Title:
THREE-DIMENSIONAL OBJECT DETECTION DEVICE AND THREE-DIMENSIONAL OBJECT DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/132970
Kind Code:
A1
Abstract:
In the present invention the following are provided: a camera (10) for capturing images of the area behind a vehicle; a three-dimensional object detection unit (33) for, when converting the viewpoint to a birds-eye-view image, detecting a three-dimensional object on the basis of differential waveform information generated from a pixel count indicating a prescribed differential along the direction in which a three-dimensional object has collapsed; a three-dimensional object determination unit (34) for determining whether a detected object is another vehicle; a state of sudden brightness change detection unit (38) for comparing over time brightness of a center region (B) and that of a peripheral region (A) in image information obtained by the camera (10), and in a case where the change in brightness within a prescribed period of time is at least a predetermined value, a state in which brightness suddenly changes is detected; and a control unit (39) that identifies, in a case where there is a state of sudden brightness change, whether the three-dimensional object was in a state-of-being-detected detection state just prior to such brightness change, and in order to maintain the identified detection state the three-dimensional object is detected, and the control unit suppresses or promotes determination that the three-dimensional object is the other car.
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Inventors:
HAYAKAWA YASUHISA
FUKATA OSAMU
FUKATA OSAMU
Application Number:
PCT/JP2013/053274
Publication Date:
September 12, 2013
Filing Date:
February 12, 2013
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
G08G1/16; G01B11/00; G06T1/00
Foreign References:
| JP2011254128A | 2011-12-15 | |||
| JP2009177309A | 2009-08-06 | |||
| JP2007233470A | 2007-09-13 | |||
| JP2011508922A | 2011-03-17 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
It can exceed and is a patent business corporation. (JP)
It can exceed and is a patent business corporation. (JP)
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Claims: