Title:
ディジタル信号処理装置、ディジタル信号処理方法及びプログラム並びに認証装置
Document Type and Number:
Japanese Patent JP4687948
Kind Code:
B2
Abstract:
A digital-signal processing apparatus in which the efficiency of processing data can be prevented uniformly. The apparatus includes: an extracting unit that extracts a part of real data input; a selecting unit that selects a data size from similar data sizes falling in a range, in accordance with the size of the extracted data, which is a reference value, and with data-decomposing conditions described in an algorithm that realizes fast Fourier transform; and an operation unit that decomposes the data extracted and having the selected size into data items, in accordance with the data-decomposing conditions, and that performs Fourier transform on each data item, thereby effecting convolution on the data item.
Inventors:
Hiroshi Abe
Application Number:
JP2004316674A
Publication Date:
May 25, 2011
Filing Date:
October 29, 2004
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06F17/14; A61B5/117; G06T1/00; G06T7/00; G06V40/14
Domestic Patent References:
| JP10247838A | ||||
| JP8030584A | ||||
| JP3142671A | ||||
| JP3100993U | ||||
| JP54034643A | ||||
| JP2002139404A | ||||
| JP2000003444A | ||||
| JP2004199435A | ||||
| JP10260958A | ||||
| JP2003169335A | ||||
| JP2005522804A | ||||
| JP2004326314A |
Foreign References:
| WO2003102809A1 |
Other References:
三浦 直人、長坂 晃朗、宮武 孝文,“線追跡の反復試行に基づく指静脈パターンの抽出と個人認証への応用”,電子情報通信学会論文誌,日本,社団法人電子情報通信学会,2003年 5月 1日,Vol.J86-D-II, No.5,p.678-687
Attorney, Agent or Firm:
Keiki Tanabe