Characteristics of Human Speed Sensation for Flying-Ball Pictures

This paper describes characteristics of human speed sensation for flying-ball pictures. Flying-ball is arranged with a certain density, and its velocity is constant. First, we arranged flying-ball regularly and measured a relationship between density, velocity, and sensation of speed. As a result, we clarified that sensation of speed relates to the number offlying-balls which pass through on display. Next, we also measured characteristics of a speed sensation when arranged flying-ball irregularly. The result is the same as the regular case.