Some articles on shape descriptors, shape, descriptors, shapes, descriptor:
... Shape descriptors can be classified by their invariance with respect to the transformations allowed in the associated shape definition ... Many descriptors are invariant with respect to congruency, meaning that congruent shapes (shapes that could be translated, rotated and mirrored) will have the same descriptor (for ... Another class of shape descriptors (called intrinsic shape descriptors) is invariant with respect to isometry ...
Famous quotes containing the word shape:
“I know that each stage is not going to last forever. I used to think that when he was little. Whenever he was in a bad stage I thought that he was going to be like that for the rest of his life and that Id better do something to shape him up. When he was in a good state, I thought he was going to be a perfect child and I would never have to worry; he was always going to stay that way.”
—Anonymous Parent of An Eight-Year-Old. As quoted in Between Generations by Ellen Galinsky, ch. 4 (1981)