利用地貌形态相似性评估外版海图水深质量
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摘要
为检验评估外版海图水深表达海底地形的准确性,利用外版海图和参照数据的水深分别构建Delaunay三角网,对海底特征地貌形态进行提取,设计了位置、表面积、体积相似度指标,对外版海图和参照数据表达同一处特征地貌的相似程度进行了量化。实验结果表明:所提方法可以有效提取海底地形中的特征地貌,所提相似度指标可以较为合理地反映外版海图和参照数据表达同一处特征地貌的相似程度,可为把握外版海图水深表达海底地貌的准确性、进而定量评估其质量提供参考依据,克服了传统经验方法只能进行定性评估分析的不足。
In order to quantitatively evaluate Depths′ topographic expression accuracy of foreign charts',submarine feature topographies in foreign charts and reference charts are extracted by constructing Delaunay triangulations.Similarity indices of position,surface and volume are put forward to calculate the similarities of the same submarine feature topographies from foreign charts and reference charts.Experimental results show that this method can effectively extract submarine feature topographies from charts,the similarity indices can reasonably reflect the similarity of the same feature objects between foreign charts and reference charts.This method can provide references for quantitatively grasping the description accuracy for submarine topographies and quality evaluation of depths in foreign charts,which overcomes the shortcomings of traditional empirical evaluating methods.
In order to quantitatively evaluate Depths′ topographic expression accuracy of foreign charts',submarine feature topographies in foreign charts and reference charts are extracted by constructing Delaunay triangulations.Similarity indices of position,surface and volume are put forward to calculate the similarities of the same submarine feature topographies from foreign charts and reference charts.Experimental results show that this method can effectively extract submarine feature topographies from charts,the similarity indices can reasonably reflect the similarity of the same feature objects between foreign charts and reference charts.This method can provide references for quantitatively grasping the description accuracy for submarine topographies and quality evaluation of depths in foreign charts,which overcomes the shortcomings of traditional empirical evaluating methods.
引文
[1] 张立华,李改肖,郑义东,等.海图制图综合[M].北京:国防工业出版社,2017.
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[3] 贾帅东,张立华,彭认灿,等.确保水深模型航海安全性的深度保证率控制方法[J].交通运输工程学报,2015,15(5):101-109.
[4] GB 12320-1998.中国航海图编绘规范[S].北京:中国标准出版社,1999.
[5] 李树军,陈惠荣,郑义东,等.海图编辑设计[M].大连:海军大连舰艇学院,2014.
[6] 张立华,贾帅东,王涛,等.深度保证率和表达度指标的定义及评估方法[J].武汉大学学报:信息科学版,2015,40(5):695-700.
[7] 李志林,朱庆.数字高程模型[M].武汉:武汉大学出版社,2012.
[8] 周启鸣,刘学军.数字地形分析[M].北京:科学出版社,2006.
[9] 刘颖,翟京生,陆毅,等数字海图水深注记的自动综合研究[J].测绘学报,2005,34(2):179-184.
[10] 宋占峰,蒲浩,詹振炎.快速构建Delaunay三角网算法研究[J].铁道学报,2001,23(5):85-91.
[11] 胡金星,潘懋,马照亭,等.高效构建Delaunay三角网数字地形模型算法研究[J].北京大学学报:自然科学版,2003,39(5):736-741.
[12] 叶久长,刘家伟.海道测量学[M].北京:海潮出版社,1993.
[13] 郝燕玲,唐文静,赵玉新,等.基于空间相似性的面实体匹配算法研究[J].测绘学报,2008,37(4):501-506.
[14] 刘涛,杜清运,闫浩文.空间点群目标相似度计算[J].武汉大学学报:信息科学版,2011,36(10):1149-1153.
[15] SAMAL A,SETH S,CUETO K.A Feature-based Approach to Conflation of Geospatial Sources[J].International Journal of Geographical Information Science,2004,18(5):459- 489.
[2] 张立华,贾帅东,元建胜,等.一种基于不确定度的水深控浅方法[J].测绘学报,2012,41(2):184-190.
[3] 贾帅东,张立华,彭认灿,等.确保水深模型航海安全性的深度保证率控制方法[J].交通运输工程学报,2015,15(5):101-109.
[4] GB 12320-1998.中国航海图编绘规范[S].北京:中国标准出版社,1999.
[5] 李树军,陈惠荣,郑义东,等.海图编辑设计[M].大连:海军大连舰艇学院,2014.
[6] 张立华,贾帅东,王涛,等.深度保证率和表达度指标的定义及评估方法[J].武汉大学学报:信息科学版,2015,40(5):695-700.
[7] 李志林,朱庆.数字高程模型[M].武汉:武汉大学出版社,2012.
[8] 周启鸣,刘学军.数字地形分析[M].北京:科学出版社,2006.
[9] 刘颖,翟京生,陆毅,等数字海图水深注记的自动综合研究[J].测绘学报,2005,34(2):179-184.
[10] 宋占峰,蒲浩,詹振炎.快速构建Delaunay三角网算法研究[J].铁道学报,2001,23(5):85-91.
[11] 胡金星,潘懋,马照亭,等.高效构建Delaunay三角网数字地形模型算法研究[J].北京大学学报:自然科学版,2003,39(5):736-741.
[12] 叶久长,刘家伟.海道测量学[M].北京:海潮出版社,1993.
[13] 郝燕玲,唐文静,赵玉新,等.基于空间相似性的面实体匹配算法研究[J].测绘学报,2008,37(4):501-506.
[14] 刘涛,杜清运,闫浩文.空间点群目标相似度计算[J].武汉大学学报:信息科学版,2011,36(10):1149-1153.
[15] SAMAL A,SETH S,CUETO K.A Feature-based Approach to Conflation of Geospatial Sources[J].International Journal of Geographical Information Science,2004,18(5):459- 489.