Conference proceeding
iDensity: an automatic Gabor filter-based algorithm for breast density assessment
Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9416, pp.941607-941607-11
03/17/2015
DOI: 10.1117/12.2083149
Abstract
Abstract Although many semi-automated and automated algorithms for breast density assessment have been recently proposed, none of these have been widely accepted. In this study a novel automated algorithm, named iDensity, inspired by the human visual system is proposed for classifying mammograms into four breast density categories corresponding to the Breast Imaging Reporting and Data System (BI-RADS). For each BI-RADS category 80 cases were taken from the normal volumes of the Digital Database for Screening Mammography (DDSM). For each case only the left medio-lateral oblique was utilized. After image calibration using the provided tables of each scanner in the DDSM, the pectoral muscle and background were removed. Images were filtered by a median filter and down sampled. Images were then filtered by a filter bank consisting of Gabor filters in six orientations and 3 scales, as well as a Gaussian filter. Three gray level histogram-based features and three second order statistics features were extracted from each filtered image. Using the extracted features, mammograms were separated initially separated into two groups, low or high density, then in a second stage, the low density group was subdivided into BI-RADS I or II, and the high density group into BI-RADS III or IV. The algorithm achieved a sensitivity of 95% and specificity of 94% in the first stage, sensitivity of 89% and specificity of 95% when classifying BIRADS I and II cases, and a sensitivity of 88% and 91% specificity when classifying BI-RADS III and IV.
Details
- Title: Subtitle
- iDensity: an automatic Gabor filter-based algorithm for breast density assessment
- Creators
- Ziba Gamdonkar - The Univ. of Sydney (Australia)Kevin Tay - The Univ. of Sydney (Australia)Will Ryder - The Univ. of Sydney (Australia)Patrick C Brennan - The Univ. of Sydney (Australia)Claudia Mello-Thoms - The Univ. of Sydney (Australia)
- Contributors
- Claudia R Mello-Thoms (Editor) - The Univ. of Sydney (Australia)Matthew A Kupinski (Editor) - College of Optical Sciences, The Univ. of Arizona (United States)
- Resource Type
- Conference proceeding
- Publication Details
- Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9416, pp.941607-941607-11
- Publisher
- SPIE
- DOI
- 10.1117/12.2083149
- ISSN
- 1605-7422
- Language
- English
- Date published
- 03/17/2015
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984051534202771
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