A Logpolar Image Sensor Fabricated In A Standard 12Spl Mum Asic Cmos Process

• doi: 10.1109/4.604087
• title: A log-polar image sensor fabricated in a standard 1.2-/spl mu/m ASIC CMOS process
• publisher: IEEE
• isbn:
• issn: 1558-173X
• rank: 1116
• access_type: LOCKED
• content_type: Journals
• abstract: A CMOS log-polar or foveated image sensor for use in mobile robotic and machine vision applications has been designed, fabricated, and tested. The sensor benefits from a high degree of integration, minimal power consumption, and ease of manufacture due to the use of a standard 1.2 /spl mu/m ASIC CMOS process. The sensor is composed of two distinct CMOS imager arrays which together solve the problem of obtaining good image resolution over a wide field of view. With resolution sensing is accomplished with a 40/spl times/40 array of individual pixels each measuring 9.6 /spl mu/m on a side. A wide field of view is provided by an array of 64/spl times/16 pixels arranged on a log-polar grid. The maximum measured dynamic range for the fabricated log-polar array is 46 dB, while the lowest observed fixed-pattern noise is 0.5% of saturation. Combined power consumption of both arrays is under 2 mW when operating from a single 5-V supply at a frame rate of 30 frames/s.
• article_number: 604087
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=604087
• html_url: https://ieeexplore.ieee.org/document/604087/
• abstract_url: https://ieeexplore.ieee.org/document/604087/
• publication_title: IEEE Journal of Solid-State Circuits
• conference_location:
• conference_dates:
• publication_number: 4
• is_number: 13259
• publication_year: 1997
• publication_date: Aug. 1997
• start_page: 1274
• end_page: 1277
• citing_paper_count: 17
• citing_patent_count: 1
• download_count: 175
• insert_date: 20020806
• index_terms:
  • ieee_terms:
    • Image sensors
    • Application specific integrated circuits
    • CMOS image sensors
    • Sensor arrays
    • Energy consumption
    • Mobile robots
    • Robot sensing systems
    • Robot vision systems
    • Machine vision
    • Testing
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Dynamic Range
    • Power Consumption
    • Wide Field Of View
    • Pixel Array
    • Autonomic System
    • Autonomous Robots
    • Photodiode
    • Receptive Field
    • Output Image
    • Sensor Matrix
    • Sensor Matrices
• authors:
  • Author Name: R. Wodnicki
    Affiliation: Department of Electrical Engineering, McGill University, Montreal, QUE, Canada
    Author URL: https://ieeexplore.ieee.org/author/37297014300
    ID: 37297014300
    Order: 1
    Author Affiliations:
    • Department of Electrical Engineering, McGill University, Montreal, QUE, Canada
    • GE Corporate Research and Development Center, Schenectady, NY, USA
  • Author Name: G.W. Roberts
    Affiliation: Department of Electrical Engineering, McGill University, Montreal, QUE, Canada
    Author URL: https://ieeexplore.ieee.org/author/37269787700
    ID: 37269787700
    Order: 2
    Author Affiliations:
    • Department of Electrical Engineering, McGill University, Montreal, QUE, Canada
  • Author Name: M.D. Levine
    Affiliation: Department of Electrical Engineering, McGill University, Montreal, QUE, Canada
    Author URL: https://ieeexplore.ieee.org/author/37288132700
    ID: 37288132700
    Order: 3
    Author Affiliations:
    • Department of Electrical Engineering, McGill University, Montreal, QUE, Canada

Image Sensor

• sensor_type: CMOS
• resolution: 40x52 for fovea array, 64 rays and 16 rings for periphery array
• dynamic_range: 46 dB
• pixel_size: 9.6 µm
• dark_current: N/A

Optical Data

• focal_length: N/A
• aperture: N/A
• field_of_view: N/A
• distortion: N/A

Performance Metrics

• frame_rate: 30 fps
• signal_to_noise_ratio: N/A
• sensitivity: N/A
• shutter_speed: N/A
• power_consumption: <2 mW
• noise: 0.5% of saturation

Applications & Benefits

• cell_imaging: N/A
• benefits: High degree of integration, minimal power consumption, and ease of manufacture.

Supporting Organizations

• supported_by: Natural Sciences and Engineering Research Council of Canada, FCAR grant from the province of Québec, Canadian Microelectronics Corporation, McGill Photonics Systems Group.

Manuscript Details

• publication_date: Aug. 1997

Relevancy Score

• score: 9
• missing_fields:
  • fill factor
  • quantum efficiency
  • readout speed
  • temporal noise
  • analog-to-digital conversion techniques
  • microlenses
  • on-chip colour filters
  • global shutter
  • rolling shutter
  • backside illumination

Processed JSON Filename

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