Estimation of Curvature in 3D Images Using Tensor Field Filtering. - Håkan Bårman; Gösta H. Granlund; Hans Knutsson (ECCV, 1990)

Hierarchical curvature estimation in computer vision. - Håkan Bårman (1991)

A framework for anisotropic adaptive filtering and analysis of image sequences and volumes. - Hans Knutsson; Leif Haglund; Håkan Bårman; Gösta H. Granlund (ICASSP, 1992)