摘要
受遥感影像几何形变影响与应用需求,遥感影像中常会出现一些像元取值为无效值的无效区域,因而遥感影像有效像元覆盖范围提取是遥感影像生产与应用中常见的问题。本文提出了一种快速探测边界的有效像元覆盖范围提取方法。实验表明本文算法能够准确高效提取遥感影像有效像元覆盖范围,且适用于大数据量遥感影像。
Considering the geometric distortions and diverse applications in remote sensing,invalid areas,characterized by invalid pixel values,may manifest themselves in such imagery.Consequently,the extraction of valid pixel coverage range in remote sensing imagery poses a common challenge in both remote sensing image production and application.To cope with this issue,a novel method,which enables fast and extraction of valid pixel coverage range by detecting boundaries,is proposed in this paper.The experimental results confirm the accuracy,efficiency,and suitability of the proposed algorithm in extracting valid pixel coverage range in remote sensing imagery,also demonstrating its compatibility with large datasets of remote sensing imagery.
作者
李冠达
Li Guanda(Third Institute of Photography and Remote Sensing,MNR,Chengdu,China;Technology Innovation Center for Remote Sensing Monitoring of Natural Resources in Southwest China Mountains,MNR,Chengdu,China)
出处
《科学技术创新》
2023年第21期23-26,共4页
Scientific and Technological Innovation
基金
四川省科技计划重点研发项目《国土空间规划三维智能管控关键技术研究与应用示范》2022YFS0449
四川省自然资源科研项目《三维场景下国土空间规划智能管控关键技术研究》Ki-2022-(3)。
关键词
遥感影像
有效像元
覆盖范围
矢量化
remote sensing image
valid pixel
coverage range
vectorization
