Hideitsu Hino Yumi Usami Jun Fujiki Shotaro Akaho Noboru Murata Calibration of Radially Symmetric Distortion by Fitting Principal Component. 149-156 2009 CAIP http://dx.doi.org/10.1007/978-3-642-03767-2_18 conf/caip/2009 db/conf/caip/caip2009.html#HinoUFAM09