Title:
PHOTOGRAPHING SYSTEM, PHOTOGRAPHING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PHOTOGRAPHING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/199168
Kind Code:
A1
Abstract:
The photographing system (10) according to this disclosure comprises: an acquisition unit (11) that acquires an iris image photographed by an iris photographing means for photographing an iris of a subject at a first angle of view, or an entire image photographed by an entirety photographing means for photographing the subject at a second angle of view larger than the angle of view of the iris photographing means; an estimation unit (12) that estimates a three-dimensional position of the subject included in the acquired entire image; a selection unit (13) that selects a coordinate conversion matrix that converts the three-dimensional position of the subject into two-dimensional coordinates in the first angle of view; a conversion unit (14) that converts, on the basis of the selected coordinate conversion matrix, coordinates of an eye of the subject included in the entire image corresponding to the estimated three-dimensional position to the two-dimensional coordinates in the first angle of view; and a setting unit (15) in which the iris photographing means sets a parameter for photographing the iris of the subject on the basis of the converted coordinates of the eye of the subject.
Inventors:
OGINO YUKA (JP)
Application Number:
PCT/JP2020/014596
Publication Date:
October 07, 2021
Filing Date:
March 30, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G06F21/32; G06T7/00; G06T1/00
Domestic Patent References:
| WO2009016846A1 | 2009-02-05 | |||
| WO2014208488A1 | 2014-12-31 |
Foreign References:
| JP2007504562A | 2007-03-01 | |||
| JP2002125142A | 2002-04-26 | |||
| JPH11327038A | 1999-11-26 | |||
| JP2004287621A | 2004-10-14 |
Other References:
WATANABE, TAKAHIRO ET AL.: "Personal Identification System Based on Automatic Iris Pattern Capturing", ITE TECHNICAL REPORT, vol. 25, no. 29, 21 March 2001 (2001-03-21), JP , pages 43 - 48, XP009537093, ISSN: 1342-6893
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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