土地执法监察中的高分辨率遥感及变化检测技术

土地执法监察是国土资源管理业务体系的重要内容之一。当前土地执法监察工作多以传统手工作业为主,工作效率需要提升。随着高空间分辨率遥感技术的发展,借助高分辨率遥感影像实施准确、快速的土地执法监察成为可能。本文在分析实际应用需求和最新技术发展的基础上,以国产高分辨率影像提取违法建设用地为出发点,选取浙江省台州市黄岩区为研究区,开展县区级土地执法监察应用研究。借助面向对象变化检测与建设用地提取等技术获取了疑似的违法新增建设用地,取得了较好的应用效果,为挖掘国产高分辨率卫星影像在土地执法监察应用方面的潜力提供了参考。

The Application of High-resolution Remote Sensing and Change Detection Technologies in Law Enforcement and Supervision of Land Resources

Law enforcement and supervision of land resources are important components in the land resources management systems. Their current way of working is mainly manipulated by the traditional manual operation, which is not efficient in performance. With the launch of high-spatial-resolution remote sensing satellites, the application of details contained within these received images makes it possible to accurately and rapidly enforce the law and supervise the land resources with the adoption of remote sensing technology. Therefore, in order to analyze the actual requirements of the applications and the latest technological developments, this paper intends to extract the illegal construction land information using the high-spatial-resolution remote sensing images, and we choose the Huangyan district to be the demonstration area to carry out the county-level law enforcement and to implement proper supervision to land resources. We have extracted the suspected illegal build-up construction sites using the change detection and urban extraction technologies. The experiment achieves a good result and demonstrates the significant potentials of domestic high-spatial-resolution satellite in the practical applications of law enforcement and supervision of land resources.