发明名称 |
PROCESSING PICTURE SIGNALS |
摘要 |
A luminance picture signal is applied to a segmentation device (2) and a modal filter (3) to produce a region signal. Both the picture signal and the region signal are applied to a subtractor circuit (5) to produce a texture signal which is encoded in encoder (7). The region signal is applied to an edge mapping device (9) to produce a region list signal and an edge map of the original image. The edge map is subjected in an element prediction device (10) to a template to produce a prediction from a look-up table in a memory (12) regarding the value of an element in a fixed position adjacent the template. If the prediction is correct then a prediction error signal indicates no error whilst if an error exists either the prediction error signal conveys the actual value or where it may be found in a look-up table. The prediction error signal is encoded in a second encoder (14). <IMAGE> |
申请公布号 |
EP0454234(A3) |
申请公布日期 |
1993.10.13 |
申请号 |
EP19910200933 |
申请日期 |
1991.04.19 |
申请人 |
PHILIPS ELECTRONICS UK LIMITED;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
DAVID, MORAN, PHILIPS ELECTRONICS PHILIPS HOUSE;MORRIS, OCTAVIUS JOHN |
分类号 |
G06T7/00;G06T9/00;G06T9/20;H03M7/30;H04N1/41;H04N1/417;H04N7/26;(IPC1-7):G06F15/66 |
主分类号 |
G06T7/00 |
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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