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Image input device and personal authentication device

An image input device and image technology, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of limiting the imaging surface and increasing the cost of equipment

Inactive Publication Date: 2009-04-22
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if an attempt is made to capture a wide area by using equal-magnification imaging, an imaging device with a wide imaging surface is required, and the cost of the device is increased
Limits the imaging surface of commonly used and inexpensive CMOS (Complementary Metal Oxide Semiconductor) imaging devices or CCD (Charge Coupled Device) imaging devices

Method used

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  • Image input device and personal authentication device
  • Image input device and personal authentication device
  • Image input device and personal authentication device

Examples

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Embodiment Construction

[0016] Next, embodiments of the present invention will be described with reference to the drawings. The image input device according to the present invention is preferably used for inputting images of in-vivo objects. In the embodiments of the present invention, an image input device is described as a device that takes an image of a blood vessel inside a finger as a subject and uses the input image for personal authentication.

[0017] FIG. 1 is a diagram illustrating the structure of an image input device according to an embodiment of the present invention. In FIG. 1 , a human finger 1 is schematically depicted in a view in the direction of the fingertip, and a blood vessel 2 within the finger 1 is schematically depicted. Vessel 2 is the object.

[0018] The lens array 3 forms an image of a subject, and two-dimensionally arranges a plurality of aspheric single lenses in a plane substantially perpendicular to the optical axis. Spherical lenses on one or both sides or aspher...

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PUM

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Abstract

An image input device is disclosed, including: a lens array in which a plurality of lenses are arrayed; a shielding member configured to prevent a crosstalk on an image surface of light rays passing each of lenses of the lens array; a flat board member configured to regulate a position of a living body in a lens optical axis direction of the lens array when contacting the living body; an image pickup part configured to include an image surface and pick up a compound eye image, which is a set of reduced images of an object inside the living body which position is regulated by the flat board member, the reduced images approximately formed on the image surface by the plurality of lenses of the lens array; and a process part configured to re-compose a single image from the compound eye image picked up by the image pickup part. The image input device inputs the single image re-composed by the process part as an object image.

Description

technical field [0001] The present invention generally relates to a personal authentication device that performs personal authentication by using information on a subject within a living body, and an image input device that can be implemented as a subject image input device of the personal authentication device. Background technique [0002] Recently, personal authentication devices have been mounted on mobile phones, notebook personal computers, and other various information processing devices. In the process of miniaturizing the information processing device, it is necessary to further minimize the personal authentication device to be mounted to the information processing device. [0003] For example, Japanese Laid-Open Patent Application Publications No. 2004-272821 and No. 2005-092375 disclose personal authentication devices using vein patterns of fingers. The personal authentication device uses an optical system of a single eye, and limits an object distance and an ima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 森田展弘山中佑治
Owner RICOH KK