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| Presentation | 2017-10-04 16:55 Real-Time Reconstruction Processing in Lensless Light-Field Camera Hiromi Nishiura, Koji Yamasaki, Kazuyuki Tajima, Yusuke Nakamura, Takeshi Shimano (Hitachi)  CPM2017-66 Link to ES Tech. Rep. Archives: CPM2017-66 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have been developing a lensless light-field imaging with Fresnel zone aperture (FZA) in front of an image sensor. This imaging method can reconstruct the original object image by using 2D FFT which is known as a calculation requiring low computing power. In this configuration, the larger the number of sensor pixels is, the more the resolution of the reconstructed image improves; however, the higher computing power will be required. Therefore, in this paper, we propose a computational complexity reduction method and a parallel computing method with graphics processing units (GPU) to realize a real-time reconstruction processing. As the result, feasibility of the methods was experimentally confirmed by using a prototype which can reconstruct an image from a 4M-pixel sensor image at over 30 fps. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Lensless / Light field / Fresnel zone aperture / Reconstruction / Moiré / FFT / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 224, CPM2017-66, pp. 33-38, Oct. 2017. | |
| Paper # | CPM2017-66 | |
| Date of Issue | 2017-09-27 (CPM) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CPM2017-66 Link to ES Tech. Rep. Archives: CPM2017-66 |
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| Conference Information | |
| Committee | CPM |
| Conference Date | 2017-10-04 - 2017-10-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | CPM |
| Conference Code | 2017-10-CPM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Real-Time Reconstruction Processing in Lensless Light-Field Camera |
| Sub Title (in English) | |
| Keyword(1) | Lensless |
| Keyword(2) | Light field |
| Keyword(3) | Fresnel zone aperture |
| Keyword(4) | Reconstruction |
| Keyword(5) | Moiré |
| Keyword(6) | FFT |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiromi Nishiura |
| 1st Author's Affiliation | Hitachi,Ltd (Hitachi) |
| 2nd Author's Name | Koji Yamasaki |
| 2nd Author's Affiliation | Hitachi,Ltd (Hitachi) |
| 3rd Author's Name | Kazuyuki Tajima |
| 3rd Author's Affiliation | Hitachi,Ltd (Hitachi) |
| 4th Author's Name | Yusuke Nakamura |
| 4th Author's Affiliation | Hitachi,Ltd (Hitachi) |
| 5th Author's Name | Takeshi Shimano |
| 5th Author's Affiliation | Hitachi,Ltd (Hitachi) |
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| Speaker | Author-1 |
| Date Time | 2017-10-04 16:55:00 |
| Presentation Time | 25 minutes |
| Registration for | CPM |
| Paper # | CPM2017-66 |
| Volume (vol) | vol.117 |
| Number (no) | no.224 |
| Page | pp.33-38 |
| #Pages | 6 |
| Date of Issue | 2017-09-27 (CPM) |
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