A method to edit movies for a visual simulator and the of the torsional motion of high-rise buildings on human perception

A study of the way in which humans visually perceive the motion of high-rise buildings was carried out. In our experiment, an edited movie was projected so that the subjects could observe the motion of the view from a window. The movie was edited by changing the speed of pictures that had been previously recorded by a video camera moving at a constant low velocity. In this way, a visual simulator created a movie replicating a cosine wave. The results of this experiment showed that visual perception is more sensitive than physical perception in the case of torsional motion. The threshold at which the subjects perceived the motion was determined as well.