クワハラ　メエコ   KUWAHARA Meeko   桑原　明栄子    所属   情報学部 情報学科    職種   准教授
言語種別	英語
発行・発表の年月	2026/06
形態種別	学術雑誌
査読	査読あり
招待論文	招待あり
標題	A Handheld, Light-Adaptive Artwork Viewer Using BRDF-Based Real-Time Relighting
執筆形態	共著
掲載誌名	Culture and Computing: 14th International Conference, C&C 2026, Held as Part of the 28th HCI International Conference, HCII 2026, Montreal, QC, Canada, July 26–31, 2026, Proceedings, Part I
掲載区分	国外
出版社・発行元	Springer Nature
巻・号・頁	pp.499-513
著者・共著者	Kyudong Sim, Yohei Ikeda, Jong-Il Park, Yohei Seta, Masaki Hayashi & Meeko Kuwahara
概要	We previously proposed a tablet-based handheld artwork viewing system designed to recreate the experience of holding and viewing a physical artwork. The system adapts the appearance of the displayed artwork to changes in the ambient illuminance of the viewing environment. In this paper, we extend the system by introducing a real-time rendering method based on the Bidirectional Reflectance Distribution Function (BRDF) to reproduce the optical and material properties of artworks more faithfully. Normal and specular maps are generated to represent subtle variations in surface geometry and gloss, allowing the artwork to be reconstructed as relightable data. The proposed method dynamically renders lighting-dependent changes in shading and highlights, thereby providing a more natural and visually rich digital artwork viewing experience.