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PG
1999
IEEE
13 years 11 months ago
Local Injectivity Conditions of 2D and 3D Uniform Cubic B-Spline Functions
Uniform cubic B-spline functions have been used for mapping functions in various areas such as image warping and morphing, 3D deformation, and volume morphing. The injectivity (on...
Yongchoel Choi, Seungyong Lee
ICRA
2007
IEEE
149views Robotics» more  ICRA 2007»
14 years 1 months ago
Stabilization of Multiple Robots on Stable Orbits via Local Sensing
— We develop decentralized controllers for a team of disk-shaped robots to converge to and circulate along the boundary of a desired two-dimensional geometric pattern specified ...
Mong-ying A. Hsieh, Savvas G. Loizou, Vijay Kumar
WISA
2007
Springer
14 years 1 months ago
Geometrically Invariant Image Watermarking in the DWT Domain
Watermark resistance to both geometric attacks and lossy compressions is a fundamental issue in the image watermarking community. In this paper, we propose a DWT (Discrete Wavelet ...
Shijun Xiang, Hyoung-Joong Kim
PODS
2008
ACM
128views Database» more  PODS 2008»
14 years 7 months ago
Shape sensitive geometric monitoring
A fundamental problem in distributed computation is the distributed evaluation of functions. The goal is to determine the value of a function over a set of distributed inputs, in ...
Izchak Sharfman, Assaf Schuster, Daniel Keren
EJC
2006
13 years 7 months ago
Homomorphism bounded classes of graphs
A class C of graphs is said to be H-bounded if each graph in the class C admits a homomorphism to H. We give a general necessary and sufficient condition for the existence of boun...
Timothy Marshall, Reza Nasraser, Jaroslav Nesetril