Extraction of Routes of Walkers Utilizing Conditions of Walking.
Yasuo Miyake, Kiyoshi Tsutsumi, Hiroshi Hirai, Yoshiharu Yuba · The Journal of The Institute of Image Information and Television Engineers · 1995
A method of extracting routes of walkers based on investigation of speed and direction change over a short period is proposed.Images in time series are taken alternately with two values of intervals.The position of a walker after a longer interval is determined by using a vector of movement obtained from images over a shorter interval.Good accuracy is compatible with short computation time.By using a trapezoidal mask, a portion of one person is extracted from a figure in which some walkers are connected.This mask is determined from the parallax of two cameras.Our method does not require identification of a person and is expected to decrease computation time.Routes of walkers were almost always extracted in our experiment.1.