Hitachi Media Electronics Co., Ltd.

Tadayuki Abe

Hiromi Sugo

Shingo Yokoyama

Shoichi Sato

Masayuki Abe

Soichi Sakurai

Kenichi Mizuishi

Kyoichi Takahashi

A biometric authentication device includes an accommodation unit and a detection unit in which the accommodation unit accommodates a card-type recording medium providing alternative information alternative to feature information such that the card-type recording medium is faced to the detection unit, with a biologic object absent, and the detection unit detects the alternative information from the card-type recording medium, thereby collating the feature information extracted from an image of the biologic object with the feature information recorded in a memory in the case of placing the finger into the accommodation unit, and collating the alternative information from the card-type recording medium with the alternative information recorded in the memory in the case of placing the card-type recording medium into the accommodation unit.

Biometric authentication device and biometric authentication method

There is a need for providing a finger vein image inputting device that can miniaturize and thin a finger vein authentication apparatus and provide high authentication accuracy. The finger vein image inputting device according to the present invention includes a body, a band pass filter for transmitting only light of a specific wavelength, a light source for applying light to a finger placed over the band pass filter, and an imaging means for imaging transmitted light from the finger. A gradient index lens is provided between the band pass filter and the imaging means and causes refractive-index distribution around an optical axis. A polarizing filter is provided at least one of between the light source and the finger and between the finger and an imaging device.

Finger vein image inputting device and apparatus using the same

A biometric identification apparatus that can accurately and rapidly perform liveness detection with a simple structure. The apparatus includes a plurality of light sources, and, each having a wavelength different from one another, for emitting light to a fingeras an object to be identified, and receiversandfor detecting the light passing through the finger. The ratio of the light emitted from the light sources to the light detected with the receivers is obtained as transmittance. Determination in liveness detection is made by comparing the transmittance with a previously-set threshold of transmittance.

Biometric identification apparatus

Growing community of inventors

Ichinoseki, Japan

Tadayuki Abe