DocumentCode
705841
Title
Extracting distorted grid points for compensation of lens radial nonlinearities
Author
Nowakowski, Artur ; Skarbek, Wladyslaw
Author_Institution
Inst. of Radioelectron., Warsaw Univ. of Technol., Warsaw, Poland
fYear
2007
fDate
3-7 Sept. 2007
Firstpage
125
Lastpage
129
Abstract
A novel method for extracting distorted grid points for compensation of lens radial nonlinearities is presented. It is based on identification of homographic transformation using single image of dense planar chessboard pattern. Undistorted grid image is determined from the central part of the grid and used to find the radial distortion model by linear least square method (LSM). The model is used for dense compensation by bilinear interpolation.
Keywords
compensation; image processing; interpolation; least squares approximations; lenses; optical distortion; bilinear interpolation; dense compensation; dense planar chessboard pattern; extracting distorted grid points; homographic transformation identification; lens radial nonlinearities; linear least square method; radial distortion model; single image; undistorted grid image; Accuracy; Calibration; Cameras; Estimation; Lenses; Optical distortion; Transmission line matrix methods;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2007 15th European
Conference_Location
Poznan
Print_ISBN
978-839-2134-04-6
Type
conf
Filename
7098777
Link To Document