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Image coding and decoding processing method based on picture element st atistical characteristic and visual characteristic

A technology of visual features and statistical features, applied in the field of image and video encoding and decoding technology and information processing, can solve problems such as the inability to transmit video, and achieve the effects of high encoding efficiency, increased complexity and computational difficulty, and reduced information volume.

Inactive Publication Date: 2007-11-07
BEIJING PAIRUIGEN SCI & TECH DEV
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Problems solved by technology

[0006] However, AVS technology is similar to JPEG and MPGEG technology, and it is still being perfected. Its codec efficiency is basically the same, and it still cannot meet the growing demand for video transmission on limited bandwidth resources.

Method used

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  • Image coding and decoding processing method based on picture element st atistical characteristic and visual characteristic
  • Image coding and decoding processing method based on picture element st atistical characteristic and visual characteristic
  • Image coding and decoding processing method based on picture element st atistical characteristic and visual characteristic

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Embodiment Construction

[0033] The technical solution of the present invention will be further described in detail below with reference to the drawings and implementation examples:

[0034] Fig. 1 is a flowchart of image compression coding using Haffman variable-length coding method as the expression information in the present invention, and is one of the implementation modes of implementing the present invention for image compression coding. The process [101] is the bitmap data based on the three primary colors of red, green and blue obtained by digitizing the image. In the process [102], the number of pixels threshold Hm and the color difference threshold Cm are set, and the values ​​of Hm and Cm can be adjusted according to people's requirements for image quality. The larger the Hm, the more colors with low pixel counts will be replaced in the image; the larger the Cm, the more colors will be merged into the same color because they are treated as similar colors; the more information the corresponding ...

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Abstract

A processing method of image coding / decoding based on pixel statistic character and vision character includes counting out pixel number of each color for each image, utilizing similar color with pixel number being greater than pixel threshold in image to replace color with pixel number being less than pixel threshold, using algorithm of present invention to calculate color diversity ratio between each color in image according different sensitivity of human eye on red-blue-green colors and combining two colors with color diversity ratio being less than set threshold of color diversity ratio to be color with more pixel number.

Description

Technical field [0001] The present invention relates to an image information processing method for video encoding and decoding, especially by analyzing the statistical characteristic information of the original image and the visual characteristics of the human eye to the color to reduce the amount of information in subsequent information encoding / decoding and improve the efficiency of information processing ; Belongs to the field of image video coding and decoding technology and information processing technology. Background technique [0002] Efficient video coding and decoding technology is the key to achieving high-quality, low-cost multimedia data storage and transmission. The current popular international standards for image coding and decoding are based on such a coding theory, using a coding method that combines block matching-based motion compensation, discrete cosine transform, and quantization. Typical examples are MPEG-1, MPEG-2, MPEG-4 and other international standards...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N7/26H04N19/147H04N19/186H04N19/91
Inventor 须清
Owner BEIJING PAIRUIGEN SCI & TECH DEV
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