OpenCL-based optimization methods for utilizing forward DCT and quantization of image compression on a heterogeneous platform.
Nasser AlqudamiShin-Dug KimPublished in: J. Real Time Image Process. (2016)
Keyphrases
- optimization methods
- image compression
- discrete cosine transform
- entropy coding
- discrete cosine transformation
- adaptive quantization
- vector quantization
- low bit rate
- simulated annealing
- optimization problems
- transform coding
- optimization method
- image coder
- reconstructed image
- subband coding
- subband
- wavelet transform
- compression scheme
- compressed images
- compression ratio
- huffman coding
- compression algorithm
- transform coefficients
- stochastic methods
- compression standards
- tree structured vector quantization
- optimization approaches
- global convergence
- dct coefficients
- continuous optimization
- image processing
- progressive transmission
- unconstrained optimization
- efficient optimization
- bayesian network models
- quasi newton
- direct optimization
- dct domain
- jpeg images
- graphics processing units
- image coding
- filter bank
- evolutionary algorithm
- search algorithm
- multiscale