arXiv:2503.08290cs.CV2025-03被引 4

用地理坐标提升遥感图像分割泛化能力,轻量化且无需标注。

SegDesicNet: Lightweight Semantic Segmentation in Remote Sensing with Geo-Coordinate Embeddings for Domain Adaptation

  • 利用地球球面特性编码地理坐标,生成领域自适应损失。
  • 在FLAIR #1上提升约6% MIoU,参数量减少27%。
  • 适合需要跨区域部署的轻量级遥感分割场景。

语义分割对高分辨率遥感图像(HRSIs)分析至关重要,可实现像素级对象与区域精确分类。然而,地理环境、天气等因素导致数据差异大,现有模型泛化能力受限,且依赖专家标注与专用设备。本文提出一种新型无监督域适应方法,利用遥感数据中天然存在的地理坐标作为元数据。通过结合位置编码与地球球面特性,设计SegDesicNet模块,将地理坐标投影至单位球面并回归网格位置编码,生成领域损失。实验表明,该方法在公开的FLAIR #1数据集多个子集上,平均交并比(MIoU)提升约6%,参数量减少约27%;在自定义划分的ISPRS Potsdam数据集上也表现优异。该算法旨在缩小神经网络与人类对物理世界的认知差距,推动技术更贴近人类、更具可扩展性。

原文摘要 · Abstract (English)

Semantic segmentation is essential for analyzing highdefinition remote sensing images (HRSIs) because it allows the precise classification of objects and regions at the pixel level. However, remote sensing data present challenges owing to geographical location, weather, and environmental variations, making it difficult for semantic segmentation models to generalize across diverse scenarios. Existing methods are often limited to specific data domains and require expert annotators and specialized equipment for semantic labeling. In this study, we propose a novel unsupervised domain adaptation technique for remote sensing semantic segmentation by utilizing geographical coordinates that are readily accessible in remote sensing setups as metadata in a dataset. To bridge the domain gap, we propose a novel approach that considers the combination of an imageś location encoding trait and the spherical nature of Earthś surface. Our proposed SegDesicNet module regresses the GRID positional encoding of the geo coordinates projected over the unit sphere to obtain the domain loss. Our experimental results demonstrate that the proposed SegDesicNet outperforms state of the art domain adaptation methods in remote sensing image segmentation, achieving an improvement of approximately ~6% in the mean intersection over union (MIoU) with a ~ 27\% drop in parameter count on benchmarked subsets of the publicly available FLAIR #1 dataset. We also benchmarked our method performance on the custom split of the ISPRS Potsdam dataset. Our algorithm seeks to reduce the modeling disparity between artificial neural networks and human comprehension of the physical world, making the technology more human centric and scalable.

遥感分割域适应轻量化地理编码

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。