Image mosaic combining feature point and polar harmonic transform
Shushang Li · Computer Engineering and Applications Journal · 2013
A new image mosaic method is proposed by combining feature point and Polar Harmonic Transform(PHT). The feature points are extracted from the image using Harris detector, and the PHT feature vectors are computed over the circular neigh-boring area around the feature points. The initial feature point pairs are obtained by estimating the Euclidean distance between the PHT feature vectors. The spurious feature point pairs are removed according to the geometric transform model, and the transform parameters are computed through the correct mapping mode. Image mosaic is achieved using the weighed average method. Experimental results show the efficiencies of the proposed scheme.