Title :
Harmonic gradient vector flow external force for snake model
Author :
Wang, Y. ; Jia, Y. ; Liu, L.
Author_Institution :
Tianjin Univ. of Technol., Tianjin
Abstract :
Gradient vector flow (GVF), an external force for the snake model, is reformulated by replacing the smoothness constraint with a harmonic one, which is related to the divergence and the curl of the vector field. The proposed formulation provides some new insights into the nature of the GVF.
Keywords :
gradient methods; image processing; harmonic gradient vector flow; image processing; snake model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081650
