Paper Abstract and Keywords |
Presentation |
2011-03-16 14:10
Sparse Coding for the Representation of Shape in Cortical Area V4
-- A Computational Study -- Tatsuroh Mashita, Ko Sakai (Univ. of Tsukuba) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We examined the essence of the receptive-filed properties of V4 neurons from the view point of information, specifically whether the coding of V4 neurons is in a form of sparse representation. The component analyses with the constraint of sparseness were applied to the image patches that simulated the responses of either V1 or V2 neurons for natural images. With the image patches that corresponded to the outputs of V2 neurons, we obtained a set of basis functions that were selective to contours with particular curvatures, which is similar to V4 receptive-fields. The result suggests the significance of sparse coding in the representation of V4 neurons, and the importance of afferent inputs from V2 in the formation of the V4 receptive-filed property. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Sparse Coding / V4 receptive field properties / Shape representation / / / / / |
Reference Info. |
ITE Tech. Rep., vol. 35, no. 16, HI2011-53, pp. 97-100, March 2011. |
Paper # |
HI2011-53 |
Date of Issue |
2011-03-08 (HI) |
ISSN |
Print edition: ISSN 1342-6893 |
Download PDF |
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Conference Information |
Committee |
HI |
Conference Date |
2011-03-15 - 2011-03-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo Univ. of Tech. |
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(See Japanese page) |
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Paper Information |
Registration To |
HI |
Conference Code |
2011-03-HI |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Sparse Coding for the Representation of Shape in Cortical Area V4 |
Sub Title (in English) |
A Computational Study |
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Sparse Coding |
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V4 receptive field properties |
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Shape representation |
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1st Author's Name |
Tatsuroh Mashita |
1st Author's Affiliation |
University of Tsukuba (Univ. of Tsukuba) |
2nd Author's Name |
Ko Sakai |
2nd Author's Affiliation |
University of Tsukuba (Univ. of Tsukuba) |
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Speaker |
Author-1 |
Date Time |
2011-03-16 14:10:00 |
Presentation Time |
20 minutes |
Registration for |
HI |
Paper # |
HI2011-53 |
Volume (vol) |
vol.35 |
Number (no) |
no.16 |
Page |
pp.97-100 |
#Pages |
4 |
Date of Issue |
2011-03-08 (HI) |