UM
Recovery of material under complex illumination conditions
Wu E.4; Sun Q.4; Liu X.1
2004-12-01
Source PublicationProceedings GRAPHITE 2004 - 2nd International Conference on Computer Graphics and Interactive Techniques in Australasia and Southeast Asia
Pages39-45
AbstractTo calculate the inter-reflection between real objects and virtual ones in augmented reality, recovery of material for the real objects is necessary. In this paper, an approach is proposed to recover the material properties from a single high dynamic range image for a homogeneous object under complex illumination conditions. By the method, we first acquire a high dynamic range image for the object, and one or a few environment maps in high dynamic range as illumination of the object. Then a simulated annealing algorithm is employed to solve the inverse rendering problem. Finally, we obtain optimal parameter values for the reflection model in approximating the material of the object. In the course of optimization, image-based lighting and ray tracing techniques are used, and as a result the inter-reflection can be calculated in convenience. In addition, the transparent and translucent properties can be also recovered.
KeywordAugmented Reality High Dynamic Range Image Image-based Lighting Inverse Rendering Reflection Model
URLView the original
Language英語
Fulltext Access
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Institute of Software Chinese Academy of Sciences
2.Universidade de Macau
3.Qufu Normal University
4.Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wu E.,Sun Q.,Liu X.. Recovery of material under complex illumination conditions[C],2004:39-45.
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