The invention is directed at the definition of the dynamic movement
parameters of a material object during sports competitions or training
and makes it possible to improve a judgment objectivity during said
sports competitions. A footmark trajectory resulting from the interaction
of am object with surrounding objects or environment is recorded in an
infrared spectral range. The dynamic of modifications of infrared
footmarks in different spectral ranges are recorded. The trajectories of
shadows formed by external infrared sources are recorded. The inventive
device system comprises an infrared camera, a computer and a mechanical
oscillation receiver. Said infrared camera can be provided with a system
of optical filters for modifying the spectral range of the sensitivity
thereof.