Japanese / English

文献の詳細

論文の言語 英語
著者 Kazunori Minatani, Kosei Takaishi, and Masakazu Iwamura
論文名 Photo-based 2.5D Reliefs for TeachingPerspective and Depth to the Visually Impaired
論文誌名 Proc. the 22nd International Conference on Geometry and Graphics (ICGG 2026)
発表場所 Zagreb, Croatia
査読の有無
発表の種類 口頭発表
年月 2026年8月
要約 The visually impaired have limited access to understanding vision-based spatial phenomena such as linear perspective, depth cues, and occlusion, which sighted people routinely use to interpret images. While prior work has highlighted the importance of making perspec- tival images accessible to blind learners, it has provided few concrete, generalizable strategies for systematically teaching pictorial space. We propose a practical and scalable approach that uses photographs (rather than canonical paintings) as the source of tactile educational material. Our pipeline estimates depth from a photograph to generate a 2.5D relief height ?eld, then fabricates tactile models via 3D printing. This photo-based route is (i) general, because photographs can be captured on-demand to exemplify speci?c spatial cues in a staged and progres- sively structured manner, and (ii) practical, because it reduces manual production burden compared to handcrafted tactile translations. We in- tegrate lessons from tactile picture perception research and present a stepwise pedagogy that begins with monocular perspective cues and ex- tends toward binocular depth concepts. We further propose a qualitative evaluation framework based on think-aloud protocols, semi-structured interviews, and thematic analysis to assess educational e?cacy of tactile photographs.
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