A hybrid approach of wavelet packet and directional decomposition for image compression.
Chang N. ZhangXiangyou WuPublished in: Int. J. Imaging Syst. Technol. (2002)
Keyphrases
- wavelet packet
- image compression
- subband
- wavelet transform
- filter bank
- image coder
- wavelet decomposition
- vector quantization
- wavelet coefficients
- wavelet packet transform
- denoising
- wavelet packet decomposition
- wavelet function
- compression algorithm
- translation invariant
- discrete wavelet transform
- high frequency
- multiresolution
- low bit rate
- compression ratio
- wavelet domain
- lifting scheme
- compressed images
- lossless compression
- image processing
- transform coding
- image coding
- quadtree
- low frequency
- multiscale
- frequency domain
- image data
- image classification
- non stationary
- frequency band
- object recognition
- machine learning
- feature extraction