An Accuracyarea Tradeoff For Mixedsignal Computation In Programmable Smart Image Sensors

• doi: 10.1109/NEWCAS.2018.8585521
• title: An Accuracy-Area Tradeoff for Mixed-Signal Computation in Programmable Smart Image Sensors
• publisher: IEEE
• isbn: 978-1-5386-4860-5
• issn:
• rank: 1461
• access_type: LOCKED
• content_type: Conferences
• abstract: Tightly embedded systems often require low power real time processing of acquired sensor data. This paper presents the design and transistor-level implementation of a mixed-signal processing element for highly area-constrained systems in applications where approximate computing is sufficient. The analog processing unit consists of a switched capacitor circuit whose imperfections such as finite gain or offset errors are evaluated here through theoretical analyses and Monte Carlo simulations for a CMOS 0.35μm technology. Transistor-level simulation results further demonstrate that this processing unit is suitable for image pre-processing tasks such as spatial convolution for edge detection.
• article_number: 8585521
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8585521
• html_url: https://ieeexplore.ieee.org/document/8585521/
• abstract_url: https://ieeexplore.ieee.org/document/8585521/
• publication_title: 2018 16th IEEE International New Circuits and Systems Conference (NEWCAS)
• conference_location: Montreal, QC, Canada
• conference_dates: 24-27 June 2018
• publication_number: 8572699
• is_number: 8585422
• publication_year: 2018
• publication_date: 24-27 June 2018
• start_page: 256
• end_page: 260
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 65
• insert_date: 20181223
• index_terms:
  • ieee_terms:
    • Capacitors
    • Image sensors
    • Approximate computing
    • Convolution
    • Switching circuits
    • Inverters
    • Control systems
  • author_terms:
    • Algorithm-architecture matching
    • approximate computing
    • mixed analog-digital electronics
    • smart image sensor
    • vision system on a chip (VSoC)
  • dynamic_index_terms:
    • Convolution
    • Monte Carlo Simulation
    • Monte Carlo Method
    • Theoretical Analysis
    • Processing Unit
    • Processing Elements
    • Approximate Computation
    • Approximate Calculation
    • Switched Capacitor
    • Switched-capacitor
    • Offset Error
    • Linear Combination
    • Design Considerations
    • Input Voltage
    • Lower Gain
    • Standard Technology
    • Charge Injection
    • Smart Sensors
    • Image Processing Tasks
    • Analog Domain
    • Virtual Reference
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-5386-4860-5, isbnType: New-2005
  • format: USB ISBN, value: 978-1-5386-1513-3, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-5386-4859-9, isbnType: New-2005
• authors:
  • Author Name: Juliette LE HIR
    Affiliation: GeePs | Group of electrical engineering–Paris, UMR CNRS 8507, CentraleSupelec, Univ. Paris-Sud, Univ. Paris-Saclay, Sorbonne Univ., UPMC Univ Paris 06, Gif-sur-Yvette, France
    Author URL: https://ieeexplore.ieee.org/author/37086558865
    ID: 37086558865
    Order: 1
    Author Affiliations:
    • GeePs | Group of electrical engineering–Paris, UMR CNRS 8507, CentraleSupelec, Univ. Paris-Sud, Univ. Paris-Saclay, Sorbonne Univ., UPMC Univ Paris 06, Gif-sur-Yvette, France
  • Author Name: Filipe VINCI DOS SANTOS
    Affiliation: SANA | Advanced Analog Design Group, CentraleSupelec, Gif-sur-Yvette, France
    Author URL: https://ieeexplore.ieee.org/author/37085683263
    ID: 37085683263
    Order: 2
    Author Affiliations:
    • SANA | Advanced Analog Design Group, CentraleSupelec, Gif-sur-Yvette, France
  • Author Name: Anthony KOLAR
    Affiliation: GeePs | Group of electrical engineering–Paris, UMR CNRS 8507, CentraleSupelec, Univ. Paris-Sud, Univ. Paris-Saclay, Sorbonne Univ., UPMC Univ Paris 06, Gif-sur-Yvette, France
    Author URL: https://ieeexplore.ieee.org/author/37547576800
    ID: 37547576800
    Order: 3
    Author Affiliations:
    • GeePs | Group of electrical engineering–Paris, UMR CNRS 8507, CentraleSupelec, Univ. Paris-Sud, Univ. Paris-Saclay, Sorbonne Univ., UPMC Univ Paris 06, Gif-sur-Yvette, France

Image Sensor

• sensor_type: CMOS
• resolution: 134x66 pixels
• dynamic_range: 76.7dB
• pixel_size: unknown
• dark_current: unknown

Optical Data

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

Performance Metrics

• frame_rate: 25 fps
• signal_to_noise_ratio: unknown
• sensitivity: unknown
• shutter_speed: 1/25s
• power_consumption: low power
• noise: unknown

Applications & Benefits

• cell_imaging: Details on cell imaging applications not provided.
• benefits: Approximate computing in analog domain for low power, area-constrained smart image sensors.

Supporting Organizations

• supported_by: unknown

Manuscript Details

• publication_date: 24-27 June 2018

Relevancy Score

• score: 8
• missing_fields:
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • noise
  • supported_by

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