【摘要】 将图像处理中边缘检测与磁场资料处理中导数滤波结合起来,提出了一种基于Canny理论的磁场源边界检测方法。利用归一化水平导数的垂向导数方法作为边界增强方法对Canny算子进行改造,在保持了Canny算子原有的定位准确,信噪比高等优点的基础上,提高了Canny算子在提取磁场源边界的适应性和准确度。通过模型试验和实际资料处理,验证了该方法的正确性。更多还原

【Abstract】 We combine boundary detection in image processing with derivative filter in magnetic data processing,and propose boundary detection of the magnetic field source based on canny theory.We use the normalized horizontal derivative as a boundary enhancement method to improve the canny operator.Canny operator has the original advantage of accurate positioning and high signal-to-noise ratio.This method maintains the advantage and improves the flexibility and accuracy in boundary detection of magnetic field source.Feasibility is proved through model test and field data processing.更多还原