| 栅格地图数据的现势性检查 |
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| 引用本文： | 何乔,赵泳,郭海涛.栅格地图数据的现势性检查[J].海洋测绘,2006,26(1):57-59. |
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| 作者姓名： | 何乔 赵泳 郭海涛 |
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| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | 鉴于全自动的栅格地图数据现势性检查受到自动特征提取技术的可靠性和准确性不高以及提取速度较慢等因素的限制,使得不能满足生产作业的需求。采用像素数的变化比率的方法来实现半自动栅格地图数据的现势性检查。实验证明该方法是可行的。
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| 关 键 词： | 数字地图 栅格数据 现势性检查 像素变化率 |
| 文章编号： | 1671-3044（2006）01-0057-03 |
| 收稿时间： | 2005-08-12 |
| 修稿时间： | 2005-09-30 |
The Currency Check of Raster Graphic Data |
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| HE Qiao,ZHAO Yong,GUO Hai-tao.The Currency Check of Raster Graphic Data[J].Hydrographic Surveying and Charting,2006,26(1):57-59. |
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| Authors: | HE Qiao ZHAO Yong GUO Hai-tao |
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| Institution: | Institute of Surveying and Mapping,Information Engineering University ,Zhengzhou, Henan ,450052 |
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| Abstract: | For the limit of the effect of the automatic feature extraction which is in low reliability,accuracy and velocity,the automatic currency check of raster graphic data can not satisfy the requirement of production and operation.So,this article uses the change ratio of the pixel number to realize the automatic currency check of raster graphic data.The experiment shows this method is feasible. |
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| Keywords: | digital map raster data currency check change ratio of pixel |
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