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Colour Helmholtz Stereopsis for Reconstruction of Dynamic Scenes with Arbitrary Unknown Reflectance

Roubtsova, Nadejda and Guillemaut, Jean-Yves (2016) Colour Helmholtz Stereopsis for Reconstruction of Dynamic Scenes with Arbitrary Unknown Reflectance International Journal of Computer Vision, 124. pp. 18-48.

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Abstract

Helmholtz Stereopsis is a powerful technique for reconstruction of scenes with arbitrary re ectance properties. However, previous formulations have been limited to static objects due to the requirement to se- quentially capture reciprocal image pairs (i.e. two im- ages with the camera and light source positions mu- tually interchanged). In this paper, we propose Colour Helmholtz Stereopsis - a novel framework for Helmholtz Stereopsis based on wavelength multiplexing. To ad- dress the new set of challenges introduced by multispec- tral data acquisition, the proposed Colour Helmholtz Stereopsis pipeline uniquely combines a tailored pho- tometric calibration for multiple camera/light source pairs, a novel procedure for spatio-temporal surface chromaticity calibration and a state-of-the-art Bayesian formulation necessary for accurate reconstruction from a minimal number of reciprocal pairs. In this frame- work, re ectance is spatially unconstrained both in terms of its chromaticity and the directional component dependent on the illumination incidence and viewing angles. The proposed approach for the rst time en- ables modelling of dynamic scenes with arbitrary un- known and spatially varying re ectance using a practi- cal acquisition set-up consisting of a small number of cameras and light sources. Experimental results demon- strate the accuracy and exibility of the technique on a variety of static and dynamic scenes with arbitrary un- known BRDF and chromaticity ranging from uniform to arbitrary and spatially varying.

Item Type: Article
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Roubtsova, Nadejdan.s.roubtsova@surrey.ac.ukUNSPECIFIED
Guillemaut, Jean-YvesJ.Guillemaut@surrey.ac.ukUNSPECIFIED
Date : 20 September 2016
Funders : Engineering and Physical Sciences Research Council
Identification Number : 10.1007/s11263-016-0951-0
Copyright Disclaimer : © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Uncontrolled Keywords : 3D reconstruction · Dynamic scenes · Arbitrary BRDF · Helmholtz Stereopsis
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 14 Sep 2016 15:08
Last Modified : 15 Aug 2017 07:56
URI: http://epubs.surrey.ac.uk/id/eprint/812173

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