Extended Dynamic Range From a Combined Linear-Logarithmic CMOS Image Sensor

@article{Storm2006ExtendedDR,
  title={Extended Dynamic Range From a Combined Linear-Logarithmic CMOS Image Sensor},
  author={G. Storm and R. Henderson and J. E. D. Hurwitz and David Renshaw and Keith Findlater and M. Purcell},
  journal={IEEE Journal of Solid-State Circuits},
  year={2006},
  volume={41},
  pages={2095-2106}
}
A CMOS image sensor that can operate in both linear and logarithmic mode is described. Two sets of data are acquired and combined in the readout path to render a high dynamic range image. This is accomplished in real-time without the use of frame memory. A dynamic range in excess of 120 dB was achieved at 26 frames/s (352times288-array). The system addresses the problems of high fixed pattern noise (FPN), slow response time, and low signal-to-noise ratio (SNR) in logarithmic mode. FPN has been… CONTINUE READING
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