Traffic density analysis method based on encoded video

Image analysis – Applications – Vehicle or traffic control

Reexamination Certificate

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Details

C382S236000, C340S917000, C348S113000

Reexamination Certificate

active

06975749

ABSTRACT:
A traffic density analysis method includes decoding encoded video data corresponding to an analysis region to obtain a decoded video signal and code information, determining a moving object in units of a macroblock on the basis of the decoded video signal, the code information and a previously decoded video signal, analyzing a macroblock determined as the moving object, setting a specific region in a screen using an analysis result of the macroblock, and estimating a traffic density in the analysis region from information related to the moving object passing through the specific region.

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Naohiro Amamoto, et al., Electronics and Communications in Japan, vol. J81-A, No. 4, pp. 527-535, “Detecting Obstructions and Tracking Moving Objects by Image Processing Technique”, Apr. 1998 (with corresponding English translation: Electronics and Communications in Japan, Part 3, vol. 82, No. 11, pp. 28-37, 1999).

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