Error control system and method of video coding

An error control and video coding technology, applied in the field of video coding, to achieve optimal compression efficiency and avoid error drift

Inactive Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to provide a video coding error control system a

Method used

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  • Error control system and method of video coding
  • Error control system and method of video coding
  • Error control system and method of video coding

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Embodiment Construction

[0047] Specific embodiments of the present invention are described below in conjunction with accompanying drawing:

[0048] An error control system for video coding in the present invention includes an encoder and a decoder, wherein the encoder includes a base layer encoding device and an enhancement layer encoding device, and the decoder includes a base layer decoding device and an enhancement layer decoding device. In the actual encoder and There may be multiple enhancement layers in the decoder, and this embodiment only uses one enhancement layer as an example for illustration. The specific structure of the system is shown in Figure 1. The basic layer coding device includes: a first coder subtraction device 101; a first coder output processing device composed of a first coder transformation device 102 and a first coder quantization device 103 ; first encoder inverse quantization means 104, first encoder inverse transform means 105, first encoder addition means 106, first en...

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Abstract

The provided error control method for video coding comprises: adding a mobile shift controller, controlling the leakage factor according to local message, and adjusting the cutting-out level on code flow of reinforced layer to synchronize the coder/decoder for optimal compression performance. Wherein, the predicted signal acquired by the shift controller can be used by coder and decoder to control the shift and avoid the error shift of decoder.

Description

technical field [0001] The invention relates to the field of video coding, in particular to a video coding error control system and method. Background technique [0002] As a key technology in the video streaming framework of H.264 and MPEG-4 standards, FGS (Fine Granularity Scalability) video coding can realize arbitrary clipping of the video code stream through post-coding processing, and the resulting code Streams can adapt to fluctuations in network bandwidth. [0003] In FGS video coding, motion compensation, as a technique to improve coding efficiency and reduce bandwidth requirements, first subtracts the previously transmitted frame from the current frame, so that only the difference or residual value is encoded and transmitted, and there is no change in the frame The content of the frame will not be encoded and transmitted, so as to achieve a higher compression ratio by estimating the motion of the content of the previous frame and compensating the motion value. Th...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N7/26H04N19/89
CPCH04N19/00781H04N19/00278H04N19/00303H04N19/00442H04N19/00139H04N19/00024H04N19/00545H04N19/105H04N19/136H04N19/176H04N19/182H04N19/34H04N19/46H04N19/61
Inventor史蒂芬卡普马蒂尔斯韦恩熊联欢
OwnerHUAWEI TECH CO LTD