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Title:
IMAGE INPUT DEVICE AND AUTHENTICATION DEVICE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/020149
Kind Code:
A1
Abstract:
An image input device includes: an image input section where an image is input; an image evaluation section for evaluating image quality or an object by using a predetermined threshold value; a cause identification section for identifying the image deterioration cause corresponding to the image according to the image evaluation result in the image evaluation section; an output section for performing a predetermined inquiry to a user; a cause input section for receiving the response to the inquiry; and a cause comparison section for judging whether the image deterioration cause is matched with the image deterioration cause corresponding to the response. When the cause comparison section judges that the image deterioration cause is not matched with the image deterioration cause corresponding to the response, the image evaluation section modifies the predetermined threshold value used for image evaluation so that the image deterioration cause is matched with the image deterioration cause corresponding to the response.

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Inventors:
FUJIMATSU TAKESHI
Application Number:
PCT/JP2004/009684
Publication Date:
March 03, 2005
Filing Date:
July 01, 2004
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
FUJIMATSU TAKESHI
International Classes:
G06K9/00; A61B5/117; G06T1/00; G06T7/00; (IPC1-7): G06T7/00
Foreign References:
JP2000060825A2000-02-29
JPS6382540A1988-04-13
JPS6482185A1989-03-28
JP2001236499A2001-08-31
JP2000132686A2000-05-12
JPH10137223A1998-05-26
JPH105195A1998-01-13
JPH09106470A1997-04-22
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. Ltd. (1006, Oaza Kadom, Kadoma-shi Osaka 01, JP)
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