Title: Multiple Live Video Environment Map Sampling
Authors: Nikodým, Tomáš
Havran, Vlastmil
Bittner, Jiří
Citation: Journal of WSCG. 2013, vol. 21, no. 2, p. 127-136.
Issue Date: 2013
Publisher: Václav Skala - UNION Agency
Document type: article
článek
URI: http://wscg.zcu.cz/WSCG2013/!_2013_J_WSCG-2.pdf
http://hdl.handle.net/11025/6974
ISSN: 1213-6972 (Hardcopy)
1213–6980 (CD-ROM)
1213–6964
Keywords: osvětlení založené na obrazech;rozšířená realita;vzorkovací algoritmy
Keywords in different language: image-based lighting;augmented reality;sampling algorithms
Abstract: We propose a framework that captures multiple high dynamic range environment maps and decomposes them into sets of directional light sources in real-time. The environment maps, captured and processed on stand-alone devices (e.g. Nokia N900 smartphone), are available to rendering engines via a server that provides wireless access. We compare three different importance sampling techniques in terms of the quality of sampling pattern, temporal coherence, and performance. Furthermore, we propose a novel idea of merging the directional light sources from multiple cameras by interpolation. We then discuss the pros and cons when using multiple cameras.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Volume 21, Number 2 (2013)

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