A fast algorithm of image registration

Image registration is a basic problem in image processing, which is widely applied in the field of target tracking, stereo matching, scene recognition etc. For its diversity and complexity, registration algorithm still exists several problems in the speed and accuracy at present. Therefore, a fast sub-pixel algorithm of image registration based on block processing and iterative improvement is proposed, in which improves the registration speed greatly with accuracy on a good condition. The validity and superiority of the algorithm is proved by the running result based on actual experiment data. Keywords-image registration; sub-pixel; image blocking; stitching