39 search results - page 2 / 8 » Compressing 2-D Shapes Using Concavity Trees |
ISCAS
2007
IEEE
13 years 11 months ago
2007
IEEE
—In this paper, we investigate image compression using 2D Dual-tree Discrete Wavelet Transform (DDWT), which is an overcomplete transform with direction-selective basis functions...
CVPR
2006
IEEE
13 years 9 months ago
2006
IEEE
We propose efficiency of representation as a criterion for evaluating shape models, then apply this criterion to compare the boundary curve representation with the medial axis. We...
ICIP
2007
IEEE
14 years 7 months ago
2007
IEEE
We propose an image coding scheme using 2-D anisotropic dual-tree discrete wavelet transform (DDWT). First, we extend 2-D DDWT to anisotropic decomposition, and obtain more direct...
ICPR
2000
IEEE
14 years 6 months ago
2000
IEEE
Amethod for quick determination of the position and pose of a 3D free-form object with respect to its 2D projective image(s) is proposed. It is a precondition of the method that a...
SMI
2008
IEEE
13 years 12 months ago
2008
IEEE
We describe in this paper a method for 3D shape indexing and retrieval that we apply on three data collections of the SHREC SHape Retrieval Contest 2008: Stability on watertight, ...