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Registered GEOMETRIC CORRECTION APPARATUS AND METHOD BASED ON RECURSIVE BEZIER PATCH SUB-DIVISION
- Inventors
- Cho Yong Ju, Cha Jihun, Lee Yong Ju, Seong Yong Lim, Beack Seung Kwon, Ki Myung Seok, Jin Woong Kim, Rehan Hafiz, Atif Ahmed, Muhammad Murtaza, Arshad Ali
- Application No.
- 13678315 (2012.11.15)
- Publication No.
- 20130128057 (2013.05.23)
- Registration No.
- 9197887 (2015.11.24)
- Country
- UNITED STATES
- Project Code
- 11ZI1100, Research on Ubiquitous Infra, Kim Dae Sik
- 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.
- KSP Keywords
- Correction method, geometric correction