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| Paper Abstract and Keywords | ||
| Presentation | 2009-11-20 10:50 3D-Weighted Filtering for the 1/f Noise Reduction on CMOS Image Sensor Kunsu Hwang, Toshihiro Nishimura (Waseda Univ.)  IE2009-116 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose a new method for 1/f noise reduction in complementary metal oxide semiconductor image sensors (CMOS Image Sensors: CIS) by applying characteristics of noise distribution on time domain. The algorithm using time domain or stacking images which are focused on same pixel position are proposed to make up for the weakness of general method on edge region. Nevertheless, in the case of using of self-pixel position, some problems such as blocking effect or acquisition of images are occurred. In this study, we propose the algorithm 3D weighted filtering using multi-images through noise distribution. By using weight value on the center pixel of each 2D mask, the optimized algorithm is implemented. The purpose of proposed method is to obtain the best PSNR with minimum number of frame and minimum weight value. We have used White Gaussian noise distribution because 1/f noise has that distribution. Through proposed algorithm, we have obtained the better PSNR than other methods as a masking method, Wiener filter and self pixel based method. The algorithm is expected that is effective for other random noise likes as photon shot noise with Poisson distribution. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 3D-Weighted Filter / 1/f noise / CMOS image sensor / Image Processing / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 292, IE2009-116, pp. 101-106, Nov. 2009. | |
| Paper # | IE2009-116 | |
| Date of Issue | 2009-11-12 (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 | IE2009-116 |
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| Conference Information | |
| Committee | ITE-ME ITE-AIT ITE-BCT IE |
| Conference Date | 2009-11-19 - 2009-11-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Sangyo Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | IE |
| Conference Code | 2009-11-ME-AIT-BCT-IE |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 3D-Weighted Filtering for the 1/f Noise Reduction on CMOS Image Sensor |
| Sub Title (in English) | |
| Keyword(1) | 3D-Weighted Filter |
| Keyword(2) | 1/f noise |
| Keyword(3) | CMOS image sensor |
| Keyword(4) | Image Processing |
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| 1st Author's Name | Kunsu Hwang |
| 1st Author's Affiliation | Waseda University (Waseda Univ.) |
| 2nd Author's Name | Toshihiro Nishimura |
| 2nd Author's Affiliation | Waseda University (Waseda Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-11-20 10:50:00 |
| Presentation Time | 20 minutes |
| Registration for | IE |
| Paper # | IE2009-116 |
| Volume (vol) | vol.109 |
| Number (no) | no.292 |
| Page | pp.101-106 |
| #Pages | 6 |
| Date of Issue | 2009-11-12 (IE) |
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