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Title:
DETECTOR AND METHOD FOR DETECTING PASSED SUBJECT
Document Type and Number:
Japanese Patent JP2004020305
Kind Code:
A
Abstract:

To automatically detect a passing speed of a subject and a shape of the subject.

This passing subject detecting detector 1 is a device in which the subject 41 in an image picked-up area 42 is detected by an image plane 14a including a moving image 21, and includes the first rod-like window setting executing part for executing setting for the first rod-like window by the image plane 14a including an advanced window and a followed window, a dot brightness change judging part for calculating a brightness change in the advanced window and for judging whether the calculated brightness change exceeds a reference value or not, a subject speed calculating part for measuring a time from a generation time of the change in the advanced window to a generation time of a change in the following window, when the brightness change similar to that in the advanced window is generated in the following window when exceeding the reference value, and for calculating the subject 41 speed based on a measured time and a distance on the image picked-up area 42, and a speed output executing part for outputting the calculated speed of the subject 41.


Inventors:
MATSUMOTO MICHIO
Application Number:
JP2002173808A
Publication Date:
January 22, 2004
Filing Date:
June 14, 2002
Export Citation:
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Assignee:
TAISEI CORP
International Classes:
G01P3/36; G01B11/00; G01B11/24; G06T1/00; G06T7/60; H04N7/18; (IPC1-7): G01P3/36; G01B11/00; G01B11/24; G06T1/00; G06T7/60; H04N7/18
Attorney, Agent or Firm:
Isono Dozo