Coded Aperture Optimization for Mitigating Aberration in Large-format Fresnel Lens towards Shadowless Projection Mapping

Kusuyama, Hiroki; Nakamura, Tomoya; Iwai, Daisuke

Proceedings of SPIE - The International Society for Optical Engineering, 2026, 13821, 1382106

アクセス数:107件（2026-07-27 21:49 集計）

固定URL: https://hdl.handle.net/11094/104860

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論文情報

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タイトル
Coded Aperture Optimization for Mitigating Aberration in Large-format Fresnel Lens towards Shadowless Projection Mapping
著者
ORCID
0009-0007-9406-2120 0009-0007-9406-2120
researchmap permalink
hiroki_kusuyama hiroki_kusuyama
Scopus Author ID
58931022300 58931022300
著者名
Kusuyama, Hiroki
NRID
1000070756709 1000070756709
ORCID
0000-0001-8915-3043 0000-0001-8915-3043
researchmap permalink
tnakamura1104 tnakamura1104
Scopus Author ID
55512501400 55512501400
著者名
Nakamura, Tomoya
NRID
1000090504837 1000090504837
ORCID
0000-0002-3493-5635 0000-0002-3493-5635
researchmap permalink
daisukeiwai daisukeiwai
Scopus Author ID
55931917600 55931917600
著者名
Iwai, Daisuke
キーワード等
Coded aperture projection
Differentiable ray tracing
Fresnel lens-based shadowless projector
内容
Kusuyama H., Nakamura T., Iwai D.. Coded Aperture Optimization for Mitigating Aberration in Large-format Fresnel Lens towards Shadowless Projection Mapping. Proceedings of SPIE - The International Society for Optical Engineering 13821, 1382106 (2026); https://doi.org/10.1117/12.3077974.
抄録
Projection mapping (PM), a spatial augmented reality technique, allows multiple users to experience augmentation without wearing devices. However, when the users' bodies occlude projection lights, the projected imagery becomes completely invisible due to cast shadows. One approach to shadowless PM is to use a large-aperture (LA) projector that focuses projection light across a wide viewing angle with a large-format Fresnel lens. However, LA projectors often suffer from significant blur in projected images due to lens aberrations, stray light, and veiling glare. In this study, we address the projection blur by sequentially optimizing the coded aperture and the pre-sharpening process of the projection images. We designate a method for simulating the point spread function of the LA projector using differentiable ray tracing, optimizing both the coded mask pattern and the projection image. Finally, we validate the effectiveness of these techniques through simulation experiments.
会議情報
会議名
The International Society for Optical Engineering, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR)
回次
7
主催機関
The International Society for Optical Engineering
開催期間
19-20 January 2026
開催地
San Francisco
開催国
アメリカ合衆国
出版者
SPIE
収録物名
Proceedings of SPIE - The International Society for Optical Engineering
巻(号)
13821
ページ
1382106
刊行年月
2026-03-05
言語
英語
ハンドルURL
https://hdl.handle.net/11094/104860
PISSN
0277786X
eISSN
1996756X
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1117/12.3077974
アクセス権
open access
出版タイプ
Version of Record
カテゴリ
会議発表論文 Conference Paper