Sciweavers

CVPR
2012
IEEE
12 years 2 months ago
Capturing relightable images using computer monitors
Image based relighting techniques are a popular choice for generating photo-realistic images of objects under any lighting condition. A typical process for creating such a model i...
Prabath Gunawardane, Steven Scher, James Davis
STOC
2012
ACM
192views Algorithms» more  STOC 2012»
12 years 2 months ago
Nearly optimal sparse fourier transform
We consider the problem of computing the k-sparse approximation to the discrete Fourier transform of an ndimensional signal. We show: • An O(k log n)-time randomized algorithm f...
Haitham Hassanieh, Piotr Indyk, Dina Katabi, Eric ...
TOG
2012
184views Communications» more  TOG 2012»
12 years 2 months ago
Point sampling with general noise spectrum
Point samples with different spectral noise properties (often defined using color names such as white, blue, green, and red) are important for many science and engineering discip...
Yahan Zhou, Haibin Huang, Li-Yi Wei, Rui Wang
INFOCOM
2012
IEEE
12 years 2 months ago
Cuckoo sampling: Robust collection of flow aggregates under a fixed memory budget
—Collecting per-flow aggregates in high-speed links is challenging and usually requires traffic sampling to handle peak rates and extreme traffic mixes. Static selection of sa...
Josep Sanjuàs-Cuxart, Pere Barlet-Ros, Nick...
ASPDAC
2010
ACM
120views Hardware» more  ASPDAC 2010»
13 years 10 months ago
Wideband reduced modeling of interconnect circuits by adaptive complex-valued sampling method
In this paper, we propose a new wideband model order reduction method for interconnect circuits by using a novel adaptive sampling and error estimation scheme. We try to address t...
Hai Wang, Sheldon X.-D. Tan, Gengsheng Chen
TOG
2008
140views more  TOG 2008»
14 years 10 days ago
Multidimensional adaptive sampling and reconstruction for ray tracing
We present a new adaptive sampling strategy for ray tracing. Our technique is specifically designed to handle multidimensional sample domains, and it is well suited for efficientl...
Toshiya Hachisuka, Wojciech Jarosz, Richard Peter ...
MTA
2008
87views more  MTA 2008»
14 years 12 days ago
A cross-modal approach for karaoke artifacts correction
Karaoke singing is a popular form of entertainment in several parts of the world. Since this genre of performance attracts amateurs, the singing often has artifacts related to scal...
Wei-Qi Yan, Mohan S. Kankanhalli
GRAPHICSINTERFACE
2003
14 years 1 months ago
Entropy-based Adaptive Sampling
Ray tracing techniques need supersampling to reduce aliasing and/or noise in the final image. Since not all the pixels in the image require the same number of rays, supersampling...
Jaume Rigau, Miquel Feixas, Mateu Sbert
NETWORKING
2008
14 years 1 months ago
Network Performance Assessment Using Adaptive Traffic Sampling
Multimedia and real-time services are spreading all over the Internet. The delivery quality of such contents is closely related to its network performance, for example in terms suc...
René Serral-Gracià, Albert Cabellos-...
PODS
2000
ACM
146views Database» more  PODS 2000»
14 years 4 months ago
Analysis and Application of Adaptive Sampling
An estimation algorithm for a query is a probabilistic algorithm that computes an approximation for the size (number of tuples) of the query. One class of estimation algorithms us...
James F. Lynch