Depth from (de)focus by local transform

Thomas Chalumeau; Fabrice Meriaudeau; Olivier Laligant; Frederic Truchetet; Luciano da Fontoura Costa

doi:10.1117/12.571976

1 November 2004 Depth from (de)focus by local transform

Thomas Chalumeau, Fabrice Meriaudeau, Olivier Laligant, Frederic Truchetet, Luciano da Fontoura Costa

Proceedings Volume 5607, Wavelet Applications in Industrial Processing II; (2004) https://doi.org/10.1117/12.571976
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

The 3D reconstruction of a scene with 2D images requires several scene acquisitions or the use of specific lighting (structured light). The solution choice depends on the scene to be reconstructed. Unfortunately in the case of face reconstruction, health standards forbid the use of structured light; the elaboration of a multi-sensor system, such as stereovision is then required. In this paper, primary results about depth reconstruction from defocused images are presented. The used method relies on inverse ray tracing and provides results better than those obtained by using the conventional gradient based method.

Citation Download Citation

Thomas Chalumeau, Fabrice Meriaudeau, Olivier Laligant, Frederic Truchetet, and Luciano da Fontoura Costa "Depth from (de)focus by local transform", Proc. SPIE 5607, Wavelet Applications in Industrial Processing II, (1 November 2004); https://doi.org/10.1117/12.571976

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