| 摘要 |
<p>The process for the compression of digital data from a video image which carries out a partitioning (4) of the image into image blocks, a Discrete Cosine Transformation (9) of these blocks so as to deliver coefficients and a quantization (10) of each coefficient using a quantization interval, is characterized in that it also carries out a segmentation (2) of the image and a labelling (2) of the regions obtained, and in that it associates with each block a block control interval on the basis of which the quantization interval for each coefficient of the block is defined, the value of which is calculated as a function of these labels.</p> |
