道路曲线数字化数据的联合平差模型

童小华; 刘大杰

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道路曲线数字化数据的联合平差模型

童小华, 刘大杰

文章导航 > 武汉大学学报 ● 信息科学版 > 2001 > 26(1): 64-69

童小华, 刘大杰. 道路曲线数字化数据的联合平差模型[J]. 武汉大学学报 ● 信息科学版, 2001, 26(1): 64-69.

引用本文:

童小华, 刘大杰. 道路曲线数字化数据的联合平差模型[J]. 武汉大学学报 ● 信息科学版, 2001, 26(1): 64-69.

TONG Xiaohua, LIU Dajie. Combined Adjustment Models of Road Curve Digitization in GIS[J]. Geomatics and Information Science of Wuhan University, 2001, 26(1): 64-69.

Citation:

TONG Xiaohua, LIU Dajie. Combined Adjustment Models of Road Curve Digitization in GIS[J]. Geomatics and Information Science of Wuhan University, 2001, 26(1): 64-69.

道路曲线数字化数据的联合平差模型

童小华¹,
刘大杰²

1 武汉大学测绘遥感信息工程国家重点实验室, 武汉市珞喻路129号, 430079;
2 同济大学测量与国土信息工程系, 上海市四平路1239号, 200092

基金项目: 高等学校重点实验室访问学者基金资助项目(00112);国家自然科学基金资助项目(49671065)

详细信息

作者简介:
童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

中图分类号: P207;P208

Combined Adjustment Models of Road Curve Digitization in GIS

TONG Xiaohua¹,
LIU Dajie²

1 National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;
2 Department of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai, China, 200092

摘要: 在讨论道路曲线基本单元数字化数据处理模型的基础上,进一步建立了道路曲线的联合平差模型,探讨了以线形为特征的交通运输空间数据的平差处理方法,提出了评价道路曲线数字化的精度指标。这些工作为研究交通空间数据的质量和建立动态分段模型以及道路GIS空间基础数据库是有益的。
- GIS /
- 道路曲线 /
- 地图数字化 /
- 联合平差 /
- 质量控制
Abstract: The accuracy and quality of spatial data are one of the fundamental issues in geographic information system(GIS) and geographic information system for transportation(GIS-T).Since the manual digitization is still one of the major methods for capturing the spatial data,error-processing models for the road curves from manual digitization are discussed in this paper.The road curves as the fundamental forms of the road spatial data are composed of regular geometric curves with vigorous mathematics expressions,therefore,it is pertinent to use parametric adjustment approaches to establish error processing models for the digitized road curves.By using least square theory,the parametric adjustment models including error equations and the calculations of parameter approximate values are first derived for the basic geometric features-straight lines,circular curves and transition curves that constitute the road curve alignments.The combined adjustment models based on those of basic geometric features are then presented for the road curve obtaining from manual map digitization.Therefore,the system parameters determining the whole road alignments are resolved simultaneously,and the indicators estimating the accuracy of digitized curve features are obtained as well.In the practical situation,the road curves are usually digitized from piece to piece,therefore,the practical adjustment models are further derived to process integrally the segmentally digitized road curves.Case studies are presented to illustrate the application of the models in the adjustment of a stretch of digitized road curve composed of the basic geometric features. By using developed models and methods for digitized road curve adjustment,the error influences on the road curve digitization are minimized and the accuracy of the digitized road curves is improved.The accuracy of the digitized road curve features is estimated with road curve adjustment method,as provides the quality indicators for the spatial databases of GIS-T.On the other hand,the system parameters of the digitized road curves obtained by using the developed models are very close to those of the designed road curves,as is the blocks for further development of the datum-based linear referencing system and geometric curve feature-oriented dynamic segmentation model for GIS-T.
- GIS /
- road curve features /
- map digitization /
- combined adjustment /
- quality control

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[3]	汤仲安, 史文中. 矢量GIS平面一般曲线等概率密度误差模型 . 武汉大学学报 ● 信息科学版, 2007, 32(1): 85-89.
[4]	曾衍伟, 龚健雅. 空间数据质量控制与评价方法及实现技术 . 武汉大学学报 ● 信息科学版, 2004, 29(8): 686-690.
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[9]	余晓红. 地图数字化数据处理的相关平差与精度分析 . 武汉大学学报 ● 信息科学版, 2003, 28(5): 555-558.
[10]	胡鹏, 杨传勇, 胡海, 李圣权. GIS的基本理论问题——地图代数的空间观 . 武汉大学学报 ● 信息科学版, 2002, 27(6): 616-621.
[11]	童小华, 刘大杰, 彭明华. 地籍宗地面积处理的原理与方法 . 武汉大学学报 ● 信息科学版, 2001, 26(2): 105-111.
[12]	刘大杰, 刘春. GIS数字产品质量抽样检验方案探讨 . 武汉大学学报 ● 信息科学版, 2000, 25(4): 348-352,361.
[13]	童小华, 史文中, 刘大杰. GIS中数字化数据误差的分布检验与处理 . 武汉大学学报 ● 信息科学版, 2000, 25(1): 79-84.
[14]	许妙忠, 朱宜萱. 大型木造建筑物的计算机仿真和质量控制 . 武汉大学学报 ● 信息科学版, 1999, 24(1): 28-31.
[15]	张保钢, 朱凌, 朱光. GIS中位置信息的通用数据质量模型及其质量控制 . 武汉大学学报 ● 信息科学版, 1999, 24(2): 134-137,141.
[16]	刘大杰, 孟晓林. 直角与直线元素数字化的数据处理 . 武汉大学学报 ● 信息科学版, 1997, 22(2): 125-128.
[17]	黄波. GIS与ES的结合及其在控制性规划管理中的应用 . 武汉大学学报 ● 信息科学版, 1995, 20(1): 35-39.
[18]	杜清运, 毋河海. 微机地图图形工作站上地图数字化子系统的设计与实现 . 武汉大学学报 ● 信息科学版, 1993, 18(4): 20-28.
[19]	单杰, 李德仁. 摄影测量与大地测量观测值联合平差的质量分析 . 武汉大学学报 ● 信息科学版, 1990, 15(4): 6-15.
[20]	周忠谟, 晁定波. GPS空间基线向量网与地面控制网的联合平差模型 . 武汉大学学报 ● 信息科学版, 1987, 12(2): 20-28.

