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H264-based video data repairing method and transmission data end

A technology of video data transmission and video data, which is applied in the repair method and the field of data transmission, and can solve problems such as repair failure, key frame repair solution time extension, etc.

Active Publication Date: 2018-04-03
LEADCORE TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a repair method and transmission data end based on H.264 video data, to solve the problem of repair failure caused by time extension in the key frame repair scheme

Method used

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  • H264-based video data repairing method and transmission data end
  • H264-based video data repairing method and transmission data end
  • H264-based video data repairing method and transmission data end

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Embodiment Construction

[0093] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0094] The embodiment of the present invention provides a method for repairing video data based on H.264, which is used to repair phenomena such as blurred screens and mosaics that occur during the transmission of video data based on H.264. Each frame of the video data The image data can be divided into a plurality of strip data based on H.264, and each strip data in the plurality of strip data has a serial number, and each frame of image data in the video data is The way of dividing the data of multiple stripes...

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Abstract

The invention provides an H264-based video data repairing method and a transmission data end. The method comprises the following steps of when data in one frame of image data are wrong or lost, recording the number of wrong or lost strip data in the frame of the image data, and setting a plurality of priorities for the wrong or lost strip data; according to the plurality of priorities, repairing the wrong or lost strip data from high to low in priority. In this way, strip data of high priority are required firstly, and then the subjective feeling of a user can be rapidly improved. In addition,only partial strip data in one frame of image is coded in an intra-frame coding mode for each time. Therefore, the image of each to-be-repaired frame is not large, while the subjective feeling of theuser can be rapidly improved.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to an H.264-based video data repair method and a data terminal for transmission. Background technique [0002] In the H.264 video transmission of the wireless network, bit errors and data packet loss often occur, which will cause abnormal phenomena such as blurred screens and mosaics on the video display at the receiving end. The existing common solution is that the receiving end sends a request to the sending end, requiring the sending end to resend a key frame immediately to recover the damaged image. [0003] The key frame is to perform intra-frame encoding on the entire image, and the intra-frame encoding method does not refer to previous images, so the image can be restored immediately. However, intra-frame coding will cause a very large amount of data in the key frame, which will increase the transmission delay when the wireless network bandwidth is limited, and also increase...

Claims

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Application Information

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IPC IPC(8): H04N19/66H04N19/503H04N19/593
CPCH04N19/503H04N19/593H04N19/66
Inventor 祝晓平
Owner LEADCORE TECH
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