利用二维傅里叶变换(FFT)消除刻槽,并通过同态滤波增强裂缝对比度;采用自适应方向的LoG算法在空域中增强裂缝;使用Otsu法,对全局图......

In many engineering applications such as mining,geotechnical and petroleum industries,drilling operation is widely used.......

A Fast Fourier transform approach has been presented by Carr & Madan (2009) on a single underlying asset. In this curren......

An efficient and accurate numerical method, which is called the CONV method, was proposed by Lord et al in [1] to price ......

The aim of this investigation is to study some FFT problems related to the application of FFT to gravity field convoluti......

This study is concerned with 12-MW capacity turbochargers on diesel power generators. These are generators equipped with......