A 126 Mw 83 Meventss Contrast Detection 128128 Imager With 75 Db Intrascene Dr Asynchronous Randomaccess Digital Readout

• doi: 10.1109/BioCAS.2014.6981788
• title: A 12.6 mW 8.3 Mevents/s contrast detection 128×128 imager with 75 dB intra-scene DR asynchronous random-access digital readout
• publisher: IEEE
• isbn: 978-1-4799-2346-5
• issn: 2163-4025
• rank: 276
• access_type: LOCKED
• content_type: Conferences
• abstract: We present a temporal contrast detection event-driven asynchronous 128×128 pixel image sensor with integrated 10-bit ADC intensity readout in 0.18 μm 6M 1P CMOS. Current-mode log-compressed readout with correlated double sampling (CDS) offset compensation provides random access to instantaneous pixel intensity over 75 dB intra-scene dynamic range. Temporal correlated double sampling in “on” and “off” transient event detection reduces capacitor sizing requirements within the pixel. Global threshold adaptation using common-mode capacitive coupling across the pixel array compensates for global scene lighting variations. Power consumption at 8.3 Mevents/s is 12.6 mW from a 1.8 V supply, or 1.52 nJ per pixel event detection and readout. Die size is 5mm×5mm and pixel size is 33μm×33μm with 22.8% fill factor.
• article_number: 6981788
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6981788
• html_url: https://ieeexplore.ieee.org/document/6981788/
• abstract_url: https://ieeexplore.ieee.org/document/6981788/
• publication_title: 2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings
• conference_location: Lausanne, Switzerland
• conference_dates: 22-24 Oct. 2014
• publication_number: 6968677
• is_number: 6981625
• publication_year: 2014
• publication_date: 22-24 Oct. 2014
• start_page: 564
• end_page: 567
• citing_paper_count: 2
• citing_patent_count: 0
• download_count: 392
• insert_date: 20141211
• index_terms:
  • ieee_terms:
    • Dynamic range
    • Sensors
    • Retina
    • Event detection
    • Lighting
    • Image sensors
    • Arrays
  • dynamic_index_terms:
    • Power Consumption
    • Pixel Intensity
    • Event Detection
    • Image Sensor
    • Camera Sensor
    • Random Access
    • Fill Factor
    • Capacitive Coupling
    • AC-coupled
    • Electrostatic Coupling
    • Global Adaptation
    • Temporal Contrast
    • Temporal Changes
    • Change Detection
    • Ganglion Cells
    • Arbitration
    • Photocurrent
    • Reference Phase
    • Amplification Stage
    • Registration Of Events
    • Capacitance Ratio
    • Dynamic Vision Sensor
    • Event Camera
• isbn_formats:
  • format: Electronic ISBN, value: 978-1-4799-2346-5, isbnType: New-2005
• authors:
  • Author Name: Jongkil Park
    Affiliation: University of California, San Diego, CA
    Author URL: https://ieeexplore.ieee.org/author/37407055300
    ID: 37407055300
    Order: 1
    Author Affiliations:
    • University of California, San Diego, CA
  • Author Name: Sohmyung Ha
    Affiliation: University of California, San Diego, CA
    Author URL: https://ieeexplore.ieee.org/author/37085335718
    ID: 37085335718
    Order: 2
    Author Affiliations:
    • University of California, San Diego, CA
  • Author Name: Chul Kim
    Affiliation: University of California, San Diego, CA
    Author URL: https://ieeexplore.ieee.org/author/37085335737
    ID: 37085335737
    Order: 3
    Author Affiliations:
    • University of California, San Diego, CA
  • Author Name: Siddharth Joshi
    Affiliation: University of California, San Diego, CA
    Author URL: https://ieeexplore.ieee.org/author/38593214100
    ID: 38593214100
    Order: 4
    Author Affiliations:
    • University of California, San Diego, CA
  • Author Name: Theodore Yu
    Affiliation: Texas Instruments, Santa Clara, CA
    Author URL: https://ieeexplore.ieee.org/author/37402322000
    ID: 37402322000
    Order: 5
    Author Affiliations:
    • Texas Instruments, Santa Clara, CA
  • Author Name: Wei Ma
    Affiliation: Texas Instruments, Santa Clara, CA
    Author URL: https://ieeexplore.ieee.org/author/37085336360
    ID: 37085336360
    Order: 6
    Author Affiliations:
    • Texas Instruments, Santa Clara, CA
  • Author Name: Gert Cauwenberghs
    Affiliation: University of California, San Diego, CA
    Author URL: https://ieeexplore.ieee.org/author/37270866000
    ID: 37270866000
    Order: 7
    Author Affiliations:
    • University of California, San Diego, CA

Image Sensor

• sensor_type: CMOS
• resolution: 128x128
• dynamic_range: 75 dB
• pixel_size: 33 µm x 33 µm
• dark_current: not specified

Optical Data

• focal_length: 5.7 mm
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

• frame_rate: 8.3 Mevents/s
• power_consumption: 12.6 mW

Applications & Benefits

• cell_imaging: not specified
• benefits: Event-driven operation enables efficient high-speed image capture.

Supporting Organizations

• supported_by: University of California San Diego, Texas Instruments

Manuscript Details

• publication_date: 22-24 Oct. 2014

Relevancy Score

• score: 10

Processed JSON Filename

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