•Filter out high frequency noise
•Input : noisy mesh (scanned or other)
•Output : smooth mesh
•How : filter out high frequency noise
•Laplacian smoothing Repeat for m iterations (for non boundary points):
𝒑𝒊←𝒑𝒊+𝝀𝑳𝒑𝒊
𝟎<𝝀<𝟏
Closed curved converges to single point