结合YOLO Tiny与Haar级联,实现实时识别孟加拉车牌
A Cloud-Based Hybrid Model for Real-Time Detection of BRTA-Approved Licence Plates Using YOLO Tiny and Haar Cascade

- 用YOLO Tiny+Haar级联实现车牌定位,提升复杂环境适应性
- 动态重训练机制使低置信度场景准确率显著提升
- 专为孟加拉交通设计,适合资源受限的本地部署
准确的车辆牌照检测对智能交通系统、收费管理、停车监管和执法至关重要。在孟加拉国,由于本地牌照结构复杂及光照、遮挡、运动模糊、污垢等环境因素,传统方法常失效。本文提出一种新型混合方法,结合YOLO Tiny深度学习模型与Haar-Cascade分类器,以增强对孟加拉语车牌的检测与定位能力。系统核心创新在于引入动态重训练管道,使模型能随新数据持续优化,在低置信度场景中显著提升精度。此外,构建了一个公开可访问的BRTA合规牌照数据集,涵盖多样且具挑战性的拍摄条件。实验表明,该方法在检测准确率和计算效率上优于传统模型,并在资源受限环境下保持稳定性能,尤其适用于孟加拉国实际场景。
原文摘要 · Abstract (English)
Accurate vehicle license plate detection is essential for applications such as intelligent transportation systems, toll collection, parking management, and law enforcement. In Bangladesh, this task presents distinct challenges due to the complexity of localized license plates and environmental factors like lighting, occlusion, motion blur, and obstructions such as dirt or mud. These challenges often render conventional methods ineffective. This paper introduces a novel hybrid approach, combining the YOLO Tiny deep learning model with the Haar-Cascade classifier, for enhanced detection and localization of Bengali license plates. A key innovation of our system is the integration of a dynamic retraining pipeline, which allows the model to adapt to evolving real-world conditions. This retraining mechanism significantly boosts performance in low-confidence scenarios by continuously improving the model's accuracy as new data is encountered. Additionally, a publicly accessible dataset of BRTA-compliant license plates, captured under diverse and challenging conditions, has been developed to support this approach. Experimental results demonstrate that our approach not only achieves superior detection accuracy and computational efficiency over conventional models but also ensures consistent performance in resource-constrained environments, particularly in Bangladesh.
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