采用图像方法可以更加直观地对管道漏检测中的缺陷进行判断,但在图像数据的采集过程中噪声是不可避免的。采用二维经验模态分解(BE......

提出一种基于二维经验模态分解(BEMD)的Canny算子边缘检测算法,通过BEMD将图像分解成多层本征模函数,利用Canny算子对各分量进行边......

Due to the data acquired by most optical earth observation satellite such as IKONOS, QuickBird-2 and GF-1 consist of a p......