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