| 森林资源二类空间数据数字化误差分析及校正 |
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| 引用本文： | 黄水生,唐小明,李志清,刘鹏举,谢阳生,侯瑞霞. 森林资源二类空间数据数字化误差分析及校正[J]. 林业科学, 2006, 42(Z1): 146-150 |
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| 作者姓名： | 黄水生 唐小明 李志清 刘鹏举 谢阳生 侯瑞霞 |
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| 作者单位： | 中国林业科学研究院资源信息研究所,北京,100091 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 根据森林资源二类空间数据数字化的过程探讨其误差的来源,提出森林资源二类空间数据生产中质量控制和误差校正的方法.通过自动选取控制点和对控制点按图幅构造不规则三角网建立图面坐标与实际坐标的对应关系,对森林资源二类调查空间数据校正,提高森林资源二类调查空间数据的精度和校正效率.依据此方法对福建森林资源空间数据校正,消除了空间数据的整体误差.
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| 关 键 词： | 数字林业 森林资源 误差 校正 空间数据 |
| 文章编号： | 1001-7488(2006)增1-0146-05 |
| 修稿时间： | 2005-06-24 |
Error Analysis and Rectification in Spatial Data of Forest Resource by Designing Survey |
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| Huang Shuisheng,Tang Xiaoming,Li Zhiqing,Liu Pengju,Xie Yangsheng,Hou Ruixia. Error Analysis and Rectification in Spatial Data of Forest Resource by Designing Survey[J]. Scientia Silvae Sinicae, 2006, 42(Z1): 146-150 |
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| Authors: | Huang Shuisheng Tang Xiaoming Li Zhiqing Liu Pengju Xie Yangsheng Hou Ruixia |
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| Abstract: | According to the digitizing procedure of spatial data of forest resources by designing survey,the causes of spatial data error was analyzed in detail and some suggestions were put forward to guarantee the precision of spatial data. The methods of collecting control points and transforming the spatial data to rectify error were also introduced. By selecting control points of all data automatically and making the relationship between the coordination of map and actual coordination by construct triangular irregular network (TIN) for every standard map,the accuracy of data and the work efficiency of transforming was improved. This method had been adopted in the rectification of the spatial data of forest resources by designing survey in Fujian Province and achieved a reasonable result. |
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| Keywords: | digital forestry forest resources error rectification spatial data |
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