.Inverse log polar transformation algorithm based on sub-pixel interpolation[J].Optoelectronics Letters,2006,2(3):213-216 Inverse log polar transformation algorithm based on sub-pixel interpolation WANG Qi LI Yan-jun ZHANG Ke XIONG Xian-ze College of Astronautics, Northwestern Polytechnical University, Xi＇an 710072, China Abstract:       Log polar transformation is an important algorithm of space-variant vision theory. It well depicts the retinocortical mapping. Due to the logarithmic and the arctangent operation in the transformation,the log polar coordinate of an image is mostly a decimal fraction and the range is quite narrow. Aiming at solving these problems,this paper puts forward an inverse log polar transformation based on sub-pixel interpolation. The acquired log polar image of the new algorithm has no mosaic phenomenon,meanwhile it is a better simulation of retina-cortical mapping. Hits: 3771 Download times: 186 View Full Text    Download reader