Multiple light sources and reflectance property estimation based on a mixture of spherical distributions

Hara Kenji, Ko Nishino, Katsushi Ikeuchi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

21 被引用数 (Scopus)

抄録

In this paper, we propose a new method for simultaneously estimating the illumination of the scene and the reflectance property of the object from a single image. We assume that the illumination consists of multiple point sources and the shape of the object is known. Unlike previous methods, we will recover not only the direction and intensity of the light sources, but also the number of light sources and the specular reflection parameter of the object. First, we represent the illumination on the surface of a unit sphere as a finite mixture of von Mises-Fisher distributions by deriving a spherical specular reflection model. Next, we estimate this mixture and the number of distributions. Finally, using this result as initial estimates, we refine the estimates using the original specular reflection model. We can use the results to render the object under novel lighting conditions.

本文言語英語
ホスト出版物のタイトルProceedings - 10th IEEE International Conference on Computer Vision, ICCV 2005
ページ1627-1634
ページ数8
DOI
出版ステータス出版済み - 12 1 2005
イベントProceedings - 10th IEEE International Conference on Computer Vision, ICCV 2005 - Beijing, 中国
継続期間: 10 17 200510 20 2005

出版物シリーズ

名前Proceedings of the IEEE International Conference on Computer Vision
II

その他

その他Proceedings - 10th IEEE International Conference on Computer Vision, ICCV 2005
国/地域中国
CityBeijing
Period10/17/0510/20/05

All Science Journal Classification (ASJC) codes

  • ソフトウェア
  • コンピュータ ビジョンおよびパターン認識

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