An End-to-End Two-Phase Deep Learning-Based workflow to Segment Man-made Objects Around Reservoirs

• URL: http://arxiv.org/abs/2302.03282v2
• Date: Wed, 8 Feb 2023 14:46:05 GMT
• Title: An End-to-End Two-Phase Deep Learning-Based workflow to Segment Man-made Objects Around Reservoirs
• Authors: Nayereh Hamidishad and Roberto Marcondes Cesar Junior
• Abstract summary: We develop a new approach based on DL and image processing techniques for man-made object segmentation around the reservoirs. We trained the proposed workflow using collected Google Earth (GE) images of eight reservoirs in Brazil over two different years.
• Score: 2.7920304852537536
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Reservoirs are fundamental infrastructures for the management of water resources. Constructions around them can negatively impact their quality. Such unauthorized constructions can be monitored by land cover mapping (LCM) remote sensing (RS) images. In this paper, we develop a new approach based on DL and image processing techniques for man-made object segmentation around the reservoirs. In order to segment man-made objects around the reservoirs in an end-to-end procedure, segmenting reservoirs and identifying the region of interest (RoI) around them are essential. In the proposed two-phase workflow, the reservoir is initially segmented using a DL model. A post-processing stage is proposed to remove errors such as floating vegetation. Next, the RoI around the reservoir (RoIaR) is identified using the proposed image processing techniques. Finally, the man-made objects in the RoIaR are segmented using a DL architecture. We trained the proposed workflow using collected Google Earth (GE) images of eight reservoirs in Brazil over two different years. The U-Net-based and SegNet-based architectures are trained to segment the reservoirs. To segment man-made objects in the RoIaR, we trained and evaluated four possible architectures, U-Net, FPN, LinkNet, and PSPNet. Although the collected data has a high diversity (for example, they belong to different states, seasons, resolutions, etc.), we achieved good performances in both phases. Furthermore, applying the proposed post-processing to the output of reservoir segmentation improves the precision in all studied reservoirs except two cases. We validated the prepared workflow with a reservoir dataset outside the training reservoirs. The results show high generalization ability of the prepared workflow.

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