{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,3,7]],"date-time":"2024-03-07T17:21:55Z","timestamp":1709832115369},"reference-count":17,"publisher":"World Scientific Pub Co Pte Lt","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Wavelets Multiresolut Inf. Process."],"published-print":{"date-parts":[[2017,1]]},"abstract":"<jats:p> Affine transform is to describe the same target at different viewpoints to obtain the relationship between images of approximate model. Affine invariant feature extraction plays an important role in object recognition and image registration. Firstly, the definition of polar radius integral transform (PRIT) is put forward by means of the characterization of affine transform mapping straight line into straight line, where PRIT computes the integral along the polar radius direction and converts images into closed curves which keep the same affine transform with original images. Secondly, in order to extract affine invariant feature, an affine invariant feature extraction algorithm is also given based on PRIT. The proposed algorithm can be used to combine contour-based methods with region-based methods. It has some advantages of fewer amounts of computations and feasibility of feature extraction for objects with several components. Finally, the capability of anti-noise (Gaussian noise, salt and pepper noise) of PRIT is discussed. The simulation experiment results show that PRIT can effectively extract the affine invariant features, but also the low order PRIT has very strong robustness to noise. <\/jats:p>","DOI":"10.1142\/s0219691317500059","type":"journal-article","created":{"date-parts":[[2016,11,2]],"date-time":"2016-11-02T05:09:56Z","timestamp":1478063396000},"page":"1750005","source":"Crossref","is-referenced-by-count":3,"title":["Polar radius integral transform for affine invariant feature extraction"],"prefix":"10.1142","volume":"15","author":[{"given":"Yongdong","family":"Huang","sequence":"first","affiliation":[{"name":"School of Mathematics and Information Science, Beifang University of Nationalities, Yinchuan 750021, P. R. China"}]},{"given":"Jianwei","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Mathematics and Statistics, Nanjing University of Information Science and Technology, NanJing 210044, P. R. China"}]},{"given":"Sansan","family":"Li","sequence":"additional","affiliation":[{"name":"School of Physics and Information Technology, Shaanxi Normal University, Xian 710119, P. R. China"}]},{"given":"Wenzhen","family":"Du","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Science, Beifang University of Nationalities, Yinchuan 750021, P. R. 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