Shapeform
Shapeform is a term used in geometry and related fields to describe a compact descriptor that captures the essential form of a geometric object in a way that is invariant under certain transformations, such as translation, rotation, and scaling. In this sense, a shapeform acts as a concise fingerprint of a shape, emphasizing the overall silhouette and structural properties rather than exact size or position.
Although the exact definition of shapeform varies by author, it commonly consists of a vector of features
Computing a shapeform typically involves normalizing the shape to remove position, orientation, and size effects, then
Shapeforms are used in object recognition, image retrieval, computer-aided design, font analysis, and pattern matching. They
Because the term is not standardized, different sources may define shapeform differently or use alternative terminology.