An On-Sensor Bit-Serial Column-Parallel Processing Architecture for High-Speed Discrete Fourier Transform.

T. Eki, S. Kawahito,Y. Tadokoro

IEEE Transactions on Circuits and Systems II: Express Briefs（2006）

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摘要

This brief presents a discrete Fourier transform (DFT) processor based on a bit-serial column-parallel processing architecture suitable for integrating it on CMOS image sensors. Using a column-parallel A/D converter (ADC) array, column-line sensor outputs of the two-dimensional image array are digitized. The ADC outputs are sliced to one bit and are given to the bit-serial column-parallel DFT proc...

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关键词

Discrete Fourier transforms,Sensor arrays,Image sensors,Hardware,Parallel processing,Circuits,CMOS image sensors,Arithmetic,Pixel,Frequency estimation

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