Liver Segmentation Based on Snakes Model and Improved GrowCut Algorithm in Abdominal CT Image

Algorithm 1

Function Automata evolution rule.

1   BEGIN

2     for ∀𝑝∈𝑃

3     𝐼_𝑝^𝑡+1=𝐼^𝑡_𝑝;

4     𝜃_𝑝^𝑡+1=𝜃^𝑡_𝑝;

5     for ∀𝑞∈𝑁(𝑝)

6   if 𝑔𝐶_𝑝−𝐶_𝑞2⋅𝜃^𝑡_𝑞>𝜃^𝑡_𝑝

7   𝐼_𝑝^𝑡+1=𝐼^𝑡_𝑞;

8   𝜃^𝑡_𝑝+1=𝑔𝐶_𝑝−𝐶_𝑞2⋅𝜃^𝑡_𝑞

9              END if

10      END for

11    END for

12    END