Free Form Incident Light Fields

This paper presents methods for photo‐realistic rendering using strongly spatially variant illumination captured from real scenes. The illumination is captured along arbitrary paths in space using a high dynamic range, HDR, video camera system with position tracking. Light samples are rearranged int...

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Bibliographic Details
Published in:Computer graphics forum 2008-06, Vol.27 (4), p.1293-1301
Main Authors: Unger, J., Gustavson, S., Larsson, P., Ynnerman, A.
Format: Article
Language:English
Subjects:
Analysis
Camcorders
Computer graphics
Computer programming
Digitization and Image Capture
I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism
I4.1 [Image Processing and Computer Vision]: Digitization and Image Capture
Light
Studies
TECHNOLOGY
TEKNIKVETENSKAP
Three-Dimensional Graphics and Realism
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Summary:This paper presents methods for photo‐realistic rendering using strongly spatially variant illumination captured from real scenes. The illumination is captured along arbitrary paths in space using a high dynamic range, HDR, video camera system with position tracking. Light samples are rearranged into 4‐D incident light fields (ILF) suitable for direct use as illumination in renderings. Analysis of the captured data allows for estimation of the shape, position and spatial and angular properties of light sources in the scene. The estimated light sources can be extracted from the large 4D data set and handled separately to render scenes more efficiently and with higher quality. The ILF lighting can also be edited for detailed artistic control.
ISSN:0167-7055
1467-8659
1467-8659
DOI:10.1111/j.1467-8659.2008.01268.x