Method and system for estimating compression encoding

A technology of compression coding and prediction mode, applied in the field of prediction compression coding method and system, can solve problems such as inconvenience of use, and achieve the effect of good coding efficiency

Inactive Publication Date: 2008-06-11
HUAWEI TECH CO LTD +1
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0033] Therefore, in order to ensure that the first and second types of predictive compression coding have good coding efficiency, different methods need to be selected according to different application situations in the prior art, causing inconvenience in use.

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  • Method and system for estimating compression encoding
  • Method and system for estimating compression encoding
  • Method and system for estimating compression encoding

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0056] The predictive coding method provided by the embodiment of the present invention includes the following steps:

[0057] A, by analyzing the characteristic information of each component, select the first component;

[0058] B. In the same block division type, analyze the block division and prediction mode combination of the first component, and select a combination of block division and prediction mode according to the analysis results to perform predictive compression coding on the first component; analyze the block division of the remaining components According to the analysis results, select a combination of block division and prediction mode to perform predictive compression coding on the remaining components.

[0059] Here,...

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Abstract

The invention discloses a forecasting compressed coding method which comprises the following steps: a first component is selected by analyzing characteristic information of various components; block division and forecasting mode combination of the first component are analyzed in the same block division variety, and a variety of block division and forecasting mode combination is selected for forecasting compressed coding of the first component according to analysis results; block division and forecasting mode combination of other components is analyzed, and a variety of block division and forecasting mode combination is selected for forecasting compressed coding of the other components according to analysis results. The invention simultaneously discloses a forecasting compressed coding system which comprises three or more than three forecasting compressed coding units and a mode selection unit. By utilization of the forecasting compressed coding method and the forecasting compressed coding system, good coding efficiency of forecasting compressed coding can be guaranteed.

Description

technical field [0001] The invention relates to video compression technology of image format, in particular to a predictive compression coding method and system. Background technique [0002] In image and video display technology, in order to express color information correctly and effectively, it is necessary to establish and select an appropriate color model. The color model is built in the color space, so the color model is closely related to the color space. Commonly used color spaces include: ternary color (RGB), YCbCr, etc. [0003] The images mentioned in this article include still images, moving images, such as image sequences and video images, and images obtained by processing these images. [0004] According to different spatial sampling methods for color images, image formats can be divided into the first sampling format, the second sampling format, and so on. The first sampling format is the first sampling format in which the sampling rates of various componen...

Claims

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Application Information

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IPC IPC(8): H04N7/32H04N7/26
CPCH04N7/26239H04N7/26021H04N7/26154H04N19/00018H04N19/103H04N19/147H04N19/169
Inventor 吴仲谋何芸朱炳强郑建铧孟新建史舒娟郑萧桢
Owner HUAWEI TECH CO LTD
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