高分辨率遥感数据在城市绿化调查中的应用

高分辨率卫星遥感技术与传统航空遥感技术比较，具有获取数据周期短，工作量小，投入资金少的特点，作者以岳阳市岳阳楼区为试验区，运用其优势对城市园林的绿化进行了调查。首先，对该区的高分辨率遥感数据进行最佳波段选择(OIF值计算)、几何变换、地理坐标校正、线性拉伸、边缘增强、融合等处理，然后经过绿地目标信息特征分析，建立绿地解译标志，在时间、资金、人力投入较少的情况下，成功的完成了预期的目标，为遥感技术在城市园林绿化调查中的应用开拓了新领域。

Application of High Resolution Satellite Remote Sensing Data To Investigation of Urban Afforestation

The paper discusses the general procedures by which IKONOS remote sensing data are applied to the investigation of urban afforestation. Based on an analysis of data-acquisition methods, costs, techniques and equipment conditions of some high resolution satellites such as SPOT-5, IKONOS and QUICKBIRD, the authors conducted researches into the investigation of urban afforestation with remote-sensing data, summarized the spectral characteristics of different types of land cover, analyzed the spectral characteristics of merged images, and established the interpretation signatures of garden and forestation, exploiting new areas of the use of remote sensing techniques in the investigation of urban afforestation.