Abstract—Aim to the difficulty of acquisition of conjugate points from multi-source remote sensing imagery, a novel matching method based on SIFT and CRA similarity measure is proposed. Firstly, the SIFT operator is adopted to extract feature points

是一篇关于遥感技术型介绍性文章，详细说明了遥感的发展状况，现在面临的问题，以及亟待解决的问题。