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A Study on High-Sensitivity Image Sensors Using Signal Processing Techniques for Noise Reduction

Research Project

Project/Area Number 13450140
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 電子デバイス・機器工学
Research InstitutionShizuoka University

Principal Investigator

KAWAHITO Shoji  Shizuoka University, Research Institute of Electronics, Professor, 電子工学研究所, 教授 (40204763)

Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2002: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2001: ¥5,400,000 (Direct Cost: ¥5,400,000)
Keywordsoversampling / highly sensitive imaging / CMOS image sensor / noise analysis / noise cancel / イメージセンサ / 高感度 / ノイズ低減処理 / 適応ゲイン増幅 / 最小2乗推定
Research Abstract

In this, study, new noise reduction techniques based on oversampled signal processing for high-sensitivity image sensors have been investigated. The proposed technique does not require any photo charge multiplication, which is a major technique for highly sensitive imaging. One of the methods uses a multiple sampling of the image array output in non-destructive readout modes. This technique predicts the signal component based on the correlation in the intermediate signal levels in the non-destructive mode of pixel outputs and greatly reduces the output random noise. Another method uses a gain-adaptive amplifier array integrated at the column of the image sensors. An experimental image sensor chip based on 0.25um technology has been developed and the lowest noise level of 260uV in CMOS image sensors is achieved. In order to investigate the low-noise sensor interface, establishment of a noise analysis method for CMOS image sensor interface circuits is indispensable. We have established a noise analysis method for high-gain switched capacitor amplifiers suitable for integrating them at the column of the image sensors. The noise analysis model includes both the thermal and 1/f noises. The analysis shows that a double stage noise-canceling amplifier has extremely low noise level if a noise component sampled at the inside node of the amplifier is cancelled.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] S.Kawahito, S.Ito: "A Photon count imaging using a extremely small capacitor and a high- precision low-noise quantizer"Proc.of SPIE-IS&T. Vol.5017. 68-75 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, N.Kawai: "Noise calculation model for high-gain column amplifiers of CMOS image sensors"Proc.of SPIE-IS&T. Vol.5017. 48-58 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, M.Sakakibara, D.Handoko, N.Nakamura, et al.: "A Column-Based Pixel-Gain-Adaptive CMOS Image Sensor for Low-Light-Level Imaging"Dig.Tech.Papers, IEEE Int.Solid-State Circuits Conf.. Vol.46. 178-179 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sakakibara, S.Kawahito, D.Handoko, N.Nakamura, et al.: "A CMOS Image Sensor with Gain-Adaptive Column Amplifiers"IEEE Workshop on CCDs and Advanced Image Sensors. 21-25 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 河合 信宏, 川人 祥二: "CMOSイメージセンサにおける高ゲインカラムアンプのノイズ解析"映像情報メディア学会・情報センシング研究会技術報告. Vol.27,No.59. 21-24 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Kawai, S.Kawahito: "Noise Analysis of High-Gain, Low-Noise Column Readout Circuits for CMOS Image Sensors"IEEE Trans.Electron Devices. Vol.51,No.2. 185-194 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, S.Ito: "A Photon count imaging using a extremely small capacitor and a high-precision low-noise quantizer"Proc. of SPIE-IS&T. Vol.5017. 68-75 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, N.Kawai: "Noise calculation model for high-gain column amplifiers of CMOS image sensors"Proc. of SPIE-IS&T. Vol.5017. 48-58 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, M.Sakakibara, D.Handoko, N.Nakamura, et al.: "A Column-Based Pixel-Gain-Adaptive CMOS Image Sensor for Low-Light-Level Imaging"Dig.Tech.Papers, IEEE Int. Solid-State Circuits Conf.. Vol.46. 178-179 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sakakibara, S.Kawahito, D.Handoko, N.Nakamura, et al.: "A CMOS Image Sensor with Gain-Adaptive Column Amplifiers"IEEE Workshop on CCDs and Advanced Image Sensors. 