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| Presentation | 2010-10-05 16:10 [Invited Talk] Image Restoration using Reconstruction-based Super Resolution -- Multi-frame SR, Single-frame SR and 2D-code specific SR -- Shuji Senda, Akihiko Iketani, Takashi Shibata (NEC)  SIP2010-60 ICD2010-74 IE2010-78 Link to ES Tech. Rep. Archives: ICD2010-74 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have developed three types of super-resolution methods, which commonly restore degraded images by image reconstruction. The image reconstruction is formulated as an energy minimization problem, where a restored image is obtained as an image that minimizes an energy function based on image degradation process. Specifically, it is MAP (maximum a posteriori) estimation since the energy function is a weighted sum of the error term and the regularization term. In this presentation, we present three types of super-resolution methods: single-frame SR, multi-frame SR and SR specifically designed for two-dimensional code. The multi-frame super-resolution restores detail structures by making use of the fact that sampling positions in each image is slightly different from others. It is important to speed up the process because precise registration of sub-pixel accuracy is necessary for each moving region. Although multi-frame super-resolution is very effective for a system such as video archives, where off-line processing is allowed, it is not suitable for processing high definition videos in real time. To meet this end, we have also developed a single-frame super-resolution method, and commercialized it as a custom LSI that can achieve real-time super-resolution of the high definition video. Also, in an attempt to significantly improve performance by focusing on a specific target, we have developed a super-resolution method that is specifically designed for QR-code, which is one of the most popular two-dimensional codes. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Super Resolution / Image Reconstruction / Image Restoration / Resolution / QR code / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 215, SIP2010-60, pp. 63-63, Oct. 2010. | |
| Paper # | SIP2010-60 | |
| Date of Issue | 2010-09-28 (SIP, ICD, IE) | |
| 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 | SIP2010-60 ICD2010-74 IE2010-78 Link to ES Tech. Rep. Archives: ICD2010-74 |
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| Conference Information | |
| Committee | IPSJ-SLDM SIP IE ICD |
| Conference Date | 2010-10-05 - 2010-10-06 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Makuhari Messe, International Conference Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Frontier of processor, DSP, and image processing supporting Digital Harmony |
| Paper Information | |
| Registration To | SIP |
| Conference Code | 2010-10-SLDM-SIP-IE-ICD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Image Restoration using Reconstruction-based Super Resolution |
| Sub Title (in English) | Multi-frame SR, Single-frame SR and 2D-code specific SR |
| Keyword(1) | Super Resolution |
| Keyword(2) | Image Reconstruction |
| Keyword(3) | Image Restoration |
| Keyword(4) | Resolution |
| Keyword(5) | QR code |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shuji Senda |
| 1st Author's Affiliation | NEC Corporation (NEC) |
| 2nd Author's Name | Akihiko Iketani |
| 2nd Author's Affiliation | NEC Corporation (NEC) |
| 3rd Author's Name | Takashi Shibata |
| 3rd Author's Affiliation | NEC Corporation (NEC) |
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| Speaker | Author-1 |
| Date Time | 2010-10-05 16:10:00 |
| Presentation Time | 45 minutes |
| Registration for | SIP |
| Paper # | SIP2010-60, ICD2010-74, IE2010-78 |
| Volume (vol) | vol.110 |
| Number (no) | no.215(SIP), no.216(ICD), no.217(IE) |
| Page | p.63 |
| #Pages | 1 |
| Date of Issue | 2010-09-28 (SIP, ICD, IE) |
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