| 摘要 |
<p>The image compression circuit divides a video image into 32 x 32 pixel blocks in the first block memory 101 and determines in the blocksegmentator 102 whether a particular image corresponds to a "complex" or "flat" area ie high and low contrast respectively. A block determined as being complex is divided into 16 x 16 sub-blocks and further sub-divided (8 x 8, 4 x 4) in accordance with the complexity of each sub-block. Each sub-divided block is compressed in accordance with its complexity (104, 105) and transmitted, in addition to a quad-tree signal representing block division, along a channel to a receiver 5. <IMAGE></p> |
