To provide a decoding system capable of improving the encoding efficiency.
The decoding system includes a recording medium and a decoding device which includes an arithmetic decoding unit for performing the arithmetic decoding of image data by switching a plurality of probability tables, a conversion unit for converting the absolute value of the coefficient value obtained through the arithmetic decoding into the coefficient value of two-dimensional sequence within a block, and a voice decoding unit for decoding voice data to generate a voice signal. At the arithmetic decoding unit, switching of a plurality of probability tables is one-directional switching in which any probability tables that have been used prior to a newly switched probability table are not used again when performing the arithmetic decoding of the absolute value of the coefficient value following the coefficient value targeted for decoding at the beginning after switching to a new probability table.
SUMINO SHINYA
HAGAI MAKOTO
ABE SEISHI
| JPH11341497A | 1999-12-10 | |||
| JPH08186722A | 1996-07-16 | |||
| JPH06178282A | 1994-06-24 | |||
| JPH08214310A | 1996-08-20 | |||
| JPH06343168A | 1994-12-13 | |||
| JPH04100390A | 1992-04-02 | |||
| JP2001024515A | 2001-01-26 |