On the Duality of Scalar and Density Flows. - Mads Nielsen; Wiro J. Niessen; Robert Maas; Luc Florack; Bart M. ter Haar Romeny (Scale-Space, 1997)

Optic Flow and Stereo. - Wiro J. Niessen; Robert Maas (Gaussian Scale-Space Theory, 1997)

Area-Based Computation of Stereo Disparity with Model-Based Window Size Selection. - Robert Maas; Bart M. ter Haar Romeny; Max A. Viergever (CVPR, 1999)

A Multiscale Taylor Series Approach to Optic Flow and Stereo: A Generalization of Optic Flow under the Aperture. - Robert Maas; Bart M. ter Haar Romeny; Max A. Viergever (Scale-Space, 1999)

Pseudo-Linear Scale-Space Theory. - Luc Florack; Robert Maas; Wiro J. Niessen (Int. J. Comput. Vis., 1999)

Binocular Stereo from Grey-Scale Images. - Mads Nielsen; Robert Maas; Wiro J. Niessen; Luc Florack; Bart M. ter Haar Romeny (J. Math. Imaging Vis., 1999)