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CVPR
2012
IEEE

Modulation transfer function of patch-based stereo systems

9 years 2 months ago
Modulation transfer function of patch-based stereo systems
A widely used technique to recover a 3D surface from photographs is patch-based (multi-view) stereo reconstruction. Current methods are able to reproduce fine surface details, they are however limited by the sampling density and the patch size used for reconstruction. We show that there is a systematic error in the reconstruction depending on the details in the unknown surface (frequencies) and the reconstruction resolution. For this purpose we present a theoretical analysis of patch-based depth reconstruction. We prove that our model of the reconstruction process yields a linear system, allowing us to apply the transfer (or system) function concept. We derive the modulation transfer function theoretically and validate it experimentally on synthetic examples using rendered images as well as on photographs of a 3D test target. Our analysis proves that there is a significant but predictable amplitude loss in reconstructions of fine scale details. In a first experiment on real-world ...
Ronny Klowsky, Arjan Kuijper, Michael Goesele
Added 28 Sep 2012
Updated 28 Sep 2012
Type Journal
Year 2012
Where CVPR
Authors Ronny Klowsky, Arjan Kuijper, Michael Goesele
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