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» Positioning using local maps
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TVCG
2010
161views more  TVCG 2010»
13 years 7 months ago
Globally Optimized Linear Windowed Tone Mapping
—This paper introduces a new tone mapping operator that performs local linear adjustments on small overlapping windows over the entire input image. While each window applies a lo...
Qi Shan, Jiaya Jia, Michael S. Brown
VLDB
2007
ACM
155views Database» more  VLDB 2007»
14 years 3 months ago
Best Position Algorithms for Top-k Queries
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...
Reza Akbarinia, Esther Pacitti, Patrick Valduriez
ICDCS
2008
IEEE
14 years 3 months ago
Sensor Node Localization Using Uncontrolled Events
Many event-driven localization methods have been proposed as low cost, energy efficient solutions for wireless senor networks. In order to eliminate the requirement of accurately...
Ziguo Zhong, Dan Wang, Tian He
ICASSP
2011
IEEE
13 years 17 days ago
Joint DOA and TDOA estimation for 3D localization of reflective surfaces using eigenbeam MVDR and spherical microphone arrays
Methods of 3D direction of arrival (DOA) estimation, coherent source detection and reflective surface localization are studied, based on recordings by a spherical microphone array...
Haohai Sun, Edwin Mabande, Konrad Kowalczyk, Walte...
CAGD
2005
93views more  CAGD 2005»
13 years 8 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