Research on the magnetic flux leakage field distribution characteristics of defect in low-frequency electromagnetic detection technique.
Lijian YangPing HuangSongwei GaoZhouzhong DuShi BaiPublished in: IEICE Electron. Express (2021)
Keyphrases
- low frequency
- high frequency
- electromagnetic fields
- electromagnetic field
- wavelet transform
- high resolution
- frequency domain
- wavelet coefficients
- low pass
- subband
- discrete wavelet transform
- frequency band
- wavelet analysis
- high frequency components
- subband decomposition
- permalloy films
- image registration
- dct domain
- original images
- magnetic field
- multiscale
- multiresolution