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A 1/3" VGA linear wide dynamic range CMOS image sensor implementing a predictive multiple sampling algorithm with overlapping integration intervals

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3 Author(s)
Acosta-Serafini, P.M. ; MIT, Cambridge, MA, USA ; Masaki, I. ; Sodini, C.G.

An image sensor implementing a novel algorithm that linearly increases the illumination dynamic range of solid-state pixels is presented. Optimal exposure is achieved with a predictive pixel saturation decision that allows for multiple integration intervals of different duration to run concurrently for different pixels while keeping the sensor frame rate constant. A proof-of-concept chip was fabricated in a 0.18 μm, 5M CMOS process. Minimal alterations to standard pixels are needed to provide the added functionality thus fill factor is not sacrificed. Measured data corroborates the algorithm functionality.

Published in:

Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003

Date of Conference:

21-24 Sept. 2003