Video motion detector with global insensitivity

Television – Special applications – Observation of or from a specific location

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Details

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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