Significant expansion of small water bodies in the Dongting Lake region following the impoundment of the Three Gorges Dam

Journal of Environmental Management, Год журнала: 2025, Номер 376, С. 124443 - 124443

Опубликована: Фев. 8, 2025

Язык: Английский

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Mapping seamless surface water dynamics over East Africa semimonthly at a 10-meter resolution in 2017–2023 by integrating Sentinel-1/2 data

ISPRS Journal of Photogrammetry and Remote Sensing, Год журнала: 2025, Номер 225, С. 440 - 460

Опубликована: Май 15, 2025

Язык: Английский

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A Lightweight Network for Water Body Segmentation in Agricultural Remote Sensing Using Learnable Kalman Filters and Attention Mechanisms

Applied Sciences, Год журнала: 2025, Номер 15(11), С. 6292 - 6292

Опубликована: Июнь 3, 2025

Precise identification of water bodies in agricultural watersheds is crucial for irrigation, resource management, and flood disaster prevention. However, the spectral noise caused by complex light shadow interference quality differences, combined with diverse shapes high computational cost image processing, severely limits accuracy body recognition watersheds. This paper proposed a lightweight efficient learnable Kalman filter Deformable Convolutional Attention Network (LKF-DCANet). The encoder built using shallow Channel Attention-Enhanced Convolution module (CADCN), while decoder combines Additive Token Mixer (CATM) (LKF) to achieve adaptive suppression enhance global context modeling. Additionally, feature-based knowledge distillation strategy employed further improve representational capacity model. Experimental results show that LKF-DCANet achieves an Intersection over Union (IoU) 85.95% only 0.22 M parameters on public dataset. When transferred self-constructed UAV dataset, it IoU 96.28%, demonstrating strong generalization ability. All experiments are conducted RGB optical imagery, confirming offers highly versatile solution segmentation precision agriculture.

Язык: Английский

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High-Precision Tea Plantation Mapping with Multi-Source Remote Sensing and Deep Learning

Agronomy, Год журнала: 2024, Номер 14(12), С. 2986 - 2986

Опубликована: Дек. 15, 2024

Accurate mapping of tea plantations is crucial for agricultural management and economic planning, yet it poses a significant challenge due to the complex variable nature cultivation landscapes. This study presents high-precision approach in Anji County, Zhejiang Province, China, utilizing multi-source remote sensing data advanced deep learning models. We employed combination Sentinel-2 optical imagery, Sentinel-1 synthetic aperture radar digital elevation models capture rich spatial, spectral, temporal characteristics plantations. Three models, namely U-Net, SE-UNet, Swin-UNet, were constructed trained semantic segmentation Cross-validation point-based accuracy assessment methods used evaluate performance The results demonstrated that Swin-UNet model, transformer-based capturing long-range dependencies global context superior feature extraction, outperformed others, achieving an overall 0.993 F1-score 0.977 when using multi-temporal data. integration with slightly improved classification accuracy, particularly areas affected by cloud cover, highlighting complementary imagery all-weather monitoring. also analyzed influence terrain factors, such as elevation, slope, aspect, on plantation mapping. It was found at higher altitudes or north-facing slopes exhibited improves increasing likely simpler land cover types tea’s preference shade. findings this research not only provide valuable insights into precision but contribute broader application

Язык: Английский

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Optimum flood inundation mapping in mountainous regions using Sentinel-1 data and a GIS-based multi-criteria approach: a case study of Tlawng river basin, Mizoram, India

Environmental Monitoring and Assessment, Год журнала: 2024, Номер 196(12)

Опубликована: Ноя. 21, 2024

Язык: Английский

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