Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2005-12-07
2009-12-15
Bhatnagar, Anand (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C701S200000
Reexamination Certificate
active
07634107
ABSTRACT:
This invention is to provide a tunnel detection technique, which is hardly affected by external circumstance at each time. A roadway type judgment method according to the invention includes: calculating, with respect to image data from a camera mounted in or on a vehicle or image data obtained by carrying out a specified conversion on the image data from the camera, a feature amount of at least one component among plural components in a specified color space of the image and storing the calculated feature amount into a feature amount data storage; determining whether or not the feature amount stored in the feature amount data storage satisfies a predetermined condition; based on a determination result at the determining, judging whether or not the vehicle travels inside a tunnel.
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Office Action issued Jan. 10, 2008 for corresponding German Patent Application No. DE102006005443.
Bhatnagar Anand
Fujitsu Limited
Fujitsu Patent Center
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