Shape and Reflectance from Scattering in Participating Media

Evrenci, Deniz; Iiyama, Masaaki; Funatomi, Takuya; Minoh, Michihiko

doi:10.1109/3dv.2013.32

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2014

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“…Underwater projectors serve as reverse cameras while providing additional textures on poorly-textured targets. To this end, this paper focuses on the refraction caused by flat housings, while underwater photography involves other complex light events such as scattering [3], [16], [17], specularity [4], and transparency [13]. This is because one of the main difficulties in image-based 3D surface Fig.…”

Section: Introductionmentioning

confidence: 99%

Underwater 3D Surface Capture Using Multi-view Projectors and Cameras with Flat Housings

Kawahara

Nobuhara

Matsuyama

2014

IPSJ Transactions on Computer Vision and Applications

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This paper is aimed at presenting a 3D surface capture algorithm of underwater objects using multiple projectors and cameras with flat housings. We use a pixel-wise varifocal model to realize an efficient forward projection in order to explicitly account for refractions caused by flat housings and to improve appearance-based correspondence estimations. We propose a practical calibration procedure of underwater projectors, and show a real system which proves our concept.

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