Unwrap Mosaics: A new representation for video editing
Alex Rav-Acha, Pushmeet Kohli, Carsten Rother, Andrew Fitzgibbon
In ACM Transactions on Graphics, 27(3), August 2008.
Abstract: We introduce a new representation for video which facilitates a number of common editing tasks. The representation has some of the power of a full reconstruction of 3D surface models from video, but is designed to be easy to recover from a priori unseen and uncalibrated footage. By modelling the image-formation process as a 2D-to-2D transformation from an object's texture map to the image, modulated by an object-space occlusion mask, we can recover a representation which we term the "unwrap mosaic." Many editing operations can be performed on the unwrap mosaic, and then re-composited into the original sequence, for example resizing objects, repainting textures, copying/cutting/pasting objects, and attaching effects layers to deforming objects.
Keyword(s): layers, mosaicing, motion estimation, video editing
Article URL: http://doi.acm.org/10.1145/1360612.1360616
BibTeX format:
@article{Rav-Acha:2008:UMA,
  author = {Alex Rav-Acha and Pushmeet Kohli and Carsten Rother and Andrew Fitzgibbon},
  title = {Unwrap Mosaics: A new representation for video editing},
  journal = {ACM Transactions on Graphics},
  volume = {27},
  number = {3},
  pages = {17:1--17:11},
  month = aug,
  year = {2008},
}
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