A Lowpower Visualhorizon Estimation Chip

• doi: 10.1109/TCSI.2008.2010097
• title: A Low-Power Visual-Horizon Estimation Chip
• publisher: IEEE
• isbn:
• issn: 1558-0806
• rank: 814
• access_type: LOCKED
• content_type: Journals
• abstract: Recent successes in the construction of micro aerial vehicles (< 15 cm) have highlighted the lack of real-time sensors for flight control. This paper describes a low-power real-time visual-horizon sensor for stabilizing the pitch and roll of miniature aircraft in moderate-to-high-altitude flight. This prototype sensor uses a 12 times 12 photoreceptor array to find a best-fit horizon line based on image intensity. The sensor includes a "confidence-level" output for signaling poor sensing conditions and can scan out the image. The chip was fabricated in a commercially available 0.5- mum CMOS process and operates on less than 2.5 mW with a 5-V power supply.
• article_number: 4694019
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4694019
• html_url: https://ieeexplore.ieee.org/document/4694019/
• abstract_url: https://ieeexplore.ieee.org/document/4694019/
• publication_title: IEEE Transactions on Circuits and Systems I: Regular Papers
• conference_location:
• conference_dates:
• publication_number: 8919
• is_number: 5200688
• publication_year: 2009
• publication_date: Aug. 2009
• start_page: 1566
• end_page: 1575
• citing_paper_count: 5
• citing_patent_count: 1
• download_count: 302
• insert_date: 20081202
• index_terms:
  • ieee_terms:
    • Sensor arrays
    • Image sensors
    • Vehicles
    • Aerospace control
    • Sensor phenomena and characterization
    • Aircraft manufacture
    • Prototypes
    • Photoreceptors
    • CMOS process
    • Power supplies
  • author_terms:
    • Analog VLSI
    • autonomous flight control
    • micro aerial vehicles
    • perceptron
    • smart sensor
  • dynamic_index_terms:
    • Image Intensity
    • Aerial Vehicles
    • Real-time Sensor
    • Micro Air Vehicles
    • Micro Aerial Vehicles
    • Learning Rate
    • Straight Line
    • Error Function
    • Vector Of Length
    • Photocurrent
    • Dot Product
    • Threshold Voltage
    • Image Distortion
    • Lens Distortion
    • Radial Distortion
    • Image Deformation
    • Local Intensity
    • Local Volume
    • Class Assignment
    • Class Name
    • Classical Design
    • Center Of Origin
    • Center Of Diversity
    • Vector Magnitude
    • Roll Angle
    • Yaw Rotation
    • Class Averages
    • Pixel Vector
    • Vector For Each Pixel
    • Small Vectors
    • External Capacitor
    • Differential Pair
    • Error Constraint
    • Amplitude Vector
• authors:
  • Author Name: Timothy K. Horiuchi
    Affiliation: Department of Electrical and Computer Engineering and the Institute of Systems Research, Clark School of Engineering, University of Maryland, College Park, MD, USA
    Author URL: https://ieeexplore.ieee.org/author/37271287600
    ID: 37271287600
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering and the Institute of Systems Research, Clark School of Engineering, University of Maryland, College Park, MD, USA

Image Sensor

• sensor_type: CMOS
• resolution: 12x12 pixels
• dynamic_range: not specified
• pixel_size: approximately 406 µm
• dark_current: not specified

Optical Data

• focal_length: not specified
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

• power_consumption: less than 2.5 mW with a 5-V power supply

Applications & Benefits

• cell_imaging: not specified
• benefits: Provides low-power real-time visual-horizon estimation for micro aerial vehicles

Supporting Organizations

• supported_by: Air Force Office of Scientific Research, National Science Foundation

Manuscript Details

• publication_date: Aug. 2009

Relevancy Score

• score: 8
• missing_fields:
  • fill factor
  • quantum efficiency
  • readout speed
  • temporal noise
  • fixed-pattern noise
  • analog-to-digital conversion techniques
  • microlenses
  • on-chip colour filters
  • global or rolling shutters
  • backside illumination

Processed JSON Filename

request_d1879f15-e176-45ad-8823-8fd80caf680b-a_lowpower_visualhorizon_estimation_chip.json