Journal article
Use of two-dimensional phase-only filters and compounding for speckle reduction and edge detection in ultrasonic B-scan images
Applied optics. Optical technology and biomedical optics, v 48(29), pp 5589-5597
10 Oct 2009
PMID: 19823243
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Phase-only filters (POF) are studied for speckle reduction and edge detection in ultrasonic images. A methodology is developed for selecting the filters and compounding the filtered outputs. Studies on four speckled images show that the parametric images of compounded phases highlighted the boundaries. Estimating the heterogeneity index defined as the ratio of the arithmetic to the geometric mean of the magnitudes, the boundaries were also highlighted, providing a second means of detecting boundaries. This technique based on diversity created through a bank of POF reduces the speckle as well as highlights the boundaries of targetlike regions.
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Details
- Title
- Use of two-dimensional phase-only filters and compounding for speckle reduction and edge detection in ultrasonic B-scan images
- Creators
- P M Shankar - Department of Electrical and Computer Engineering, Drexel University, Philadelphia,Pennsylvania 19104, USA. pshankar@coe.drexel.edu
- Publication Details
- Applied optics. Optical technology and biomedical optics, v 48(29), pp 5589-5597
- Publisher
- Optica (OSA); United States
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000270667800022
- Scopus ID
- 2-s2.0-70350327862
- Other Identifier
- 991014878236204721
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- Web of Science research areas
- Optics