Biomechanical constraints and the recognition of human body movement(Summary of Awarded Presentations at the 24th Annual Meeting)

抄録

We investigated the effects of the biomechanical constraints of the human body on the visual recognition of body movements and view dependency. First, we made pictures of twenty-seven different body movements with three-dimensional computer modeling software. All of these movements were biomechanically possible. Twenty-seven impossible movements were then made by modifying the possible ones. A pair of these movements from a variety of viewing angles (0-180 deg) were displayed sequentially, and the subjects were asked if the movements were identical, or different, regardless of any difference in viewing angle. We observed that the recognition of the possible movements was better and more view independent, than for the impossible movements. The recognition of human body movements therefore, was affected by the biomechanical relationship of the body parts and movements.