Multigradient field active contour for multilayer detection of ultrasound rectal wall image
- Resource Type
- Conference
- Authors
- Di Xiao; Wan Sing Ng; Abeyratne, U.R.; Charles Bih-Shiou Tsang
- Source
- 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Engineering in medicine and biology Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE. 3:2645-2648 vol.3 2001
- Subject
- Bioengineering
Active contours
Nonhomogeneous media
Ultrasonic imaging
Surgery
Object detection
Neoplasms
Deformable models
Cancer
Clinical diagnosis
Image processing
- Language
- ISSN
- 1094-687X
This paper presents a novel multigradient field active contour algorithm with an extended ability for multiple object delineation, which overcomes some limitations of ordinary active contour models. One of the aims is to apply this technique for multilayer boundary detection of ultrasound rectal wall image, which is important in colorectal clinical diagnosis for rectal tumor staging. The core part in this algorithm is the proposal of multigradient vector field concept, which is used as image forces for alternate constraints on deformation of the active contour. Its application to the ultrasound rectal wall image is also given to illustrate the multiple layer detection ability.