Robust factorization for the affine camera: Analysis and comparison
Du Q. Huynh, Anders Heyden · 2002
Based on our previous work on the use of subspace dis-tances for the outlier deiection problem in video sequences under afFne projection. this paper reports ourfurther anal-ysis of the problem and presents fwo algorithms for com-puting the reprojection errors of imagefeatures in the out-lier detection process. Extensive experiments on real video sequences have been conducted to verrfi the performance ofthe algorithms. The key contributions ofthe paper are presentation offhe relationship befween subspace distances and reprojection errors and demonstration thar repmjec-tion errors can be estimated without erplicitly computing the projective structure. 1.