VEIN PATTERN MANAGEMENT SYSTEM, VEIN PATTERN REGISTRATION DEVICE, VEIN PATTERN AUTHENTICATION DEVICE, VEIN PATTERN REGISTRATION METHOD, VEIN PATTERN AUTHENTICATION METHOD, PROGRAM, AND VEIN DATA STRUCTURE

摘要

There are provided an imaging unit for capturing an image of a portion of a body surface of a living body with near-infrared light and generating near-infrared light imaging data, a vein pattern extraction unit for extracting a vein pattern from the near-infrared light imaging data by applying a differential filter, which outputs a large value for a pixel having a large difference between the pixel and its surrounding pixel, to a plurality of pixels constituting the near-infrared light imaging data, and a pseudo-vein pattern determination unit for determining presence of a pseudo-vein pattern intentionally formed on a part of the captured body surface based on the extracted vein pattern.