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High-robustness video encoding and decoding method and system

A highly robust video coding technology, applied in the field of video coding, can solve problems such as sudden deterioration of image quality, and achieve the effect of medium and long-distance transmission

Active Publication Date: 2014-07-30
SHENZHEN CRYSTAL VIDEO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a highly robust video encoding and decoding method and system for the above-mentioned defect in the prior art that the image quality will suddenly deteriorate when the channel condition deteriorates, even if the channel condition changes Poor, image quality does not suddenly deteriorate

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Embodiment 1

[0055] Figure 4 It is a flowchart of Embodiment 1 of the highly robust video decoding method of the present invention, and the highly robust video decoding method includes:

[0056] C. Buffer the uncompressed part of the video code stream, and divide it into multiple image blocks;

[0057] D. Perform the following processing on each image block separately:

[0058] D1. Decompose the image block in units of pixels, and extract the position information of each pixel;

[0059] D2. Reconstruct a new image block according to the position information of each pixel.

[0060] Figure 5 is a logic diagram of Embodiment 1 of the highly robust video coding system of the present invention, the highly robust video coding system of this embodiment includes a first division module 10 and a first processing module 20, wherein the first processing module 20 It includes a first allocation unit 21 , a first decomposition unit 22 and a first reconstruction unit 23 . Wherein, the first divis...

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Abstract

The invention discloses a high-robustness video encoding and decoding method and system. The high-robustness video encoding and decoding method includes the steps that (1) a part of uncompressed video bitstreams are buffered and divided into multiple image blocks; (2) each image block is processed in following steps that weight values are distributed to pixels in the image blocks according to visual important attribute values of the pixels in the image blocks, the image blocks are decomposed in pixel, new image blocks are reconstructed, and pixels with the highest weight value in the new image blocks are distributed in a dispersion mode. By means of the technical scheme, even if a wireless transmission channel is aggravated, the pixels with the highest weight value distributed in a dispersion mode, so that quality of images received from a receiving end reduces, and the images can not be aggravated or interrupted suddenly. Besides, video transmission delay is shorter than 20 ms.

Description

technical field [0001] The present invention relates to the field of video encoding, in particular to a highly robust video encoding and decoding method and system. Background technique [0002] In UAV real-time video shooting control system, professional film and television shooting monitoring system, campus video distribution system and other systems, after the camera transmits the video data captured by the transmitter to the transmitter, the transmitter encodes the video data, and then passes the wireless mode sent to the receiver. After receiving the video data, the receiver decodes it and outputs it. [0003] The purpose of video coding is to express video data compactly and accurately. At present, video compression is often used to reduce the size of video data. However, the signal-to-noise ratio and channel capacity of the wireless transmission channel change dynamically. When it is small, the image received by the receiving end will suddenly deteriorate, or even ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/132
Inventor 姜勇谢双勇童鹰
Owner SHENZHEN CRYSTAL VIDEO TECH