Paper Info
Title
Non-linear eigenspace visual object tracking.
Abstract
This paper presents a visual object tracking algorithm using an eigenspace representation. Previous approaches to eigenspace methods for object tracking use vectorized image regions as observations. Here, feature vectors associated to pixels of the target template are considered to be individual observations of the target object. The collection of observations is learned using non-linear subspace projection to arrive at an eigenspace representation. This representation allows tracking pixel-wise but the pixels are tied together using subspace representation which provides a robust and compact representation of the object. Localization and segmentation are carried out by deriving a similarity function in the eigenspace representation. A gradient descent and mean-shift based techniques are derived to maximize the similarity function with respect to the transformation parameters. The de-noising and clustering capabilities of the eigenspace representation lead to a localization procedure that is robust to noise and partial occlusion. For fast moving objects and to recover from total occlusion, a probabilistic search strategy, based on particle filter, is also developed. A unique feature of our approach is that it permits segmentation in addition to localization when multiple templates of the target are given. The performance of the algorithm is tested on real world tracking examples.
Year
DOI
Venue
2016
10.1016/j.engappai.2016.08.005
Engineering Applications of Artificial Intelligence
Keywords
Field
DocType
Visual tracking,Kernel methods,Particle filter,Machine learning,Vision systems
Computer science,Artificial intelligence,Cluster analysis,Computer vision,Gradient descent,Feature vector,Pattern recognition,Subspace topology,Segmentation,Video tracking,Pixel,Kernel method,Machine learning
Journal
Volume
ISSN
Citations 
55
0952-1976
1
PageRank 
References 
Authors
0.35
31
2
Name
Order
Citations
PageRank
Iftikhar Majeed110.69
Omar Arif2225.87