Title:
画像システムにおける収差を生じる影響を最小化するための、システムおよび方法
Document Type and Number:
Japanese Patent JP2006523330
Kind Code:
A
Abstract:
A biometric optical recognition system includes optics, including a wavefront coding mask, for imaging a wavefront of object to be recognized to an intermediate image, and a detector for detecting the intermediate image. A modulation transfer function detected by the detector contains no zeros such that subsequent task based image processing recognizes the object. A biometric recognition system includes optics for imaging a wavefront of an object to be recognized to a first intermediate image, and a detector for detecting the first intermediate image. The optics include a phase changing element configured for modifying the wavefront such that a modulation transfer function characterizing detection of the first intermediate image contains no zeros such that subsequent task based image processing recognizes the object. In an optical imaging system that includes a solid state detector, a phase-modifying element reduces reflected power from electromagnetic energy incident upon the detector without introducing aberrations.
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Inventors:
Dowski, Edward Raymond, Junior
Kubera, Kenneth Scott
Baron, Alan Eugene
Kubera, Kenneth Scott
Baron, Alan Eugene
Application Number:
JP2006509486A
Publication Date:
October 12, 2006
Filing Date:
March 31, 2004
Export Citation:
Assignee:
CDM Optics, Incorporated
International Classes:
G02B27/46; G02B5/28; G02B27/00; G06K9/00
Domestic Patent References:
| JPH05323213A | 1993-12-07 | |||
| JPH06250108A | 1994-09-09 | |||
| JP2004303827A | 2004-10-28 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita