A Wide Dynamic Range Cmos Image Sensor Based On A New Gamma Correction Technique

• doi: 10.1109/ISOCC.2012.6407057
• title: A wide dynamic range CMOS image sensor based on a new gamma correction technique
• publisher: IEEE
• isbn: 978-1-4673-2988-0
• issn:
• partnum: 12EX7551
• rank: 1340
• access_type: LOCKED
• content_type: Conferences
• abstract: Many kinds of wide dynamic range (WDR) CMOS Image Sensors (CIS) have been developed, such as a multiple sampling, a multiple exposure technique, and so on. However, those techniques have some drawbacks of noise increasing, large power consumption, and huge chip area. In this paper, a new Single-Slope ADC (SS-ADC) for gamma correction with a nonlinear counter is described. Since the proposed scheme is easily implemented with a simple algorithm, we can reduce power consumption and chip area drastically. Further, the new SS-ADC for gamma correction enhances the Dynamic Range (DR) by 24dB. The proposed ADC, which has been fabricated using a 0.13um CIS process, achieves a 57.6dB SNDR at 50kS/s.
• article_number: 6407057
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6407057
• html_url: https://ieeexplore.ieee.org/document/6407057/
• abstract_url: https://ieeexplore.ieee.org/document/6407057/
• publication_title: 2012 International SoC Design Conference (ISOCC)
• conference_location: Jeju, Korea (South)
• conference_dates: 4-7 Nov. 2012
• publication_number: 6395852
• is_number: 6406249
• publication_year: 2012
• publication_date: 4-7 Nov. 2012
• start_page: 131
• end_page: 134
• citing_paper_count: 0
• citing_patent_count: 2
• download_count: 383
• insert_date: 20130110
• index_terms:
  • ieee_terms:
    • Radiation detectors
    • CMOS image sensors
    • Dynamic range
    • Power demand
    • CMOS process
    • Random access memory
    • Object recognition
  • author_terms:
    • CMOS image sensor
    • Gamma correction ADC
    • wide dynamic range
    • single-slope ADC
  • dynamic_index_terms:
    • Gamma Correction
    • Dynamic Sensor
    • Power Consumption
    • Multiple Exposures
    • Chip Area
    • Large Power Consumption
    • Dark Conditions
    • High Contrast
    • High Gain
    • Dark Regions
    • Bright Regions
    • Nonlinear Modes
    • Bright Conditions
• isbn_formats:
  • format: Online ISBN, value: 978-1-4673-2988-0, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4673-2989-7, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4673-2990-3, isbnType: New-2005
• authors:
  • Author Name: Yeonseong Hwang
    Affiliation: Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
    Author URL: https://ieeexplore.ieee.org/author/37088012815
    ID: 37088012815
    Order: 1
    Author Affiliations:
    • Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
  • Author Name: Jangwoo Lee
    Affiliation: Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
    Author URL: https://ieeexplore.ieee.org/author/37088013678
    ID: 37088013678
    Order: 2
    Author Affiliations:
    • Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
  • Author Name: Daeyun Kim
    Affiliation: Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
    Author URL: https://ieeexplore.ieee.org/author/37087189732
    ID: 37087189732
    Order: 3
    Author Affiliations:
    • Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
  • Author Name: Minkyu Song
    Affiliation: Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea
    Author URL: https://ieeexplore.ieee.org/author/37087191066
    ID: 37087191066
    Order: 4
    Author Affiliations:
    • Dept. Semiconductor Science, Dongguk Univ, Seoul, Korea

Image Sensor

• sensor_type: CMOS
• resolution: 320 x 240 pixels
• dynamic_range: 80dB
• pixel_size: 2.25 um x 2.25 um
• 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: 81 fps (normal mode), 58 fps (low nonlinear mode), 37 fps (high nonlinear mode)
• signal_to_noise_ratio: 57.6dB
• power_consumption: 30mW
• noise: 0.1% Pixel FPN, 0.15% Column FPN

Applications & Benefits

• cell_imaging: used in applications such as digital cameras, mobile phones, car black boxes, security cameras
• benefits: high-contrast image capturing and better performance in high dynamic range scenarios with reduced power consumption and chip area.

Supporting Organizations

• supported_by: National Research Foundation of Korea, Ministry of Education, Science and Technology, ETRI SW-SOC R&D Center, Ministry of Knowledge Economy, Korea

Manuscript Details

• publication_date: 4-7 Nov. 2012

Relevancy Score

• score: 10

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