Derivation of the optical flow variant : An ecological approach to a description of the environment

Abstract

The "OPTICAL FLOW" specifies much information about motion of the observation point. The flow, based on the ambient light surrounding us, can indicate the index of movement. The "OCCLUSION" defines effects of movement upon the flow as well as information about the layout of surfaces. This research focuses on the optical flow and the occlusion to estimate spreading space. It also presents the method used to apply these optical features as an index in spreading space. I will illustrate how the optical information changes in relation to the distance the observer is to the aperture. By analyzing the changes in the optical flow (the expansion of the optical flow field and the increase or decrease of an apparent structure) the spatial information can be estimated. The critical value of motion spatial sequence, the width to measured focus ratio (W/f ), remains constant no matter where the observer stands. Also, the variables in the environment from sequential image processing will be discussed. The optical flow variant was found by analyzing the difference in accumulative image from motion sequence.