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Title:
GABOR FILTER, IMAGE RECOGNITION APPARATUS AND METHOD, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP2010244381
Kind Code:
A
Abstract:

To more accurately calculate a localized feature quantity with less calculation amount with respect to any feature point of any image.

A value of a parameter σ of determining the shape of a Gabor filter is configured as a variable value expressed by a function of a frequency parameter ν. In the Gabor filter having a low frequency in the lower portion of the figure, the waves where the colors of pixels are changed from white to black do not exceed the area of the squares. In this manner, the Gabor filter satisfies the DC-Free characteristic and, even at the low frequency, the integration range may not necessarily be taken to be large.


Inventors:
OKUBO ATSUSHI
Application Number:
JP2009093623A
Publication Date:
October 28, 2010
Filing Date:
April 08, 2009
Export Citation:
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Assignee:
SONY CORP
International Classes:
G06T7/00; G06T1/00
Domestic Patent References:
JP2000155840A2000-06-06
JP2001016573A2001-01-19
Foreign References:
WO2007043712A12007-04-19
Other References:
JPN6012066360; 梅山伸二: 'ガボールフィルタバンクと独立成分分析を用いた劣化過程未知のぼけ画像からの原画像復元' 電子情報通信学会技術研究報告 PRMU2002-31〜43  パターン認識・メディア理解 第102巻 第156号, 20020621, 第31〜38頁, 社団法人電子情報通信学会
CSNG200400527005; 梅山伸二: 'ガボールフィルタバンクと独立成分分析を用いた劣化過程未知のぼけ画像からの原画像復元' 電子情報通信学会技術研究報告 PRMU2002-31〜43  パターン認識・メディア理解 第102巻 第156号, 20020621, 第31〜38頁, 社団法人電子情報通信学会
Attorney, Agent or Firm:
Yoshio Inamoto
Takashi Nishikawa



 
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