Masashi Kurita

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To prevent fraud by use of replicas of human fingers for identity verification, we propose to check variations in color and in a series of previously acquired fingerprint images. Movement of a finger on a human hand induces blood movement, and light scattered inside the finger carries this life-related information. In experiments, we found characteristic(More)
Unattended fingerprint identification systems need to reject input attempts by a replica. Previously, we proposed detecting the color changes of a finger during an input action as a signature of liveliness. To improve its reliability, a dual-LED imaging system is investigated. It employs two LEDs with peak emissions at 530 and 630 nm to cover the spectral(More)
An 82-year-old male was admitted to our hospital because of anemia with Hb 6.9/dl. The serum monoclonal IgG of the kappa type was detected. Bone marrow aspiration showed the presence of 38.9% atypical plasma cells with crystalline inclusions. These crystalline inclusions were stained with acid phosphatase, and remained unstained with MPO, PAS and Congo-Red(More)
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