Fpn Correction For A Linearlogarithmic Cmos Image Sensor With A Tunable Linear Range Using Twostep Charge Transfer

• doi: 10.1109/ISOCC.2014.7087579
• title: FPN correction for a linear-logarithmic CMOS image sensor with a tunable linear range using two-step charge transfer
• publisher: IEEE
• isbn: 978-1-4799-5127-7
• issn:
• rank: 2468
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper presents a fixed pattern noise (FPN) correction method for a linear-logarithmic CMOS image sensor (CIS) with a tunable linear response range. The proposed method is based on a two-step charge transfer operation to calibrate the offset FPN caused by the threshold voltage variation of the transfer gate under various linear ranges. The prototype image sensor consisting of a 320 × 240 pixel array with a 2.25 μm pixel pitch is fabricated with a 0.13 μm CIS process. It is found that the offset FPN is reduced by 90 % while the linear range is tuned by 20 % of the full output range.
• article_number: 7087579
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7087579
• html_url: https://ieeexplore.ieee.org/document/7087579/
• abstract_url: https://ieeexplore.ieee.org/document/7087579/
• publication_title: 2014 International SoC Design Conference (ISOCC)
• conference_location: Jeju
• conference_dates: 3-6 Nov. 2014
• publication_number: 7075853
• is_number: 7087542
• publication_year: 2014
• publication_date: 3-6 Nov. 2014
• start_page: 76
• end_page: 77
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 244
• insert_date: 20150420
• index_terms:
  • ieee_terms:
    • Lighting
    • Biomedical imaging
    • CMOS integrated circuits
    • System-on-chip
  • author_terms:
    • CMOS image sensor
    • fixed pattern noise
    • tunable linear-logarithmic response
    • wide dynamic range
  • dynamic_index_terms:
    • Linear Range
    • Image Sensor
    • Camera Sensor
    • Tuning Range
    • Fixed Pattern Noise
    • Linear Response
    • Linear Response Range
    • Transfer Operator
    • Dynamic Range
    • Partial Transfer
    • 2nd Level
    • 1st Level
    • Knee Point
• isbn_formats:
  • format: Electronic ISBN, value: 978-1-4799-5127-7, isbnType: New-2005
• authors:
  • Author Name: Byeungseok Yoo
    Affiliation: Department of Electrical Engineering, Daejeon, Republic of Korea
    Author URL: https://ieeexplore.ieee.org/author/37087662203
    ID: 37087662203
    Order: 1
    Author Affiliations:
    • Department of Electrical Engineering, Daejeon, Republic of Korea
  • Author Name: Inkyu Baek
    Affiliation: Department of Electrical Engineering, Daejeon, Republic of Korea
    Author URL: https://ieeexplore.ieee.org/author/37087663829
    ID: 37087663829
    Order: 2
    Author Affiliations:
    • Department of Electrical Engineering, Daejeon, Republic of Korea
  • Author Name: Kyounghoon Yang
    Affiliation: Department of Electrical Engineering, Daejeon, Republic of Korea
    Author URL: https://ieeexplore.ieee.org/author/37087259734
    ID: 37087259734
    Order: 3
    Author Affiliations:
    • Department of Electrical Engineering, Daejeon, Republic of Korea

Image Sensor

• sensor_type: CMOS
• resolution: 320 x 240
• dynamic_range: 103 dB
• pixel_size: 2.25 x 2.25 µm
• dark_current: not specified

Optical Data

• focal_length: not specified
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

• frame_rate: 36 frames/s
• sensitivity: Linear 1702 LSB/lx's, Logarithmic 93 LSB/dec
• noise: FPN values: Vknee4 = 3.7% (38 LSB), Vknee3 = 3.6% (37 LSB), Vknee2 = 3.5% (36 LSB), Vkneel = 3.2% (33 LSB) at different knee voltages.

Applications & Benefits

• cell_imaging: Suitable in medical or security imaging applications requiring the tunable linear range mode.
• benefits: Reduced offset fixed pattern noise (FPN) by 90% while tuning linear range by 20% of the full output range.

Supporting Organizations

• supported_by: image frontier center at Yonsei university and Samsung Electronics Co., Ltd.

Manuscript Details

• publication_date: 3-6 Nov. 2014

Relevancy Score

• score: 9
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • shutter_speed
  • power_consumption

Processed JSON Filename

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