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ICPR
2008
IEEE
15 years 22 days ago
Learning motion patterns in crowded scenes using motion flow field
Learning typical motion patterns or activities from videos of crowded scenes is an important visual surveillance problem. To detect typical motion patterns in crowded scenarios, w...
Min Hu, Mubarak Shah, Saad Ali
ICPR
2008
IEEE
15 years 22 days ago
Implicit active shape model employing boundary classifier
We present an algorithm for the segmentation of the liver in 2-D computed tomography slice images. The basis for our algorithm is an implicit active shape model. In order to detec...
Andreas Wimmer, Joachim Hornegger, Grzegorz Soza
ICPR
2008
IEEE
15 years 22 days ago
Boosting local feature descriptors for automatic objects classification in traffic scene surveillance
We address the problem of automatic object classification for traffic scene surveillance, which is very challenging for the low resolution videos, large intraclass variations and ...
Kaiqi Huang, Min Li, Tieniu Tan, Zhaoxiang Zhang
ICPR
2008
IEEE
15 years 22 days ago
Motion segmentation by consensus
We present a method for merging multiple partitions into a single partition, by minimising the ratio of pairwise agreements and contradictions between the equivalence relations cor...
Roberto Fraile, David C. Hogg, Anthony G. Cohn
ICPR
2008
IEEE
15 years 22 days ago
Incremental learning in non-stationary environments with concept drift using a multiple classifier based approach
We outline an incremental learning algorithm designed for nonstationary environments where the underlying data distribution changes over time. With each dataset drawn from a new e...
Matthew T. Karnick, Michael Muhlbaier, Robi Polika...
ICPR
2008
IEEE
15 years 22 days ago
Distance transformation, reverse distance transformation and discrete medial axis on toric spaces
In this paper, we present optimal in time algorithms to compute the distance transform, the reverse distance transform and the discrete medial axis on digital objects embedded on ...
David Coeurjolly
ICPR
2008
IEEE
15 years 22 days ago
Visual planes-based simultaneous localization and model refinement for augmented reality
This paper presents a method for camera pose tracking that uses a partial knowledge about the scene. The method is based on monocular vision Simultaneous Localization And Mapping ...
Éric Marchand, Fabien Servant, Isabelle Mar...
ICPR
2008
IEEE
15 years 22 days ago
Scale-invariant medial features based on gradient vector flow fields
We propose a novel set of medial feature interest points based on gradient vector flow (GVF) fields [18]. We exploit the long ranging GVF fields for symmetry estimation by calcula...
Cristóbal Curio, David Engel
ICPR
2008
IEEE
15 years 22 days ago
Refining PTZ camera calibration
Due to the increased need for security and surveillance, PTZ cameras are now being widely used in many domains. Therefore, it is very important for the applications like video mos...
Hassan Foroosh, Imran N. Junejo