Octagonal Cmos Image Sensor With Strobed Rgb Led Illumination For Wireless Capsule Endoscopy

• doi: 10.1109/ISCAS.2014.6865520
• title: Octagonal CMOs image sensor with strobed RGB LED illumination for wireless capsule endoscopy
• publisher: IEEE
• isbn: 978-1-4799-3431-7
• issn: 2158-1525
• rank: 3162
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper proposes a novel, octagonal shaped CMOS image sensor (CIS) array for use in tandem with colored LED illumination and a corresponding, innovative pixel scanning method. The octagonal shape of the pixel array allows the CIS to make near-optimal use of silicon real estate by matching the perimeter of the pixel array to the focal plane area of lenses used in Wireless Capsule Endoscopies (WCE). Providing illumination by sequencing different-colored LEDs allows the system to reuse the same pixels to capture different colors at different times, thus removing the need for manufacturing a Color Filter Array (CFA) and effectively trading temporal for spatial resolution. The system was designed with AMS 0.35µm 2P4M CMOS technology. The simulated system consumes 1.06 mW from a 2.5 V supply at 2.217 frames/sec operation.
• article_number: 6865520
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6865520
• html_url: https://ieeexplore.ieee.org/document/6865520/
• abstract_url: https://ieeexplore.ieee.org/document/6865520/
• publication_title: 2014 IEEE International Symposium on Circuits and Systems (ISCAS)
• conference_location: Melbourne, VIC, Australia
• conference_dates: 1-5 June 2014
• publication_number: 6852006
• is_number: 6865048
• publication_year: 2014
• publication_date: 1-5 June 2014
• start_page: 1857
• end_page: 1860
• citing_paper_count: 4
• citing_patent_count: 0
• download_count: 293
• insert_date: 20140726
• index_terms:
  • ieee_terms:
    • Image color analysis
    • Arrays
    • Electronics packaging
    • Color
    • Signal processing
    • Light emitting diodes
    • Capacitors
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Wireless Capsule Endoscopy
    • Use Of Arrays
    • Signal Processing
    • Image Resolution
    • Scan Mode
    • Photocurrent
    • State Machine
    • Finite-state
    • Finite State Machine
    • Gain Settings
    • Inductive Load
    • Load Capacitance
    • Incident Light Intensity
    • Color Processing
    • Conventional Array
    • Low Power Requirements
    • Reset Voltage
    • Serial Peripheral Interface
• isbn_formats:
  • format: CD, value: 978-1-4799-3431-7, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4799-3432-4, isbnType: New-2005
• authors:
  • Author Name: Satoshi Yoshizaki
    Affiliation: Centre for Bio-Inspired Technology, Imperial College, London, UK
    Author URL: https://ieeexplore.ieee.org/author/37086718766
    ID: 37086718766
    Order: 1
    Author Affiliations:
    • Centre for Bio-Inspired Technology, Imperial College, London, UK
  • Author Name: Alexantrou Serb
    Affiliation: Centre for Bio-Inspired Technology, Imperial College, London, UK
    Author URL: https://ieeexplore.ieee.org/author/37085356940
    ID: 37085356940
    Order: 2
    Author Affiliations:
    • Centre for Bio-Inspired Technology, Imperial College, London, UK
  • Author Name: Yan Liu
    Affiliation: Centre for Bio-Inspired Technology, Imperial College, London, UK
    Author URL: https://ieeexplore.ieee.org/author/37537567000
    ID: 37537567000
    Order: 3
    Author Affiliations:
    • Centre for Bio-Inspired Technology, Imperial College, London, UK
  • Author Name: Timothy G. Constandinou
    Affiliation: Centre for Bio-Inspired Technology, Imperial College, London, UK
    Author URL: https://ieeexplore.ieee.org/author/37269841000
    ID: 37269841000
    Order: 4
    Author Affiliations:
    • Centre for Bio-Inspired Technology, Imperial College, London, UK

Image Sensor

• sensor_type: CMOS
• resolution: 320x320
• dynamic_range: 57.67 dB
• pixel_size: 6 µm x 6 µm
• 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: 2.217 fps
• signal_to_noise_ratio: 57.67 dB
• power_consumption: 1.06 mW

Applications & Benefits

• cell_imaging: Wireless Capsule Endoscopy (WCE) for diagnosing pathologies of the gastrointestinal tract.
• benefits: Low power requirements and integrated nature suitable for medical applications.

Supporting Organizations

• supported_by: Imperial College London and University of Southampton

Manuscript Details

• publication_date: 1-5 June 2014

Relevancy Score

• score: 10
• missing_fields:
  • quantum_efficiency
  • readout_speed
  • noise_sources
  • analog_to_digital_conversion_techniques
  • microlenses
  • on_chip_colour_filters
  • global_or_rolling_shutters
  • backside_illumination

Processed JSON Filename

request_3e2da975-7966-43d9-bff4-aceeb16987c3-octagonal_cmos_image_sensor_with_strobed_rgb_led_illumination_for_wireless_capsule_endoscopy.json