The Research of Ellipse Parameter Fitting Algorithm of Ultrasonic Imaging Logging in the Casing Hole  

作　　者：Jihui Tu Bin Yang 

机构地区：[1]Electronic Information Engineering School of HEBI College of Vocation and Technology, Henan, China [2]Electronics & Information School of Yangtze University, Jingzhou, China

出　　处：《Applied Mathematics》2014年第8期1317-1321,共5页应用数学（英文）

摘　　要：In order to estimate intensity and direction of pressure acted on oil well in horizontal, this paper proposes an algorithm of ellipse fitting based on least square method for sections of oil well with ultrasonic imaging logging data. Five parameters about ellipse corresponding to the sections of oil well are extracted and their geometry deformations and direction are estimated. The tested results show that the fitting algorithm is robust and the estimating error of parameter is small, which have very important practical significance on processing the well logging.In order to estimate intensity and direction of pressure acted on oil well in horizontal, this paper proposes an algorithm of ellipse fitting based on least square method for sections of oil well with ultrasonic imaging logging data. Five parameters about ellipse corresponding to the sections of oil well are extracted and their geometry deformations and direction are estimated. The tested results show that the fitting algorithm is robust and the estimating error of parameter is small, which have very important practical significance on processing the well logging.

关 键 词：BHTV ELLIPSE FITTING Image Correction Tool ECCENTRICITY 

分 类 号：O1[理学—数学]