Biomedical Engineering Reference
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Figure 3.13 Gait assessment of a cerebral palsy patient in a clinical gait laboratory.
Infrared cameras on the ceiling and walls capture the reflected light from the spherical
reflective markers mounted on both sides of the body. (Courtesy of the Gait Analysis
Laboratory, Connecticut Children's Medical Center, Hartford, CT.)
3.3.4.2 Historical Development of Television Digitizing Systems. Almost
all of the movement analysis television systems were developed in university
research laboratories. In the late 1960s, the first reports of television-based
systems started to appear: at Delft University of Technology in The Nether-
lands (Furnee, 1967, according to Woltring, 1987) and at the Twenty-First
Conference EMB in Houston, Texas (Winter et al., 1968). The first published
paper on an operational system was by Dinn et al. (1970) from the Technical
University of Nova Scotia in Halifax, Nova Scotia, Canada. It was called
CINTEL (Computer INterface for TELivision) and was developed for digi-
tizing angiographic images at 4 bits (16 grey levels) to determine the time
course of left ventricular volume (Trenholm et al., 1972). It was also used for
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