Object-based fractal video compression and decompression method
A video compression and decompression technology, which is applied in the fields of digital video signal modification, television, electrical components, etc., and can solve the problems of difficulty in meeting the requirements of compression time and image quality, slow encoding speed, and large amount of computation.
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[0058] The method of the present invention will be further described in detail below with reference to the accompanying drawings, only taking the luminance component Y as an example, the compression steps of the color difference components U and V are the same as those of the luminance component.
[0059]The invention proposes an object-based fractal video compression and decompression method, which is a new video compression and coding method based on video content and using the principle of fractal iteration. First, use the video segmentation method to obtain the video object segmentation plane, that is, the Alpha plane, use block DCT transform coding for the initial frame, and perform block motion estimation / compensation coding for non-I frames. Pixel sum and pixel square sum, and then use the full search method to find the most similar matching block in the search window of the previous frame, and finally use the Huffman coding method to compress the coefficients of the ite...
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