Improved wavelet packet threshold denoising method for complex electromechanical hydraulic system.
Zizhou HeSuicheng LiWenwen ShenTianyou YuanXiaowei ZhouPublished in: CNIOT (2023)
Keyphrases
- wavelet packet
- denoising methods
- denoising
- filter bank
- wavelet packet decomposition
- wavelet packet transform
- noisy images
- wavelet transform
- image denoising
- subband
- denoising algorithm
- nonlocal means
- quadtree
- wavelet decomposition
- translation invariant
- non stationary
- natural images
- fault diagnosis
- image coding
- image patches
- index structure
- frequency band
- machine learning