CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
In this paper, we propose a method for estimating the
optical center of a camera given only a single image with
vignetting. This is accomplished by identifying the center
of the...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
The problem of recognizing actions in realistic videos
is challenging yet absorbing owing to its great potentials
in many practical applications. Most previous research is
limit...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
The visual surveillance task is to monitor the activity of objects in a scene. In far-field settings (i.e., wide outdoor areas), the majority of visible activities are objects movi...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
Much of recent action recognition research is based on
space-time interest points extracted from video using a Bag
of Words (BOW) representation. It mainly relies on the discrimi...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
Convex and continuous energy formulations for low level
vision problems enable efficient search procedures for the
corresponding globally optimal solutions. In this work we
exte...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
As a well known fixed-point iteration algorithm for kernel
density mode-seeking, Mean-Shift has attracted wide attention
in pattern recognition field. To date, Mean-Shift algorit...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
The mean shift algorithm, which is a nonparametric density
estimator for detecting the modes of a distribution on a
Euclidean space, was recently extended to operate on analytic
...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
Image classification and annotation are important problems
in computer vision, but rarely considered together. Intuitively,
annotations provide evidence for the class label,
and...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
We present a simple framework to model contextual
relationships between visual concepts. The new framework
combines ideas from previous object-centric methods
(which model conte...
CVPR
2009
IEEE
15 years 6 months ago
2009
IEEE
We extend photometric stereo to make it work with internet
images, which are typically associated with different
viewpoints and significant noise. For popular tourism
sites, tho...