Title:
LIGHT FLIGHT TYPE RANGE-FINDING DEVICE
Document Type and Number:
Japanese Patent JP2017015448
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To detect a multi-pass that may occur in the vicinity of a surface with a comparatively strong mirror face reflection component even when the surface with the comparatively strong mirror face reflection component exists in a light emitting space.SOLUTION: A light flight type range-finding device 1 is configured to: acquire a distance image by reception of light including reflection light having modulation light to be repeatedly emitted from a light emitting unit 3 reflected upon a surface of an object by a light reception unit 4; acquire a luminance value image by reception of the light having sun light different in an optical axis from the modulation light to be repeatedly emitted from the light emitting unit 3 or reflection light having modulation light to be emitted from a light emitting unit 19 reflected upon the surface of the object as background light by the light reception unit 4; and detect an area where a multi-pass has occurred using the distance image and the luminance value image.SELECTED DRAWING: Figure 1
Inventors:
YOSHIDA TOMONARI
YANAI KENICHI
YANAI KENICHI
Application Number:
JP2015129975A
Publication Date:
January 19, 2017
Filing Date:
June 29, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
G01S17/87; G01S17/89
Attorney, Agent or Firm:
Patent Business Corporation Sato International Patent Office