Title
Recognizing Human Actions by Using Spatio-temporal Motion Descriptors
Abstract
This paper presents a novel tool for detecting human actions in stationary surveillance camera videos. In the proposed method there is no need to detect and track the human body or to detect the spatial or spatio-temporal interest points of the events. Instead our method computes single-scale spatio-temporal descriptors to characterize the action patterns. Two different descriptors are evaluated: histograms of optical flow directions and histograms of frame difference gradients. The integral video method is also presented to improve the performance of the extraction of these features. We evaluated our methods on two datasets: a public dataset containing actions of persons drinking and a new dataset containing stand up events. According to our experiments both detectors are suitable for indoor applications and provide a robust tool for practical problems such as moving background, or partial occlusion.
Year
DOI
Venue
2010
10.1007/978-3-642-17691-3_34
ADVANCED CONCEPTS FOR INTELLIGENT VISION SYSTEMS, PT II
Keywords
Field
DocType
Human action recognition,optical flow,frame difference
Computer vision,Histogram,Pattern recognition,Computer science,Frame difference,Surveillance camera,Artificial intelligence,Optical flow
Conference
Volume
ISSN
Citations 
6475
0302-9743
0
PageRank 
References 
Authors
0.34
16
2
Name
Order
Citations
PageRank
Ákos Utasi1496.40
Andrea Kovács2373.56