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Efficient anomaly recognition using surveillance videos.

Gulshan Saleem1, Usama Ijaz Bajwa1, Rana Hammad Raza2

  • 1Department of Computer Science, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.

Peerj. Computer Science
|October 20, 2022
PubMed
Summary

This study introduces an efficient and cost-effective smart surveillance system for anomaly recognition. The Temporal based Anomaly Recognizer (TAR) framework improves accuracy and reduces computational costs in real-time video analysis.

Keywords:
Anomaly recognitionCrime detectionDeep learningVideo analysisVideo surveillance

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Area of Science:

  • Computer Science
  • Artificial Intelligence
  • Machine Learning

Background:

  • Smart surveillance is crucial for human safety but faces challenges in cost, real-time processing, and accurate anomaly detection.
  • Existing systems, especially those using 3D convolutional neural networks, are computationally expensive and impractical for widespread deployment.
  • Automated surveillance struggles with defining anomalies and processing large volumes of data like 24/7 CCTV footage.

Purpose of the Study:

  • To develop a resource-efficient and cost-effective framework for anomaly recognition in smart surveillance.
  • To address the computational overhead bottleneck in real-time automated surveillance systems.
  • To achieve high accuracy in anomaly recognition while minimizing computational resource requirements.

Main Methods:

  • Proposed the Temporal based Anomaly Recognizer (TAR) framework, combining a partial shift strategy with a 2D convolutional architecture (MobileNetV2).
  • Evaluated the framework on the UCF Crime dataset for anomaly recognition.
  • Tested the model's performance on spatially augmented surveillance videos for both two-class and multi-class anomaly recognition.

Main Results:

  • Achieved 88% accuracy on the UCF Crime dataset, outperforming state-of-the-art by 2.47%.
  • Obtained 52.7% accuracy for multi-class anomaly recognition on the UCF Crime2Local dataset.
  • Demonstrated real-time capability by handling six simultaneous camera streams without additional resources.

Conclusions:

  • The TAR framework offers an efficient and accurate solution for anomaly recognition in smart surveillance.
  • The proposed system is cost-effective and suitable for real-time applications, overcoming previous computational limitations.
  • This research advances the practical implementation of smart surveillance for enhanced public and private safety.