@conference {jaehne1994, title = {Analytical studies of low-level motion estimators in space-time images using a unified filter concept}, booktitle = {Proc. Conference on Computer Vision and Pattern Recognition (CVPR {\textquoteright}94), Seattle, 20.-23. June 1994}, year = {1994}, pages = {229--236}, doi = {10.1109/CVPR.1994.323834}, author = {Bernd J{\"a}hne} }