有限密度采样在直线边界检测中的精度分析

The Precision Analyse for the Limited Density Sampling in the Measuring Linear Borderline

对有限密度数据采样进行了分析 .提出了在有限密度采样下提高对直线边界的检测精度的方法以及有限密度数据采样网所能达到的最高精度 .建立了分辨谱图和分辨图 ,说明了有限密度采样间隔对分辨力的影响 ,以及如何避开分辨盲区以达到较高的直线边界检测精度 .

The limited density data sampling is analyzed. A method of enhancing the precision of linear borderline measurement is proposed, and the highest precision that the limited density data sampling can reach is discussed. The resolving spectrum map and resolving map are established. The effect of limited density sampling interval on the resolving power is explained. Some useful advices to avoid resolving blind area in the map and then reach a high precise measurement are also given. At last, how to improve the precision of other types of borderline measurements are discussed.