Edge enhancement of potential field data using the enhanced gradient (EG) filter

被引：5

作者：

Toktay, Hazel Deniz ^{[1
]}

Prasad, Korimilli Naga Durga ^{[2
]}

Alvandi, Ahmad ^{[3
]}

机构：

[1] Istanbul Univ Cerrahpasa, Fac Engn, Dept Geophys Engn, Buyukcekmece Campus, Istanbul, Turkiye

[2] Natl Geophys Res Inst, CSIR, Grav & Magnet Studies Grp, Uppal Rd, Hyderabad 500007, Telangana, India

[3] Univ Tehran, Inst Geophys, Tehran, Iran

来源：

BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION | 2024年 / 174卷

关键词：

Edge Detection; Gradient; Potential Field; Mapping;

D O I：

10.19111/bulletinofmre.1386653

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Potential field data play a critical role in interpreting various geologic structural features through edge detection filters that aid in mapping subsurface structural features. For this purpose, various filters have been introduced in recent years to determine lateral boundaries. However, each of these filters has its limitations and advantages. This study presents a new edge enhancement filter named Enhanced Gradient (EG) based on the Richards function and applies it to potential field data for structural mapping. The EG is tested on two dimensional (2D) and three dimensional (3D) synthetic magnetic models with sources buried at different depths and variable properties. The results from the EG filter provide more accurate and higher resolution horizontal boundaries and can avoid creating the false edges in the output results. In addition, the proposed filter was examined using aeromagnetic data from the Indiana region in the USA. The primary and secondary faults and geological formations are recognizable in the EG image. The results of the EG map will allow us to improve the qualitative interpretation of potential field anomalies in studying the structural and tectonic geology of the Indiana region in the USA

引用

页码：55 / 66

页数：12

共 29 条

[1] Edge detection of potential field anomalies using the Gompertz function as a high-resolution edge enhancement filter [J].