发明名称 |
VIDEO CONTENT SCENE CHANGE DETERMINATION |
摘要 |
<p>An apparatus and method of detecting scene changes within a video frame sequence. A video data frame pixel array is partitioned into pixel groups within a frame difference engine. Video data matching of each pixel group is compared between a preceding and following video frame. By way of example pixel group matching can be determined in response to comparing the sums of absolute pixel luminance and/or chrominance differences between corresponding pixels in corresponding pixel groups within the sequential frames against a threshold value. If an insufficient number of pixel groups match, then a scene change signal is output, such as to the encoder which decides whether to encode the entire frame or changes from prior frames. A media communication system is also described, preferably implemented within an SoC, which wirelessly communicates encoded video data for substantially simultaneous viewing by a receiver.</p> |
申请公布号 |
WO2005017781(A1) |
申请公布日期 |
2005.02.24 |
申请号 |
WO2004US18315 |
申请日期 |
2004.06.08 |
申请人 |
SONY ELECTRONICS INC. |
发明人 |
GADRE, SHIRISH;SUBRAMANIAN, PATTABIRAMAN;CHU, CHUNGKUANG, PETER;TSUKAGOSHI, IKUO |
分类号 |
H04N5/14;(IPC1-7):G06F17/30;H04N7/26 |
主分类号 |
H04N5/14 |
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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