Wang, Zhuocai, Xu, Xiangmin, Ding, Xiaojun, Xiao, Hui, Huang, Yusheng, Liu, Jian, Xing, Xiaofen, Wang, Hua, Liao, D.Joshua (2011)
Computational & Mathematical Methods in Medicine
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Jiří Jan, Radim Kolář, Libor Kubečka, Jan Odstrčilík, Jiří Gazárek (2011)
Kybernetika
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The paper presents an overview of image analysis activities of the Brno DAR group in the medical application area of retinal imaging. Particularly, illumination correction and SNR enhancement by registered averaging as preprocessing steps are briefly described; further mono- and multimodal registration methods developed for specific types of ophthalmological images, and methods for segmentation of optical disc, retinal vessel tree and autofluorescence areas are presented. Finally, the...
H. Maurer, F. Kappe (1994)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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Petrov, Miroslav (2016)
Serdica Journal of Computing
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The image denoising process is of great importance when analyzing images and their visualization. A major problem is finding the boundary between clearing the noise and keeping the salient features in the images. This paper proposes adaptive subband threshold image denoising in a shearlet domain based on the Shannon entropy. The method does not suppose a specific type of noise, it does not require data for its spectrum, nor does it lead to highly complex computational algorithms. ACM...
Mariusz Frąckiewicz, Henryk Palus (2011)
International Journal of Applied Mathematics and Computer Science
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In this paper, the idea of applying the k-harmonic means (KHM) technique in biomedical colour image segmentation is presented. The k-means (KM) technique establishes a background for the comparison of clustering techniques. Two original initialization methods for both clustering techniques and two evaluation functions are described. The proposed method of colour image segmentation is completed by a postprocessing procedure. Experimental tests realized on real endoscopic colour images...
Tsai, Meng-Hsiun, Chan, Yung-Kuan, Wang, Jiun-Shiang, Guo, Shu-Wei, Wu, Jiunn-Lin (2009)
Mathematical Problems in Engineering
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Sayeed, Shohel, Andrews, S., Besar, Rosli, Kiong, Loo Chu (2007)
Discrete Dynamics in Nature and Society
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Parvati, K., Prakasa Rao, B.S., Das, M.Mariya (2008)
Discrete Dynamics in Nature and Society
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Laskov, Lasko (2012)
Serdica Journal of Computing
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ACM Computing Classification System (1998): I.7, I.7.5. Recently, the digitalization of the astronomical scientific heritage has been considered an important task that can facilitate much researches in astronomy. The creation of digital libraries and databases of astronomical photographic plates brings up the problem of digitalization astronomical logbooks, since the data contained in them is crucial for the usage of the plates. An optical character recognition (OCR) system...