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ICMCS
2005
IEEE
109views Multimedia» more  ICMCS 2005»
13 years 11 months ago
Spatial Error Concealment Based on Bezier Curves
This paper presents a geometric error concealment scheme for DCT-based image/video data based on the Bezier polynomials (BP). The proposed scheme makes use of the average edge dir...
Rogelio Hasimoto-Beltran, Ashfaq A. Khokhar
ADCM
2010
129views more  ADCM 2010»
13 years 5 months ago
Construction of positive definite cubature formulae and approximation of functions via Voronoi tessellations
Let Rd be a compact convex set of positive measure. In a recent paper, we established a definiteness theory for cubature formulae of order two on . Here we study extremal propert...
Allal Guessab, Gerhard Schmeisser
ICIP
2004
IEEE
14 years 6 months ago
Shape estimation of 3-D DNA molecules from stereo cryo-electron micro-graphs
We introduce a 3-D parametric active contour algorithm for the shape estimation of DNA molecules from stereo cryo-electron micrographs. We consider a 3-D filament (consisting of a...
Mathews Jacob, Thierry Blu, Michael Unser
CAGD
2005
93views more  CAGD 2005»
13 years 5 months ago
Simple local interpolation of surfaces using normal vectors
A simple algorithm for surface interpolation is proposed. Its central idea is quadratic interpolation of a curved segment from the position and normal vectors at the end points, w...
Takashi Nagata
SGP
2007
13 years 7 months ago
Focal surfaces of discrete geometry
The differential geometry of smooth three-dimensional surfaces can be interpreted from one of two perspectives: in terms of oriented frames located on the surface, or in terms of ...
Jingyi Yu, Xiaotian Yin, Xianfeng Gu, Leonard McMi...