Penetration feature extraction and modeling of arc sound signal in GTAW based on wavelet analysis and hidden Markov model.
Na LvJiyong ZhongHuabin ChenShan-Ben ChenJifeng WangPublished in: ISIE (2013)
Keyphrases
- hidden markov models
- wavelet analysis
- wavelet transform
- feature extraction
- low frequency
- multiresolution
- speech recognition
- mexican hat
- factor analysis
- multiscale
- high frequency
- preprocessing
- feature detection
- frequency domain
- feature vectors
- hidden states
- wavelet coefficients
- basis functions
- discriminant analysis
- wavelet decomposition
- subband
- image processing
- image compression
- signal processing
- dynamic programming
- face recognition
- wavelet domain
- image quality
- feature space