Method and circuit for adjusting the size of a video frame
作者： Christine M. Guillemot , Rashid Ansari
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摘要: In accordance with the present invention, number of bits used to code a frame video is controlled by controlling size. preprocessing stage (40) coding circuit (10), each processed low pass anti-aliasing filter (43,44) in horizontal and vertical directions. The cutoff frequencies directions are determined desired reduction factor corresponding direction. Then reduce sampling rate dimension, horizontally vertically shift varying (45,46). When both reduced M/N, decreases linearly M/N.
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