Singlechip Cmos Image Sensors For A Retina Implant System

• doi: 10.1109/82.775382
• title: Single-chip CMOS image sensors for a retina implant system
• publisher: IEEE
• isbn:
• issn: 1558-125X
• rank: 3580
• access_type: LOCKED
• content_type: Journals
• abstract: This work describes the architecture and realization of microelectronic components for a retina-implant system that will provide visual sensations to patients suffering from photoreceptor degeneration. Special circuitry has been developed for a fast single-chip CMOS image sensor system, which provides high dynamic range of more than seven decades (without any electronic or mechanical shutter) corresponding to the performance of the human eye. This image sensor system is directly coupled to a digital filter and a signal processor that compute the so-called receptive-field function for generation of the stimulation data. These external components are wireless, linked to an implanted flexible silicon multielectrode stimulator, which generates electrical signals for electrostimulation of the intact ganglion cells. All components, including additional hardware for digital signal processing and wireless data and power transmission, have been fabricated using in-house standard CMOS technology.
• article_number: 775382
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=775382
• html_url: https://ieeexplore.ieee.org/document/775382/
• abstract_url: https://ieeexplore.ieee.org/document/775382/
• publication_title: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
• conference_location:
• conference_dates:
• publication_number: 82
• is_number: 16843
• publication_year: 1999
• publication_date: July 1999
• start_page: 870
• end_page: 877
• citing_paper_count: 44
• citing_patent_count: 8
• download_count: 578
• insert_date: 20020806
• index_terms:
  • ieee_terms:
    • CMOS image sensors
    • Retina
    • Implants
    • Signal generators
    • CMOS technology
    • Microelectronics
    • Photoreceptors
    • Circuits
    • Dynamic range
    • Humans
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Signal Processing
    • Dynamic Range
    • Ganglion Cells
    • Human Eye
    • Wireless Transmission
    • Radio Transmitters
    • Wireless Power Transfer
    • Beam Power
    • Wireless Energy Transfer
    • Digital Signal Processing
    • High Dynamic Range
    • Wireless Power
    • Wireless Data
    • Standard CMOS
    • Flexible Silicone
    • Mechanical Shutter
    • Electrode
    • Local Adaptation
    • Block Diagram
    • Silicon Wafer
    • Photocurrent
    • Spatial Filter
    • Electrical Interconnection
    • Gate-source Voltage
    • Random Pixel
• authors:
  • 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: 1
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • 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: 2
    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: 3
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: J. Huppertz
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37331483800
    ID: 37331483800
    Order: 4
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: T. Kneip
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37374927700
    ID: 37374927700
    Order: 5
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: S. Kolnsberg
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37374927500
    ID: 37374927500
    Order: 6
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: L. Ewe
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37089039843
    ID: 37089039843
    Order: 7
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
  • Author Name: Hoc Khiem Trieu
    Affiliation: Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany
    Author URL: https://ieeexplore.ieee.org/author/37087298069
    ID: 37087298069
    Order: 8
    Author Affiliations:
    • Fraunhofer Institute of Microelectronic Circuits and System, Duisburg, Germany

Image Sensor

• sensor_type: CMOS
• resolution: 128x128 and 400x300 pixels
• dynamic_range: 140 dB
• pixel_size: 53.4 µm
• dark_current: less than 1 µW/m^2

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: up to 150 Hz
• signal_to_noise_ratio: 56 dB
• sensitivity: quantum efficiency better than 60% at 650 nm, better than 40% between 500 and 850 nm
• power_consumption: 6 mW per preselected row for pixel addressing.

Applications & Benefits

• cell_imaging: Enables visual sensations to patients with photoreceptor degeneration through electrical stimulation of the retina.
• benefits: High dynamic range, wireless data transmission capabilities, and efficient local processing.

Supporting Organizations

• supported_by: German Federal Ministry of Education, Science, Research, and Technology (BMBF)

Manuscript Details

• publication_date: July 1999

Relevancy Score

• score: 10
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • noise

Processed JSON Filename

request_1a39c392-f0a8-423b-bd20-375a828357be-singlechip_cmos_image_sensors_for_a_retina_implant_system.json