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A Characterization of Inherent Stereo Ambiguities
S. Baker, T. Sim, and T. Kanade
Proceedings of the 8th IEEE International Conference on Computer Vision (ICCV'01), Vancouver, British Columbia, July, 2001.

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The complete set of measurements that could ever be used by a stereo algorithm is the plenoptic function or light-field. We give a concise characterization of when the light-field of a Lambertian scene uniquely determines its shape, and, conversely, when stereo is inherently ambiguous. We show that stereo computed from the complete light-field is ambiguous if and only if the scene is radiating light of a constant intensity (and color) over an extended region.

Sponsor: US Office of Naval Research
Grant ID: N00014-00-1-0915

Associated center: VASC
Associated lab/group: Human Identification at a Distance
Associated projects: Photometric Limits on Computer Vision and Light-fields

S. Baker, T. Sim, and T. Kanade, "A Characterization of Inherent Stereo Ambiguities," Proceedings of the 8th IEEE International Conference on Computer Vision (ICCV'01), Vancouver, British Columbia, July, 2001.

@inproceedings{Baker_2001_3538,
   author = "Simon Baker and Terence Sim and Takeo Kanade",
   title = "A Characterization of Inherent Stereo Ambiguities",
   booktitle = "Proceedings of the 8th IEEE International Conference on Computer Vision (ICCV'01)",
   month = "July",
   year = "2001",
   address = "Vancouver, British Columbia"
}