This paper presents a method to provide contrast enhancement in dense breast digitized images, which are difficult cases in testing of computer-aided diagnosis (CAD) schemes. Three techniques were developed, and data from each method were combined to provide a better result in relation to detection of clustered microcalcifications. Results obtained during the tests indicated that, by combining all the developed techniques, it is possible to improve the performance of a processing scheme designed to detect microcalcification clusters. It also allows operators to distinguish some of these structures in low-contrast images, which were not detected via conventional processing before the contrast enhancement. This investigation shows the possibility of improving CAD schemes for better detection of microcalcifications in dense breast images.
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Acknowledgments
The authors are grateful to Hospital das Clínicas at Ribeirão Preto (SP), Brazil, which allowed us to use the mammograms in the tests, with special thanks to the personnel from the section of X-ray image archives in that hospital. They are also grateful to FAPESP, which provided financial support to this research, and to Prof. Oswaldo N. Oliveira Jr. for his critical reading of the manuscript and suggestions.
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Nunes, F.L.S., Schiabel, H. & Goes, C.E. Contrast Enhancement in Dense Breast Images to Aid Clustered Microcalcifications Detection. J Digit Imaging 20, 53–66 (2007). https://doi.org/10.1007/s10278-005-6976-5
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DOI: https://doi.org/10.1007/s10278-005-6976-5