以Qu ick B ird全色和多光谱影像为数据源,通过波段组合、HIS变换融合使处理后图像达到分辨率高而且接近真彩色,具有良好的识别效果;利用野外采集的6个高精度的GPS地面控制点对影像进行二次多项式几何精校正;利用校正后的影像对东大滩...以Qu ick B ird全色和多光谱影像为数据源,通过波段组合、HIS变换融合使处理后图像达到分辨率高而且接近真彩色,具有良好的识别效果;利用野外采集的6个高精度的GPS地面控制点对影像进行二次多项式几何精校正;利用校正后的影像对东大滩地表破裂带进行了应用性研究,结果表明:在空气稀薄、气候寒冷、野外考察条件极其艰苦的东大滩,通过0.61 m分辨率的Qu ick B ird影像可以较形象、直观、真实地反映东大滩破裂带的几何特征和形态特征。展开更多
与线划图相比,遥感影像正射图有很多线划图无法比拟的优点,因此它在城市规划、土地管理、铁路、公路选线等方面有着特殊的应用。以某市Qu ick B ird遥感数据为例,介绍了从原始卫星影像图的收集到在ERDAS遥感图像处理软件中进行遥感影像...与线划图相比,遥感影像正射图有很多线划图无法比拟的优点,因此它在城市规划、土地管理、铁路、公路选线等方面有着特殊的应用。以某市Qu ick B ird遥感数据为例,介绍了从原始卫星影像图的收集到在ERDAS遥感图像处理软件中进行遥感影像正射图制作的方法和步骤。描述了正射影像图制作中的融合、纠正等的流程及原理。实践证明遥感卫星数据时效性好、覆盖范围大、成本相对低廉。因此利用商业化的遥感图像处理软件直接对遥感卫星图像产品进行正射纠正,继而制作系列正射影像图,是一条效果良好的技术路线。展开更多
Urban large-scale topographical maps can be renewed by means of overlapping the original digital line graph (DLG) and up-to-date remote sensitive images which have high precision and have been orthographically rectifi...Urban large-scale topographical maps can be renewed by means of overlapping the original digital line graph (DLG) and up-to-date remote sensitive images which have high precision and have been orthographically rectified precisely. Quick Bird panchromatic remote sensing image is used and an urban area with even terrain and dense buildings is selected as experimental area. Ground control points (GCPs) are selected on a new 1∶500 topographical map and multinomial model is applied for rectification. After rectification the absolute positional error of a single point of the image is less than 1m, therefore this method is suitable for renewing topographical maps of up to (1∶2 000) scale.展开更多
文摘以Qu ick B ird全色和多光谱影像为数据源,通过波段组合、HIS变换融合使处理后图像达到分辨率高而且接近真彩色,具有良好的识别效果;利用野外采集的6个高精度的GPS地面控制点对影像进行二次多项式几何精校正;利用校正后的影像对东大滩地表破裂带进行了应用性研究,结果表明:在空气稀薄、气候寒冷、野外考察条件极其艰苦的东大滩,通过0.61 m分辨率的Qu ick B ird影像可以较形象、直观、真实地反映东大滩破裂带的几何特征和形态特征。
文摘与线划图相比,遥感影像正射图有很多线划图无法比拟的优点,因此它在城市规划、土地管理、铁路、公路选线等方面有着特殊的应用。以某市Qu ick B ird遥感数据为例,介绍了从原始卫星影像图的收集到在ERDAS遥感图像处理软件中进行遥感影像正射图制作的方法和步骤。描述了正射影像图制作中的融合、纠正等的流程及原理。实践证明遥感卫星数据时效性好、覆盖范围大、成本相对低廉。因此利用商业化的遥感图像处理软件直接对遥感卫星图像产品进行正射纠正,继而制作系列正射影像图,是一条效果良好的技术路线。
文摘Urban large-scale topographical maps can be renewed by means of overlapping the original digital line graph (DLG) and up-to-date remote sensitive images which have high precision and have been orthographically rectified precisely. Quick Bird panchromatic remote sensing image is used and an urban area with even terrain and dense buildings is selected as experimental area. Ground control points (GCPs) are selected on a new 1∶500 topographical map and multinomial model is applied for rectification. After rectification the absolute positional error of a single point of the image is less than 1m, therefore this method is suitable for renewing topographical maps of up to (1∶2 000) scale.
