Signal characteristic extractio of wood defects based on wavelet packet.
Huimin YangLihai WangYumei WangPublished in: EMEIT (2011)
Keyphrases
- wavelet packet
- wavelet packet decomposition
- wavelet packet transform
- filter bank
- denoising
- wavelet transform
- defect classification
- wavelet function
- subband
- frequency band
- non stationary
- image recognition
- wavelet decomposition
- lifting scheme
- image coding
- frequency selective
- quadtree
- vibration signal
- neural network
- computationally efficient
- image compression
- computational complexity
- feature extraction