filtering operation短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 滤波运算 Through the analysis of the features of the runway object in aerial images, a new method for runway detection is proposed based on mathematics morphological filtering operation and reconstruction. 针对机场跑道目标的各种特性，提出一种基于数学形态学形态滤波和形态重构的机场跑道自动识别算法。 cnki