Read the following papers:
1.Poisson Image Editing ( Siggraph 2003 )
2.Defining Point-Set Surfaces ( Siggraph 2004 )
3."GrabCut" -- Interactive Foreground Extraction using
Iterated Graph Cuts ( Siggraph 2004 )
4.Interactive Image Segmentation using an adaptive
GMMRF model ( Siggraph 2004 )
5.Anisotropic Filtering of Non-Linear Surface Features
( EUROGRAPHICS 2004 )