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Understanding video events: A survey of methods for automatic interpretation of semantic occurrences in videos
| Venue: | TSMC |
| Citations: | 51 - 0 self |
BibTeX
@ARTICLE{Lavee_understandingvideo,
author = {Gal Lavee and Ehud Rivlin and Michael Rudzsky},
title = {Understanding video events: A survey of methods for automatic interpretation of semantic occurrences in videos},
journal = {TSMC},
year = {},
pages = {2009}
}
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Abstract
Abstract: Understanding Video Events, the translation of low-level content in video sequences into highlevel semantic concepts, is a research topic that has received much interest in recent years. Important applications of this work include smart surveillance systems, semantic video database indexing, and interactive systems. This technology can be applied to several video domains including: airport terminal, parking lot, traffic, subway stations, aerial surveillance, and sign language data. In this work we survey the two main components of the event understanding process: Abstraction and Event modeling. Abstraction is the process of molding the data into informative units to be used as input to the event model. Event modeling is devoted to describing events of interest formally and enabling recognition of these events as they occur in the video sequence. Event modeling can be further decomposed in the categories of Pattern Recognition Methods, State Event Models, and Semantic Event Models. In this survey we discuss this proposed taxonomy of the literature, offer a unifying terminology, and discuss popular abstraction schemes (e.g. Motion History Images) and event modeling formalisms (e.g. Hidden Markov Model) and their use in video event understanding using extensive examples from the literature. Finally we consider the application domain of video event understanding in light of the proposed taxonomy, and propose future directions for research in this field.
Keyphrases
video event event modeling semantic occurrence automatic interpretation video sequence motion history image pattern recognition method subway station low-level content state event model event modeling formalism semantic event model research topic semantic video database indexing important application smart surveillance system understanding video event highlevel semantic concept propose future direction video event understanding airport terminal informative unit much interest popular abstraction scheme application domain aerial surveillance event model hidden markov model unifying terminology several video domain recent year extensive example main component interactive system sign language data
