Method and apparatus for encoding of data using both vector...

G - Physics – 06 – K

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G06K 9/36 (2006.01) G06T 9/00 (2006.01) H04N 7/26 (2006.01) H04N 7/28 (2006.01) H04N 7/30 (2006.01) H04N 7/32 (2006.01)

Patent

CA 2104287

A method of encoding information comprising the steps of: for a first component of the position signal, gen- erating (1318) a signal encoding the locations of the se- lected coefficients by a method that has a relatively high efficiency with respect to the generally expected pattern of selected coefficients in the first component; and for a sec- ond component of the position signal, encoding (1322) the locations of the selected coefficients by a method that has relatively high efficiency with respect to the generally expected pattern of selected coefficients in the second components. For instance, runlength encoding can be used for both components, with different codebooks being used (1436) for each. Alternately, vector quantization can be used (1318) for one component, with runlength encod- ing (either standard or with multiple codebooks) being use (1322) for the other component.

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