spacetime_video_completion

# spacetime_video_completion - Space Time Video Completion by...

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Space Time Video Completion by Y. Wexler, E. Shechtman and M. Irani CVPR 2004

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Space-time points and patches Space point (x,y) Space-time point (x,y,t) Space-time patch One point contained in many patches
Problem Description Given some points in the space-time volume, find the remaining points Or, fill out the holes in the space-time volume Obvious solution: Interpolate with some mathematical model Why not?

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Applications Object removal from video Static or dynamic Restoration of old movies Missing entire frames or portions of frames Modify a visual story Modify a behavior
An example

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Global Visual Coherence A video sequence S has global visual coherence with some other sequence T if every local space-time patch in S can be found somewhere within the sequence T Measure of visual coherence
Problem formulation Input sequence S Holes T = T U H* = S* Goal: Select H* to maximize coherence between S* and T H S S H

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## This note was uploaded on 06/13/2011 for the course CAP 6412 taught by Professor Staff during the Spring '08 term at University of Central Florida.

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spacetime_video_completion - Space Time Video Completion by...

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