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:
Nov. 24, 2015
Filed:
Nov. 15, 2012
Electronics and Telecommunications Research Institute, Daejeon, KR;
National University of Sciences & Technology, Islamabad, PK;
Yong Ju Cho, Seoul, KR;
Ji Hun Cha, Daejeon, KR;
Myung Seok Ki, Daejeon, KR;
Seong Yong Lim, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Seung Kwon Beack, Seoul, KR;
Jin Woong Kim, Daejeon, KR;
Rehan Hafiz, Islamabad, PK;
Muhammad Murtaza Khan, Islamabad, PK;
Atif Ahmed, Islamabad, PK;
Arshad Ali, Islamabad, PK;
Electronics and Telecommunications Research Institute, Daejeon, KR;
National University of Sciences & Technology, Islamabad, PK;
Abstract
Provided is a geometric correction apparatus and method based on a recursive Bezier patch sub-division. A geometric correction method may include: receiving, from a camera, a first image that is obtained by photographing a black screen that is projected by a projector onto a projection surface; receiving, from the camera, a second image that is obtained by photographing a predetermined pattern that is projected by the projector onto the projection screen; generating a third image by subtracting the first image from the second image; and performing geometric correction with respect to the predetermined pattern to correct a distortion between the predetermined pattern and the third image.