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ISMAR
2008
IEEE
15 years 8 months ago
Relative pose calibration of a spherical camera and an IMU
This paper is concerned with the problem of estimating the relative translation and orientation of an inertial measurement unit and a spherical camera, which are rigidly connected...
Jeroen D. Hol, Thomas B. Schön, Fredrik Gusta...
SECON
2010
IEEE
15 years 6 days ago
Two-Tiered Constrained Relay Node Placement in Wireless Sensor Networks: Efficient Approximations
In a wireless sensor network, short range multihop transmissions are preferred to prolong the network lifetime due to super-linear nature of energy consumption with communication d...
Dejun Yang, Satyajayant Misra, Xi Fang, Guoliang X...
DEXA
2009
Springer
153views Database» more  DEXA 2009»
15 years 6 months ago
Three Approximation Algorithms for Energy-Efficient Query Dissemination in Sensor Database System
Abstract. Sensor database is a type of database management system which offers sensor data and stored data in its data model and query languages. In this system, when a user poses ...
Zhao Zhang, Xiaofeng Gao, Xuefei Zhang, Weili Wu, ...
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FSTTCS
2008
Springer
15 years 3 months ago
Pruning 2-Connected Graphs
Given an edge-weighted undirected graph G with a specified set of terminals, let the density of any subgraph be the ratio of its weight/cost to the number of terminals it contain...
Chandra Chekuri, Nitish Korula
SODA
1992
ACM
252views Algorithms» more  SODA 1992»
15 years 3 months ago
A General Approximation Technique for Constrained Forest Problems
We present a general approximation technique for a large class of graph problems. Our technique mostly applies to problems of covering, at minimum cost, the vertices of a graph wit...
Michel X. Goemans, David P. Williamson