Television – Image signal processing circuitry specific to television – Motion dependent key signal generation or scene change...
Patent
1997-08-06
2000-01-11
Le, Vu
Television
Image signal processing circuitry specific to television
Motion dependent key signal generation or scene change...
348700, H04N 514, H04N 718
Patent
active
060141832
ABSTRACT:
The present invention relates to a device which monitors a digitized video data stream and detects when scene changes occur in the video stream. The present invention detects scene changes by comparing from frame-to-frame each of the pixel colors within the frame. When a high degree of change in pixel color from one frame to the next is detected, this is identified as a scene change. The system of the present invention does not obtain the digitized video data stream by polling a hardware analog-to-digital converter. In order to ensure that the present invention is compatible with any input video source, the present invention does not request data directly from the hardware video digitizing card. Instead, the input video may be displayed upon a computer monitor in any manner, such as by the operating system of the computer. Because the computer must keep track of what is being displayed on the computer monitor, the video data used in the present invention may be downloaded from the operating system by identifying which portion of the screen contains the video data of interest.
REFERENCES:
patent: 5363139 (1994-11-01), Keith
patent: 5392072 (1995-02-01), Rodriguez et al.
patent: 5471239 (1995-11-01), Hill et al.
patent: 5557330 (1996-09-01), Astle
patent: 5561477 (1996-10-01), Polit
patent: 5565920 (1996-10-01), Lee et al.
patent: 5642174 (1997-06-01), Kazui et al.
patent: 5642294 (1997-06-01), Taniguchi et al.
patent: 5767893 (1998-06-01), Chen et al.
patent: 5774593 (1998-06-01), Zick et al.
patent: 5802361 (1998-09-01), Wang et al.
patent: 5805733 (1998-09-01), Wang et al.
patent: 5805746 (1998-09-01), Miyatake et al.
Imagine Products, Inc.
Le Vu
LandOfFree
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