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道路曲线数字化数据的联合平差模型

童小华¹,
刘大杰²

1 武汉大学测绘遥感信息工程国家重点实验室, 武汉市珞喻路129号, 430079;

2 同济大学测量与国土信息工程系, 上海市四平路1239号, 200092

基金项目: 高等学校重点实验室访问学者基金资助项目(00112);国家自然科学基金资助项目(49671065)

作者简介:
童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

收稿日期: 2000-08-10
刊出日期: 2001-01-05

中图分类号: P207;P208

关键词:

GIS /

摘要: 在讨论道路曲线基本单元数字化数据处理模型的基础上,进一步建立了道路曲线的联合平差模型,探讨了以线形为特征的交通运输空间数据的平差处理方法,提出了评价道路曲线数字化的精度指标。这些工作为研究交通空间数据的质量和建立动态分段模型以及道路GIS空间基础数据库是有益的。

English Abstract

Combined Adjustment Models of Road Curve Digitization in GIS

TONG Xiaohua¹,
LIU Dajie²

1 National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;

2 Department of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai, China, 200092

Received Date: 2000-08-10
Publish Date: 2001-01-05

Keywords:

Abstract: The accuracy and quality of spatial data are one of the fundamental issues in geographic information system(GIS) and geographic information system for transportation(GIS-T).Since the manual digitization is still one of the major methods for capturing the spatial data,error-processing models for the road curves from manual digitization are discussed in this paper.The road curves as the fundamental forms of the road spatial data are composed of regular geometric curves with vigorous mathematics expressions,therefore,it is pertinent to use parametric adjustment approaches to establish error processing models for the digitized road curves.By using least square theory,the parametric adjustment models including error equations and the calculations of parameter approximate values are first derived for the basic geometric features-straight lines,circular curves and transition curves that constitute the road curve alignments.The combined adjustment models based on those of basic geometric features are then presented for the road curve obtaining from manual map digitization.Therefore,the system parameters determining the whole road alignments are resolved simultaneously,and the indicators estimating the accuracy of digitized curve features are obtained as well.In the practical situation,the road curves are usually digitized from piece to piece,therefore,the practical adjustment models are further derived to process integrally the segmentally digitized road curves.Case studies are presented to illustrate the application of the models in the adjustment of a stretch of digitized road curve composed of the basic geometric features. By using developed models and methods for digitized road curve adjustment,the error influences on the road curve digitization are minimized and the accuracy of the digitized road curves is improved.The accuracy of the digitized road curve features is estimated with road curve adjustment method,as provides the quality indicators for the spatial databases of GIS-T.On the other hand,the system parameters of the digitized road curves obtained by using the developed models are very close to those of the designed road curves,as is the blocks for further development of the datum-based linear referencing system and geometric curve feature-oriented dynamic segmentation model for GIS-T.

童小华, 刘大杰. 道路曲线数字化数据的联合平差模型[J]. 武汉大学学报 ● 信息科学版, 2001, 26(1): 64-69.

引用本文:

童小华, 刘大杰. 道路曲线数字化数据的联合平差模型[J]. 武汉大学学报 ● 信息科学版, 2001, 26(1): 64-69.

TONG Xiaohua, LIU Dajie. Combined Adjustment Models of Road Curve Digitization in GIS[J]. Geomatics and Information Science of Wuhan University, 2001, 26(1): 64-69.

Citation:

TONG Xiaohua, LIU Dajie. Combined Adjustment Models of Road Curve Digitization in GIS[J]. Geomatics and Information Science of Wuhan University, 2001, 26(1): 64-69.

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道路曲线数字化数据的联合平差模型

作者简介: 童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

Combined Adjustment Models of Road Curve Digitization in GIS

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出版历程

道路曲线数字化数据的联合平差模型

1 武汉大学测绘遥感信息工程国家重点实验室, 武汉市珞喻路129号, 430079; 2 同济大学测量与国土信息工程系, 上海市四平路1239号, 200092

作者简介: 童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

English Abstract

Combined Adjustment Models of Road Curve Digitization in GIS

1 National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079; 2 Department of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai, China, 200092

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作者简介:
童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

1 武汉大学测绘遥感信息工程国家重点实验室, 武汉市珞喻路129号, 430079;

2 同济大学测量与国土信息工程系, 上海市四平路1239号, 200092

作者简介:
童小华,博士,讲师,现从事误差分析与处理、GIS数据质量控制等研究。代表成果:GIS中数字化数据误差的分布检验与处理等。E-mail:xhtong@celiang.tongji.edu.cn

1 National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;

2 Department of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai, China, 200092