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Road surface condition detecting device, road surface condition detection method and the road surface state detection program
Road surface condition detecting device, road surface condition detection method and the road surface state detection program
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机译：路面状态检测装置，路面状态检测方法和路面状态检测程序
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摘要
PROBLEM TO BE SOLVED: To solve the problem that detecting for a road surface condition is unable to process in real time due to the requirement that a vertical polarizing filter and a horizontal polarizing filter are set alternately to the front surface of a TV camera.;SOLUTION: A process discriminating the road surface condition (a dryness state or a wetness state) is carried out by targeting one frame of composite image P31 produced by alternately arranging each raster of a vertical polarized image P11 and a horizontal polarized image P21 that are simultaneously image-formed at an even raster and an odd raster. As a result of this, the road surface condition can be detected in real time and therewith reducing a processing load can be done and the speedup of the processing is realized. The composite image P31 is converted into a frequency space, and the road surface condition can be detected with high accuracy due to discrimination of the change degrees of the strength of a vertical polarized component and the strength of a horizontal polarized component in the same frequency space.;COPYRIGHT: (C)2005,JPO&NCIPI
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