Abstract
One-shot structured light systems for 3D depth reconstruction often use a periodic illumination pattern. Finding corresponding points in the image and projector plane, needed for a triangulation, boils down to phase estimation. The 2πN ambiguities in the phase cause ambiguities in the reconstructed depth. This paper solves these ambiguities by constraining the solution space to scenes that only contain objects with flat surfaces, i.e. polyhedrons. We develop a new particle filter that estimates the depth and solves the ambiguity problem. A state model is proposed for piecewise continuous signals. This state model is worked out to find the optimal proposal density of the particle filter. The approach is validated with a demonstration.
Original language | English |
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Title of host publication | Proceedings of the International Conference on Computer Vision Theory and Applications (VISAPP-2011) |
Publisher | SCITEPRESS |
Pages | 531-537 |
Number of pages | 7 |
Volume | 1 |
ISBN (Print) | 978-989-8425-47-8 |
DOIs | |
Publication status | Published - 15 Jul 2011 |
Event | 6th International Conference on Computer Vision Theory and Application, VISAPP 2011 - Vilamoura, Portugal Duration: 5 Mar 2011 → 7 Mar 2011 |
Conference
Conference | 6th International Conference on Computer Vision Theory and Application, VISAPP 2011 |
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Abbreviated title | VISAPP 2011 |
Country/Territory | Portugal |
City | Vilamoura |
Period | 5/03/11 → 7/03/11 |
Keywords
- 3D depth reconstruction
- Jump Markov linear systems
- One-shot structured light system
- Particle filtering
- SCS-Safety