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:
Dec. 31, 2024

Filed:

May. 04, 2023
Applicant:

Coretronic Corporation, Hsin-Chu, TW;

Inventor:

Kun-Hong Chen, Hsin-Chu, TW;

Assignee:

Coretronic Corporation, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G06T 7/11 (2017.01);
U.S. Cl.
CPC ...
H04N 9/3185 (2013.01); G06T 7/11 (2017.01); G06T 2207/10004 (2013.01);
Abstract

A method and a projection system for calibrating a projection area of a projector are provided. The method includes the following. A calibration pattern is projected to form a projection area, and includes a first original mark group and a second original mark group. A captured image including the projection area is obtained. Whether the captured image includes a closed area formed by a complete line is determined. A first calibration operation is performed when the captured image does not include the closed area. A second calibration operation is performed when the projection area in the captured image includes the complete closed area. The projection area is calibrated according to a first mark group or a second mark group in the captured image during the first calibration operation. The projection area is calibrated according to the second mark group in the captured image during the second calibration operation.


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