What does AC stand for?

[11] uses grammar codes in that the original image is first transformed into a context free grammar from which the original data sequence can be fully reconstructed by performing parallel and recursive substitutions and then using an arithmetic coding algorithm to compress the context free grammar.

In this paper, we present a hyperspectral image lossy-to-lossless compression method based on the 3D SPEZBC algorithm, which adopts the Xiong's 3D integer wavelet packet transform (3D integer WPT) to decorrelate, the set-based quadtree partitioning zeroblock technique to process bitplane coding and the context-based adaptive arithmetic coding for further entropy coding.

Finally, the arithmetic coding for all bitplanes of ROI and BG are completed.

With Finline's modified amplitude-zerotrees, zerotree-linked texture maps, adaptive model arithmetic coding, and visual-rules bit allocation, Finline's algorithms have been designed to obtain optimal compression with acceptable program complexity.

With Impress' modified amplitude-zerotrees, zerotree-linked texture maps, adaptive model arithmetic coding, and visual-rules bit allocation, Impress' algorithms have been designed to obtain optimal compression with acceptable program complexity.