کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
470752 698558 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel automatic microcalcification detection technique using Tsallis entropy & a type II fuzzy index
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
A novel automatic microcalcification detection technique using Tsallis entropy & a type II fuzzy index
چکیده انگلیسی

This article investigates a novel automatic microcalcification detection method using a type II fuzzy index. The thresholding is performed using the Tsallis entropy characterized by another parameter ‘qq’, which depends on the non-extensiveness of a mammogram. In previous studies, ‘qq’ was calculated using the histogram distribution, which can lead to erroneous results when pectoral muscles are included. In this study, we have used a type II fuzzy index to find the optimal value of ‘qq’. The proposed approach has been tested on several mammograms. The results suggest that the proposed Tsallis entropy approach outperforms the two-dimensional non-fuzzy approach and the conventional Shannon entropy partition approach. Moreover, our thresholding technique is completely automatic, unlike the methods of previous related works. Without Tsallis entropy enhancement, detection of microcalcifications is meager: 80.21% Tps (true positives) with 8.1 Fps (false positives), whereas upon introduction of the Tsallis entropy, the results surge to 96.55% Tps with 0.4 Fps.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 60, Issue 8, October 2010, Pages 2426–2432
نویسندگان
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