Patent ID: 8855436
Filing Date: 2014-10-07
Classification: G06K,G08G,H04N

Abstract:
1. A method of selective video frame compression for vehicle event driven searching, the method comprising: acquiring electronically stored decompressed video data depicting at least one vehicle in motion, the video data representing a plurality of frames; detecting frames depicting a desired vehicle position, wherein the detecting frames comprises imposing a virtual geometric figure on each frame and detecting a motion vector of sufficient magnitude on the virtual geometric figure in a sufficient number of frames; compressing each frame depicting a desired vehicle position using a first computer implemented compression technique that does not require other frames in the video data for compression, wherein the desired vehicle position comprises a position that allows for recognition of a license plate number of the vehicle; compressing a plurality of frames not depicting a desired vehicle position using a second computer implemented compression technique that requires other frames in the video data for compression; storing compressed video data for future investigation.