Digital Background Calibration Technique To Mitigate Vertical Fpn In Cmos Image Sensors

• doi: 10.1109/PRIMEAsia60757.2023.00014
• title: Digital Background Calibration Technique to Mitigate Vertical FPN in CMOS Image Sensors
• publisher: IEEE
• isbn: 979-8-3503-7098-0
• issn: 2159-2144
• rank: 2285
• access_type: LOCKED
• content_type: Conferences
• abstract: A digital background calibration technique to mitigate vertical FPN (VFPN) in CMOS image sensors is proposed in this work. The technique takes outputs of two adjacent ADC in the column as input to LMS filter. The filter weights are updated iteratively until the difference in ADC outputs converges to a minimum. A prototype 10-bit ADC with the worst-case error of 1/2 MSB is implemented and simulated in MATLAB as a proof of concept. It is observed that the difference in ADC outputs is converged to 5e-7 from 5e-3 using hyperparameters $\mu_{e}$ and $\mu_{w}$ equal to $2^{-12}$ and $2^{-17}$, respectively.
• article_number: 10740081
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10740081
• html_url: https://ieeexplore.ieee.org/document/10740081/
• abstract_url: https://ieeexplore.ieee.org/document/10740081/
• publication_title: 2023 IEEE Asia Pacific Conference On Postgraduate Research In Microelectronics And Electronics (PRIMEAsia)
• conference_location: Hyderabad, India
• conference_dates: 19-22 Nov. 2023
• publication_number: 10740012
• is_number: 10740064
• publication_year: 2023
• publication_date: 19-22 Nov. 2023
• start_page: 20
• end_page: 22
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 41
• insert_date: 20241106
• index_terms:
  • ieee_terms:
    • Asia
    • Prototypes
    • CMOS image sensors
    • Calibration
    • Microelectronics
    • MATLAB
  • dynamic_index_terms:
    • Digital Calibration
    • Background Calibration
    • Proof Of Concept
    • Iterative Convergence
    • Pixel Pitch
    • Mode Of Integration
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 979-8-3503-7098-0, isbnType: New-2005
  • format: Electronic ISBN, value: 979-8-3503-7097-3, isbnType: New-2005
• authors:
  • Author Name: Bibhudutta Satapathy
    Affiliation: Department of Electrical Engineering, IIT, Jodhpur, India
    Author URL: https://ieeexplore.ieee.org/author/37088900521
    ID: 37088900521
    Order: 1
    Author Affiliations:
    • Department of Electrical Engineering, IIT, Jodhpur, India
  • Author Name: Pratham Chaurasia
    Affiliation: Department of Electrical Engineering, IIT, Jodhpur, India
    Author URL: https://ieeexplore.ieee.org/author/929870844067735
    ID: 929870844067735
    Order: 2
    Author Affiliations:
    • Department of Electrical Engineering, IIT, Jodhpur, India
  • Author Name: Amandeep Kaur
    Affiliation: Department of Electrical Engineering, IIT, Jodhpur, India
    Author URL: https://ieeexplore.ieee.org/author/37085856535
    ID: 37085856535
    Order: 3
    Author Affiliations:
    • Department of Electrical Engineering, IIT, Jodhpur, India

Image Sensor

• sensor_type: CMOS
• resolution: Not specified
• dynamic_range: Not specified
• pixel_size: Not specified
• dark_current: Not specified

Optical Data

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

Performance Metrics

• frame_rate: 5000 fps
• noise: Estimated error reduced from 5e-3 to 5e-7

Applications & Benefits

• cell_imaging: Not specified
• benefits: Mitigates VFPN without extra pixel pitch and power requirement

Supporting Organizations

• supported_by: Biotechnology Industry Research Assistance Council (BIRAC) - BIG

Manuscript Details

• publication_date: 19-22 Nov. 2023

Relevancy Score

• score: 9
• missing_fields:
  • resolution
  • dynamic_range
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • power_consumption
  • cell_imaging
  • benefits

Processed JSON Filename

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