Histogramequalizationbased Adaptive Image Sensor For Realtime Vision

• doi: 10.1109/4.597293
• title: Histogram-equalization-based adaptive image sensor for real-time vision
• publisher: IEEE
• isbn:
• issn: 1558-173X
• rank: 2661
• access_type: LOCKED
• content_type: Journals
• abstract: Image sensing and coding are essential to vision machines. This paper presents an adaptive image sensor by using in situ histogram equalization. With this histogram-equalization-based adaptation, this image sensor can adapt automatically to different lighting conditions without frame delay and provides a constant image signal excursion range. A CMOS prototype chip of 64/spl times/64-pixel is presented where each pixel contains ten transistors and occupies 50/spl times/50 /spl mu/m/sup 2/ in a classic 1-/spl mu/m double-metal single-poly process. The experimental results confirm an adaptation over illumination variation of 1:5000.
• article_number: 597293
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=597293
• html_url: https://ieeexplore.ieee.org/document/597293/
• abstract_url: https://ieeexplore.ieee.org/document/597293/
• publication_title: IEEE Journal of Solid-State Circuits
• conference_location:
• conference_dates:
• publication_number: 4
• is_number: 13087
• publication_year: 1997
• publication_date: July 1997
• start_page: 1027
• end_page: 1036
• citing_paper_count: 23
• citing_patent_count: 4
• download_count: 269
• insert_date: 20020806
• index_terms:
  • ieee_terms:
    • Image sensors
    • CMOS image sensors
    • Noise level
    • Dynamic range
    • Charge coupled devices
    • Image converters
    • Charge-coupled image sensors
    • CMOS process
    • Lighting
    • Photodiodes
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Image Signal
    • Illumination Variations
    • Histogram Equalization
    • Exposure Time
    • Grayscale
    • Gray Level
    • Greyscale
    • Dynamic Range
    • Ordered Structure
    • Threshold Voltage
    • Illumination Conditions
    • Output Image
    • Sensor Chip
    • Dark Current
    • P-n Junction
    • Image Histogram
    • Grayscale Histogram
    • Coding Efficiency
    • Bright Pixels
    • Illumination Levels
    • Slew Rate
    • Cumulative Histogram
    • Transimpedance Amplifier
    • Readout Circuit
    • Sensor Prototype
    • Frame Rate
    • Offset Voltage
    • Vision Applications
    • Automatic Gain Control
    • Mode Of Integration
    • Good Isolation
• authors:
  • Author Name: Yang Ni
    Affiliation: Group Electronique et CAO, Deéartement Electronique et Physique, Institut National de Télécommunications, Evry, France
    Author URL: https://ieeexplore.ieee.org/author/37087354104
    ID: 37087354104
    Order: 1
    Author Affiliations:
    • Group Electronique et CAO, Deéartement Electronique et Physique, Institut National de Télécommunications, Evry, France
  • Author Name: F. Devos
    Affiliation: Institut d Electronique Fondamentale, Université Paris Sud, Orsay, France
    Author URL: https://ieeexplore.ieee.org/author/37353735800
    ID: 37353735800
    Order: 2
    Author Affiliations:
    • Institut d Electronique Fondamentale, Université Paris Sud, Orsay, France
  • Author Name: M. Boujrad
    Affiliation: Institut d Electronique Fondamentale, Université Paris Sud, Orsay, France
    Author URL: https://ieeexplore.ieee.org/author/37087957690
    ID: 37087957690
    Order: 3
    Author Affiliations:
    • Institut d Electronique Fondamentale, Université Paris Sud, Orsay, France
  • Author Name: Jian Hong Guan
    Affiliation: Group Electronique et CAO, Département Electronique et Physique, Institut National de Télécommunications, Evry, France
    Author URL: https://ieeexplore.ieee.org/author/37087957689
    ID: 37087957689
    Order: 4
    Author Affiliations:
    • Group Electronique et CAO, Département Electronique et Physique, Institut National de Télécommunications, Evry, France

Image Sensor

• sensor_type: CMOS
• resolution: 64x64 pixels
• dynamic_range: 1:100000
• pixel_size: 50 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: variable and limited by the darkest pixel
• power_consumption: about 8 mA for 64x64 pixels

Applications & Benefits

• cell_imaging: The sensor provides good quality images under varying illumination conditions, showcasing potential for embedded vision applications.
• benefits: Eliminates opto-mechanical exposure control, thus contributing to miniaturization.

Supporting Organizations

• supported_by: Institut National des Télécommunications, Université Paris Sud

Manuscript Details

• publication_date: July 1997

Relevancy Score

• score: 10
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • noise

Processed JSON Filename

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