SELECTIVELY USING MULTIPLE ENTROPY MODELS IN ADAPTIVE CODING AND DECODING

摘要

The number of models in the adaptive entropy coding and decoding techniques and tools used selectively herein have been described. For example , for multiple symbols , an audio encoder selects an entropy model from a first model set that includes multiple entropy models . Multiple entropy models each of which includes a model switch points for switching to a second model set that includes one or more entropy models (model switch point). Using the selected entropy model, the encoder processes the multiple symbols and outputs the result. There are also technical methods and tools for generating an entropy model .