Pixellevel Color Image Sensor With Efficient Ambient Light Suppression Using Modulated Rgb Flashlight And Application To Tof Range Finding

• doi: 10.1109/VLSIC.2004.1346595
• title: Pixel-level color image sensor with efficient ambient light suppression using modulated RGB flashlight and application to TOF range finding
• publisher: IEEE
• isbn: 0-7803-8287-0
• issn:
• partnum: 04CH37525
• rank: 3276
• access_type: LOCKED
• content_type: Conferences
• abstract: We present a pixel-level color image sensor with efficient ambient light suppression using a modulated RGB flashlight to support a recognition system. Bidirectional photo integrators realize in-pixel demodulation of a projected flashlight with suppressing an ambient light at short intervals during exposure time to avoid saturation from ambient illumination. Every pixel has a capability of depth and color capture. A prototype chip has been designed using 0.35 /spl mu/m CMOS process and successfully tested.
• article_number: 1346595
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1346595
• html_url: https://ieeexplore.ieee.org/document/1346595/
• abstract_url: https://ieeexplore.ieee.org/document/1346595/
• publication_title: 2004 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.04CH37525)
• conference_location: Honolulu, HI, USA
• conference_dates: 17-19 June 2004
• publication_number: 9331
• is_number: 29642
• publication_year: 2004
• publication_date: 17-19 June 2004
• start_page: 298
• end_page: 301
• citing_paper_count: 1
• citing_patent_count: 3
• download_count: 260
• insert_date: 20041025
• index_terms:
  • ieee_terms:
    • Pixel
    • Color
    • Image sensors
    • Optical modulation
    • Sensor systems
    • Image recognition
    • Demodulation
    • Lighting
    • Prototypes
    • CMOS process
  • dynamic_index_terms:
    • Color Images
    • Inhibition Efficiency
    • Efficient Suppression
    • Image Sensor
    • Camera Sensor
    • Ambient Light
    • Flashlight
    • Color Image Sensor
    • Exposure Time
    • Recognition System
    • CMOS Process
    • Signal-to-noise
    • Signal-to-noise Ratio
    • Photoperiod
    • Exposure Period
    • Light Intensity
    • Dynamic Range
    • Pulse Width
    • Pulsewidth Modulation
    • Photodetector
    • Saturation Level
    • Photocurrent
    • Pseudocolor
    • False Color
    • Target Object
    • Color Information
    • Ambient Light Intensity
    • Target Scene
    • Constant Light
    • Non-ideal Conditions
• isbn_formats:
  • format: Print ISBN, value: 0-7803-8287-0, isbnType: Historical
• authors:
  • Author Name: Y. Oike
    Affiliation: Department of Electronic Engineering, University of Tokyo, Bunkyo, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37267320700
    ID: 37267320700
    Order: 1
    Author Affiliations:
    • Department of Electronic Engineering, University of Tokyo, Bunkyo, Tokyo, Japan
  • Author Name: M. Ikeda
    Affiliation: VLSI Design and Educetion Center (VDEC), University of Tokyo, Bunkyo, Tokyo, Japan
    Author URL: https://ieeexplore.ieee.org/author/37273902900
    ID: 37273902900
    Order: 2
    Author Affiliations:
    • VLSI Design and Educetion Center (VDEC), University of Tokyo, Bunkyo, Tokyo, Japan
  • Author Name: K. Asada
    Affiliation:
    Author URL: https://ieeexplore.ieee.org/author/37273906700
    ID: 37273906700
    Order: 3
    

Image Sensor

• sensor_type: CMOS
• resolution: 64 x 64 pixels
• dynamic_range: Not explicitly stated, but higher dynamic range compared to conventional methods
• pixel_size: 33.0µm
• dark_current: Not explicitly mentioned

Optical Data

• focal_length: Not mentioned
• aperture: Not mentioned
• field_of_view: Not mentioned
• distortion: Not mentioned

Performance Metrics

• frame_rate: Not mentioned
• signal_to_noise_ratio: 43.5 dB
• shutter_speed: Not mentioned
• power_consumption: 474 mW
• noise: 3.4 mVrms

Applications & Benefits

• cell_imaging: Not mentioned
• benefits: Efficient ambient light suppression, capability for depth and color capture, high linearity, avoidance of saturation from ambient light

Supporting Organizations

• supported_by: University of Tokyo, VLSI Design and Education Center (VDEC), Rohm Corp., Toppan Printing Corp.

Manuscript Details

• publication_date: 17-19 June 2004

Relevancy Score

• score: 9
• missing_fields:
  • quantum_efficiency
  • readout_speed
  • noise_sources
  • analog_to_digital_conversion
  • microlenses
  • color_filters
  • shutter_type
  • backside_illumination

Processed JSON Filename

request_2752e7af-25a3-4be6-a68d-9097285b26c9-pixellevel_color_image_sensor_with_efficient_ambient_light_suppression_using_modulated_rgb_flashlight_and_application_to_tof_range_finding.json