caa a22 4500 605447411 CHVBK 20210128100132.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s11042-013-1845-6 doi (NATIONALLICENCE)springer-10.1007/s11042-013-1845-6 Noncausal fractional directional differentiator and blind deconvoluation: motion blur estimation [Elektronische Daten] [Xiang Pan, Yongqiang Ye, Jianhong Wang, Xudong Gao, Xin Zhou] The problem of blind estimation of motion blur parameters from a single image is addressed. The blur direction and extent of motion-blurred image, which are introduced by relative motion between a camera and its object scene, are needed in the methods of image restoration, such as blind deconvolution. As an extension to the fractional-order derivative, a noncausal fractional-order directional derivative operator is devised, which is robust to noise. Based on this new operator, a novel method identifying blur parameters is developed in this work. The performance comparison between the proposed method and the state-of-the-art method is also presented, demonstrating that the former provides better immunity to noise and capacity to identify motion blur extent, especially for large blur length. Springer Science+Business Media New York, 2014 Motion blur nationallicence Blind deconvolution nationallicence Noncausal fractional-order directional derivative nationallicence Blur direction nationallicence Blur extent nationallicence Pan Xiang Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut Ye Yongqiang Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut Wang Jianhong Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut Gao Xudong Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut Zhou Xin Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4849-4872 1380-7501 74:13<4849 2015 74 11042 https://doi.org/10.1007/s11042-013-1845-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-013-1845-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pan Xiang Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut NATIONALLICENCE 700 1- Ye Yongqiang Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut NATIONALLICENCE 700 1- Wang Jianhong Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut NATIONALLICENCE 700 1- Gao Xudong Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut NATIONALLICENCE 700 1- Zhou Xin Nanjing University of Aeronautics and Astronautics, 29 Yudao St., 210016, Nanjing, China aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4849-4872 1380-7501 74:13<4849 2015 74 11042