所示， 该包 括： 压缩单元 11、 编码单元 12、 发送单元 13和获取单元 14。
其中， 获取单元 14, 用于从传输通道获取传输通道的格式信息， 以及从 源图像获取源图像的格式信息， 该单元的功能可以通过图像分析器实现， 即 图像分析器分析并存储源图像的格式信息和传输通道的格式信息； 压缩单元 11 , 用于根据传输通道的格式信息将源图像压缩为与所述传输通道格式大小 一致的传输图像， 该单元的功能通过缩放引擎实现， 即缩放引擎根据传输通 道的格式信息将源图像压缩为通道格式大小的传输图像； 编码单元 12, 用于 将所述传输图像编码生成图像码流数据； 发送单元 12, 用于将所述图像码流 数据通过所述传输通道发送至接收端， 所述图像码流数据携带有源图像的格 式信息， 所述图像码流数据携带有源图像的格式信息， 其中， 该单元编码的 功能由编码器实现。
本发明实施例还提供一种图像传输显示的接收装置， 如图 10所示， 该装 置包括： 接收单元 21、 解码单元 22、 解析单元 24和恢复单元 23。
接收单元 21 , 用于接收压缩为与传输通道格式大小一致的传输图像的图 像码流数据， 所述图像码流数据携带有源图像的格式信息； 解码单元 22, 用 于将所述图像码流数据解码生成传输图像， 由于编码器把图像按比例变换编 码， 该单元的功能由与编码器同时用配套的可以反比例变换的解码器实现； 解析单元 24 , 用于从所述解码后的传输图像的图像码流数据中解析出所述源 图像的格式信息， 该单元的功能可以由图像分析器实现； 恢复单元 23 , 用于 根据所述源图像的格式信息， 将所述传输图像恢复为源图像比例大小并显示， 该单元的功能可以由缩放引擎实现， 即缩放引擎根据源图像的格式信息把传 输图像恢复成与源图像比例大小一致的图像， 最后送到用户的显示设备显示 出来。
在本实施例的技术方案中， 通过将源图像数据压缩为与传输通道格式一 致的传输图像并编码为图像码流数据， 并进一步将携带有源图像的格式信息 的传输图像的图像码流数据通过传输通道传输到接收端， 接收端将由传输通 道传输过来的该图像码流数据解码为传输图像， 并根据解析出的该源图像的 格式信息将由传输通道传输过来的传输图像恢复为源图像的大小， 从而在显 示终端进行显示， 在源图像与传输通道不一致的情况下， 能够恢复显示源图 像， 并且， 进一步地， 由于在接收端看到的图像的高宽比与发送端发送的图 像的高宽比完全一致， 因此在宽屏（例如： 16: 9 )和窄屏（例如： 4: 3 ) 的 显示终端共存的情况下， 若源图像为宽屏的格式， 能够实现在窄屏的显示终 端显示宽屏的比例， 可以使窄屏的显示终端更好地体验宽屏带来的视觉效果。
通过以上的实施方式的描述， 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件的方式来实现， 当然也可以通过硬件， 但 很多情况下前者是更佳的实施方式。 基于这样的理解， 本发明的技术方案本 质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来， 该 计算机软件产品存储在可读取的存储介质中， 如计算机的软盘， 硬盘或光盘 等， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述的方法。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应以所述权利要求的保护范围为准。

