| Paper Abstract and Keywords |
| Presentation |
2025-06-06 15:25
High-speed reconstruction of entire 4D light fields on a glassless multi-view display with wider viewing angles toward virtual transparency of visual obstructions
Tessei Watanabe (TUS), Kazuya Kodama (NII), Takayuki Hamamoto (TUS) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Virtual transparency of visual obstructions can be achieved by light field transmission based on a combination of acquisition and reproduction for 3D visual media. In order to develop an inexpensive system toward virtual transparency, we have previously proposed real-time reconstruction of entire 4D light fields suitable for glassless multi-view displays from point cloud data acquired by a single RGB-D camera. Actually, by applying appropriate geometrical transformation to the acquired RGB-D data, we obtain a simple 3D array while effectively reducing their redundancy. Moreover, each sub-aperture image on 4D light fields can be reconstructed by just structured analysis searching parallel lines within the 3D array, where its computational cost is significantly suppressed. In this paper, we improve our proposed method without additional computational cost for robustly reproducing 4D light fields on a glassless multi-view display with wider viewing angles. Specifically, each sub-aperture image is corrected by changing its origin and scale to suppress crosstalk for a certain viewing distance while keeping wider viewing angles on our multi-view displays. Fortunately, since such correction can be easily integrated with pre-processing to prepare lookup tables for searching the 3D array mentioned above, our improved virtual transparency is still expected to work in real time. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
light field / depth camera / point cloud / real-time / augmented reality / / / |
| Reference Info. |
ITE Tech. Rep. |
| Paper # |
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| Date of Issue |
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| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IST ME IEICE-IE IEICE-BioX IEICE-SIP IEICE-MI |
| Conference Date |
2025-06-05 - 2025-06-06 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IEICE-IE |
| Conference Code |
2025-06-IST-ME-IE-BioX-SIP-MI |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
High-speed reconstruction of entire 4D light fields on a glassless multi-view display with wider viewing angles toward virtual transparency of visual obstructions |
| Sub Title (in English) |
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| Keyword(1) |
light field |
| Keyword(2) |
depth camera |
| Keyword(3) |
point cloud |
| Keyword(4) |
real-time |
| Keyword(5) |
augmented reality |
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| 1st Author's Name |
Tessei Watanabe |
| 1st Author's Affiliation |
Tokyo University of Science (TUS) |
| 2nd Author's Name |
Kazuya Kodama |
| 2nd Author's Affiliation |
National Institute of Informatics (NII) |
| 3rd Author's Name |
Takayuki Hamamoto |
| 3rd Author's Affiliation |
Tokyo University of Science (TUS) |
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| Speaker |
Author-1 |
| Date Time |
2025-06-06 15:25:00 |
| Presentation Time |
25 minutes |
| Registration for |
IEICE-IE |
| Paper # |
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| Volume (vol) |
vol.49 |
| Number (no) |
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| Page |
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