324 search results - page 28 / 65 » A semi-fragile object based video authentication system |
TMM
2002
13 years 7 months ago
2002
Most image and video compression algorithms that have been proposed to improve picture quality relative to compression efficiency have either been designed based on objective crite...
CVPR
2003
IEEE
14 years 9 months ago
2003
IEEE
Cast shadows produce troublesome effects for video surveillance systems, typically for object tracking from a fixed viewpoint, since it yields appearance variations of objects dep...
ICCV
2001
IEEE
14 years 9 months ago
2001
IEEE
In this paper, we propose a method for generating realistic shadows of virtual objects inserted into a real video sequence. Our aim is to improve and extend the work of [1], which...
ICPR
2006
IEEE
14 years 1 months ago
2006
IEEE
This paper presents a real time video surveillance system which is capable of tracking multiple humans simultaneously. To better deal with various challenging issues such as occlu...
PCM
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. A prototype basketball video retrieval system is presented in this report. Retrieval is based on the similarity of ball motion in the clip with that in the query. The sys...