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 example moment or spherical ... Another class of shape descriptors (called intrinsic shape descriptors) is invariant with respect to isometry ...
Famous quotes containing the word shape:
“Different persons growing up in the same language are like different bushes trimmed and trained to take the shape of identical elephants. The anatomical details of twigs and branches will fulfill the elephantine form differently from bush to bush, but the overall outward results are alike.”
—Willard Van Orman Quine (b. 1908)