21-25 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Kawai, S.Kawahito: "Noise Analysis of High-Gain Column Readout Circuits for CMOS Image Sensors"Technical report, Inst. of Image Information and Television Engineers(in Japanese). Vol.27, No.59. 21-24 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Kawai, S.Kawahito: "Noise Analysis of High-Gain, Low-Noise Column Readout Circuits for CMOS Image Sensors"IEEE Trans. Electron Devices. Vol.51, No.2. 185-194 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Kawahito, S.Ito: "A Photon count imaging using a extremely small capacitor and a high-precision low-noise quantizer"Proc.of SPIE-IS&T. Vol.5017. 68-75 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Kawahito, N.Kawai: "Noise calculation model for high-gain column amplifiers of CMOS image sensors"Proc.of SPIE-IS&T. Vol.5017. 48-58 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Kawahito, M.Sakakibara, D.Handoko, N.Nakamura, et al.: "A Column-Based Pixel-Gain-Adaptive CMOS Image Sensor for Low-Light-Level Imaging"Dig.Tech.Papers, IEEE Int.Solid-State Circuits Conf.. Vol.46. 178-179 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Sakakibara, S.Kawahito, D.Handoko, N.Nakamura, et al.: "A CMOS Image Sensor with Gain-Adaptive Column Amplifiers"IEEE Workshop on CCDs and Advanced Image Sensors. 21-25 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 河合信宏, 川人祥二: "CMOSイメージセンサにおける高ゲインカラムアンプのノイズ解析"映像情報メディア学会・情報センシング研究会技術報告. Vol.27,No.59. 21-24 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Kawai, S.Kawahito: "Noise Analysis of High-Gain, Low-Noise Column Readout Circuits for CMOS Image Sensors"IEEE Trans.Electron Devices. Vol.51, No.2. 185-194 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Kawai, S.Kawahito: "A low-noise oversampling signal detection technique for CMOS image sensor"Proc.Instrumentation and Measurement Technology Conference. vol.1. 265-268 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kawahito, N.Kawai: "A low-noise signal detection technique in CMOS image sensors using frame-oversampling and non-destructive high-speed readout"Proc.SPIE. 4669. 98-107 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kawahito, S.Ito: "Photon count imaging using an extremely small capacitor and a high-precision low-noise quantizer"Proc.SPIE. (7月発行). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kawahito: "Recent Developments in Sensor Interfaces"Book of Abstracts, EUROSENSORS XVI. 1(invited). 5-6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 川人祥二, 河合信宏: "最小2乗推定を用いたCMOSイメージセンサの読み出し雑音低減"映像情報メデイア学会情報センシング研究会. IPU2002-36. 11-14 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kawahito, M.Sakakibara, D.Handoko, N.Nakamura, H.Satoh, M.Higashi, K.Mabuchi, H.Sumi: "A Column-Based Pixel-Gain-Adaptive CMOS Image Sensor for Low-Light-Level Imaging"Dig.Tech.Papers.IEEE Int.Solid-State Circuits Conf.. 224-225 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kawahito, N.Kawai, Y.Tadokoro: "A high-sensitivity oversampling digital signal detection technique for CMOS image sensors using non-destructive intermediate high-speed readout mode"Proc. 2001 IEEE Workshop on Charge-Coupled Devices and Advanced Image Sensors. 24-27 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Kawahito, N.Kawai: "A low-noise signal detection technique in CMOS image sensors using frame-oversampling and non-destructive high-speed readout"Summary Digest, SPIE Annual Symposium on Electronic Imaging. 196 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] N.Kawai, S.Kawahito: "A low-noise oversampling signal detection technique for CMOS image sensor"Proc. Instrumentation and Measurement Technology Conference. (6月発行). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 川人祥二, 河合信宏, 田所嘉昭: "オーバーサンプリング信号処理に基づく高感度ディジタルCMOSイメージセンサ"映像情報メディア学会技術報告. IPU2001-21. 25-30 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 河合信宏, 川人祥二, 田所嘉昭: "フレームオーバーサンプリングによる高感度イメージセンサの検討"映像情報メディア学会2001年度年次大会予稿集. 25-3. 368-369 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 川人祥二, 河合信宏, 田所嘉昭: "フレームオーバーサンプリングと非破壊中間読み出しによる高感度イメージセンサの検討"映像情報メディア学会技術報告. IPU2001-61. 67-72 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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