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PR
2002
202views more  PR 2002»
13 years 7 months ago
Illumination color covariant locale-based visual object retrieval
Search by Object Model -- finding an object inside a target image -- is a desirable and yet difficult mechanism for querying multimedia data. An added difficulty is that objects c...
Mark S. Drew, Ze-Nian Li, Zinovi Tauber
ICMCS
2009
IEEE
142views Multimedia» more  ICMCS 2009»
13 years 5 months ago
PTZ camera calibration for Augmented Virtual Environments
Augmented Virtual Environments(AVE) are very effective in the application of surveillance, in which multiple video streams are projected onto a 3D urban model for better visualiza...
Lu Wang, Suya You, Ulrich Neumann
CVPR
2011
IEEE
2153views Computer Vision» more  CVPR 2011»
13 years 3 months ago
The Light-Path Less Traveled
This paper extends classical object pose and relative camera motion estimation algorithms for imaging sensors sampling the scene through light-paths. Many algorithms in multi-view...
Srikumar Ramalingam, Sofien Bouaziz, Peter Sturm, ...
ICCV
2009
IEEE
15 years 21 days ago
Color Constancy using 3D Scene Geometry
The aim of color constancy is to remove the effect of the color of the light source. As color constancy is inherently an ill-posed problem, most of the existing color constancy ...
Rui Lu, Arjan Gijsenij, Theo Gevers
ISBI
2004
IEEE
14 years 8 months ago
A Fast Fully 4D Incremental Gradient Reconstruction Algorithm for List Mode PET Data
We present a fully four-dimensional, globally convergent, incremental gradient algorithm to estimate the continuous-time tracer density from list mode positron emission tomography...
Quanzheng Li, Evren Asma, Richard M. Leahy