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: | článek article |
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) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Nikodym.pdf | Plný text | 1,88 MB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/6974
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