Adaptive Region Growing

1
Adaptive Region Growing

• Pooja Chatterjee

2
Region Growing
3
Region Growing

• FIX(Ri U Rj)true if mean(X)-mean(Y)ltT
• false otherwise
• General threshold
• Lack of detail
• Optimal threshold may not exist

4
Adaptive Region Growing

• ADAP(Ri U Rj)true if lj1ltmean(X)ltlj2 and
• li1ltmean(Y)ltli2
• l1 and l2 are adaptive ranges
• Lambda-determines li and lj

5
Merging

• Best Merge Edge edge of the two merging regions
  should be minimum
• Fast-Merge Edge of at least one of the adjacent
  regions should be minimum
• More efficient in noise reduction
• Allows parallel processing
• Reduction in processing time.

6
Performance Table
7
FAS BFS
8
FAS BFS