A panoramic mosaic method with fisheye images
Dan Xu · Journal of Yunnan University for Nationalites · 2004
Fisheye image has wider view lens compared to ordinary image. Two to four fisheye images are enough to cover 360-degree horizontal and vertical field of view . However, ordinary registration method causes bad panoramic image because of serious distortion of fisheye images. In this paper, a distortion correcting method is used and combined with phase correlation method to get the initial rotation values of the all image pairs with overlap. Then the least gray value difference square sum function of the all image pairs with overlap is iteratively solved to get precise rotation value and distortion correction parameter.