发明名称 |
VIDEOFERNMELDESYSTEM UND -VERFAHREN ZUR KOMPRESSION UND DEKOMPRESSION VON DIGITALEN FARBVIDEODATEN |
摘要 |
The method and system of compressing and decompressing digital color video data in a video communication system utilizes a digital color video signal having three video color components, and involves the determination of a predetermined number of the most visually significant combinations of color components in a picture frame, and the encoding of the color components as compressed color codes in a series of run length and compressed color code combinations. Line-to-line differences and movement of edges and segments of the picture frames are determined, and frame-to-frame differences are also encoded to reduce the amount of information to a minimum. Further statistical encoding of at least a portion of the run length and color code combinations is also provided. The digitally compressed color component codes are decoded according to a look up table to form a table of the three digital color components for each run length, and the run lengths and corresponding color components are stored in an array in a buffer memory to represent the scan lines in a video picture frame. |
申请公布号 |
AT140357(T) |
申请公布日期 |
1996.07.15 |
申请号 |
AT19890304116T |
申请日期 |
1989.04.25 |
申请人 |
BIL (FAR EAST HOLDINGS) LIMITED (A HONG KONG CORPORATION) |
发明人 |
MUSIC, JOHN;THOMAS, JAMES L.;SMITH, GORDON H. |
分类号 |
H04N9/804;G06T9/00;G09G5/06;H04N1/41;H04N7/32;H04N7/36;H04N9/808;H04N11/04;(IPC1-7):H04N11/04 |
主分类号 |
H04N9/804 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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