【摘要】 在西藏墨脱公路断裂构造的遥感勘察中,以Landsat-7 ETM+卫星影像为信息源,以ENVI 4.0软件为图像处理平台,运用数据集成、图像融合、主成分分析及方向滤波等图像处理技术对断裂构造信息进行增强处理;以基于地学知识的遥感构造分析技术对南迦巴瓦峰地区的断裂构造特征进行全面解译和识别,并在ArcG IS 8.2的支持下进行断裂构造专题制图及信息提取,查明了公路方案线区域内断裂构造的分布及发育特征,为墨脱公路工程线路方案选择、工程地质条件评价提供了科学依据。更多还原

【Abstract】 By means of digital image processing techniques of data integration,image fusion,principal component analysis and directional filter with landsat-7 ETM~+ image under the image processing platform of ENVI 4.0 software,the authors successfully enhanced the information of faults in the remote sensing survey of fault structures along Motuo highway in Tibet.With technologies of structure analysis based on geological knowledge,information extraction and thematic mapping supported by ArcGIS 8.2 software,faults in Namjagbarwa region were recognized and interpreted completely,and their features and distribution along the highway route were detected.The results have provided enough scientific evidence for selecting the highway route and evaluating engineering geological conditions.更多还原