| 摘要 |
The method and the circuit are intended for processing a picture represented by pixels obtained by column-scanning of bands of height equal to a complete fraction of the picture. The picture is partitioned into blocks of N columns of M pixels. The minimum global distortion is determined by comparison between each of the blocks of the current picture in its turn and each of the equal sized blocks in a search window having H lines and L columns in the preceding picture, a window containing the said block of the current picture, this calculation being performed in M.N cycles by parallel calculation, in the course of each cycle, of all the partial distortions between a specified pixel of the current block and each of the pixels able to correspond thereto by displacement of the block in the search window of the preceding picture, the cycle being repeated for each pixel of the block in its turn. Finally, such block of the preceding picture which has the least distortion relative to the block of the current picture is determined. …<IMAGE>… |
