Multigradient field-active contour model for multilayer boundary detection of ultrasound rectal wall image.
Di XiaoWan Sing NgUdantha R. AbeyratneCharles B. TsangPublished in: J. Electronic Imaging (2005)
Keyphrases
- boundary detection
- active contour model
- image segmentation
- segmentation method
- berkeley segmentation dataset
- active contours
- edge map
- multiscale
- input image
- force field
- image analysis
- energy functional
- boundary extraction
- gradient vector flow
- image features
- occlusion boundaries
- vector field
- three dimensional
- geodesic active contours
- ultrasound images
- energy function
- detection algorithm
- edge detection
- contrast enhancement
- level set method
- circular hough transform
- computer vision
- image edges
- bounding box
- shape prior
- region growing
- image matching
- pairwise
- object recognition