Invention Grant
- Patent Title: Method for encoding a digital image, decoding method, devices, user terminal and associated computer programs
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Application No.: US16066966Application Date: 2016-12-16
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Publication No.: US10687082B2Publication Date: 2020-06-16
- Inventor: Felix Henry
- Applicant: B<>COM , ORANGE
- Applicant Address: FR Paris
- Assignee: B<>COM
- Current Assignee: B<>COM
- Current Assignee Address: FR Paris
- Agency: Westman, Champlin & Koehler, P.A.
- Agent David D. Brush
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@49848e60
- International Application: PCT/FR2016/053540 WO 20161216
- International Announcement: WO2017/115028 WO 20170706
- Main IPC: H04N19/64
- IPC: H04N19/64 ; H04N19/39 ; H04N19/192 ; H04N19/119 ; H04N19/61 ; H04N19/176 ; H04N19/13 ; H04N19/91 ; H04N19/50 ; H04N19/18 ; H04N19/136 ; H04N19/46

Abstract:
A method for encoding a digital image divided into a plurality of blocks of pixels. The method includes, for a current block: processing the current block to provide a set of description elements; selecting a subset of description elements to be predicted; ordering the description elements of the subset into an ordered sequence; and encoding the elements of the sequence. Encoding includes scrolling the elements of the sequence and includes, for a current element: selecting a combination of predicted values of the description elements of the current sequence from a plurality of possible combinations based on a predetermined cost criterion and from the second element, values of description elements previously processed of the initial sequence; predicting the current element of the sequence by its value in the selected combination; and encoding an indicator representative of a difference between the actual value of the current element and its predicted value.
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