Innovation in video-digital coordinate-measurement for movement analysis

des Instituts für Geodäsie

Heft 23/1987

Innovation in
video-digital coordinate-measurement
for movement analysis:

Real-time, high-resolution estimation
with high-speed stroboscopic TV-cameras

Egbert Hans FURNÉE, Delft

In: DORRER, Egon / PEIPE, Jürgen (Hrsg.) [1987]:
Symposium 11./12. März 1986

Schriftenreihe Studiengang Vermessungswesen, Universität der Bundeswehr München, Heft 23, Neubiberg, S. 127-130.

In human or animal kinesiology, in movement analysis as a subsystem in biomechanical research, or even with performance checking in robotics, high-speed filming with subsequent manual digitizing for computer analysis has in some respects remained a method of choice. Certain requirements must clearly be met by automatic opto-electronic position measuring systems before their adoption to offset the more obvious disadvantages of film analysis. To wit: the costly, time-consuming and not necessarily unbiased procedures of picture-by-picture digitizing of film or video recordings by the human observer, which tend to limit the amount of data analyzed (detracting from the statistical significance of the analysis) and which preclude a rapid turnover of results often desired for feedback in a clinical, rehabilitation or sports coaching environment.

Early prototypes or real-time video-digital coordinate-conversion systems (this author 1967, 1970, 1974), subsequent publications and a commercial product from other sources (referenced below) and various clinical and field applications by this and other authors have shown the potential of tv-based automatic movement data acquisition of non-wired contrasting markers attached to the body.

Recent developments, reviewed below, would seem to herald a maturing of these techniques as a viable tool in biomechanical research methodology.


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