The concept of video coding related to subpictures

By distinguishing between layers encoded as subpictures and those not encoded as subpictures, and using inter-layer prediction tools, the method addresses inefficiencies in video coding, enhancing decoding efficiency and reducing signal overhead in viewport-dependent streaming.

JP7884461B2Active Publication Date: 2026-07-03FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
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Patent Information

Application Number
JP2022570632
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-05-22
Filing Date
2021-05-20
Publication Date
2026-07-03
Estimated Expiration
2041-05-20

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Abstract

Video coding concepts are described that relate to encoding, decoding, extracting, and mixing video data streams having pictures encoded to be subdivided into independently coded sub-pictures, extracting sub-picture-specific video data streams having layers of subdivided pictures and layers of non-subdivided pictures, processing inter-layer prediction tools and scaling windows for inter-layer prediction of such video data, determining decoder functionality requirements for such data streams, layer-specific constraints for such data streams, and mixing of independently coded sub-pictures encoded with different types.
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Citation Information

Patent Citations

  • Combined scalability processing for multi-layer video coding

    JP2020010341A

  • Decoder side motion vector derivation based on reference pictures

    WO2020084464A1