检测井壁图像上平面地质特征的改进霍夫变换

doi:10.11772/j.issn.1001-9081.2015.06.1726

计算机应用 ›› 2015, Vol. 35 ›› Issue (6): 1726-1729.DOI: 10.11772/j.issn.1001-9081.2015.06.1726

检测井壁图像上平面地质特征的改进霍夫变换

彭诚^1,2, 邹长春^1,2

1. 地下信息探测技术与仪器教育部重点实验室(中国地质大学(北京)), 北京 100083;
2. 中国地质大学(北京) 地球物理与信息技术学院, 北京 100083

收稿日期:2014-12-29 修回日期:2015-03-23 发布日期:2015-06-12
通讯作者: 邹长春(1969-),男,江西宜春人,教授,博士生导师,博士,主要研究方向:地球物理测井、岩石物理。zoucc@cugb.edu.cn
作者简介:彭诚(1991-),男,福建龙岩人,硕士研究生,主要研究方向:地球物理测井.
基金资助:
国家深部探测技术与实验研究专项(SinoProbe-05-07)。

Improved Hough transform to detect planar geologic features in borehole images

PENG Cheng^1,2, ZOU Changchun^1,2

1. Key Laboratory of Geo-detection, Ministry of Education (China University of Geosciences (Beijing)), Beijing 100083, China;
2. School of Geophysics and Information Technology, China University of Geosciences (Beijing), Beijing 100083, China

Received:2014-12-29 Revised:2015-03-23 Published:2015-06-12

摘要/Abstract

摘要：

为实现井壁图像上平面地质特征的自动提取,研究了图像中单周期正弦曲线的检测方法。提出一种改进的霍夫变换,该方法基于正弦曲线上的三个相关联点在二维累加器中进行投票,从而确定相位与基线深度;然后在一维累加器中投票,确定振幅。对模拟图像及井壁图像进行了处理,并与传统霍夫变换、快速霍夫变换进行了对比。结果表明,该方法不仅提高了检测速度,而且具有较高的准确率。

关键词: 霍夫变换, 正弦曲线, 成像测井, 自动检测, 裂缝

Abstract:

For the implementation of automatically extracting planar geologic features in borehole images, the methods of detecting single cycle sinusoidal curves in images were studied. An improved Hough transform were proposed. The proposed method voted in the two-dimensional accumulator based on three related points in the sinusoidal curve, to determine the phase and baseline depth. Then vote was performed in one-dimensional accumulator, to determine the amplitude. The simulated images and borehole images were processed. The proposed method was compared with the traditional Hough transform and fast Hough transform. The results show that the proposed method not only improves the detection efficiency, but also has high accuracy.

Key words: Hough transform, sinusoidal curve, imaging logs, automatic detection, fracture

中图分类号:

TP391

彭诚, 邹长春. 检测井壁图像上平面地质特征的改进霍夫变换[J]. 计算机应用, 2015, 35(6): 1726-1729.

PENG Cheng, ZOU Changchun. Improved Hough transform to detect planar geologic features in borehole images[J]. Journal of Computer Applications, 2015, 35(6): 1726-1729.

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检测井壁图像上平面地质特征的改进霍夫变换

Improved Hough transform to detect planar geologic features in borehole images

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