Parameter measurement of thin elastic layers using low-frequency multi-mode ultrasonic lamb waves.
Rui ZhangMingxi WanWenwu CaoPublished in: IEEE Trans. Instrum. Meas. (2001)
Keyphrases
- low frequency
- high frequency
- frequency domain
- wavelet transform
- subband
- wavelet analysis
- low and high frequency
- electromagnetic fields
- high resolution
- wavelet coefficients
- high frequency components
- dct domain
- original images
- frequency band
- low pass
- computational complexity
- multiresolution
- image analysis
- filter bank
- bit rate
- denoising
- contourlet transform
- fusion rules
- multiscale