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CVIU
2010

Shading constraint improves accuracy of time-of-flight measurements

13 years 11 months ago
Shading constraint improves accuracy of time-of-flight measurements
We describe a technique for improving the accuracy of range maps measured by time-of-flight (TOF) cameras. The technique is based on the observation that the range map and intensity image measured by a TOF camera are not independent but are linked by the shading constraint: If the reflectance properties of the surface are known, a certain range map implies a corresponding intensity image. We impose the shading constraint using a probabilistic model of image formation and find a maximum a posteriori estimate for the true range map. We present results on both synthetic and real TOF camera images that demonstrate the robust shape estimates achieved by the algorithm.
Martin Böhme, Martin Haker, Thomas Martinetz,
Added 10 Dec 2010
Updated 10 Dec 2010
Type Journal
Year 2010
Where CVIU
Authors Martin Böhme, Martin Haker, Thomas Martinetz, Erhardt Barth
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