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A 500-dpi cellular-logic processing array for fingerprint-image enhancement and verification

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9 Author(s)
Fujii, K. ; NTT Lifestyle & Environ. Technol. Labs., Kanagawa, Japan ; Nakanishi, Mamoru ; Shigematsu, S. ; Morimura, H.
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A 500-dpi cellular-logic processing array performs all fingerprint identification steps on one chip, from image acquisition, enhancement, to verification. Morphological functions for executing these steps are implemented in a 30×50-μm2 processing unit. A single-cycle datapath and a shared logic structure enable compact implementation of the processing unit. A fabricated 224×256-pixel fingerprint identification LSI demonstrates fully-functional image processing and practical accuracy of identification.

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Custom Integrated Circuits Conference, 2002. Proceedings of the IEEE 2002

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