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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.:

US 11039121 B1

PDFFull Text
Date of Patent:
Jun. 15, 2021

Filed:

Jun. 20, 2017

Calibration apparatus, chart for calibration, chart pattern generation apparatus, and calibration method

Applicant:

Sony Interactive Entertainment Inc., Tokyo, JP;

Inventors:

Yoshihiro Myokan, Kanagawa, JP;

Tetsugo Inada, Tokyo, JP;

Junichi Muramoto, Tokyo, JP;

Assignee:

Sony Interactive Entertainment Inc., Tokyo, JP;

Attorney:

Matthew B. Dernier, Esq.

Primary Examiner:

Jayanti K Patel

Assistant Examiner:

Stefan Gadomski

Int. Cl.
CPC ...
H04N 13/246 (2018.01); G06T 7/80 (2017.01);
U.S. Cl.
CPC ...
H04N 13/246 (2018.05); G06T 7/85 (2017.01);
Abstract

Provided is a calibration apparatus that performs calibration by using a captured image of a chart including a plurality of plane surfaces forming a predetermined angle θ. An imaging apparatus simultaneously images chart patterns depicted on each of the plane surfaces of the chart. In this instance, the chart pattern depicted on each of the plane surfaces of the chart is inversely projected in accordance with a distance from an imaging plane such that patterns in which feature points are uniformly distributed within the captured image are obtained.

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Myokan, Yoshihiro. (2021). Calibration apparatus, chart for calibration, chart pattern generation apparatus, and calibration method (U.S. Patent No. 11039121). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11039121

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