Abstract des Autors

Specifics of an athlete's 3D perception of a ski course are of interest in both practical and theoretical points-of-view. The rapid progress of virtual environment technology and, in particular, computer vision makes it interesting to use these technologies for solving such issues. We continue the research of the sportsman's perception of a ski course using different types of VE and tracking systems. Vision and visual perception issues are given more attention in the works of neurophysiologists: Nobel Laureates David H. Hubel and Torsten N. Wiesel are examples of this concentration. Williams et al., (1999) authored one of the first books to overview visual perception and action in sports. The connection of visual perception and suitable response actions of a sportsman has been actively studied in sports psychology, biomechanics, and kinesiology. An abundance of works cover this topic for different kinds of sports (e.g. tennis, ping-pong, and cricket. The paper is devoted to the use of VE system in the sport skiing. We used a visual force back coupling training complex, as described by Aleshin et al., (2009) and also a ProSki mechanical training simulator. The following virtual environment systems are used: a passive 3D stereo vision system based on binocular parallax, a system with active stereo and head mounted displays (HMD). In all experiments, we used OPTITRACK cameras, markers, and motive software as the head-skis tracking system.