This software implements an energy minimizing or snake model. The snake is controlled by its internal and
external energies. External energies are defined by image properties, such as image gradients, and attract the
snake toward themselves. Internal energies govern the characteristics of the snake and control the way the
snake reacts to the external energies. Fig. 1 shows a shoreline in a Landsat image delineated using this
snake model. Image gradient is used as the external energy, and continuity and curvature of the snake are
used as internal energies.
external energies. External energies are defined by image properties, such as image gradients, and attract the
snake toward themselves. Internal energies govern the characteristics of the snake and control the way the
snake reacts to the external energies. Fig. 1 shows a shoreline in a Landsat image delineated using this
snake model. Image gradient is used as the external energy, and continuity and curvature of the snake are
used as internal energies.
Fig. 1. (Top) A LANDSAT image with a sequence of points approximately selected along the shoreline.
These are the initial snake points. (Middle) Snake points after converging to the shoreline boundary.
(Bottom) The snake contour. The original LANDSAT image is courtesy of NASA.
These are the initial snake points. (Middle) Snake points after converging to the shoreline boundary.
(Bottom) The snake contour. The original LANDSAT image is courtesy of NASA.
To obtain a license for this software, please follow this link =>
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| Energy minimizing contour (snake) model |
| Image Registration and Fusion Systems |