Low power programmable current mode computational imaging sensor

Raphael Njuguna, Viktor Gruev

Research output: Contribution to journalArticlepeer-review


A linear current mode computational image sensor is presented in this paper. The sensor monolithically combines current mode imaging elements with current mode digitally programmable analog computational circuitry at the focal plane. The pixel is based on a switchless paradigm and allows for reduced spatial and temporal noise imaging. The imaging array is composed of 128-by-109 pixels. The image sensor provides a noise-corrected image in conjunction with a convolved image in parallel at 50 fps and 50 mW. The maximum measured SNR is 44 dB, maximum FPN of saturated value (after DDS) is 0.22%, and DR is 55 dB.

Original languageEnglish (US)
Article number5783498
Pages (from-to)727-736
Number of pages10
JournalIEEE Sensors Journal
Issue number4
StatePublished - 2012
Externally publishedYes


  • Analog computation
  • CMOS image sensors
  • current mode
  • linear response
  • low power sensors

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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