A Timebased Cmos Image Sensor

• doi: 10.1109/ISCAS.2004.1329135
• title: A time-based CMOS image sensor
• publisher: IEEE
• isbn: 0-7803-8251-X
• issn:
• partnum: 04CH37512
• rank: 1328
• access_type: LOCKED
• content_type: Conferences
• abstract: A two-degree of freedom time-based CMOS image sensor is proposed in this paper for wide dynamic range imaging. Instead of reading analog voltages off chip, a time representation is used to record when the photodetector voltage drops below a time-varying threshold. The time measurements and the reference voltage waveform are used to reconstruct the image. Experimental results verify that the two-degree of freedom sampling technique is feasible for wide dynamic range imaging in video mode.
• article_number: 1329135
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1329135
• html_url: https://ieeexplore.ieee.org/document/1329135/
• abstract_url: https://ieeexplore.ieee.org/document/1329135/
• publication_title: 2004 IEEE International Symposium on Circuits and Systems (ISCAS)
• conference_location: Vancouver, BC, Canada
• conference_dates: 23-26 May 2004
• publication_number: 9255
• is_number: 29375
• publication_year: 2004
• publication_date: 23-26 May 2004
• start_page: IV
• end_page: 840
• citing_paper_count: 4
• citing_patent_count: 3
• download_count: 207
• insert_date: 20040903
• index_terms:
  • ieee_terms:
    • CMOS image sensors
    • Dynamic range
    • Pixel
    • Image sampling
    • Time measurement
    • CMOS process
    • Threshold voltage
    • Photodetectors
    • Power supplies
    • Bandwidth
  • dynamic_index_terms:
    • Dynamic Range
    • Dynamic Imaging
    • Sampling Time
    • Integration Time
    • Photodiode
    • Image Reconstruction
    • Iterative Reconstruction
    • Tomographic Reconstruction
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Conventional Imaging
    • Bitplane
    • Raster Scan
    • Pixel Array
    • Shift Register
    • Output Pixel
    • Video Applications
    • Read Off
    • Readout Scheme
    • Readout Strategy
• isbn_formats:
  • format: Print ISBN, value: 0-7803-8251-X, isbnType: Historical
• authors:
  • Author Name: Qiang Luo
    Affiliation: Computational Neuro-Engineering Laboratory, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37087216872
    ID: 37087216872
    Order: 1
    Author Affiliations:
    • Computational Neuro-Engineering Laboratory, University of Florida, Gainesville, FL, USA
  • Author Name: J.G. Harris
    Affiliation: Computational Neuro-Engineering Laboratory, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37276486200
    ID: 37276486200
    Order: 2
    Author Affiliations:
    • Computational Neuro-Engineering Laboratory, University of Florida, Gainesville, FL, USA

Image Sensor

• sensor_type: CMOS
• resolution: 32x32 pixels
• dynamic_range: 115dB
• pixel_size: 50µm
• dark_current: Not specified

Optical Data

• focal_length: 4mm
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: 30 fps
• sensitivity: 6.4 V/lux·s
• power_consumption: 3.78mW
• noise: Temporal noise: 0.20%, FPN: 0.22%

Applications & Benefits

• cell_imaging: Not specified
• benefits: Enables wide dynamic range imaging in video mode without analog-to-digital conversion.

Supporting Organizations

• supported_by: Dr. Julian Chen in Texas Instruments Inc.

Manuscript Details

• publication_date: 23-26 May 2004

Relevancy Score

• score: 10
• missing_fields:
  • quantum_efficiency
  • readout_speed
  • noise_sources
  • design_considerations

Processed JSON Filename

request_9ffbc978-ef61-470e-9725-bc5c86e925a5-a_timebased_cmos_image_sensor.json