The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Aug. 05, 2011
Applicant:
Hiroyuki Ohsawa, Chiba, JP;
Inventor:
Hiroyuki Ohsawa, Chiba, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01); G01B 11/25 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G01B 11/25 (2013.01); G01B 11/2536 (2013.01); G06T 7/0057 (2013.01);
Abstract
On the basis of captured images at the time of projecting multiple-frequency slit-shaped light patterns having no overlapping edge positions onto an object, the edge portions of the slit-shaped light patterns are identified. When the edge portions overlap in the captured images of two or more slit-shaped light patterns, the reliability of the computed distance values of the positions corresponding to the edges is lowered.