HydroVision: Predicting Optically Active Parameters in Surface Water Using Computer Vision

• URL: http://arxiv.org/abs/2509.01882v2
• Date: Wed, 03 Sep 2025 13:00:31 GMT
• Title: HydroVision: Predicting Optically Active Parameters in Surface Water Using Computer Vision
• Authors: Shubham Laxmikant Deshmukh, Matthew Wilchek, Feras A. Batarseh,
• Abstract summary: This work introduces a deep learning-based scene classification framework that estimates optically active water quality parameters.<n>The model is trained on more than 500,000 seasonally varied images collected from the United States Geological Survey.<n>DenseNet121 achieves the highest validation performance, with an R2 score of 0.89 in predicting CDOM, demonstrating the framework's promise for real-world water quality monitoring.
• Score: 0.4893896929103368
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Ongoing advancements in computer vision, particularly in pattern recognition and scene classification, have enabled new applications in environmental monitoring. Deep learning now offers non-contact methods for assessing water quality and detecting contamination, both critical for disaster response and public health protection. This work introduces HydroVision, a deep learning-based scene classification framework that estimates optically active water quality parameters including Chlorophyll-Alpha, Chlorophylls, Colored Dissolved Organic Matter (CDOM), Phycocyanins, Suspended Sediments, and Turbidity from standard Red-Green-Blue (RGB) images of surface water. HydroVision supports early detection of contamination trends and strengthens monitoring by regulatory agencies during external environmental stressors, industrial activities, and force majeure events. The model is trained on more than 500,000 seasonally varied images collected from the United States Geological Survey Hydrologic Imagery Visualization and Information System between 2022 and 2024. This approach leverages widely available RGB imagery as a scalable, cost-effective alternative to traditional multispectral and hyperspectral remote sensing. Four state-of-the-art convolutional neural networks (VGG-16, ResNet50, MobileNetV2, DenseNet121) and a Vision Transformer are evaluated through transfer learning to identify the best-performing architecture. DenseNet121 achieves the highest validation performance, with an R2 score of 0.89 in predicting CDOM, demonstrating the framework's promise for real-world water quality monitoring across diverse conditions. While the current model is optimized for well-lit imagery, future work will focus on improving robustness under low-light and obstructed scenarios to expand its operational utility.

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