Abrantes, Arnaldo Joaquim CastroCosta, Pedro Cláudio Amaro da2025-03-052025-03-052024-12COSTA, Pedro Cláudio Amaro da – Synthetic data generation for lane detection: validation and analysis. Lisboa: Instituto Superior de Engenharia de Lisboa. 2024. Dissertação de Mestrado.http://hdl.handle.net/10400.21/21628Dissertation submitted in partial fulfillment of the requirements for the degree of Master of Science in Informatics and Multimedia EngineeringAbstract Autonomous driving systems rely absolutely on lane detection. Therefore, ensuring its reliability is crucial for road safety. This work proposes validating one of the leading lane detection models in the CULane benchmark with an alternative synthetic dataset, with full automated ground truth labeling, from Epic Games’ Unreal Engine 5—a dynamically enriched, photorealistic simulation environment. By providing a range of diverse and challenging conditions (circadian, climatic, and road types), we aim to analyze the algorithm’s robustness and, in parallel, collect reference indicators of the domain gap versus real-world datasets. Results reinforce the role of synthetic data in expanding test coverage and minimizing the imbalance of training datasets for safetycritical applications.engSynthetic dataDomain gapLane detectionAutonomous drivingmaster thesis203797680