Validation points generation for LiDAR-extracted hydrologic features

Recognizing and classifying natural or artificial geo-objects under complex geo-scenes using remotely sensed data remains a significant challenge due to the heterogeneity in their spatial distribution and sampling bias. In this study, we propose a deep learning method of surface complexity analysis based on multiscale entropy. This method can be used to reduce sampling bias and preserve entropy-based invariance in learning for the semantic segmentation of land use and land cover (LULC) images. Our quantitative models effectively identified and extracted local surface complexity scores, demonstrating their broad applicability. We tested our method using the Gaofen-2 image dataset in mainland China and accurately estimated multiscale complexity. A downstream evaluation revealed that our approach achieved similar or better performance compared to several representative state-of-the-art deep learning methods. This highlights the innovative and significant contribution of our entropy-based complexity analysis and its applicability in improving LULC semantic segmentations through optimal stratified sampling and constrained optimization, which can also potentially be used to enhance semantic segmentation under complex geo-scenes using other machine learning methods.

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Multiscale Entropy-Based Surface Complexity Analysis for Land Cover Image Semantic Segmentation

Zhu

Wang

2023

Remote Sensing

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Validation points generation for LiDAR-extracted hydrologic features

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Multiscale Entropy-Based Surface Complexity Analysis for Land Cover Image Semantic Segmentation

Multiscale Entropy-Based Surface Complexity Analysis for Land Cover Image Semantic Segmentation

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