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ICDCS
2003
IEEE
15 years 11 months ago
Collision Avoidance in Single-Channel Ad Hoc Networks Using Directional Antennas
Three collision-avoidance protocols are analyzed that use omni-directional packet reception together with omnidirectional transmissions, directional transmissions, or a combinatio...
Yu Wang, J. J. Garcia-Luna-Aceves
PG
2002
IEEE
15 years 11 months ago
Estimation of Multiple Directional Light Sources for Synthesis of Mixed Reality Images
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. W...
Yang Wang, Dimitris Samaras
SIGGRAPH
1987
ACM
15 years 10 months ago
Direct least-squares fitting of algebraic surfaces
In the course of developing a system for fitting smooth curves to camera input we have developed several direct (i.e. noniterative) methods for fitting a shape (line, circle, conic...
Vaughan R. Pratt
CAD
2007
Springer
15 years 6 months ago
Direct extraction of surface meshes from implicitly represented heterogeneous volumes
This paper describes a novel algorithm to extract surface meshes directly from implicitly represented heterogeneous models made of different constituent materials. Our approach ca...
Charlie C. L. Wang
DAM
2011
15 years 1 months ago
Weak sense of direction labelings and graph embeddings
An edge-labeling λ for a directed graph G has a weak sense of direction (WSD) if there is a function f that satisfies the condition that for any node u and for any two label seq...
Christine T. Cheng, Ichiro Suzuki