CMOS Image Sensor Using Negative-Feedback Resetting to Obtain Variably Smoothed Images

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Author(s)

    • IKEBE Masayuki
    • Graduate School of Information Science and Technology, Hokkaido University
    • SAITO Keita
    • Graduate School of Information Science and Technology, Hokkaido University

Abstract

We designed a CMOS image sensor capable of capturing variably smoothed images. This sensor uses a negative-feedback technique to set photodiode (PD) capacitance in the pixel circuit to any intermediate voltage during charge accumulation and it provides a neighboring-pixel operation by using their average value when resetting the PD capacitance. Smoothing-filter coefficients are changed by adjusting timing of the pixel-readout and neighboring-pixels operations. The performance of the proposed sensor was evaluated by SPICE simulation and numerical analysis.

Journal

  • IEICE transactions on electronics

    IEICE transactions on electronics 89(11), 1662-1669, 2006-11-01

    The Institute of Electronics, Information and Communication Engineers

References:  9

Codes

  • NII Article ID (NAID)
    110007538705
  • NII NACSIS-CAT ID (NCID)
    AA10826283
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    09168524
  • Data Source
    CJP  NII-ELS 
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