基于极化变换的点群综合几何质量评估  

Quality Assessment of Point Group Geometry Generalization with Polarization Transformation

作　　者：钱海忠[1] 武芳[1] 张琳琳[1] 陈波[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘学报》2005年第4期361-369,共9页Acta Geodaetica et Cartographica Sinica

基　　金：国家自然科学基金资助项目(40471115)

摘　　要：分析圆特性及其运用到点群综合质量评估中来的可行性,提出一种基于极化变换的点群几何质量评估方法。阐述极化变换整个过程。在点群特征点保持、整体性保持两个方面提出了量化的质量评估指标,以及指标的量化方式。对实例中得出的指标值进一步进行动态综合分析,概括出特征点保持率、聚类数量保持率、聚类轮廓保持率、点目标删除率等综合评价指标,用于进一步的质量评估。Analysing circle characters and the feasibility of using it to quality assessment of point group generalization, a new method of assessing point cluster geometry quality is developed based on the technique of polarization transformation. Thus the whole transformation process is expatiated on. In order to retain character of point group and integrality of point cluster, this paper puts forward the measure of quality assessment guideline, and the method of quantitating guideline. Furthermore, with analysing dynamically the guideline values, this paper gathers up the integral evaluation guideline such as characteristic point retain ratio, cluster quantity retain ratio, cluster outline retain ratio and point object deletion ratio etc, these guidelines are used to further quality assessment.

关 键 词：自动综合 极化变换 聚类 质量评估 

分 类 号：P208[天文地球—地图制图学与地理信息工程]