TY - JOUR
T1 - Computing the coefficients of lens distortion models using planar surfaces
AU - Garcia, Ruben E.
AU - Vera, Pablo
AU - Salas, Joaquin
N1 - Publisher Copyright:
© 2017 SPIE and IS&T.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Although there is a wide variety of lens distortion models, computing their parameters remains an open problem. To this end, we introduce a criterion that uses the null space of a matrix that arises from the estimation of the homography. We provide experimental results obtained from laboratory images of calibration patterns, apply our method to images taken in natural settings, study the effect of feature location, and compare it with other approaches. The results suggest that the method works best for cases where the full set of intrinsic or extrinsic camera parameters are not needed, the camera is no longer available, or the optical parameters change over the image sequence.
AB - Although there is a wide variety of lens distortion models, computing their parameters remains an open problem. To this end, we introduce a criterion that uses the null space of a matrix that arises from the estimation of the homography. We provide experimental results obtained from laboratory images of calibration patterns, apply our method to images taken in natural settings, study the effect of feature location, and compare it with other approaches. The results suggest that the method works best for cases where the full set of intrinsic or extrinsic camera parameters are not needed, the camera is no longer available, or the optical parameters change over the image sequence.
KW - computer vision
KW - lens distortion correction
KW - lens parameters calibration
KW - radial distortion
KW - radial distortion coefficient
UR - http://www.scopus.com/inward/record.url?scp=85042584559&partnerID=8YFLogxK
U2 - 10.1117/1.JEI.26.6.063024
DO - 10.1117/1.JEI.26.6.063024
M3 - Artículo
AN - SCOPUS:85042584559
SN - 1017-9909
VL - 26
JO - Journal of Electronic Imaging
JF - Journal of Electronic Imaging
IS - 6
M1 - 063024
ER -