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. 20, 2018
Filed:
Dec. 10, 2014
Advanced Healthcare Co., Ltd., Tokyo, JP;
National University Corporation Chiba University, Chiba-shi, Chiba, JP;
Toshiya Nakaguchi, Chiba, JP;
ADVANCED HEALTHCARE CO., LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, Chiba-shi, Chiba, JP;
Abstract
This invention provides a simple projector system that can be operated by a user who is not an expert of image processing technology. The projector system comprises a projector (), a personal computer (), a mouse (), and a calibration board (). A checker flag pattern is added to the calibration board (), and an intersection point serves as a marker. A cursor, which is projected from the projector () onto the calibration board (), is used as an intuitive input interface. An operator, while seeing the cursor, operates the mouse (), thereby placing the cursor onto the calibration marker. In this state, the operator clicks the mouse (), thereby selecting the calibration marker. The operator then acquires the corresponding projection image coordinates on the basis of the selection instruction.