Title
Activity Video Analysis via Operator-Based Local Embedding.
Abstract
High dimensional data sequences, such as video clips, can be modeled as trajectories in a high dimensional space, and usually exhibit a low dimensional structure intrinsic to each distinct class of data sequence [1]. In this paper, we proposed a novel geometric framework to investigate the temporal relations as well as spatial features in a video sequence. Important visual features are preserved by mapping a high dimensional video sequence to operators in a circulant operator space (image operator space). The corresponding operator sequence is subsequently embedded into a low dimensional space, in which the temporal dynamics of each sequence is well preserved. In addition, an algorithm for human activity video classification is implemented by employing Markov models in the low dimensional embedding space, and illustrating examples and classification performance are presented.
Year
DOI
Venue
2013
10.1007/978-3-642-40020-9_95
GSI
Field
DocType
Citations 
Clustering high-dimensional data,Embedding,Dynamic time warping,Markov model,Computer science,Algorithm,Circulant matrix,Operator (computer programming),Operator space,High dimensional space
Conference
0
PageRank 
References 
Authors
0.34
5
2
Name
Order
Citations
PageRank
Xiao Bian1114.26
Hamid Krim252059.69