METHOD AND APPARATUS FOR ENCODING OF DATA USING BOTH VECTOR QUANTIZATION AND RUNLENGTH ENCODING AND USING ADAPTIVE RUN-LENGTH ENCODING

摘要

Generating, in the first component of the position signal, a signal that encodes the position of the selected coefficient by a method having a relatively high efficiency with respect to the generally expected type of selected coefficient in the first component; And encoding, 1322, the position of the selected coefficient by a method having a relatively high efficiency with respect to the type of generally expected selected coefficient in the second component, in the second component of the position signal. How to. For example, run lance encoding may be used for two components with different codebooks used for each (1436). Alternatively, vector quantization can be used (1318) with one component with runlength encoding (with level or complex codebook) used for other components.