ISSN:
1741-0444
Keywords:
3-D motion analysis
;
Film drive unit
;
L.E.D. markers
;
Still camera
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
Abstract This paper presents a novel data acquisition svstem for motion analysis in two or three dimensions. Emphasis is placed on a relatively simple method of data collecting requiring minimal equipment. The system consists of an ordinary 35 mm camera (one camera for two dimensions or two cameras for analysis in three dimensions), infrared light emitting diodes (l.e.d) used as markers, and an electronic control circuit. The camera records successive positions of pulsed infrared l.e.d.s. which are attached over anatomical landmarks, to produce sequences of dots on the film. The resulting trajectories of the flashing diodes are digitised to generate numerical values which serve as input data to the computer carrying out the actual motion analysis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02442546
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