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3DPVT
2006
IEEE

Light Source Calibration for IBR and BTF Acquisition Setups

8 years 11 months ago
Light Source Calibration for IBR and BTF Acquisition Setups
Working with IBR/BTF data requires a complete calibration. Modern setups speed up recordings by using multiple lamps and cameras. Therefore, the calibration task gets more time consuming and challenging, especially for an accurate calibration of multiple light sources. Most works are dedicated to the calibration of cameras, whereas the light field calibration problem remains as a rule overlooked. Our experiments have shown that the spatial variance of light strength can be vigorous, inducing serious damage to the IBR/BTF data. We propose a novel method based on Helmholtz reciprocity, which derives light field information directly from the target IBR/BTF data rather than from specially dedicated calibration objects. Instead of repeating the recording of a huge number of images, only one additional image is needed.
Alexander Neubeck, Alexey Zalesny, Luc J. Van Gool
Added 10 Jun 2010
Updated 10 Jun 2010
Type Conference
Year 2006
Where 3DPVT
Authors Alexander Neubeck, Alexey Zalesny, Luc J. Van Gool
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