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- W1969793294 abstract "As one kind of the latest forms of biometrics, the human hand vein recognition utilizes a state-of-the-art recognitionalgorithm based on unique veins and capillaries found on human dorsal hand, which possesses the advantages such aswell anti-falsification and high noise immunity. For the hand vein recognition, the most important premise is acquiringthe high quality hand vein image. According to the special effect of human hand vein on the near infrared (NIR), when ahand is scanned by an image sensor, the vein pattern appears darker than its surroundings. Depending on thischaracteristic, the NIR light source was utilized to illuminate the image acquisition system for hand vein. And theoptimal parameters of light source were chosen and the light source with high uniformity illuminance was manufacturedto acquire the more clear hand vein image. Simultaneously, for the purpose of system miniaturization and designflexibility, the embedded image acquisition system for hand vein was designed based on the technology of system onprogrammable chip (SOPC). FPGA and CMOS image sensor were taken as the core components in the system, and thehardware of acquisition module is realized by configuring NiosII soft-core CPU and some corresponding interfacemodules on a FPGA. The software was developed by using the NiosII IDE to realize the initialization control toCMOS image sensor and collection, storage and transmission for the image data gathered from CMOS. Then thecollected hand vein image was simply preprocessed, which further improved the image quality. Through experiments,the results indicated that this system could obtain the hand vein image with high performance, and it supplied theembedded development platform for hand vein recognition simultaneously. It was significant to develop the hand veinrecognition system with small size and high speed." @default.
- W1969793294 created "2016-06-24" @default.
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- W1969793294 date "2009-07-03" @default.
- W1969793294 modified "2023-09-24" @default.
- W1969793294 title "Development of an image acquisition system for hand vein based on an embedded system" @default.
- W1969793294 doi "https://doi.org/10.1117/12.835337" @default.
- W1969793294 hasPublicationYear "2009" @default.
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