1. The structure of images;Koenderink;Biol. Cybern.,1984
2. Receptive field families;Koenderink;Biol. Cybern.,1990
3. Scale and the differential structure of images;Florack;Image & Vision Comput.,1992
4. Scale-space: its Natural Operators and Differential Invariants;ter Haar Romeny,1991
5. Supervised pixel classification using a feature space derived from an artificial visual system;Baxter;Technical report, University of North Carolina, Department of Computer Science,1991