| 数字栅格地图的制作 |
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| 引用本文： | 洪钢,张继贤,林宗坚.数字栅格地图的制作[J].测绘科学,2000,25(3):43-45,16. |
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| 作者姓名： | 洪钢 张继贤 林宗坚 |
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| 作者单位： | 中国测绘科学研究院,北京 |
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| 摘 要： | 阐述了数字栅格地图制作的技术流程 ,并对技术流程的关键技术问题作了详细的阐述。从方法上解决了扫描过程中因阈值选择不当而出现的断线、粘连现象 ,从原理上介绍了几何纠正。最后从方法上介绍了彩色数字栅格地图的色彩归一化。
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| 关 键 词： | 数字栅格地图 数字正射影像图 数字高程模型 格网纠正 数字线划图 彩色表 |
The Making of Digital Raster Graphic |
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| HONG Gang,ZHANG Ji xian,LIN Zong jian.The Making of Digital Raster Graphic[J].Science of Surveying and Mapping,2000,25(3):43-45,16. |
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| Authors: | HONG Gang ZHANG Ji xian LIN Zong jian |
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| Abstract: | This thesis describes the technology process of the digital raster graphic making, states the key problem of the technology process in great detail,gives the method to solve the line loss or adhere because of the inappropriate threshold during the map scanning, explains the principle of geometric rectification,and finally,tells us how to turn the color of color map into the stipulated one. |
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| Keywords: | digital raster graphic (DRG) digital ortho map(DOM) digital elevation model grid rectification digital line graphic(DLG) color table |
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