Active contour model with gradient directional information: directional snake.
Hyun Wook ParkTodd N. SchoepflinYongmin KimPublished in: IEEE Trans. Circuits Syst. Video Technol. (2001)
Keyphrases
- directional information
- active contour model
- active contours
- edge map
- energy minimization
- wavelet transform
- gradient vector flow
- snake model
- region growing
- spatial objects
- segmentation method
- edge detection
- subband
- force field
- gvf snake
- multiresolution
- external force
- deformable contour
- dct coefficients
- object boundaries
- contourlet transform
- energy function
- level set method
- image gradient
- multiscale
- image analysis