Led Location Beacon System Based On Processing Of Digital Images

• doi: 10.1109/6979.954547
• title: LED location beacon system based on processing of digital images
• publisher: IEEE
• isbn:
• issn: 1558-0016
• rank: 2852
• access_type: LOCKED
• content_type: Journals
• abstract: This paper is in the field of vehicle positioning technology for the intelligent transportation systems. The ideas of an innovative light-emitting diode (LED)-based location beacon system are developed and verified. The system developed is a combination of several latest technologies which include a CMOS vision sensor, high brightness LED, and digital image processing techniques. It belongs to a new kind of simplex communication link. A digital camera is used to capture images contained in the LED beacon signal. The captured digital images are processed by the algorithms developed and a location code is extracted. The location code can be used for calibration of a vehicle positioning system which may consist of a GPS, inertial navigation system (INS) and other sensors. The issues examined include the structure of the transmitter and the receiver, the signaling method, the transmission protocol of the LED panel, the relationship between the camera capturing rate and the LED pattern update rate, the digital camera exposure technology, and the efficiency of the image processing algorithms. Experiments using a prototype transmitter and a receiver were performed. The experimental results provide a good demonstration of the viability of the ideas and methodologies developed.
• article_number: 954547
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=954547
• html_url: https://ieeexplore.ieee.org/document/954547/
• abstract_url: https://ieeexplore.ieee.org/document/954547/
• publication_title: IEEE Transactions on Intelligent Transportation Systems
• conference_location:
• conference_dates:
• publication_number: 6979
• is_number: 20641
• publication_year: 2001
• publication_date: Sept. 2001
• start_page: 135
• end_page: 150
• citing_paper_count: 36
• citing_patent_count: 22
• download_count: 1365
• insert_date: 20020807
• index_terms:
  • ieee_terms:
    • Light emitting diodes
    • Digital images
    • Digital cameras
    • Vehicles
    • CMOS technology
    • Intelligent transportation systems
    • Intelligent sensors
    • CMOS image sensors
    • Sensor systems
    • Transmitters
  • dynamic_index_terms:
    • Image Processing
    • Digital Images
    • Beacon System
    • Digital Camera
    • Light-emitting Diodes
    • LED Light
    • Light Emission
    • LEDs
    • Communication Protocol
    • Network Protocol
    • Transmission Protocol
    • Vehicle Position
    • Vehicle Location
    • Intelligent Transportation Systems
    • Image Processing Algorithms
    • Inertial Navigation
    • Inertial Navigation System
    • Wireless
    • Wireless Communication
    • Denoising
    • Noise Reduction
    • Frame Rate
    • Light Signal
    • Traffic Signal
    • Human Eye
    • Differencing
    • Differentiability
    • Image Frames
    • Bit Error Rate
    • Bit Error Ratio
    • Median Filter
    • Traffic Light
    • Transition Patterns
    • Memory Unit
    • Images In Row
    • Feature Extraction Process
    • Digital CMOS Camera
    • Camera Movement
    • Traffic Control
    • Incandescent Bulbs
    • Incandescent Light Bulbs
    • Incandescent Lamps
    • Tungsten Light
    • Fast Switching
    • Thyristor
    • Camera Module
• authors:
  • Author Name: G.K.H. Pang
    Affiliation: Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China
    Author URL: https://ieeexplore.ieee.org/author/37324964100
    ID: 37324964100
    Order: 1
    Author Affiliations:
    • Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China
    • Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ONT, Canada
  • Author Name: H.H.S. Liu
    Affiliation: University of Hong Kong, Hong Kong, China
    Author URL: https://ieeexplore.ieee.org/author/38184186100
    ID: 38184186100
    Order: 2
    Author Affiliations:
    • University of Hong Kong, Hong Kong, China

Image Sensor

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

Optical Data

• focal_length: 7.4 mm
• aperture: not specified
• field_of_view: 29.6°
• distortion: not specified

Performance Metrics

• frame_rate: 250 fps (theoretical)

Applications & Benefits

• cell_imaging: Used for vehicle positioning and navigation in intelligent transportation systems.
• benefits: Provides wide-field view with CMOS technology and enables high-speed and efficient data capture.

Supporting Organizations

• supported_by: University of Hong Kong, University of Waterloo, industry partners.

Manuscript Details

• publication_date: Sept. 2001

Relevancy Score

• score: 9
• missing_fields:
  • fill factor
  • 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

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