古地图复原与校正方法实验研究
作者简介:赵锴(1992-),女,硕士生,研究方向为地图学与地理信息系统、农业信息化。E-mail:zhaok.13s@igsnrr.ac.cn
收稿日期: 2015-06-01
要求修回日期: 2015-07-09
网络出版日期: 2016-01-10
基金资助
科技部基础性项目“《中国近代地图志》编研”项目(2012FY120200)
Research and Experiments on Repairing and Correction of Ancient Maps
Received date: 2015-06-01
Request revised date: 2015-07-09
Online published: 2016-01-10
Copyright
在中国古代地图绘制中,计里画方和山水形象画法是2个显著特色。然而,由于没有数学基础或没有明确的数学基础,使得地图定位精度大大降低,给古地图的处理和地理配准工作带来很大困难。本文将古地图的定位基准现状,分为完全没有地理参考、有部分地理参考和有较精确地理参考进行分析,从资料选取、预处理、辐射校正和图面信息复原角度探讨古地图的修复方法,并以部分近代地图为例进行地图拼接实验。最后,针对不同定位基准类型的古地图,分别采用特征点校正、分块(网格)匹配和相对位置转移等方法,完成古地图与现代地图的地理匹配,研究了计里画方地图与不同地理参考系、投影之间的数理关系。在古地图数字化、编辑、纠正和配准的基础上,尝试研究和建立校正后的古地图和现代地图的数理关系,探究古代舆图坐标基准和坐标体系与现代地图系统的关系,为建立古今坐标体系对照的数理关系打下基础。
赵锴 , 姜莉莉 . 古地图复原与校正方法实验研究[J]. 地球信息科学学报, 2016 , 18(1) : 21 -31 . DOI: 10.3724/SP.J.1047.2016.00021
The kilometer grid style and landscape painting style are two features of Chinese ancient maps. However, the positioning accuracy of ancient maps is very low due to the lack of a clear mathematical basis. It is difficult to apply map processing, map correction and geo-referencing on these ancient maps. This paper divides the current positioning datum of ancient maps into three types: one with no geo-reference, one with partial geo-reference, and one with definite geo-reference, and explores the map repairing methods from the following aspects: data selection, pre-processing, radiometric correction, and geographical information recovery. Besides, this paper takes some Chinese near modern maps as examples in several map matching experiments, adapts different spatial positioning methods, such as feature point correction, matching by grid, and relative position shift, to complete corrections between Chinese ancient maps and modern maps, and focuses on the mathematical relationship in the square grid maps and different geo-reference systems and projection systems. Finally, we try to establish the mathematical relationships between the corrected ancient maps and the accurate maps, and study the relationship between “six key points of mapping” and the modern coordinates system.
Tab. 1 Grades of different conditions of maps表1 地图品相级别 |
级别 | 描述 |
---|---|
十品 | 崭新、平整、无磨损、无折痕 |
九品 | 基本崭新,有自然磨损,有少数轻度折痕 |
八品 | 画面有不能除去的轻度污迹(如汗迹、锈迹等),四角微损 |
七品 | 中度磨损,页面较干净、平整,有个别字迹,但不能有明显的污迹 |
六品 | 失去大部分光泽,有明显的疤痕和角位受损,有明显的污迹补 |
五品及以下 | 除非罕见或作为资料备存,否则无收藏价值 |
Fig. 1 Conditions of different sizes and types of maps图1 不同幅面地图品相 |
Fig. 2 Geo-correction dataset图2 地理校正数据集合 |
Fig. 3 Pre-processing图3 预处理 |
Fig. 4 Radiometric correction图4 辐射校正 |
Fig. 5 Color matching图5 颜色匹配 |
Fig. 6 Registration points selection图6 配准点选取 |
Fig. 7 Map matching using kilometer grid (local maps)图7 方里网校正(局部图) |
Fig. 8 Map matching using kilometer grid (global maps)图8 方里网校正(全局图) |
Fig. 9 Matched complete geographical map of great Qing Dynasty图9 大清万年一统地理全图(局部拼接后) |
Fig. 10 Georeferenced map correction图10 有地理参考的地图的地理校正 |
Fig. 11 Corrected map of Qing Dynasty图11 大清帝国图的校正 |
Fig. 12 Kilometer girded map correction图12 计里画方地图校正 |
Fig. 13 Corrected geographical general map of Qing Dynasty图13 皇清地理总图校正 |
Fig. 14 Correction of maps represented by landscape painting图14 山水形象画法地图校正 |
The authors have declared that no competing interests exist.
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