发明名称 |
METHOD AND DEVICE FOR VIDEO SCENE COMPOSITION |
摘要 |
<p>The invention relates to a cost-effective and optimized method of composing a scene content from digital video data streams containing video objects, said method comprising a decoding step for generating decoded object frames from said digital video data streams, and a rendering step for composing intermediate-composed frames in a composition buffer from said decoded object frames. The method of scene composition according to the invention comprises a scaling step applied to said intermediate-composed frames for generating output frames constituting scene content. Indeed, by performing a scaling step on intermediate-composed frames of the final scene, enlarged frames are obtained in a single processing step, which considerably reduces the computational load. The use of a signal co-processor for the scaling step provides a possibility of anticipating simultaneously the decoding of objects, performed by a signal processor, used in the composition of the future intermediate-composed frame. Use: Video scene compositor</p> |
申请公布号 |
EP1332623(A2) |
申请公布日期 |
2003.08.06 |
申请号 |
EP20010989023 |
申请日期 |
2001.10.17 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
BROUARD, GUILLAUME;DURANDY, THIERRY;PLANTEROSE, THIERRY |
分类号 |
H04N5/262;H04N7/08;H04N7/081;H04N7/24;H04N7/26;H04N19/29;H04N19/33;(IPC1-7):H04N7/24 |
主分类号 |
H04N5/262 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|