Claims

权 利 要求 书
1、 一种图像传输显示的方法， 其特征在于， 包括：
根据传输通道格式信息将源图像压缩为与所述传输通道格式大小一致的 传输图像；
将所述传输图像编码生成图像码流数据；
将所述图像码流数据通过所述传输通道发送至接收端， 所述图像码流数 据携带有源图像的格式信息。
2、 根据权利要求 1所述的方法， 其特征在于， 在所述根据传输通道的格 式信息将源图像压缩为通道格式大小的传输图像之前， 还包括：
获取传输通道的格式信息和源图像的格式信息。
3、 一种图像传输显示的发送装置， 其特征在于， 包括：
压缩单元， 用于根据传输通道的格式信息将源图像压缩为与所述传输通 道格式大小一致的传输图像；
编码单元， 用于将所述传输图像编码生成图像码流数据；
发送单元， 用于将所述图像码流数据通过所述传输通道发送至接收端， 所述图像码流数据携带有源图像的格式信息。
4、 根据权利要求 3所述的发送装置， 其特征在于， 还包括：
获取单元， 用于获取传输通道的格式信息和源图像的格式信息。
5、 一种图像传输显示的方法， 其特征在于， 包括：
接收压缩为与传输通道格式大小一致的传输图像的图像码流数据， 所述 图像码流数据携带有源图像的格式信息；
将所述图像码流数据解码生成所述传输图像；
根据所述源图像的格式信息 , 将所述传输图像的恢复为源图像比例大小 并显示。
6、 根据权利要求 5所述的方法， 其特征在于， 在将所述图像码流数据解 码生成所述传输图像之后还包括：
从所述解码后的传输图像的图像码流数据中解析出所述源图像的格式信 息。
7、 一种图像传输显示的接收装置， 其特征在于， 包括：
接收单元， 用于接收压缩为与传输通道格式大小一致的传输图像的图像 码流数据， 所述图像码流数据携带有源图像的格式信息；
解码单元， 用于将所述图像码流数据解码生成所述传输图像；
恢复单元， 用于根据所述源图像的格式信息， 将所述传输图像的恢复为 源图像比例大小并显示。
8、 根据权利要求 7所述的接收装置， 其特征在于， 还包括：
解析单元， 用于从所述解码后的传输图像的图像码流数据中解析出所述 源图像的格式信息。
9、 一种图像传输显示的系统， 其特征在于， 包括： 发送装置和接收装置， 所述发送装置用于根据传输通道的格式信息将源图像压缩为与所述传输 通道格式大小一致的传输图像； 将所述传输图像编码生成图像码流数据； 并 将所述图像码流数据通过所述传输通道发送至所述接收装置， 所述图像码流 数据携带有源图像的格式信息；
所述接收装置用于接收所述发送装置发送的压缩为与所述传输通道格式 大小一致的传输图像的图像码流数据， 所述图像码流数据携带有源图像的格 式信息； 将所述图像码流数据解码生成所述传输图像； 根据所述源图像的格 式信息， 将所述传输图像的恢复为源图像比例大小并显示。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231491A (en) * 1988-11-28 1993-07-27 Telefunken Fernseh Und Rundfunk Gmbh Television system providing wide aspect ratio image information compatible with a standard aspect ratio format
US6560280B1 (en) * 1998-02-02 2003-05-06 Vcon Ltd. Video transmission system
CN101340546A (zh) * 2007-07-04 2009-01-07 广达电脑股份有限公司 高分辨率视频会议系统
CN101888551A (zh) * 2010-06-28 2010-11-17 华为终端有限公司 图像传输显示的方法、装置和系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW335241U (en) * 1992-11-30 1998-06-21 Thomson Consumer Electronics A video display system
JP3125552B2 (ja) * 1993-12-28 2001-01-22 三菱電機株式会社 テレビ会議システム
KR100503794B1 (ko) * 2002-10-30 2005-07-26 삼성전자주식회사 화면 비율 제어 장치 및 방법과 그에 적합한 리모콘
CN100525427C (zh) * 2005-12-29 2009-08-05 宏碁股份有限公司 可调式图像缩放系统与图像长宽比的操控方法
KR100720871B1 (ko) * 2006-06-20 2007-05-23 삼성전자주식회사 휴대용 단말기의 저 왜곡 표시 장치 및 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231491A (en) * 1988-11-28 1993-07-27 Telefunken Fernseh Und Rundfunk Gmbh Television system providing wide aspect ratio image information compatible with a standard aspect ratio format
US6560280B1 (en) * 1998-02-02 2003-05-06 Vcon Ltd. Video transmission system
CN101340546A (zh) * 2007-07-04 2009-01-07 广达电脑股份有限公司 高分辨率视频会议系统
CN101888551A (zh) * 2010-06-28 2010-11-17 华为终端有限公司 图像传输显示的方法、装置和系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EI, JUFENG.: "An Effective Method to Improve Image Impression in Real-time Low-capability Wireless Channel.", GUIDANCE & FUZE., vol. 30, no. 4, December 2009 (2009-12-01), pages 49 - 53 *

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