A Cmos Optical Sensor System Performing Image Sampling On A Hexagonal Grid

• doi:
• title: A CMOS Optical Sensor System Performing Image Sampling on a Hexagonal Grid
• publisher: IEEE
• isbn: 2-86332-197-8
• issn:
• rank: 572
• access_type: LOCKED
• content_type: Conferences
• abstract: An integrated CMOS image acquisition system suitable for retinal information processing in bionic vision systems or product inspection has been developed and tested. It supports the readout of arbitrarily user-defined subregions. The test chip incorporates 32×32 random addressable active sensor cells arranged on a hexagonal grid and on-chip control and readout electronics. It has been designed and fabricated in a standard 1.5 μm n-well CMOS process. The size of a single sensor cell is 38.8 μm × 33.6 μm and the total chip area is 7 mm2. The sensor cells show a logarithmic response in illumination and are capable of detecting illumination variations with frequencies well above 1 MHz.
• article_number: 5468652
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5468652
• html_url: https://ieeexplore.ieee.org/document/5468652/
• abstract_url: https://ieeexplore.ieee.org/document/5468652/
• publication_title: ESSCIRC '96: Proceedings of the 22nd European Solid-State Circuits Conference
• conference_location: Neuchatel, Switzerland
• conference_dates: 17-19 Sept. 1996
• publication_number: 5468575
• is_number: 5468576
• publication_year: 1996
• publication_date: 17-19 Sept. 1996
• start_page: 304
• end_page: 307
• citing_paper_count: 6
• citing_patent_count: 2
• download_count: 118
• insert_date: 20100601
• index_terms:
  • ieee_terms:
    • CMOS image sensors
    • Optical sensors
    • Image sampling
    • CMOS process
    • Electronic equipment testing
    • Lighting
    • Retina
    • Information processing
    • Machine vision
    • Inspection
  • dynamic_index_terms:
    • Illumination
    • Lighting
    • Image Acquisition System
    • Retinal Processing
    • Test Chip
    • Readout Electronics
    • Inspection Of Products
    • Light Intensity
    • Photodiode
    • Photocurrent
    • Sensor Output
    • Weak Inverse
    • Magnitude Of Intensity
    • Magnitude Of Volume
    • Output Line
    • Matching Properties
• isbn_formats:
  • format: Print ISBN, value: 2-86332-197-8, isbnType: Historical
• authors:
  • Author Name: R. Hauschild
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37347011400
    ID: 37347011400
    Order: 1
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: B.J. Hosticka
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37275079700
    ID: 37275079700
    Order: 2
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: S. Muller
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37400319900
    ID: 37400319900
    Order: 3
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: M. Schwarz
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37357836300
    ID: 37357836300
    Order: 4
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany

Image Sensor

• sensor_type: CMOS
• resolution: 32x32
• dynamic_range: >6 orders of magnitude
• pixel_size: 38.8µm x 33.6µm
• dark_current: in the order of pA

Optical Data

• focal_length: n/a
• aperture: n/a
• field_of_view: n/a
• distortion: n/a

Performance Metrics

• frame_rate: >1 MHz
• signal_to_noise_ratio: n/a
• sensitivity: n/a
• shutter_speed: n/a
• power_consumption: 5mW (5V)
• noise: >3dB attenuation at frequencies above 300kHz

Applications & Benefits

• cell_imaging: The CMOS image sensor is suitable for retinal information processing in bionic vision systems and product inspection.
• benefits: High dynamic range, ability to detect variations in illumination, and logarithmic response characteristics.

Supporting Organizations

• supported_by: Fraunhofer Institute of Microelectronic Circuits and Systems, Duisburg, Germany.

Manuscript Details

• publication_date: 17-19 Sept. 1996

Relevancy Score

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

Processed JSON Filename

request_0eb560db-a6c8-445e-9454-5798a10caecd-a_cmos_optical_sensor_system_performing_image_sampling_on_a_hexagonal_grid.json