Video affine motion estimation method of adaptive factors
An adaptive factor, affine motion technology, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve problems such as inability to achieve motion estimation/compensation, limited practicality, etc.
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[0056] The video affine motion estimation method of adaptive factor of the present invention is characterized in that carrying out according to the following steps:
[0057] Step 1. If all frames of the current Group of Picture (GOP) have been processed, the algorithm ends; otherwise, select an unprocessed frame in the current GOP as the current frame , and use its previous frame as the reference frame ;
[0058] Step 2. If the current frame All the macroblocks of have been processed, then go to step 1; otherwise, select an unprocessed macroblock of the current frame As the current macroblock, let its size be pixel, , Indicates the abscissa and ordinate of the pixel in the upper left corner of the current macroblock, is a preset constant, in this embodiment, let ;
[0059] Step 3. According to the definition of formula (1), use the diamond search method in the size of In the window of pixels, calculate the current macroblock The translational motion vector...
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