An improved fast encoding algorithm for vector quantization using 2-pixel-merging sum pyramid data structure.
Zhibin PanKoji KotaniTadahiro OhmiPublished in: Pattern Recognit. Lett. (2004)
Keyphrases
- vector quantization
- fractal image compression
- codebook design
- data structure
- entropy constrained vector quantization
- computational complexity
- image compression
- distortion measure
- finite state vector quantization
- multiscale
- neural gas
- input vector
- expectation maximization
- quality measures
- tree structure
- input image
- tree structured vector quantization
- multiresolution
- computer vision