曲波变换在超声波成像图像分割中的应用

摘要

Ultrasonic imaging logging is not affected by the mud conductivity,fracture in the oil-base mud wells can be more accurately evaluated,has the characteristics that electric imaging logging cannot be replaced.Aiming at the problem of fracture identification under oil-based mud,the image segmentation of Ultrasonic imaging was carried out by using the Curvelet transformation.This method is more sensitive for image edge,can extract the edge of the high-frequency image,which has a certain effect on the image segmentation.%超声波成像测井由于不受泥浆导电性的影响,可对油基泥浆井的裂缝进行较准确评价,具有电成像测井不可替代的特点.针对油基泥浆下裂缝识别问题,选用具有各向异性的曲波变换对超声波成像进行了图像分割.此方法对于图像的边缘更为敏感,可以提取图像边缘信息,对图像分割有一定的作用.