A Timetofirstspike Cmos Image Sensor

• doi: 10.1109/JSEN.2007.900937
• title: A Time-to-First-Spike CMOS Image Sensor
• publisher: IEEE
• isbn:
• issn: 2379-9153
• rank: 970
• access_type: LOCKED
• content_type: Journals
• abstract: A time-to-first-spike (TTFS) imager was designed such that each pixel outputs a single digital pulse whose timing encodes pixel illumination. For still image applications, this time representation provides a tremendous increase in dynamic range, similar to that of other existing time-based imagers. However, a major advantage of the TTFS imager is that this wide dynamic range can be achieved even for 30 frames/s video applications. A prototype 32times32 TTFS image sensor was fabricated in AMI 0.5 mum CMOS technology. The prototype chip demonstrates a 104 dB dynamic range (limited by the optical equipment), 42 V/electron conversion gain, 1.25 nA/cm2 dark current, and 3.1 mW power consumption at 30 frames/s.
• article_number: 4260981
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4260981
• html_url: https://ieeexplore.ieee.org/document/4260981/
• abstract_url: https://ieeexplore.ieee.org/document/4260981/
• publication_title: IEEE Sensors Journal
• conference_location:
• conference_dates:
• publication_number: 7361
• is_number: 4214860
• publication_year: 2007
• publication_date: Aug. 2007
• start_page: 1165
• end_page: 1175
• citing_paper_count: 54
• citing_patent_count: 2
• download_count: 1055
• insert_date: 20070625
• index_terms:
  • ieee_terms:
    • CMOS image sensors
    • Dynamic range
    • Pixel
    • Prototypes
    • CMOS technology
    • Timing
    • Lighting
    • Image sensors
    • Ambient intelligence
    • Electron optics
  • author_terms:
    • CMOS imagers
    • dynamic range (DR) enhancement
    • time-to-first-spike (TTFS) imager
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Illumination
    • Lighting
    • Dynamic Range
    • Still Images
    • Dark Current
    • CMOS Technology
    • Conversion Gain
    • Output Pixel
    • Optical Equipment
    • Time Domain
    • Integration Time
    • Photocurrent
    • Circuit Design
    • Noise Floor
    • High Dynamic Range
    • Histogram Equalization
    • Digital Circuits
    • Digital Circuitry
    • Mean Relative Error
    • Firing Time
    • Temporal Coding
    • Temporal Encoding
    • Readout Circuit
    • Rolling Shutter
    • Amount Of Delay
    • Temporal Noise
    • Pixel Time
    • Time For Each Pixel
    • Readout Noise
    • Counter Value
    • Electromagnetic Compatibility
    • Dark Pixels
    • Fabrication Process
• authors:
  • Author Name: Xiaochuan Guo
    Affiliation: Silicon Laboratories, Inc., Austin, TX, USA
    Author URL: https://ieeexplore.ieee.org/author/37280353600
    ID: 37280353600
    Order: 1
    Author Affiliations:
    • Silicon Laboratories, Inc., Austin, TX, USA
  • Author Name: Xin Qi
    Affiliation: Computational NeuroEngineering Laboratory, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37273777000
    ID: 37273777000
    Order: 2
    Author Affiliations:
    • Computational NeuroEngineering Laboratory, University of Florida, Gainesville, FL, USA
  • Author Name: John G. Harris
    Affiliation: Computational NeuroEngineering Laboratory, University of Florida, Gainesville, FL, USA
    Author URL: https://ieeexplore.ieee.org/author/37276486200
    ID: 37276486200
    Order: 3
    Author Affiliations:
    • Computational NeuroEngineering Laboratory, University of Florida, Gainesville, FL, USA

Image Sensor

• sensor_type: CMOS
• resolution: 32x32
• dynamic_range: 104 dB
• pixel_size: 4.8 µm x 5.1 µm
• dark_current: 1.25 nA/cm²

Optical Data

• focal_length:
• aperture:
• field_of_view:
• distortion:

Performance Metrics

• frame_rate: 30 fps
• signal_to_noise_ratio:
• sensitivity:
• shutter_speed:
• power_consumption: 3.1 mW
• noise:

Applications & Benefits

• cell_imaging:
• benefits: Wide dynamic range achieved even for 30 frames/s video applications.

Supporting Organizations

• supported_by: National Science Foundation (NSF), NASA

Manuscript Details

• publication_date: Aug. 2007

Relevancy Score

• score: 10
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • noise

Processed JSON Filename

request_e9b62ca4-7c3d-40e7-bfac-ddba4dfb6cac-a_timetofirstspike_cmos_image_sensor.json