Paper Abstract and Keywords |
Presentation |
2011-03-09 10:15
A Comparison of Coding Behavior of ICA Filters and Gabor Functions Andre Cavalcante (Nagoya Univ.), Allan Kardec Barros (Univ. Federal do Maranhao), Yoshinori Takeuchi, Noboru Ohnishi (Nagoya Univ.) NC2010-187 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The independent component analysis of natural scenes spans filters similar to real-valued Gabor functions. However, ICA filters also present fluctuations and irregularities that diverge from Gabor functions. In this research, we investigate the role of these components on the efficient coding of natural scenes. Here, we assume a model where ICA filters are found as the convolution of a Gabor component with a function of unknown characteristics. Then, we analyze how the coding behavior of ICA filters differs from that of their Gabor components. Specifically, we examine characteristics of the coding such as representation sparseness and error. This initial research suggests that using only Gabor functions without fluctuations alters the image representation, which may have implications for general sensory stimuli coding. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
natural images / ICA / receptive fields / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 461, NC2010-187, pp. 355-360, March 2011. |
Paper # |
NC2010-187 |
Date of Issue |
2011-02-28 (NC) |
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) |
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NC2010-187 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2011-03-07 - 2011-03-09 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
NC |
Conference Code |
2011-03-NC-MBE |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Comparison of Coding Behavior of ICA Filters and Gabor Functions |
Sub Title (in English) |
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natural images |
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ICA |
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receptive fields |
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1st Author's Name |
Andre Cavalcante |
1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
2nd Author's Name |
Allan Kardec Barros |
2nd Author's Affiliation |
Universidade Federal do Maranhao (Univ. Federal do Maranhao) |
3rd Author's Name |
Yoshinori Takeuchi |
3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
4th Author's Name |
Noboru Ohnishi |
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Nagoya University (Nagoya Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-03-09 10:15:00 |
Presentation Time |
25 minutes |
Registration for |
NC |
Paper # |
NC2010-187 |
Volume (vol) |
vol.110 |
Number (no) |
no.461 |
Page |
pp.355-360 |
#Pages |
6 |
Date of Issue |
2011-02-28 (NC) |
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