A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring

Kusuyama, Hiroki; Kageyama, Yuta; Iwai, Daisuke et al.

IEEE Transactions on Visualization and Computer Graphics, 2024, 30(11), 7031-7041

Number of Access:440（2025-07-27 02:54 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98456

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
IEEETransVisualComGraph_30_11_7031 pdf None 2.98 MB 304 2024.11.19  
Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title
A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring
Creator
CreatorName
Kusuyama, Hiroki
CreatorName
Kageyama, Yuta
NRID
1000090504837 1000090504837
researchmap permalink
daisukeiwai daisukeiwai
Scopus Author ID
55931917600 55931917600
CreatorName
Iwai, Daisuke
NRID
1000090187188 1000090187188
researchmap permalink
read0076311 read0076311
Scopus Author ID
56192879500 56192879500
CreatorName
Sato, Kosuke
Description
Kusuyama H., Kageyama Y., Iwai D., et al. A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring. IEEE Transactions on Visualization and Computer Graphics 30, 7031 (2024); https://doi.org/10.1109/TVCG.2024.3456170.
Abstract
This paper proposes a projection system that optically removes the cast shadow in projection mapping. Specifically, we realize the large-aperture (LA) projection using a large-format Fresnel lens to suppress cast shadows by condensing the projection light from a wide viewing angle. However, the resolution and contrast of the projected results are significantly degraded by defocus blur, veiling glare, and stray light caused by the aberration of an LA Fresnel lens. To solve the technical problems, we employ two different approaches: optical and digital image processing methods. First, we introduce a residual projector with a typical aperture lens on the same optical axis as the LA projector, projecting the residual (i.e., high-frequency) components attenuated in the LA projection. These projectors play different roles in shadow suppression and blur compensation, both achieved by projecting simultaneously. Secondly, we optimize the pair of projection images that can balance the shadow suppression and deblurring performance of our projection system. We implemented a proof-of-concept prototype and validated the above-mentioned techniques through projection experiments and a user study.
Publisher
IEEE Computer Society
Source Title
IEEE Transactions on Visualization and Computer Graphics
Volume (Issue)
30(11)
Page
7031-7041
Date of Issued
2024-11-01
Language
English
Handle URL
https://hdl.handle.net/11094/98456
PISSN
10772626
eISSN
19410506
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1109/TVCG.2024.3456170
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article