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Level set evolution

Snake equation:

- Speed up calculations

Important aspects when implementing deformable models:

What are snakes?

Name an implicit deformable model:

Level-sets

Disadvantages of level set:

Can handle n-dimensional problems
Can handle topological changes

Snake energy equation:

Speeding up level sets:

Pros and cons of segmentation modeled by conturs:

Image derivatives to track borders

Name an explicit deformable model:

Snakes

Advantages of level set:

Concept of snake evolution:

Snakes uses an implicit modelling
Snake based deformation is computationally expensive

Advantages and disadvantages of snakes:

Level set:

Basic Idea of deformable models? What we aim for?

- Contour deformation

Function of snakes:

Initial circle is initialized in center à after n iterations, the snake evolves to fit the image