WO2025261757 - ENCODING AND DECODING METHODS, CORRESPONDING DEVICES AND COMPUTER PROGRAM
National phase entry is expected:
Publication Number
WO/2025/261757
Publication Date
26.12.2025
International Application No.
PCT/EP2025/065153
International Filing Date
02.06.2025
Title **
[English]
ENCODING AND DECODING METHODS, CORRESPONDING DEVICES AND COMPUTER PROGRAM
[French]
PROCÉDÉS DE CODAGE ET DE DÉCODAGE, DISPOSITIFS ET PROGRAMME D'ORDINATEUR CORRESPONDANTS
Applicants **
ORANGE
Inventors
CLARE, Gordon
HENRY, Félix
LADUNE, Theo
PHILIPPE, Pierrick
Priority Data
FR2406400
17.06.2024
FR
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2185 | |
| EPO | Filing, Examination, Granting | 8785 | |
| Japan | Filing, Examination, Granting | 2172 | |
| South Korea | Filing, Examination, Granting | 2039 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
21,121
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Abstract[English]
The invention relates to a method for encoding an input signal, which comprises: - obtaining (11) syntax elements representative of the input signal; and - encoding (12) the value of at least one current syntax element: • M-ary to binary conversion (121) of the current syntax element; and • for at least one of the binary elements associated with the current syntax element: ♦ obtaining (1221) information relating to the probability of encoding the current binary element; ♦ applying entropy encoding (1222) to the value of the current binary element; and ♦ if the information relating to the probability of encoding the current binary element is close to an extremum, applying (1232) a first or second entropy encoding mode to at least one subsequent binary element associated with the current syntax element, depending on the value of the current binary element.[French]
L'invention concerne un procédé de codage d'un signal d'entrée mettant en œuvre : − obtention (11) d'éléments de syntaxe représentatifs dudit signal d'entrée, − codage (12) de la valeur d'au moins un élément de syntaxe courant : • transformation M-aire/binaire (121) dudit élément de syntaxe courant, • pour au moins un desdits éléments binaires associés audit élément de syntaxe courant : ♦ obtention (1221) d'une information relative à la probabilité de codage dudit élément binaire courant, ♦ codage entropique (1222) de la valeur dudit élément binaire courant, ♦ si ladite information relative à la probabilité de codage dudit élément binaire courant est proche d'un extremum : application (1232) d'un premier ou d'un deuxième mode de codage entropique à au moins un élément binaire suivant associé audit élément de syntaxe courant, selon la valeur dudit élément binaire courant.