Title:
CHARACTERISTIC EXTRACTION DEVICE, METHOD AND PROGRAM
Document Type and Number:
Japanese Patent JP2015118473
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable an extraction of a spatial characteristic high in discrimination force with respect to a noise characteristic and robust in an Affine mapping image.SOLUTION: A local characteristic area detection unit 10 is configured to, as to an input image, detect each of local areas and normalization coefficient, and a local characteristic calculation unit 40 is configured to calculate a local characteristic as to each of the local areas. A location vector calculation unit 50 is configured to calculate a location vector with respect to each of tuples of the local areas, and an Affine normalization unit 60 is configured to normalize the location vector of the tuple using the normalization coefficient. A characteristic output unit 70 is configured to, as to each of the tuples, synthesize the local characteristic calculated as to each of the local areas and the normalized location vector to be output as a spatial characteristic corresponding to the image.
Inventors:
WU XIAOMENG
KASHINO KUNIO
KASHINO KUNIO
Application Number:
JP2013260536A
Publication Date:
June 25, 2015
Filing Date:
December 17, 2013
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G06T7/00
Domestic Patent References:
| JP2012133516A | 2012-07-12 | |||
| JP2012083855A | 2012-04-26 | |||
| JP2007203040A | 2007-08-16 | |||
| JP2005050284A | 2005-02-24 | |||
| JP2004159354A | 2004-06-03 | |||
| JP2011519090A | 2011-06-30 |
Other References:
藤吉弘亘: "”Ｇｒａｄｉｅｎｔベースの特徴抽出 −ＳＩＦＴとＨＯＧ−”", 情報処理学会研究報告, vol. 第２００７巻, 第８７号, JPN6017003286, 3 September 2007 (2007-09-03), JP, pages 211 - 224, ISSN: 0003492883
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office