In this paper, we present results of a comparative study on disparity analysis of convergent stereo systems. If the epipolar geometry is known, disparity analysis can be performed by computing the disparity along the epipolar line in the original views. Using a parallel stereo algorithm, the convergent views have to be rectified in order to have horizontal and parallel epipolar lines. In this study, both approaches are investigated with respect to the computational effort and the quality of the disparity analysis results.