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.

Date of Patent:
Oct. 08, 2024

Filed:

Nov. 15, 2018
Applicant:

Thk Co., Ltd., Tokyo, JP;

Inventors:

Hitoshi Kitano, Tokyo, JP;

Tsubasa Usui, Tokyo, JP;

Assignee:

THK CO., LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/00 (2024.01); G06K 7/14 (2006.01); G06T 7/70 (2017.01);
U.S. Cl.
CPC ...
G05D 1/0272 (2013.01); G05D 1/0234 (2013.01); G06K 7/14 (2013.01); G06T 7/70 (2017.01);
Abstract

This image processing device includes: a detection object including cells having first cells capable of reflecting emitted light and second cells incapable of reflecting the emitted light, the cells being squares or rectangles, the first cells and the second cells being arranged in an a×a or a×b (where a, b=3, 4, 5, 6, . . . ) matrix on a two-dimensional plane; and a detector including: an illuminator emitting light; imagers imaging, by a camera, light reflected from the first cells after the first cells and the second cells constituting the detection object are illuminated with the light emitted from the illuminator; and a calculator obtaining information set on the detection object, based on imaged data items taken by the imagers. Such a configuration can accurately identify a compact marker and measure the distance, and achieve a system inexpensively.


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