Method for detecting object traveling direction

Image analysis – Applications – Motion or velocity measuring

Reexamination Certificate

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Details

C382S194000, C382S199000, C382S103000, C382S181000, C382S305000, C382S309000, C382S310000, C382S311000, C348S240200, C707S793000, C707S793000, C707S793000, C707S793000, C358S403000

Reexamination Certificate

active

10550954

ABSTRACT:
An object of the invention is to provide a target travel direction detecting method capable of detecting the travel direction of efficiently detecting the travel direction of a target by using a small amount of information.The target travel direction detecting method according to the invention generates a lightness image from each of the two color images picked up at predetermined time intervals and causes a template of n by n105to scan the lightness image at time t to detect a position where the target is present. Next, the values of pixels around the pixel of the position where the target is detected are stored into the template105. The template105storing the pixel values is used to scan the lightness image at time t+1 and detect a pixel that matches each pixel value of the template105. Then, the target is plotted for each travel direction at a pixel position matching the template105on the lightness image at time t+1 to create a travel-direction-extracted image.

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Lin, Hongwen, “Engineering Master's Dissertation: Analysis on Moving Objects of Monitoring Video”, Nov. 2002, Graduate Institute of National University of Defense Technology. (English translation of relevant portions discussed in Office Action).
Chinese Office Action issued in corresponding Chinese Patent Application No. CN 2004800085610, dated Nov. 10, 2006.

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