arXiv:2412.16046cs.CV2024-12被引 1

EcoMapper可自动分割高分辨率遥感图像中任意地物,无需定制模型。

Segmentation of arbitrary features in very high resolution remote sensing imagery

  • 构建全自动流程,统一处理数据、训练与推理
  • 在真实无人机数据上成功分割两种地物,效果媲美专用模型
  • 提出地面采样距离与地物尺寸关系的量化指标,指导野外调查

通过遥感(RS)影像实现超高分辨率(VHR)制图为诸多领域决策与可持续实践提供了新机遇。高效处理大规模VHR数据需适用于多种地理区域和地物类型的自动化工具。现有研究多采用针对特定数据集或地物的深度学习(DL)模型,限制了跨场景应用。本文提出EcoMapper,一种可扩展的解决方案,用于在VHR RS影像中分割任意地物。EcoMapper实现了地理空间数据处理、深度学习模型训练与推理的全流程自动化。在真实无人机数据集上,使用EcoMapper训练的模型成功分割了两种不同地物,性能达到先前针对特定场景设计模型的水平。为评估EcoMapper,还基于主要野外调查特征(FSCs)的组合训练了多个模型,发现可通过地物尺寸推导最优地面采样距离,提出名为Cording Index(CI)的关系式。同时建立了一套完整的野外调查方法论,确保所采集数据能有效支持深度学习应用。相关代码已开源:https://github.com/hcording/ecomapper。

原文摘要 · Abstract (English)

Very high resolution (VHR) mapping through remote sensing (RS) imagery presents a new opportunity to inform decision-making and sustainable practices in countless domains. Efficient processing of big VHR data requires automated tools applicable to numerous geographic regions and features. Contemporary RS studies address this challenge by employing deep learning (DL) models for specific datasets or features, which limits their applicability across contexts. The present research aims to overcome this limitation by introducing EcoMapper, a scalable solution to segment arbitrary features in VHR RS imagery. EcoMapper fully automates processing of geospatial data, DL model training, and inference. Models trained with EcoMapper successfully segmented two distinct features in a real-world UAV dataset, achieving scores competitive with prior studies which employed context-specific models. To evaluate EcoMapper, many additional models were trained on permutations of principal field survey characteristics (FSCs). A relationship was discovered allowing derivation of optimal ground sampling distance from feature size, termed Cording Index (CI). A comprehensive methodology for field surveys was developed to ensure DL methods can be applied effectively to collected data. The EcoMapper code accompanying this work is available at https://github.com/hcording/ecomapper .

遥感图像分割自动化建模深度学习地理信息

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