A master thesis from Aalborg University
Semantic Segmentation in Anomaly Detection: Researching the feasibility of utilizing semantic segmentation in anomaly detection
Author(s)
Term
4. term
Publication year
2021
Submitted on
2021-06-18
Pages
53 pages
Abstract
This project sets out to investigate if semantic segmentation can be used to improve anomaly detection. The problem analysis is centered around finding the best practices for using a dataset on each system without ground truth for both systems available. To achieve this, an analysis is made on segmentation results from models on the anomaly detection dataset UCHK Avenue, and the semantic segmentation dataset Cityscapes is manually annotated with frame specific anomalies. The system used for the anomaly detection is a General adversarial network predicting future frames from spatial and temporal constraints. Testing on the datasets showed that segmented frames can achieve accuracy with the system competitive with RGB frames given a high enough segmentation accuracy.
This project sets out to investigate if semantic segmentation can be used to improve anomaly detection. The problem analysis is centered around finding the best practices for using a dataset on each system without ground truth for both systems available. To achieve this, an analysis is made on segmentation results from models on the anomaly detection dataset UCHK Avenue, and the semantic segmentation dataset Cityscapes is manually annotated with frame specific anomalies. The system used for the anomaly detection is a General adversarial network predicting future frames from spatial and temporal constraints. Testing on the datasets showed that segmented frames can achieve accuracy with the system competitive with RGB frames given a high enough segmentation accuracy.
Keywords
semantic ; segmentation ; anomaly ; abnormal ; avenue ; cityscapes
Documents
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