A Widedynamicrange Cmos Image Sensor With Gating For Night Vision Systems

• doi: 10.1109/TCSII.2010.2104014
• title: A Wide-Dynamic-Range CMOS Image Sensor With Gating for Night Vision Systems
• publisher: IEEE
• isbn:
• issn: 1558-3791
• rank: 992
• access_type: LOCKED
• content_type: Journals
• abstract: This brief presents a novel concept for a global multishuttering CMOS image sensor with linear wide-dynamic-range (WDR) implementation for night vision systems. The proposed imager is synchronized with an external active pulsed light source and is suitable for surveillance, automotive, and military applications. The proposed imager provides a linear WDR by applying adaptive exposure time to each pixel according to the local intensity level of illumination. Each pixel has a size of 13.75 μm × 13.75 μm, consists of only eight transistors, dissipates 100 nW, and provides dynamic range expansion of up to 98 dB. System architecture and algorithm are described. Pixel structure and design are analyzed according to charge injection considerations and signal-to-noise ratio requirements. Sensor principle of operation is presented, and simulation and experimental results for the proof of the concept are shown.
• article_number: 5719162
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5719162
• html_url: https://ieeexplore.ieee.org/document/5719162/
• abstract_url: https://ieeexplore.ieee.org/document/5719162/
• publication_title: IEEE Transactions on Circuits and Systems II: Express Briefs
• conference_location:
• conference_dates:
• publication_number: 8920
• is_number: 5719224
• publication_year: 2011
• publication_date: Feb. 2011
• start_page: 85
• end_page: 89
• citing_paper_count: 6
• citing_patent_count: 0
• download_count: 1369
• insert_date: 20110222
• index_terms:
  • ieee_terms:
    • Switches
    • Pixel
    • Capacitance
    • Signal to noise ratio
    • Logic gates
    • Charge transfer
  • author_terms:
    • CMOS image sensors
    • gated vision
    • global shutter
    • night vision
    • wide dynamic range
  • dynamic_index_terms:
    • Visual System
    • Image Sensor
    • Camera Sensor
    • Night Vision
    • Night Vision Systems
    • Illumination
    • Lighting
    • Light Pulses
    • Military Applications
    • Charge Injection
    • External Light
    • Pulsed Source
    • External Light Source
    • Light Intensity
    • Background Noise
    • Ambient Noise
    • Laser Pulse
    • Operation Mode
    • High Light
    • High Light Intensity
    • Threshold Voltage
    • Light Reflection
    • Multiple Exposures
    • CMOS Technology
    • End Of Frame
    • Digital Memory
    • PIN Photodiode
    • Decision Phase
    • Output Pixel
    • Integration Period
    • Dominant Noise Source
    • Pixel Array
    • Rolling Shutter
• authors:
  • Author Name: Arthur Spivak
    Affiliation: The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
    Author URL: https://ieeexplore.ieee.org/author/38270880100
    ID: 38270880100
    Order: 1
    Author Affiliations:
    • The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
  • Author Name: Alexander Belenky
    Affiliation: The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
    Author URL: https://ieeexplore.ieee.org/author/38276353100
    ID: 38276353100
    Order: 2
    Author Affiliations:
    • The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
  • Author Name: Alexander Fish
    Affiliation: The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
    Author URL: https://ieeexplore.ieee.org/author/37268457100
    ID: 37268457100
    Order: 3
    Author Affiliations:
    • The VLSI Systems Center, Ben-Gurion University of the Negev, Beersheba, Israel
  • Author Name: Orly Yadid-Pecht
    Affiliation: Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, Canada
    Author URL: https://ieeexplore.ieee.org/author/38298354100
    ID: 38298354100
    Order: 4
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Calgary, Calgary, AB, Canada

Image Sensor

• sensor_type: CMOS
• resolution: Not specified, but designed for night vision systems with WDR capabilities.
• dynamic_range: Up to 98 dB
• pixel_size: 13.75 μm x 13.75 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: High frame rate as required for night vision systems; exact value not specified.
• signal_to_noise_ratio: SNR expected to be up to 50 dB.
• sensitivity: Not specified, but high responsivity for low light conditions is implied.
• shutter_speed: Integrated with multiple short electronic shutters.
• power_consumption: 100 nW per pixel.
• noise: kT/C noise primarily during reset operations.

Applications & Benefits

• cell_imaging: Designed for low-light high-responsivity applications such as night vision, surveillance, and military systems.
• benefits: Provides a linear wide-dynamic-range (WDR), allowing for better image capture in varying lighting conditions.

Supporting Organizations

• supported_by: Ben-Gurion University and University of Calgary.

Manuscript Details

• publication_date: Feb. 2011

Relevancy Score

• score: 10
• missing_fields:
  • fill factor
  • quantum efficiency
  • readout speed
  • noise sources
  • analog-to-digital conversion techniques
  • microlenses
  • on-chip colour filters
  • global or rolling shutters
  • backside illumination

Processed JSON Filename

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