现代电子技术Issue(14)：82-84,88,4.
基于SIFT的超大图像配准
Oversized image registration based on SIFT algorithm
摘要
Abstract
SIFT algorithm has a good matching performance under the conditions of affine transformation,noise and certain illumination. Since imaging size of the broadband camera on satellite is always oversized,if the oversized image is directly han⁃dled with SIFT algorithm,a big space will be occupied and a long computing time will be spended when building a Gaussian pyramid. By going into the affine transformation matrix,a method of calculating the matching coefficient between the downsam⁃ple images of oversized images to indirectly get the matching coefficient of the oversized images is proposed. The experimental re⁃sult indicates that this method is feasible. As for the image registration,it has a certain guiding significance for saving the com⁃putation time by reducing space occupation.关键词
图像配准/SIFT/仿射变换/配准系数/超大图像Key words
image registration/SIFT/affine transformation/matching coefficient/oversized image分类
信息技术与安全科学引用本文复制引用
..基于SIFT的超大图像配准[J].现代电子技术,2013,(14):82-84,88,4.
