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Mosaicking Techniques of Aerial Photographs using the RANSAC Algorithm  

Lim, In-Geun (ADD)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.10, no.2, 2007 , pp. 180-187 More about this Journal
Abstract
In this paper, we propose an automatic method which combines two or more images acquired by camera on the air-vehicle into a larger image mosaics. The shift, scaling, rotation factors between two images can be calculated by using the correspondences between the points of the images. In order to estimate these factors, we find the relative positions of two images with respect to each other by using the SIFT descriptor and the RANSAC algorithm. After estimating the factors, the images can be merged into a single image mosaic by warping the target image. To avoid seams when mosaics are constructed from overlapped images, we apply the average gray level value of points within a overlapped zone. We have tested our proposed method on various image sets and have confirmed that our method produced good result subjectively.
Keywords
Image Mosaics; RANSAC(RANdom SAmple Consensus); Homography; Image Matching; Warping;
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