| 摘要 |
<p>The invention relates to a picture compression process, especially of the MPEG2 type, in which each picture macroblock (10) is subjected to a coding chosen, for each macroblock, from among several types of coding. In order to select the type of coding to be applied to the macroblock, the parameter MB_activ - ±_Q, is determined, in which formula:
€ƒ€ƒ€ƒMB_activ has the following value
with:
Q is the quantization interval, and
± is a predetermined parameter, for example equal to 1. The mode of coding selected is that corresponding to a minimum value of the parameter MB_activ - ±_Q.</p> |
