Background Subtraction and Matting. © Yuri Bonder . 15-463: Computational Photography Alexei Efros, CMU, Fall 2005. “Smoke” (1996), the “photo album scene”. Moving in Time. Moving only in time, while not moving in space, has many advantages No need to find correspondences
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© Yuri Bonder
15-463: Computational Photography
Alexei Efros, CMU, Fall 2005
What is happening?
1. Extract Sprites (e.g using Intelligent Scissors in Photoshop)
2. Blend them into the composite (in the right order)
Pixels too large
Partial coverage or semi-transparency
p1 and p2