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Title:
THREE-DIMENSIONAL OBJECT DETECTION DEVICE, THREE-DIMENSIONAL OBJECT DETECTION METHOD, AND FOREIGN SUBSTANCE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/017318
Kind Code:
A1
Abstract:
The present invention is provided with: a camera (10) for imaging the rear of a vehicle; three-dimensional object detection units (33, 37) for detecting a three-dimensional object on the basis of image information; a three-dimensional object determination unit (34) for determining whether the detected three-dimensional object is another vehicle (VX); a foreign substance detection unit (38) which subjects differential waveform information generated at a first timing to signal processing using a band-pass filter and which determines that an image containing a pixel corresponding to the maximum value of differential waveform information generated at a second timing after the first timing is an image that resulted from foreign substances attached to a lens on the basis of the frequency at which the difference between a reference value based on the maximum value of the differential waveform information generated at the first timing and an evaluation target value based on the maximum value of the differential waveform information generated at the second timing is within a determination range; and a control unit (39) for outputting a control command to each means such that the foreign substances will not be determined as another vehicle (VX) when foreign substances were detected.

Inventors:
HAYAKAWA YASUHISA
FUKATA OSAMU
Application Number:
PCT/JP2013/069153
Publication Date:
January 30, 2014
Filing Date:
July 12, 2013
Export Citation:
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Assignee:
NISSAN MOTOR (JP)
International Classes:
H04N7/18; G06T1/00; G08G1/16
Domestic Patent References:
WO2012023412A12012-02-23
WO2009057410A12009-05-07
Foreign References:
JP2012003662A2012-01-05
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
It can exceed and is a patent business corporation. (JP)
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