A Timetofirst Spike Cmos Imager

• doi: 10.1109/ISCAS.2004.1329131
• title: A time-to-first spike CMOS imager
• publisher: IEEE
• isbn: 0-7803-8251-X
• issn:
• partnum: 04CH37512
• rank: 1332
• access_type: LOCKED
• content_type: Conferences
• abstract: A novel time-to-first-spike CMOS imager is presented, in which the timing of a single spike from each pixel encodes the illuminance of each pixel. This temporal representation of illuminance can widen the image sensor dynamic range to over 100 dB. To reduce power consumption, an asynchronous address-event readout technique is incorporated. The imager essentially implements a pixel-level A/D conversion and benefits from the continued process scaling to deep submicron levels. Results are shown from a 32/spl times/32 pixel imager fabricated in the 0.5 /spl mu/m AMI process with measured dynamic range of 104 dB in one image. A test chip with one pixel and digital control logic has been fabricated through MOSIS using the TSMC 0.18 /spl mu/m standard digital CMOS process. It has demonstrated the expected functionalities. A modified architecture is also proposed for a larger imager array.
• article_number: 1329131
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1329131
• html_url: https://ieeexplore.ieee.org/document/1329131/
• abstract_url: https://ieeexplore.ieee.org/document/1329131/
• publication_title: 2004 IEEE International Symposium on Circuits and Systems (ISCAS)
• conference_location: Vancouver, BC
• 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: 824
• citing_paper_count: 17
• citing_patent_count: 3
• download_count: 440
• insert_date: 20040903
• index_terms:
  • ieee_terms:
    • Pixel
    • CMOS image sensors
    • Dynamic range
    • Logic testing
    • Timing
    • Image sensors
    • Energy consumption
    • Image converters
    • Ambient intelligence
    • Semiconductor device measurement
  • dynamic_index_terms:
    • Dynamic Range
    • Image Sensor
    • Camera Sensor
    • Test Chip
    • Integration Time
    • Photodiode
    • Control Signal
    • System Architecture
    • Photocurrent
    • Network Bandwidth
    • Data Bandwidth
    • Modulation Bandwidth
    • Internet Bandwidth
    • High Dynamic Range
    • CMOS Technology
    • Digital Circuits
    • Digital Circuitry
    • Firing Time
    • Voltage Swing
    • Electromagnetic Compatibility
    • High Dynamic Range Image
    • Rolling Shutter
    • Open-loop Gain
• isbn_formats:
  • format: Print ISBN, value: 0-7803-8251-X, isbnType: Historical
• authors:
  • Author Name: Xin Qi
    Affiliation: Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37087215700
    ID: 37087215700
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
  • Author Name: Xiaochuan Guo
    Affiliation: Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37087215053
    ID: 37087215053
    Order: 2
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
  • Author Name: J.G. Harris
    Affiliation: Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37276486200
    ID: 37276486200
    Order: 3
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA

Image Sensor

• sensor_type: CMOS
• resolution: 32x32 pixels
• dynamic_range: 104dB
• pixel_size: 12.4 x 12.1 µm
• dark_current: not specified

Optical Data

• focal_length: not specified
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

Applications & Benefits

• cell_imaging: The sensor is designed to effectively capture high dynamic range images, applicable in scenarios like cell imaging and other digital imaging tasks.
• benefits: Enhanced dynamic range (over 100dB), lower power consumption, and reduced bandwidth requirements due to the asynchronous readout.

Supporting Organizations

• supported_by: Julian Chen and Texas Instrument for funding and technical support.

Manuscript Details

• publication_date: 23-26 May 2004

Relevancy Score

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

Processed JSON Filename

request_531583a5-f41a-4334-bf9b-b303ca156d3a-a_timetofirst_spike_cmos_imager.json