Abnormal Activity Recognition Using Saliency and Spatio-Temporal Interest Point Detector

2018 ◽  
pp. 291-301
Author(s):  
Smriti H. Bhandari ◽  
Navnee S. Babar
Keyword(s):  
Activity Recognition ◽  
Interest Point ◽  
Spatio Temporal ◽  
Interest Point Detector ◽  
Point Detector

Learning to Recognise Spatio-Temporal Interest Points

2010 ◽  
pp. 14-30
Author(s):  
Olusegun T. Oshin ◽  
Andrew Gilbert ◽  
John Illingworth ◽  
Richard Bowden
Keyword(s):  
Frame Rate ◽  
Interest Point ◽  
Computationally Efficient ◽  
Interest Points ◽  
Scanning Window ◽  
Spatio Temporal ◽  
Interest Point Detector ◽  
Window Approach ◽  
Point Detection ◽  
Point Detector

In this chapter, we present a generic classifier for detecting spatio-temporal interest points within video, the premise being that, given an interest point detector, we can learn a classifier that duplicates its functionality and which is both accurate and computationally efficient. This means that interest point detection can be achieved independent of the complexity of the original interest point formulation. We extend the naive Bayesian classifier of Randomised Ferns to the spatio-temporal domain and learn classifiers that duplicate the functionality of common spatio-temporal interest point detectors. Results demonstrate accurate reproduction of results with a classifier that can be applied exhaustively to video at frame-rate, without optimisation, in a scanning window approach.

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