320×240 oversampled digital single photon counting image sensor

  title={320×240 oversampled digital single photon counting image sensor},
  author={Neale A. W. Dutton and Luca Parmesan and Andrew J. Holmes and Lindsay Grant and Robert K. Henderson},
  journal={2014 Symposium on VLSI Circuits Digest of Technical Papers},
A 320×240 single photon avalanche diode (SPAD) based single photon counting image sensor is implemented in 0.13μm imaging CMOS with state of the art 8μm pixel pitch at 26.8% fill factor. The imager is demonstrated operating as a global shutter (GS) oversampled binary image sensor reading out at 5.14kFPS. Frames are accumulated in real time on FPGA to construct a 256 photon/8bit output image at 20FPS. 
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