A Compact Shape Descriptor for Triangular Surface Meshes.

ABSTRACT: Three-dimensional shape-based descriptors have been widely used in object recognition and database retrieval. In the current work, we present a novel method called compact Shape-DNA (cShape-DNA) to describe the shape of a triangular surface mesh. While the original Shape-DNA technique provides an effective and isometric-invariant descriptor for surface shapes, the number of eigenvalues used is typically large. To further reduce the space and time consumptions, especially for large-scale database applications, it is of great interest to find a more compact way to describe an arbitrary surface shape. In the present approach, the standard Shape-DNA is first computed from the given mesh and then processed by surface area-based normalization and line subtraction. The proposed cShape-DNA descrip

SUBMITTER: Gao Z 

PROVIDER: S-EPMC4041874 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature