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AssigneeNtt Docomo, Inc.
InventorsMitsuru Kobayashi, Minoru Etoh, Satoru Adachi, Choong Seng Boon
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A signal encoding method according to the present invention is a signal encoding method of dividing a coding target signal as an object of coding into partition units and performing arithmetic coding based on probability-related information in the partition units, which comprises (1) a configuration information deriving step of analyzing the coding target signal in each of the partition units to derive as configuration information, information about an initial value of the probability-related information used for the arithmetic coding of the coding target signal in the partition unit in question; (2) a coding step of performing the arithmetic coding of the coding target signal in each of the partition units, based on the configuration information derived in the configuration information deriving step; and (3) a configuration information adding step of adding a header containing the configuration information to the arithmetic-coded signal in each of the partition units.
A signal decoding method for performing arithmetic decoding and other decoding operations, wherein the arithmetic decoding is performed using probability information, the method comprising:
A signal decoding apparatus which performs arithmetic decoding and other decoding operations, wherein the arithmetic decoding is performed using probability information, the apparatus comprising:
A signal decoding method for performing arithmetic decoding and other decoding operations, wherein the arithmetic decoding is performed using probability information table which comprises transition states each assigned a table address, the method comprising:
A signal decoding apparatus which performs arithmetic decoding and other decoding operations, wherein the arithmetic decoding is performed using probability information table which comprises transition states each assigned a table address, the apparatus comprising:
A signal encoding method for performing arithmetic coding and other encoding operation, wherein the arithmetic coding is performed using probability information, the method comprising:
A signal encoding apparatus which performs arithmetic coding and other encoding operations, wherein the arithmetic coding is performed using probability information, the apparatus comprising:
A signal encoding method for performing arithmetic coding and other encoding operations, wherein the arithmetic coding is performed using a probability information table which comprises transition states each assigned a table address, the method comprising:
A signal encoding apparatus which performs arithmetic coding and other encoding operations, wherein the arithmetic coding is performed using a probability information table which comprises transition states each assigned a table address, the apparatus comprising:
Dependencies are inferred from the claim text.