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:
Jan. 01, 2019
Filed:
May. 10, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Siu-Kei Tin, Milpitas, CA (US);
Jinwei Ye, San Jose, CA (US);
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/50 (2017.01); G06T 7/507 (2017.01); G01B 11/25 (2006.01); G06T 7/521 (2017.01); G06K 9/20 (2006.01); G06T 7/514 (2017.01); G06T 7/55 (2017.01);
U.S. Cl.
CPC ...
G01B 11/2513 (2013.01); G06K 9/2036 (2013.01); G06T 7/50 (2017.01); G06T 7/514 (2017.01); G06T 7/521 (2017.01); G06T 7/55 (2017.01); G06T 2207/10152 (2013.01);
Abstract
The shape of a specular object is measured by illumination of the object by a light field generated by two or more spaced apart layers controllable to display multiple patterns that are predetermined relative to a bounding volume within which the object is positioned. The patterns code a sparse subset of the multitude of light rays that can be generated by the layers to those that can actually reach the bounding volume. A process is described by which a sparse coding of the light rays can be derived.