- Patent Title: Methods, devices, and computer programs for combining the use of intra-layer prediction and inter-layer prediction with scalability and screen content features
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Application No.: US15425838Application Date: 2017-02-06
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Publication No.: US10694207B2Publication Date: 2020-06-23
- Inventor: Christophe Gisquet , Guillaume Laroche , Patrice Onno
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6e606615
- Main IPC: H04N19/11
- IPC: H04N19/11 ; H04N19/573 ; H04N19/593 ; H04N19/70
Abstract:
The present invention relates to encoding an image of a video stream according to at least one coding mode selected among a plurality of coding modes used to encode images of the video stream, where blocks of the image to be encoded are predicted as a function of at least one reference image from a set of at least one reference image, the at least one reference image comprising at least a reconstructed spatial portion of the image to be encoded and at least a low resolution portion of the image to be encoded, the choice between a reconstructed spatial sub-portion or a low resolution sub-portion to be used for encoding a block of the image to be encoded being determined as a function of a control parameter.
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