Image Smoothing And Edge Detection Cmos Sensor Array With Improved Signal Output Range

• doi: 10.1109/ICMECH.2006.252521
• title: Image smoothing and edge detection CMOS sensor array with improved signal output range
• publisher: IEEE
• isbn: 0-7803-9713-4
• issn:
• rank: 2713
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper consists of design, simulation, layout, and test of a CMOS image sensor array. It is an analog nonlinear circuitry with on-board photoreceptors that acquire and process the image on a single, compact VLSI chip. Spatial image processing chips implementing resistive grid have been broadly explored. One of the main drawbacks of one group of these sensors is the large percentage of analog output signal loss due to the known low CMOS sensors sensitivity and the relative large offset of the readout amplifier caused by run-to-run and in chip process variations. In our design, we modified the pixel circuit and the read out transresistance amplifier gaining back close to fifty percent of the photo signal. The motivation of the overall chip is derived from its neurobiological counterpart. It models the first stage of retinal processing at the first synapse
• article_number: 4018356
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4018356
• html_url: https://ieeexplore.ieee.org/document/4018356/
• abstract_url: https://ieeexplore.ieee.org/document/4018356/
• publication_title: 2006 IEEE International Conference on Mechatronics
• conference_location: Budapest, Hungary
• conference_dates: 3-5 July 2006
• publication_number: 4018321
• is_number: 4018322
• publication_year: 2006
• publication_date: 3-5 July 2006
• start_page: 185
• end_page: 188
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 275
• insert_date: 20061204
• index_terms:
  • ieee_terms:
    • Sensor arrays
    • CMOS image sensors
    • Smoothing methods
    • Image edge detection
    • Circuit simulation
    • Circuit testing
    • Photoreceptors
    • Very large scale integration
    • Image processing
    • Signal processing
  • dynamic_index_terms:
    • Smoothing
    • Output Signal
    • Edge Detection
    • Sensor Array
    • CMOS Sensor Array
    • Impedance
    • Resistivity
    • Light Intensity
    • Voltage-gated
    • Gate Voltage
    • Offset Voltage
    • Phototransistor
• isbn_formats:
  • format: CD, value: 0-7803-9713-4, isbnType: Historical
  • format: Print ISBN, value: 0-7803-9712-6, isbnType: Historical
• authors:
  • Author Name: Tamas Zeffer
    Affiliation: Department of Electrical Engineering, University of Arkansas, Little Rock, Budapest, Hungary
    Author URL: https://ieeexplore.ieee.org/author/37294282400
    ID: 37294282400
    Order: 1
    Author Affiliations:
    • Department of Electrical Engineering, University of Arkansas, Little Rock, Budapest, Hungary
  • Author Name: Jerry Yeargan
    Affiliation: Electrical Engineering Department College of Engineering, 3217 Bell Engineering Center, University of Arkansas, Little Rock, Fayetteville, AR, USA
    Author URL: https://ieeexplore.ieee.org/author/37296273500
    ID: 37296273500
    Order: 2
    Author Affiliations:
    • Electrical Engineering Department College of Engineering, 3217 Bell Engineering Center, University of Arkansas, Little Rock, Fayetteville, AR, USA

Image Sensor

• sensor_type: CMOS
• resolution: 15x12 pixels
• dynamic_range: Improved, up to fifty percent
• pixel_size: 48 µm2 per pixel
• dark_current: Not explicitly mentioned, but mentioned that amplifiers improve performance at lower light levels

Optical Data

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

Performance Metrics

• signal_to_noise_ratio: Not explicitly provided, but improved signal output range noted
• sensitivity: Sensitivity of the image sensor to be improved up to lower levels of light intensity
• power_consumption: Not explicitly mentioned, but enhancements to power efficiency are implied with design changes
• noise: Output offset voltage minimized to micrometre range with less than 1% signal loss

Applications & Benefits

• cell_imaging: The CMOS sensor array is designed to perform image smoothing and edge detection which may be applicable for imaging biological cells
• benefits: Higher output signal range with reduced signal loss and smaller output offset

Supporting Organizations

• supported_by: Department of Electrical Engineering, University of Arkansas

Manuscript Details

• publication_date: 3-5 July 2006

Relevancy Score

• score: 9
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • noise

Processed JSON Filename

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