文件列表:

repeatability\c_eoverlap.mexglx (10376, 2011-01-13)
repeatability\descdist.cxx (4294, 2011-01-13)
repeatability\descdist.mexglx (8757, 2011-01-13)
repeatability\descperf.m (7587, 2011-01-13)
repeatability\display_features.m (1272, 2011-01-17)
repeatability\read me.txt (170, 2011-01-13)
repeatability\repeatability.m (7386, 2011-01-13)
repeatability (0, 2011-03-13)

This package contains matlab files for computing repeatability and matching score between two images [ref. performance evaluation papers]. http://www.robots.ox.ac.uk/~vgg/research/affine km@robots.ox.ac.uk Recompliling c_eoverlap.cxx and descdist.cxx might be necessary matlab>>mex c_eoverlap.cxx; matlab>>mex descdist.cxx; To compute the repeatability score [ref. detector evaluation paper]: [v_overlap,v_repeatability,v_nb_of_corespondences,matching_score,nb_of_matches]=repeatability('img1.haraff.sift','img2.haraff.sift','H1to2p','img1.ppm','img2.ppm',1); v_overlap - overlap errors used for estimation of the repeatability. v_repeatability - repeatability estimated for given overlap errors v_nb_of_corespondences - number of corresponding regions for given overlap errors matching_score - matching score for a given overlap error nb_of_matches - number of correct matches for a given overlap error To evaluate desciriptor performance on a pair of images [ref. descriptor evaluation paper]: run repeatability to compute the correspondence matrix [v_overlap,v_repeatability,v_nb_of_corespondences,matching_score,v_nb_of_matches,twi]=repeatability('img1.haraff.sift','img2.haraff.sift','H1to2p','img1.ppm','img2.ppm',0); then run descperf to compute the matching score [correct_match_nn, total_match_nn,correct_match_sim,total_match_sim,correct_match_rn,total_match_rn]=descperf('img1.haraff.sift','img2.haraff.sift','H1to2p','img1.ppm','img2.ppm',v_nb_of_corespondences(5),twi); correct_match_nn - number of correct matches with nearest neighbour matching strategy total_match_nn - total number of matches with nearest neighbour matching strategy correct_match_sim - number of correct matches with threshold based matching strategy total_match_sim - total number of matches with threshold based matching strategy correct_match_rn - number of correct matches with nearest neighbour distance ratio matching strategy total_match_rn - total number of matches with nearest neighbour distance ratio matching strategy

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