RADAR FOTOGRAMÉTRICO: CÁLCULO DA VELOCIDADE DE UM OBJETO A PARTIR DE UMA SEQÜÊNCIA DE IMAGENS DIGITAIS

Abstract

The aim of this paper is the determination of the velocity of an object in movement, from a sequence of images, obtained by a digital video camera Sony DRS-200A. The velocity calculation is accomplished in two stages. In the first, techniques of Digital Processing of Images are applied, to determine automatically the photo-coordinates of the vehicle in the times t1 and t2 (known). In the second stage, the modified collinearity equations are applied the vector velocity is added, in order to calculate the coordinates (the object space) and the constant velocity of the vehicle. The experiments were carried out by using images obtained from a scene (scale model) that simulated a vehicle in movement. This methodology was applied in the images for the determination of the velocity, whose results show the potential of the technique in metric applications that use video camera