AI-Based ANPR SystemforIntelligent Vehicle Speed Detection

Author: Chenna kesava Reddy S ,Dr. Nityananatham Sampathkumar ,AkshayKumar Varma S , Akhil Chowdary R , Ramakanth Reddy V
Published Online: July 1, 2026
DOI: http://doi.org/10.63766/spujstmr.26.000096
Abstract
References

:Vehicleoverspeeding is one of the major causes of road accidents, making automated and reliable speed monitoring systems essential for modern traffic management. This paper presents an AI-based Automatic Number Plate Recognition (ANPR) system for intelligent vehicle speed detection using a dual-camera approach. The proposed system captures vehicle images at two fixed checkpoints and calculates the average speed based on the time difference and known distance between the cameras. Deep learning models are employed to detect vehicles and localize number plates, while an optical character recognition (OCR) pipeline is used to extract license plate information. To improve recognition accuracy under real-world conditions, image preprocessing techniques such as contrast enhancement and adaptive thresholding are applied before OCR. The system supports multiple vehicle categories with predefined speed limits and automatically identifies overspeed violations. A web-based interface is developed to store records, visualize data, and generate downloadable PDF evidence reports for detected violations. Experimental evaluation conducted on real vehicle samples demonstrates improved plate recognition accuracy and reliable speed estimation compared to conventional approaches reported in existing literature. The proposed system offers a practical and scalable solution for intelligent traffic speed monitoring applications.

Keywords: Automatic Number Plate Recognition (ANPR), Vehicle Speed Detection, Average Speed Enforcement, Deep Learning, YOLO, Optical Character Recognition, Intelligent Traffic Monitoring.
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