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    Efficient association between DASH objects
    1.
    发明授权
    Efficient association between DASH objects 有权

    公开(公告)号：US12301645B2

    公开(公告)日：2025-05-13

    申请号：US16938125

    申请日：2020-07-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ye-Kui Wang ,  Yuqun Fan ,  Peiyun Di

    IPC: H04N21/65 ,  H04L65/65 ,  H04N21/218 ,  H04N21/235 ,  H04N21/81 ,  H04N21/845

    Abstract: A method mechanism for streaming multi-viewpoint virtual reality (VR) content via Dynamic Adaptive Streaming over Hypertext Transfer Protocol (HTTP) (DASH) is disclosed. The mechanism includes receiving media content including a VR video sequence. A DASH Media Presentation Description (MPD) is generated. The MPD includes an indication specifying that a portion of the media content that is related to a first viewpoint is associated with a timed metadata representation. A request is received from a client for the media content. The DASH MPD, including the indication, is transmitted to the client in response to receiving the request to support communication of the media content to the client.

    Signaling A Sign Value And An Absolute Value For A Delta Picture Order Count
    2.
    发明申请
    Signaling A Sign Value And An Absolute Value For A Delta Picture Order Count 有权

    公开(公告)号：US20250142114A1

    公开(公告)日：2025-05-01

    申请号：US18943380

    申请日：2024-11-11

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： FNU Hendry ,  Ye-Kui Wang

    IPC: H04N19/58 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

    Abstract: A method of decoding a coded video bitstream implemented by a video decoder. The coded video bitstream includes a plurality of reference picture list structures each containing a plurality of reference picture entries. The method includes parsing a flag that specifies a sign value of an absolute value of a delta picture order count (POC) associated with a short-term reference picture entry from the plurality of reference picture entries; parsing the absolute value of the delta POC associated with the short-term reference picture entry; generating a reference picture list based on the sign value of the absolute value of the delta POC and the absolute value of the delta POC; and performing inter-prediction based on the reference picture list to generate a reconstructed block.

    Signaling of picture header in video coding
    3.
    发明授权
    Signaling of picture header in video coding 有权

    公开(公告)号：US12289474B2

    公开(公告)日：2025-04-29

    申请号：US17702448

    申请日：2022-03-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fnu Hendry ,  Ye-Kui Wang ,  Jianle Chen

    IPC: H04N19/70 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/44 ,  H04N19/46

    Abstract: A method of decoding is provided. The method includes receiving a video bitstream including a picture unit (PU) having a picture header (PH) with a PH syntax structure, where the PH syntax structure includes the following syntax elements common for all slices of a coded picture associated with the PH syntax structure: a non-reference picture flag, a picture parameter set (PPS) identifier (ID), a picture order count (POC) least significant bit (LSB), a no output of prior pictures flag, a recovery point POC, and a picture output flag; and decoding the coded picture from the PU to obtain a decoded picture.

    Mixed NAL Unit Picture Constraints In Video Coding
    7.
    发明申请
    Mixed NAL Unit Picture Constraints In Video Coding 有权

    公开(公告)号：US20240422331A1

    公开(公告)日：2024-12-19

    申请号：US18677600

    申请日：2024-05-29

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ye-Kui Wang ,  FNU Hendry

    IPC: H04N19/169 ,  H04N19/105 ,  H04N19/107 ,  H04N19/117 ,  H04N19/172 ,  H04N19/174 ,  H04N19/70

    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a current picture including a plurality of video coding layer (VCL) network abstraction layer (NAL) units that do not have a same NAL unit type. Active entries of reference picture lists are obtained for slices positioned in a sub-picture A (subpicA) in subsequent pictures following the current picture in decoding order. The active entries do not refer to any reference picture preceding the current picture in decoding order when the subpicA at the current picture is associated with an intra-random access point (IRAP) NAL unit type. The subsequent pictures are decoded based on the reference picture list active entries. The subsequent pictures are forwarded for display as part of a decoded video sequence.

    Reference Picture Management in Video Coding
    8.
    发明申请
    Reference Picture Management in Video Coding 有权

    公开(公告)号：US20240414321A1

    公开(公告)日：2024-12-12

    申请号：US18756253

    申请日：2024-06-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： FNU Hendry ,  Ye-Kui Wang

    IPC: H04N19/105 ,  G06T1/60 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70 ,  H04N21/44

    Abstract: A method for storing a coded video bitstream. The method includes obtaining the coded video bitstream and storing the coded video bitstream in at least one storage medium. The coded video bitstream includes a first reference picture list syntax structure and a second reference picture list syntax structure. Each reference picture list syntax structure contains a number of entries. A first reference picture list of a current slice and a second reference picture list of the current slice are derived based on the first reference picture list syntax structure and the second reference picture list syntax structure. The first reference picture list and the second reference picture list are derived for bitstream conformance checking instead of for decoding a current picture or pictures following the current picture in decoding order when the current slice comprises an intra (I) slice of a non-intra random access point (IRAP) picture.

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