具有自动局部对比度调整和像素并行编码逻辑的CMOS指纹传感器

1999 Symposium on VLSI Circuits. Digest of Papers (IEEE Cat. No.99CH36326) Pub Date : 1999-06-17 DOI:10.1109/VLSIC.1999.797270

S. Jung, R. Thewes, T. Scheiter, K. Goser, W. Weber

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引用次数: 8

摘要

提出了一种利用无源电容网络实现图像二值化的自偏置自动局部对比度调整技术。像素并行的蜂窝逻辑嵌入到传感器阵列中，在不消耗额外面积的情况下提取指纹图像的特征特征。这种单芯片传感和编码系统适用于低功耗和低成本的应用。

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CMOS fingerprint sensor with automatic local contrast adjustment and pixel-parallel encoding logic

A CMOS fingerprint sensor is presented with a self-biasing automatic local contrast adjustment technique for image binarization realized with a passive capacitive network. Pixel-parallel cellular logic is embedded into the sensor array and extracts the characteristic features of the fingerprint image without any additional area consumption. This single-chip sensing and encoding system is suited for low-power and low-cost applications.

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来源期刊

1999 Symposium on VLSI Circuits. Digest of Papers (IEEE Cat. No.99CH36326)

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