A hybrid contextual compression technique using wavelet and contourlet transforms with PSO optimized prediction.
P. Eben SophiaJ. AnithaPublished in: Int. J. Imaging Syst. Technol. (2017)
Keyphrases
- multiresolution
- particle swarm optimization pso
- wavelet transform
- denoising
- particle swarm optimization
- particle swarm optimization algorithm
- prediction accuracy
- predictive coding
- wavelet tree
- image compression
- wavelet compression
- contextual information
- multiscale
- prediction model
- data compression
- energy compaction
- compression scheme
- hybrid optimization algorithm
- particle swarm optimizer
- wavelet based contourlet transform
- particle swarm optimisation
- subband
- optimization algorithm
- multi objective
- contourlet transform
- wavelet filters
- transform coding
- imperialist competitive algorithm
- image coder
- hybrid algorithm
- pso algorithm
- image denoising
- wavelet coefficients
- wavelet domain
- biorthogonal wavelet
- compression efficiency
- lifting scheme
- lossless compression
- compression ratio
- compression algorithm
- computational complexity