The wavelet transform as a multiresolution matched filter and zero-crossing detector for detecting microcalcifications in mammograms

Author

Strickland, Robin N. ; Hahn, Hee Il

Author_Institution

Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA

Volume

2

fYear

1995

fDate

20-23 Sep 1995

Firstpage

1047

Abstract

We show that a biorthogonal spline wavelet closely approximates the pre-whitening matched filter for detecting microcalcifications in digitized mammograms. The wavelet transform acts like a bank of such detectors operating at multiple scales. Object shape computed from zero-crossings produced by the same wavelet helps to reduce false alarms. Detection performance is tested on 40 mammograms digitized at 100 μm resolution

Keywords

diagnostic radiography; image resolution; image texture; matched filters; medical image processing; object detection; signal detection; splines (mathematics); wavelet transforms; biorthogonal spline wavelet; breast cancer; digitized mammograms; false alarms; mammograms; microcalcification detection; multiple scales; multiresolution matched filter; object shape; pre-whitening matched filter; resolution; wavelet transform; zero-crossing detector; Background noise; Detectors; Frequency; Markov processes; Matched filters; Object detection; Shape; Testing; Transfer functions; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.579463

Filename

579463