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:
Jul. 23, 2013
Filed:
Sep. 20, 2010
Tai-feng Wu, Tainan County, TW;
Ching-chang Chen, Kaohsiung, TW;
Yu-jen Wang, Taipei County, TW;
Ming-chieh Chou, Tainan, TW;
Tai-Feng Wu, Tainan County, TW;
Ching-Chang Chen, Kaohsiung, TW;
Yu-Jen Wang, Taipei County, TW;
Ming-Chieh Chou, Tainan, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method for projection correction includes following steps. An original image is projected as a projection image on an object. A projection-zone image including the projection image is captured from the object. A projection image outline corresponding to the projection image is obtained from the projection-zone image. An operation is performed on the projection image outline to obtain a horizontal inclination and a vertical inclination. The original image is pre-warped according to the horizontal inclination and the vertical inclination to obtain a corrected image, and the corrected image is projected on the object.