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CVPR
2011
IEEE
13 years 3 months ago
Extracting and Locating Temporal Motifs in Video Scenes Using a Hierarchical Non Parametric Bayesian Model
In this paper, we present an unsupervised method for mining activities in videos. From unlabeled video sequences of a scene, our method can automatically recover what are the recu...
Ré, mi Emonet, Jagannadan Varadarajan, Jean-Marc ...
ICCV
2007
IEEE
14 years 9 months ago
Toward Reconstructing Surfaces With Arbitrary Isotropic Reflectance : A Stratified Photometric Stereo Approach
We consider the problem of reconstructing the shape of a surface with an arbitrary, spatially varying isotropic bidirectional reflectance distribution function (BRDF), and introdu...
Neil G. Alldrin, David J. Kriegman
TCOM
2010
162views more  TCOM 2010»
13 years 2 months ago
RFID Reader Receivers for Physical Layer Collision Recovery
Abstract--Arbitration and scheduling of multiple tags in stateof-the-art Radio Frequency Identification (RFID) systems is accomplished on the medium access control layer. Currently...
Christoph Angerer, Robert Langwieser, Markus Rupp
SIGMOD
2010
ACM
184views Database» more  SIGMOD 2010»
14 years 15 days ago
Load-balanced query dissemination in privacy-aware online communities
We propose a novel privacy-preserving distributed infrastructure in which data resides only with the publishers owning it. The infrastructure disseminates user queries to publishe...
Emiran Curtmola, Alin Deutsch, K. K. Ramakrishnan,...
PAMI
2006
221views more  PAMI 2006»
13 years 7 months ago
Face Recognition from a Single Training Image under Arbitrary Unknown Lighting Using Spherical Harmonics
In this paper, we propose two novel methods for face recognition under arbitrary unknown lighting by using spherical harmonics illumination representation, which require only one t...
Lei Zhang 0002, Dimitris Samaras