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Proceedings Paper

Effect of spatial noise of medical grade Liquid Crystal Displays (LCD) on the detection of micro-calcification
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Paper Abstract

This presentation describes work in progress that is the result of an NIH SBIR Phase 1 project that addresses the wide- spread concern for the large number of breast-cancers and cancer victims [1,2]. The primary goal of the project is to increase the detection rate of microcalcifications as a result of the decrease of spatial noise of the LCDs used to display the mammograms [3,4]. Noise reduction is to be accomplished with the aid of a high performance CCD camera and subsequent application of local-mean equalization and error diffusion [5,6]. A second goal of the project is the actual detection of breast cancer. Contrary to the approach to mammography, where the mammograms typically have a pixel matrix of approximately 1900 x 2300 pixels, otherwise known as FFDM or Full-Field Digital Mammograms, we will only use sections of mammograms with a pixel matrix of 256 x 256 pixels. This is because at this time, reduction of spatial noise on an LCD can only be done on relatively small areas like 256 x 256 pixels. In addition, judging the efficacy for detection of breast cancer will be done using two methods: One is a conventional ROC study [7], the other is a vision model developed over several years starting at the Sarnoff Research Center and continuing at the Siemens Corporate Research in Princeton NJ [8].

Paper Details

Date Published: 11 September 2009
PDF: 9 pages
Proc. SPIE 7450, Penetrating Radiation Systems and Applications X, 74500G (11 September 2009); doi: 10.1117/12.830043
Show Author Affiliations
Hans Roehrig, The Univ. of Arizona (United States)
Jiahua Fan, GE Healthcare (United States)
William J. Dallas, The Univ. of Arizona (United States)
Elizabeth A. Krupinski, The Univ. of Arizona (United States)
Jeffrey Johnson, Siemens Corporate Research (United States)


Published in SPIE Proceedings Vol. 7450:
Penetrating Radiation Systems and Applications X
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Richard C. Schirato, Editor(s)

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