发明名称 |
Method for processing and transmitting a picture sequence. |
摘要 |
<p>Various methods for reducing redundancy and irrelevance are known for the transmission of picture information via a channel having a limited data capacity. Thus, movement vectors are determined and coded for part-picture areas. The part-picture areas themselves are also subjected to a coding, for example a discrete cosine transformation DCT. A method is specified which provides a possibility of reliable picture reconstruction. In the method according to the invention, displacement vectors (D) are determined part-picture-area by part-picture-area for a movement-compensated estimated picture (K + 3<*>) and transmitted. Using the picture-element-to-picture-element differences (DFD) between estimated picture (K + 3<*>) and the new picture (K + 3) corresponding to the estimated picture, part-picture areas having a high content of movement are DCT-transformed and transmitted. Only every third picture is transmitted. Intermediate pictures are extrapolated with movement compensation. <IMAGE></p> |
申请公布号 |
EP0346637(B1) |
申请公布日期 |
1994.04.06 |
申请号 |
EP19890108917 |
申请日期 |
1989.05.18 |
申请人 |
ANT NACHRICHTENTECHNIK GMBH |
发明人 |
GROTZ, KARLHEINZ, DIPL.-ING.;MAYER, JOERG, DIPL.-ING.;SUESSMEIER, GEORG, DIPL.-ING. |
分类号 |
H04N19/51;H04N19/577;(IPC1-7):H04N7/137;H04N7/133 |
主分类号 |
H04N19/51 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|