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136
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MMAS
2011
Springer
14 years 3 months ago
Sweeping Preconditioner for the Helmholtz Equation: Moving Perfectly Matched Layers
This paper introduces a new sweeping preconditioner for the iterative solution of the variable coefficient Helmholtz equation in two and three dimensions. The algorithms follow th...
Björn Engquist, Lexing Ying
129
Voted
ICCV
2011
IEEE
14 years 23 days ago
Learning a Category Independent Object Detection Cascade
Cascades are a popular framework to speed up object detection systems. Here we focus on the first layers of a category independent object detection cascade in which we sample a l...
Esa Rahtu, Juho Kannala, Matthew Blaschko
COMSUR
2011
198views Hardware» more  COMSUR 2011»
14 years 16 days ago
Optical Layer Monitoring Schemes for Fast Link Failure Localization in All-Optical Networks
—Optical layer monitoring and fault localization serves as a critical functional module in the control and management of optical networks. An efficient monitoring scheme aims at ...
Bin Wu, Pin-Han Ho, Kwan Lawrence Yeung, Já...
EGH
2011
Springer
14 years 15 days ago
Simpler and Faster HLBVH with Work Queues
A recently developed algorithm called Hierachical Linear Bounding Volume Hierarchies (HLBVH) has demonstrated the feasibility of reconstructing the spatial index needed for ray tr...
Kirill Garanzha, Jacopo Pantaleoni, David K. McAll...
111
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ICMCS
2007
IEEE
203views Multimedia» more  ICMCS 2007»
15 years 7 months ago
Efficient Video Object Segmentation by Graph-Cut
Segmentation of video objects from background is a popular computer vision problem and has many important applications. Most existing methods are either computationally expensive ...
Jinjun Wang, Wei Xu, Shenghuo Zhu, Yihong Gong