کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
504591 864319 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of the breast edge using areas enclosed by iso-intensity contours
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Identification of the breast edge using areas enclosed by iso-intensity contours
چکیده انگلیسی

The segmentation of a mammogram into background and breast is a crucial first step in the computer aided diagnosis of mammograms that has the advantage of simplifying further processing of the image (by eliminating the background) and also provides a reference for the alignment of views when two views are being compared. A novel method of segmenting the breast from the background by analysing the area enclosed by iso-intensity contours is presented. Results are evaluated by comparison with manual borders drawn by three radiologists for a set of 25 mammograms. The effect of different pre-processing methods, on the accuracy of automated borders, is investigated. The best methods yielded average root-mean-square differences between the manual and automated iso-intensity borders of 3.0±0.33.0±0.3 mm for the image set containing clear breast edges and 4.8±0.54.8±0.5 mm for the image set containing indistinct breast edges compared to 5.1±0.85.1±0.8 and 7.9±0.97.9±0.9 mm for the two data sets with no pre-processing. Results are also compared to those obtained from global thresholding.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 31, Issue 6, September 2007, Pages 390–400
نویسندگان
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