知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

3878 条记录 (耗时 0.036 秒)

    IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS
    113.
    发明公开
    IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20230247299A1

    公开(公告)日：2023-08-03

    申请号：US18133847

    申请日：2023-04-12

    申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

    发明人： Ki Baek KIM

    IPC分类号： H04N23/698 ,  H04N19/103 ,  H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/597 ,  H04N19/70 ,  G06T3/40

    CPC分类号： H04N23/698 ,  H04N19/103 ,  H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/597 ,  H04N19/70 ,  G06T3/40

    摘要： A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.

    METHOD, APPARATUS, AND ARTICLES OF MANUFACTURE TO GENERATE PACKED VIDEO FRAMES FOR A VOLUMETRIC VIDEO BITSTREAM AND AN IMMERSIVE VIDEO BITSTREAM
    116.
    发明公开
    METHOD, APPARATUS, AND ARTICLES OF MANUFACTURE TO GENERATE PACKED VIDEO FRAMES FOR A VOLUMETRIC VIDEO BITSTREAM AND AN IMMERSIVE VIDEO BITSTREAM 审中-公开

    公开(公告)号：US20230209091A1

    公开(公告)日：2023-06-29

    申请号：US17926558

    申请日：2020-12-26

    申请人： Intel Corporation

    发明人： Jill Boyce ,  Basel Salahieh

    IPC分类号： H04N19/70 ,  H04N19/597 ,  H04N19/172

    CPC分类号： H04N19/70 ,  H04N19/597 ,  H04N19/172

    摘要： Methods, apparatus, systems and articles of manufacture to generate packed video frames are disclosed. A video encoding system disclosed herein includes a configuration determiner to create a packed video frame layout that includes regions into which video components are to be placed. The system also includes a frame generator to form packed video frames that include the video components placed into different regions. The encoding system further includes a frame information generator that generates packed video frame information that identifies characteristics of the packed video frame including (i) the identities of regions included in the packed video frame layout, (ii) types of video components included in the regions, or iii) information identifying the locations and dimensions of the regions. A video encoder of the encoding system encodes the frames and includes the packed video frame information to signal the inclusion of the packed video frames in the encoded bitstream.

    Multi-view coding with exploitation of renderable portions
    117.
    发明授权
    Multi-view coding with exploitation of renderable portions 有权

    公开(公告)号：US11689738B2

    公开(公告)日：2023-06-27

    申请号：US17129457

    申请日：2020-12-21

    申请人： GE Video Compression, LLC

    发明人： Sebastian Bosse ,  Heiko Schwarz ,  Thomas Wiegand ,  Heribert Brust

    IPC分类号： H04N19/52 ,  H04N19/597

    CPC分类号： H04N19/52 ,  H04N19/597

    摘要： Rendered portions of a renderable portion of a first view of a multi-view signal are introduced into a prediction loop of a multi-view encoder to form a reference signal for the block-based prediction of the encoder's view predictor may improve the prediction and thereby increasing the coding efficiency. The introduction may be performed by completely inserting the renderable portion into the prediction loop to form new reference pictures with their own reference picture indices in addition to reference pictures obtained by the reconstructed version of the multi-view signal of the block-based prediction. Alternatively, the rendered portion may be introduced into the prediction loop completely, but with replacing the normal prediction reference signal, i.e., the normally reconstructed signal as obtained by block-based prediction. Alternatively, it may be signaled within the data stream which portions of the renderable portion are used to replace respective portions in the normally reconstructed signal.

    HYBRID CUBEMAP PROJECTION FOR 360-DEGREE VIDEO CODING
    119.
    发明公开
    HYBRID CUBEMAP PROJECTION FOR 360-DEGREE VIDEO CODING 审中-公开

    公开(公告)号：US20230199219A1

    公开(公告)日：2023-06-22

    申请号：US18112234

    申请日：2023-02-21

    申请人： VID SCALE, INC.

    发明人： Xiaoyu Xiu ,  Yuwen He ,  Yan Ye

    IPC分类号： H04N19/597 ,  H04N19/12 ,  H04N19/61 ,  G06T3/00

    CPC分类号： H04N19/597 ,  H04N19/12 ,  H04N19/61 ,  G06T3/0087

    摘要： A system, method, and/or instrumentality may be provided for coding a 360-degree video. A picture of the 360-degree video may be received. The picture may include one or more faces associated with one or more projection formats. A first projection format indication may be received that indicates a first projection format may be associated with a first face. A second projection format indication may be received that indicates a second projection format may be associated with a second face. Based on the first projection format, a first transform function associated with the first face may be determined. Based on the second projection format, a second transform function associated with the second face may be determined. At least one decoding process may be performed on the first face using the first transform function and/or at least one decoding process may be performed on the second face using the second transform function.