A least squares-based method for adjusting the boundaries of area objects
A least squares-based method for adjusting the boundaries of area objects
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DOI：
10.14358/pers.71.2.189
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发表时间：
2005-02
影响因子：
1.3
通讯作者：
X. Tong;W. Shi;Dajie Liu
中科院分区：
文献类型：
--
作者：
X. Tong;W. Shi;Dajie Liu
在本文中，提出了一种基于最小二乘法的方法来调整区域对象的边界在GIS中，是专门为解决数字化和登记地块的面积之间的不一致。该方法的原理是以地块的登记面积大小为真值，调整数字化地块边界的几何位置。首先，通过合并以下两类约束条件来导出通用的面积调整模型：（a）属性约束：宗地的真实面积的大小，和（B）几何约束：例如，直线、直角和一定距离。其次，介绍了不同情况下的地块面积调整方法。第三，实施所提出的模型是用几个案例研究说明。应用结果和相应的分析表明，所提出的方法是能够保持数字化和注册的地块之间的一致性。本研究解决了土地/地籍信息系统开发中的一个关键问题，并已在上海等地的真实的世界地籍数据处理中得到应用。
In this paper a least squares-based method is proposed for adjusting the boundaries of area objects in a GIS that is designed particularly for solving inconsistencies between the areas of digitized and registered land parcels. The principle of this approach is taking the size of the registered area of a land parcel as its true value and to adjust the geometric position of the boundaries of the digitized parcel. First, a generic area adjustment model is derived by incorporating the following two categories of constraints: (a) attribute constraint: the size of the true area of the parcel, and (b) geometric constraints: such as, straight lines, right angles and certain distances. Second, the methods used to adjust the areas of the parcels for different cases are presented. Third, the implementation of the proposed model is illustrated using several case studies. The results of the application and the corresponding analysis demonstrate that the proposed approach is able to maintain a consistency between the areas of the digitized and registered parcels. This study has solved one of the most critical problems in developing a land/cadastral information system, and this solution has been adopted in the processing of real world cadastral data in Shanghai and other cities in China.