摘要
本文研究了航磁资料的数字图像处理技术,以及这种技术在火成岩体探测圈定方面的应用问题。重点探讨了航磁图像中岩体信息提取技术:航磁图像二值化处理与密度分割;彩色处理;无方向卷积运算与拉普拉斯变换;立体阴影计算;磁曲面立体显示;二次特征的综合显示与复合处理。文中提出了二次特征复合处理及用综合显示方法制作彩色立体阴影图等有效的信息提取方法。最后,将航磁图像处理技术运用于河南煤田及淮北矿区的火成岩体探测圈定工作,取得了良好效果。
The paper discusses processing technique of aeromagnetic digital data and problems with its application to prospecting igneous rockbodies.It concentrates on technique of extracting useful information of igneous bodies from aeromagnetic images:two-value processing of aeromagnetic image,density division,color processing, unoriented convolutional calculation,and Laplace transform,solid shadow calculation, stereo-display of magnetic curved surface,comprehensive display and compound processing of secondary characteristics.The effective for extraction of information are also proposed,such as compound processing of the secondary characteristics and plotting of colored stereo-shadow by using comprehensive display.This method was successfully applied in prospecting and lineation of igneous rock body in Henan coal field and Huaibei mine area.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第1期67-77,共11页
Journal of China Coal Society
关键词
航磁
数字图像处理
火成岩
岩体
aeromagnetic data
digital image processing
igneous rock
