多源多时相遥感数据面向对象海岛识别方法探讨

遥感技术在新一轮全国海岛调查中得到广泛而深入的应用。针对目视解译方法的不足,采用面向对象的自动分类方法实施海岛专题信息提取。对多源多级遥感图像数据和多时相高分辨率光学图像数据,分别采取了不同的小目标识别与伪信息剔除策略。实验结果表明,不论融合高分辨率雷达图像数据与多光谱光学图像数据,还是直接利用多时相高分辨率光学图像数据,面向对象的自动分类方法均能够达到较高的海岛识别能力与识别精度。

A Discussion on an Object-oriented Approach to Island Recognition Based on Multi-source and Multi-temporal Remotely Sensed Data

Remote sensing technology has found a wide range of applications in the new round of national island investigation.On account of the deficiency of visual interpretation,the object-oriented approach was adopted in this paper to extract island thematic information.For multi-source,multi-resolution data and multi-temporal high resolution optical data,different strategies were adopted to detect small objects and eliminate false information.The experiment results show that the proposed methods give a fine perfor...