Anomaly Detection Using Classification CNN Models: A Video Analytic Approach

S. Girisha, M. M.Manohara Pai, Ujjwal Verma, Radhika M. Pai, S. Shreesha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Video anomaly detection has gained much attention in the computer vision community due to its wide applications in security. Specifically, the focus has been on feature extraction and the design of inference algorithms. The extraction of features to model the normality is challenging due to the scarcity of data and supervision. To this end, current computer vision technologies use reconstruction based methods that relied on auto-encoders to reconstruct normal events in an unsupervised manner. Higher reconstruction errors are often used to detect anomalies. However, the use of multiple auto-encoders to extract features (temporal and appearance) is redundant and expensive for videos. In this context, the present study proposes a novel feature extractor that uses a single CNN architecture to extract both temporal and appearance features. Also, this model is trained for classification tasks which are adapted as feature extractors in anomaly detection. The training of this model is easy and can be deployed efficiently due to its lightweight architecture. Further, the proposed model has been quantitatively evaluated on the UCSD ped 2 dataset and found to perform competitively with an AUC of 0.958.

Original languageEnglish
Title of host publicationTENCON 2021 - 2021 IEEE Region 10 Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages923-928
Number of pages6
ISBN (Electronic)9781665495325
DOIs
Publication statusPublished - 2021
Event2021 IEEE Region 10 Conference, TENCON 2021 - Auckland, New Zealand
Duration: 07-12-202110-12-2021

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
Volume2021-December
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450

Conference

Conference2021 IEEE Region 10 Conference, TENCON 2021
Country/TerritoryNew Zealand
CityAuckland
Period07-12-2110-12-21

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

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