Automatic Registration of Satellite Images

Registration is a fundamental stage in 3D and 2D reconstruction process, which is used to match two or more images that can be taken in different moments, from different sensors, or different viewpoints. Two images are aligned into a common coordinate system in order to monitor the subtle changes between them. Registration algorithms compute transformations to set correspondence between the two images. . This approach provides a good basis for classifying different techniques, however it does little to illuminate the conditions important to the problem of registration. Understanding the image registration problem space and the conditions under which specific algorithms perform best allows for further automation of image registration, and makes the field more accessible to non-experts. This paper presents manual and automatic registration and their comparison is made.