A characterization of inherent stereo ambiguities
| Author(s) : | Takeo Kanade Terence Sim Simon Baker, |
| Publisher : | N/A |
| Publication Date : | 2001 |
| ISSN : | N/A |
| Abstract : | The complete set of measurements that could ever be used by a stereo algorithm is the plenoptic function or lightfield. We give a concise characterization of when the lightfield 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. 1., |