Announcements
Review on Thurs
Project 4
due Wed night
no later than Friday night (with late days)
Extra office hour:  Friday 4-5

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View Interpolation
Problem Statement
Input:  two views of an unknown rigid scene
from unknown viewpoints
Output:  in-between views from a virtual camera

Image Morphing

Image Morphing for View Synthesis?
We want physically-correct view interpolations
Can image morphing do this?

Special Case:  Parallel Cameras

View Morphing in 3 Steps

View Morphing in 3 Steps
1.  Prewarp
         align views

View Morphing in 3 Steps
1.  Prewarp
         align views
2.  Morph
         move camera

View Morphing in 3 Steps
1.  Prewarp
         align views
2.  Morph
         move camera
3.  Postwarp
         point camera

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Videos
View morphing
Blanz & Vetter (SIGGRAPH 99)
MIT single view (SIGGRAPH 01)
Yu inv-radiosity (SIGGRAPH 00)
Debevec relight (SIGGRAPH 02)
Video rewrite (SIGGRAPH 97)
Vision-based pong (Seitz tape)
Debevec IBMR in art & cinema tape
Debevec face relighting demo