780 search results - page 145 / 156 » Detecting Irregularities in Images and in Video |
JMM2
2006
13 years 7 months ago
2006
Spontaneous facial expressions differ from posed expressions in both which muscles are moved, and in the dynamics of the movement. Advances in the field of automatic facial express...
VR
2008
IEEE
13 years 6 months ago
2008
IEEE
We describe a novel markerless camera tracking approach and user interaction methodology for augmented reality (AR) on unprepared tabletop environments. We propose a real-time sys...
ICCV
2007
IEEE
14 years 9 months ago
2007
IEEE
While great strides have been made in detecting and localizing specific objects in natural images, the bottom-up segmentation of unknown, generic objects remains a difficult chall...
FGR
2011
IEEE
12 years 11 months ago
2011
IEEE
Abstract— We propose here to acquire high resolution sequences of a person’s face using a pan-tilt-zoom (PTZ) network camera. This capability should prove helpful in forensic a...
CVPR
2003
IEEE
14 years 9 months ago
2003
IEEE
Background subtraction is the first step of many video surveillance applications. What is considered background varies by application, and may include regular, systematic, or comp...