Presentation 2001/3/15
Improvement of pattern searching speed based on information compression by use of log-polar mapping and response vectors.
Nobuyuki Takahashi, Yasuji Sawada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We proposed Log-Polar Steerable Filter (LPSF) algorithm, using a log-polar mapping of the input image, which is a model similar to the projection of retinal space onto the visual cortex. In LPSF algorithm, the fixation point moves several times on an input image, and searches target objects identical to the template object by filter responses of the mapped image (foveated image) before it arrives at the target object. It was shown that this algorithm improved pattern search in terms of the computation time.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) log-polar mapping / response vector / pattern search / steerable filter / iconic representation
Paper # PRMU2000-219
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Conference Information
Committee PRMU
Conference Date 2001/3/15(1days)
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Paper Information
Registration To Pattern Recognition and Media Understanding (PRMU)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improvement of pattern searching speed based on information compression by use of log-polar mapping and response vectors.
Sub Title (in English)
Keyword(1) log-polar mapping
Keyword(2) response vector
Keyword(3) pattern search
Keyword(4) steerable filter
Keyword(5) iconic representation
1st Author's Name Nobuyuki Takahashi
1st Author's Affiliation Graduate School of Information Sciences, Tohoku University()
2nd Author's Name Yasuji Sawada
2nd Author's Affiliation Research Institute of Electrical Communciation, Tohoku University
Date 2001/3/15
Paper # PRMU2000-219
Volume (vol) vol.100
Number (no) 701
Page pp.pp.-
#Pages 8
Date of Issue