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Applications of digital image acquisition in anthropometryA description is given of a video kinesimeter, a device for the automatic real-time collection of kinematic and dynamic data. Based on the detection of a single bright spot by three TV cameras, the system provides automatic real-time recording of three-dimensional position and force data. It comprises three cameras, two incandescent lights, a voltage comparator circuit, a central control unit, and a mass storage device. The control unit determines the signal threshold for each camera before testing, sequences the lights, synchronizes and analyzes the scan voltages from the three cameras, digitizes force from a dynamometer, and codes the data for transmission to a floppy disk for recording. Two of the three cameras face each other along the 'X' axis; the third camera, which faces the center of the line between the first two, defines the 'Y' axis. An image from the 'Y' camera and either 'X' camera is necessary for determining the three-dimensional coordinates of the point.
Document ID
19830032231
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Woolford, B.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Lewis, J. L.
(NASA Johnson Space Center Spacecraft Design Div., Houston, TX, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Man/System Technology And Life Support
Meeting Information
Meeting: 3-D machine perception
Location: Washington, DC
Start Date: April 23, 1981
End Date: April 24, 1981
Accession Number
83A13449
Distribution Limits
Public
Copyright
Other

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