NDLI: Lighting interpolation by shadow morphing using intrinsic lumigraphs

Content Provider	IEEE Xplore Digital Library
Author	Matsushita, Y. Sing Bing Kang Lin, S. Heung-Yeung Shum Xin Tong
Copyright Year	2002
Description	Author affiliation: Inst. of Ind. Sci., Univ. of Tokyo, Japan (Matsushita, Y.)
Abstract	Densely-sampled image representations such as the light field or lumigraph have been effective in enabling photorealistic image synthesis. Unfortunately, lighting interpolation with such representations has not been shown to be possible without the use of accurate 3D geometry and surface reflectance properties. In this paper we propose an approach to image-based lighting interpolation that is based on estimates of geometry and shading from relatively few images. We decompose captured light fields at different lighting conditions into intrinsic images (reflectance and illumination images), and estimate view-dependent scene geometries using multi-view stereo. We call the resulting representation an intrinsic lumigraph. In the same way that the lumigraph uses geometry to permit more accurate view interpolation, the intrinsic lumigraph uses both geometry and intrinsic images to allow high-quality interpolation at different views and lighting conditions. Joint use of geometry and intrinsic images is effective in the computation of shadow masks for shadow prediction at new lighting conditions. We illustrate our approach with images of real scenes.
Starting Page	58
Ending Page	65
File Size	3078938
Page Count	8
File Format	PDF
ISBN	0769517846
DOI	10.1109/PCCGA.2002.1167839
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interpolation Layout Geometry Rendering (computer graphics) Asia Lighting Cameras Solid modeling Shape Image representation
Content Type	Text
Resource Type	Article

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