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Image processing method of increasing information encoding-decoding efficiency

An image processing, encoding and decoding technology, applied in the field of image and video encoding/decoding, can solve the problem of large amount of information redundancy, and achieve the effect of high calculation efficiency and less calculation amount

Inactive Publication Date: 2006-10-25
李博航
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Problems solved by technology

[0005] But in fact, the information redundancy in the high-resolution image frame is relatively large.

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  • Image processing method of increasing information encoding-decoding efficiency
  • Image processing method of increasing information encoding-decoding efficiency
  • Image processing method of increasing information encoding-decoding efficiency

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Embodiment Construction

[0027] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0028] figure 1 It is a schematic diagram of an example of a method for generating four low-resolution 4×4 panorama images from an 8×8 image data at equal intervals in rows and columns according to the present invention. In the figure, it is assumed that the original image data of a high-resolution video is 8×8 The data array uses alternate rows and columns to extract data at equal intervals to generate four 4×4 low-resolution image data. These four 4×4 low-resolution image data contain all the data of the original 8×8 image. Such a data extraction method is that four 4×4 low-resolution image data have strong visual similarity. And any of the 4×4 low-resolution image data is uniformly extracted from the original image, and has visual similarity with the original image.

[0029] figure 2 It is a schema...

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Abstract

Before carrying out compressed encoding process for video image in high resolution, the method decomposes the video image in high resolution into multiple panoramic images in low resolution by picking up data in equal interval according to row and column. Using visual similarity between images in low resolution, the method calculates optimal correlation coefficient by using relativity analysis method after one panoramic image in low resolution is selected as basic reference image data. In subsequent compressed encoding process, the invention only needs to treat basic reference image data in low resolution and correlation coefficients of other image data in low resolution. The invention reduces amount of information for carrying out data compression encoding greatly, raises encoding efficiency and transmission efficiency of video information. The invention is applicable to diversified encoding and decoding standards for image compression.

Description

technical field [0001] The invention relates to an image information processing method for video encoding and decoding, especially by decomposing original image information into a plurality of low-resolution similar image information to reduce the amount of information for subsequent information encoding / decoding and improve information processing efficiency; Image and video encoding / decoding technical field. Background technique [0002] Efficient video codec technology is the key to realize high-quality, low-cost multimedia data storage and transmission. The current popular international standards for image codecs are all based on such a coding theory, using a coding method based on block matching motion compensation, discrete cosine transform and quantization. Typical international standards such as MPEG-1, MPEG-2 and MPEG-4 launched by the first joint technical group of the International Organization for Standardization / International Electrotechnical Commission. The AV...

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Application Information

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IPC IPC(8): H04N19/105H04N19/112H04N19/59
Inventor 李博航
Owner 李博航
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