Adaptive snake model with automatic force rectification
Din-Yuen Chan 0, Cheng-Li Chiu, Wei-Ta Chien
0National Chiayi University, Chia-Yi, Taiwan, ROC
Available Online October 2006.
- https://doi.org/10.2991/jcis.2006.11How to use a DOI?
- Adaptive snake model, Concavity
- Most applications of snake model are domain-specific, while specifying fixed snake coefficients to an image in problem. In this paper, we propose content-triggered adaptive snake model (CASM) to lead all the parameters of snake model to be automatically adapted for various images in the noisy environment. First, the CASM applies a fast estimation method to find the possible ranges of gradient magnitudes of object boundary. As soon as the gradient magnitude of progressing snaxels falls in those ranges, CASM will adapt the weights within the snake forces of these snaxels according to encountered changes in gray levels and influences of various forces in the resided snake segments. And, it simultaneously renormalizes their external and internal forces. After primary convergence, CASM fires a compensation evolution to rectify the unqualified snaxels far from the object boundary. The unqualified snaxels, which are discovered by block-based texture analysis, can be pushed inward or pulled outward to the object border by so-called directional compensation evolution in revived evolutions. The simulation results demonstrate that CASM can improve the performance of snake very much, and outperform Gradient Vector Flow (GVF) in noisy images.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Din-Yuen Chan AU - Cheng-Li Chiu AU - Wei-Ta Chien PY - 2006/10 DA - 2006/10 TI - Adaptive snake model with automatic force rectification BT - 9th Joint International Conference on Information Sciences (JCIS-06) PB - Atlantis Press SP - 45 EP - 48 SN - 1951-6851 UR - https://doi.org/10.2991/jcis.2006.11 DO - https://doi.org/10.2991/jcis.2006.11 ID - Chan2006/10 ER -