A Discrete Region Competition Approach Incorporating Weak Edge Enhancement for Ultrasound Image Segmentation
Resource
PATTERN RECOGNITION LETTERS v.24 n.4-5 pp.693-704
Journal
Pattern Recognition Letters
Journal Volume
v.24
Journal Issue
n.4-5
Pages
693-704
Date Issued
2003
Date
2003
Author(s)
Abstract
Ultrasound images are inherently difficult to analyze due to their echo texture, speckle noise and weak edges. Taking into account these characteristics, we present a new region- based approach for ultrasound image segmentation. It is composed of two primary algorithms, discrete region competition and weak edge enhancement. The discrete region competition features four techniques, region competition, statistical modeling of speckle, early vision modeling, and discrete concepts. In addition, to prevent regions from leaking out of the desired area across weak edges, edges located on the slowly varying slope are enhanced according to their position on the slope and the length of the slope. This new approach has been implemented and verified on clinical ultrasound images.
Subjects
ultrasound image segmentation
speckle
early vision
region segmentation