2026-06-08T03:08:26Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1251992025-10-22T00:08:00Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Martínez Núñez, Domingo author López Hernández, Fernando Carlos author Rainer Granados, José Javier 2025-10-21T14:03:48Z 2025-10-21T14:03:48Z 2025 10.9781/ijimai.2024.08.004 https://hdl.handle.net/20.500.14352/125199 http://dx.doi.org/10.9781/ijimai.2024.08.004 This paper describes the development and evaluation of a surveillance system for the detection of people and objects on railroad tracks in real time. Firstly, the paper evaluates several background subtraction techniques including CNNs and the object detection library called YOLO. Then we describe a novel strategy to mitigate the occlusion caused by the perspective of the camera and the integration of an alarms and pre-alarms policy. To evaluate its performance, we have implemented and automated the control and notification aspects of the surveillance system using computer vision techniques. This setup, running on a standard PC, achieves an average frame rate of 15 FPS and a latency of 0.54 seconds per frame, meeting real-time expectations in terms of both false alarms and precision in operational mode. The results from experiments conducted with a publicly available recorded video dataset from Metro de Madrid facilities demonstrate significant improvements over current state-of the-art solutions. These improvements include better accident anticipation and enhanced information provided to the operator using a standard low-cost camera. Consequently, we conclude that the approach described in this paper is both effective and a more practical, cost-efficient alternative to the other solutions reviewed. eng Attribution 4.0 International Automatic Surveillance of People and Objects on Railway Tracks journal article 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URL https://docta.ucm.es/bitstreams/7e584863-8b29-4873-861e-1a6364117876/download File MD5 658e172905c6846b25ac9351fd37557b 471905 application/pdf automatic_surveillance_railway.pdf