Sciweavers

405 search results - page 27 / 81
» Shape Transformation Using Variational Implicit Functions
Sort
View
JMIV
2007
156views more  JMIV 2007»
13 years 7 months ago
Using the Shape Gradient for Active Contour Segmentation: from the Continuous to the Discrete Formulation
A variational approach to image or video segmentation consists in defining an energy depending on local or global image characteristics, the minimum of which being reached for ob...
Eric Debreuve, Muriel Gastaud, Michel Barlaud, Gil...
ISCAS
2007
IEEE
181views Hardware» more  ISCAS 2007»
14 years 1 months ago
Image Compression using 2D Dual-tree Discrete Wavelet Transform (DDWT)
—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...
Jing-Yu Yang, Wenli Xu, Qionghai Dai, Yao Wang
AAAI
1990
13 years 8 months ago
Generalized Shape Autocorrelation
This paper presents an efficient and homogeneous paradigm for automatic acquisition and recognition of nonparametric shapes. Acquisition time varies from linear to cubic in the nu...
Andrea Califano, Rakesh Mohan
TIP
2011
162views more  TIP 2011»
13 years 2 months ago
Kernel Maximum Autocorrelation Factor and Minimum Noise Fraction Transformations
—This paper introduces kernel versions of maximum autocorrelation factor (MAF) analysis and minimum noise fraction (MNF) analysis. The kernel versions are based upon a dual formu...
Allan Aasbjerg Nielsen
VRML
2006
ACM
14 years 1 months ago
Function-based shape modeling and visualization in X3D
In this paper, a function-based extension of Extensible 3D (X3D) is proposed. The extension allows authors to use analytical functions to define geometry, color, 3D texture as wel...
Qi Liu, Alexei Sourin