A Twotap Nir Lockin Pixel Cmos Image Sensor With Background Light Cancelling Capability For Noncontact Heart Rate Detection

• doi: 10.1109/VLSIC.2018.8502349
• title: A Two-Tap NIR Lock-in Pixel CMOS Image Sensor with Background Light Cancelling Capability for Non-Contact Heart Rate Detection
• publisher: IEEE
• isbn: 978-1-5386-4215-3
• issn: 2158-5601
• rank: 975
• access_type: LOCKED
• content_type: Conferences
• abstract: A time-resolved CMOS image sensor (CIS) using two-tap near infrared (NIR) lock-in pixels with background light (BGL) cancelling capability for non-contact heart rate (HR) detection is presented. Aimed to the application, the sensor performances of 1.1e-rms temporal random noise and 90.1% maximum charge modulation ratio are achieved by using low noise readout circuit and in-pixel lateral electric field charge modulator (LEFM) techniques. The non-contact HR detection with accuracies of more than 98% is implemented by the developed sensor under both non-visible-light and fluctuant ambient-light brightness conditions. This remarkable performance indicates the superiority of the proposed technique for automotive security applications in particular.
• article_number: 8502349
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8502349
• html_url: https://ieeexplore.ieee.org/document/8502349/
• abstract_url: https://ieeexplore.ieee.org/document/8502349/
• publication_title: 2018 IEEE Symposium on VLSI Circuits
• conference_location: Honolulu, HI, USA
• conference_dates: 18-22 June 2018
• publication_number: 8484863
• is_number: 8502213
• publication_year: 2018
• publication_date: 18-22 June 2018
• start_page: 75
• end_page: 76
• citing_paper_count: 4
• citing_patent_count: 0
• download_count: 478
• insert_date: 20181025
• index_terms:
  • ieee_terms:
    • Modulation
    • Robot sensing systems
    • CMOS image sensors
    • Heart rate variability
    • Noise measurement
    • Vehicles
  • author_terms:
    • non-contact detection
    • time-resolved CIS
    • lock-in pixel
    • BGL cancelling
    • low temporal noise and LEFM
  • dynamic_index_terms:
    • Near-infrared
    • Image Sensor
    • Camera Sensor
    • Background Light
    • Heart Rate Detection
    • Non-contact Detection
    • Noncontact Heart Rate
    • Lateral Field
    • Charge Transition
    • Charge Modulation
    • Time-resolved Imaging
    • Temporal Noise
    • Modulation Ratio
    • Electrocardiogram
    • Electrocardiography
    • Near-infrared Light
    • Arbitrary Waveform Generator
    • Arbitrary Function Generator
    • Remote Detection
    • Red, Green And Blue
    • PIN Photodiode
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-5386-4215-3, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-5386-4214-6, isbnType: New-2005
• authors:
  • Author Name: Chen Cao
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37086490163
    ID: 37086490163
    Order: 1
    Author Affiliations:
    • Shizuoka University
  • Author Name: Yuya Shirakawa
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37085993272
    ID: 37085993272
    Order: 2
    Author Affiliations:
    • Shizuoka University
  • Author Name: Leyi Tan
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37086491487
    ID: 37086491487
    Order: 3
    Author Affiliations:
    • Shizuoka University
  • Author Name: Min-Woong Seo
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/38063173500
    ID: 38063173500
    Order: 4
    Author Affiliations:
    • Shizuoka University
  • Author Name: Keiichiro Kagawa
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37278023200
    ID: 37278023200
    Order: 5
    Author Affiliations:
    • Shizuoka University
  • Author Name: Keita Yasutomi
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37680557800
    ID: 37680557800
    Order: 6
    Author Affiliations:
    • Shizuoka University
  • Author Name: Tomohiko Kosugi
    Affiliation: Brookman Technology Hamamatsu, Japan
    Author URL: https://ieeexplore.ieee.org/author/38236166000
    ID: 38236166000
    Order: 7
    Author Affiliations:
    • Brookman Technology Hamamatsu, Japan
  • Author Name: Satoshi Aoyama
    Affiliation: Brookman Technology Hamamatsu, Japan
    Author URL: https://ieeexplore.ieee.org/author/37408090900
    ID: 37408090900
    Order: 8
    Author Affiliations:
    • Brookman Technology Hamamatsu, Japan
  • Author Name: Nobukazu Teranishi
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37351891200
    ID: 37351891200
    Order: 9
    Author Affiliations:
    • Shizuoka University
  • Author Name: Norimichi Tsumura
    Affiliation: Chiba University, Chiba, Japan
    Author URL: https://ieeexplore.ieee.org/author/37530784000
    ID: 37530784000
    Order: 10
    Author Affiliations:
    • Chiba University, Chiba, Japan
  • Author Name: Shoji Kawahito
    Affiliation: Shizuoka University
    Author URL: https://ieeexplore.ieee.org/author/37300195700
    ID: 37300195700
    Order: 11
    Author Affiliations:
    • Shizuoka University

Image Sensor

• sensor_type: CMOS
• resolution: 1280(H) x 1024(V)
• dynamic_range: Not specified
• pixel_size: 7.1 μm
• dark_current: Not specified

Optical Data

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

Performance Metrics

• sensitivity: 134.8 ke-/lux·s
• noise: 1.1 e-rms

Applications & Benefits

• cell_imaging: Non-contact heart rate detection in automotive applications.
• benefits: High accuracy (>98%) in heart rate detection under varying ambient light conditions.

Supporting Organizations

• supported_by: KAKENHI No. 25220905, MEXT/JST COI-STREAM, ECOSYSTEM, DB HiTek

Manuscript Details

• publication_date: 18-22 June 2018

Relevancy Score

• score: 10
• missing_fields:
  • dynamic_range
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • signal_to_noise_ratio
  • shutter_speed
  • power_consumption

Processed JSON Filename

request_187f2211-dc77-403c-befa-af82dffe63fa-a_twotap_nir_lockin_pixel_cmos_image_sensor_with_background_light_cancelling_capability_for_noncontact_heart_rate_detection.json