AdaFogNet: An Adaptive Preprocessing-Based Deep Learning Model for Multi-Class Fog Severity Classification
摘要
Fog is one of the most dangerous weather phenomena impacting road visibility and greatly elevating the chances of traffic incidents. For intelligent transportation systems and driver-assistant technologies, prompt and accurate determination of fog intensity is critical. This paper introduces a new model called AdaFogNet which combines images captured by VGG16 network with adaptive filters to classify them into three levels - No Fog, Medium Fog, Dense Fog. The Adaptive Fog Filter improves relevant features using Gaussian blur alongside Sobel edge detection and contrast enhancement applied with intensity-aware weighted averaging. Captured features processed through frozen VGG16 convolutional layers followed by custom multi-class dense layers designed for final classification. Experimental results further confirm the outstanding performance of AdaFogNet over state-of-the-art models including VGG16, InceptionNet, MobileNet V3 and ResNet50 achieving 97.73% in accuracy and 98.97% precision giving these systems diverse operational range under varying fog conditions fitting for real-world autonomous and surveillance system deployment. As fog is considered to be a dense aerosol layer of water droplets, the proposed AdaFogNet technique is a significant contribution to aerosol study by presenting a high accuracy classification framework for prediction of fog level in the atmosphere.