Television – Special applications – Observation of or from a specific location
Patent
1997-04-14
2000-10-10
Kelley, Chris S.
Television
Special applications
Observation of or from a specific location
340511, 340567, 382 1, 382 41, 382 44, 382 56, H04N 718
Patent
active
061307076
ABSTRACT:
A motion detection system compares the differences between regions in a reference frame and regions in a subsequent frame to a threshold value. A difference frame is defined containing regions indicating which of the corresponding regions in the subsequent frame exceed the threshold difference when compared to the reference frame. Target and global parameters are defined so that a cluster of regions in the difference frame which indicate above threshold differences, must be greater than the target parameter but less than the global parameter for motion to be deemed to have occurred.
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Koller David P.
Preschutti Joseph P.
An Shawn S.
Kelley Chris S.
Philips Electronics N.A. Corp.
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