公开(公告)号：US09838712B2

公开(公告)日：2017-12-05

申请号：US14656993

申请日：2015-03-13

申请人： HFI Innovation Inc.

发明人： Jian-Liang Lin ,  Yi-Wen Chen ,  Xianguo Zhang ,  Kai Zhang ,  Jicheng An ,  Han Huang

IPC分类号： H04N19/597 ,  H04N19/119 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176 ,  H04N13/00

CPC分类号： H04N19/597 ,  H04N13/161 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

摘要： A method of signaling depth-based block partitioning (DBBP) for multi-view or three-dimensional (3D) video coding is disclosed. In one embodiment, the DBBP flag is signaled for all candidate prediction modes of the current texture coding unit including a non-2N×N partition mode. The group of candidate prediction modes may consist of 2N×N partition mode and N×2N partition mode. If the DBBP flag indicates the DBBP being used for the current texture coding unit, DBBP encoding is applied to the current texture coding unit or DBBP decoding is applied to one or more PUs associated with the current texture coding unit to recover the current texture coding unit. If the DBBP flag indicates the DBBP being not used for the current texture coding unit, a prediction partition mode is signaled at an encoder side or parsed at a decoder side from a CU (coding unit) level of the bitstream.

公开(公告)号：US10820015B2

公开(公告)日：2020-10-27

申请号：US15108878

申请日：2014-12-31

申请人： HFI Innovation Inc.

发明人： Xianguo Zhang ,  Jian-Liang Lin ,  Kai Zhang ,  Jicheng An ,  Han Huang ,  Yi-Wen Chen

IPC分类号： H04N19/597 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/86 ,  H04N19/172 ,  H04N19/182 ,  H04N19/96

摘要： A method and apparatus for Intra prediction coding in multi-view video coding, three-dimensional video coding, or screen content video coding are disclosed. A first filtering-disable-flag associated with a high-level video data is determined to indicate whether to disable at least one filter from a filter group. If the first filtering-disable-flag is asserted, one or more selected Intra prediction modes from an Intra prediction mode group is determined, and at least one filter from the filter group for the current block is skipped if the current Intra prediction mode of the current block belongs to the selected Intra prediction modes. The system may further determine a second filtering-disable-flag associated with a low-level video data corresponding to a current block level or a higher level than the current block level to disable said at least one filter from a filter group for the low-level video data.

公开(公告)号：US10218957B2

公开(公告)日：2019-02-26

申请号：US14905705

申请日：2015-06-18

申请人： HFI INNOVATION INC.

发明人： Han Huang ,  Xianguo Zhang ,  Jicheng An ,  Jian-Liang Lin ,  Kai Zhang

IPC分类号： H04N13/00 ,  H04N19/44 ,  H04N19/51 ,  H04N19/597 ,  H04N19/70 ,  H04N19/30 ,  H04N19/187 ,  H04N19/176 ,  H04N19/136 ,  H04N13/161 ,  H04N13/128 ,  H04N13/15

摘要： A method of sub-PU (prediction unit) syntax element signaling for a three-dimensional or multi-view video coding system is disclosed. A first syntax element associated with a texture sub-PU size is transmitted only for texture video data and a second syntax element associated with a depth sub-PU size is transmitted only for depth video data. The first syntax element associated with the texture sub-PU size is used to derive an IVMP (inter-view motion prediction) prediction candidate used for a texture block. The second syntax element associated with the depth sub-PU size is used to a MPI (motion parameter inheritance) prediction candidate for a depth block.

公开(公告)号：US09992494B2

公开(公告)日：2018-06-05

申请号：US14583628

申请日：2014-12-27

申请人： HFI INNOVATION INC.

发明人： Xianguo Zhang ,  Kai Zhang ,  Jicheng An ,  Han Huang ,  Jian-Liang Lin

IPC分类号： H04N19/119 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/136 ,  H04N13/00

CPC分类号： H04N13/161 ,  H04N13/106 ,  H04N13/15 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/597

摘要： A method of simplified depth-based block partitioning (DBBP) for three-dimensional and multi-view video coding is disclosed. In one embodiment, the derivation of a representative value of a corresponding depth block or a reference texture block in a reference view for generating a segmentation mask and selecting a block partition are unified. In another embodiment, the first representative value, the second representative value, or both are calculated from partial samples of the corresponding depth block or the reference texture block. In yet another embodiment, a first representative value for first samples in a first partitioned block of the corresponding depth block or the reference texture block, and a second representative value for second samples in a second partitioned block of the corresponding depth block or the reference texture block for each of block partition candidates are determined.

公开(公告)号：US09843821B2

公开(公告)日：2017-12-12

申请号：US14916170

申请日：2015-06-24

申请人： HFI INNOVATION INC.

发明人： Jicheng An ,  Kai Zhang ,  Xianguo Zhang ,  Han Huang ,  Jian-Liang Lin

IPC分类号： H04N19/52 ,  H04N19/597 ,  H04N19/537 ,  H04N19/573

CPC分类号： H04N19/597 ,  H04N19/52 ,  H04N19/537 ,  H04N19/573

摘要： A method and apparatus for inter-view ARP (advanced residual prediction) are disclosed. According to one embodiment, a first inter-view reference block of a first inter-view reference picture in a first reference view is determined using a current MV (motion vector) of the current block in an inter-view direction. A first MV associated with the first inter-view reference block is derived. If the first MV points to a second inter-view reference picture in a second reference view, the derived MV is set to a default derived MV. A second temporal reference block in the second temporal reference picture corresponding to the current block is identified using the derived MV. An inter-view residual predictor corresponding to the difference between a second inter-view reference block in the first reference view and the second temporal reference block is generated and used as a predictor for the current inter-view residual of the current block.

公开(公告)号：US10085041B2

公开(公告)日：2018-09-25

申请号：US15696260

申请日：2017-09-06

申请人： HFI Innovation Inc.

发明人： Kai Zhang ,  Jicheng An ,  Xianguo Zhang ,  Han Huang

IPC分类号： H04N19/597 ,  H04N19/34 ,  H04N19/503 ,  H04N19/70

CPC分类号： H04N19/597 ,  H04N19/34 ,  H04N19/503 ,  H04N19/70

摘要： A method and apparatus for depth lookup table (DLT) signaling in a three-dimensional and multi-view coding system. The method identifies one or more pictures to be processed. If one or more pictures contain depth data, then the method determines the DLT associated with said one or more pictures, applies predictive coding to the DLT based on the previous DLT, includes syntax related to the DLT in the PPS, and includes first bit-depth information related to first depth samples of the DLT in the PPS. The first bit-depth information is consistent with second bit depth information signaled in a sequence level. The method further signals the PPS in a video bitstream for a sequence including said one or more pictures. A circuit is also provided that embodies circuitry configured to carry out the operations specified above.

公开(公告)号：US10212411B2

公开(公告)日：2019-02-19

申请号：US15967694

申请日：2018-05-01

申请人： HFI Innovation Inc.

发明人： Xianguo Zhang ,  Kai Zhang ,  Jicheng An ,  Han Huang ,  Jian-Liang Lin

IPC分类号： H04N19/119 ,  H04N13/15 ,  H04N19/46 ,  H04N13/106 ,  H04N13/161 ,  H04N19/136 ,  H04N19/176 ,  H04N19/597

摘要： A method of simplified depth-based block partitioning (DBBP) for three-dimensional and multi-view video coding is disclosed. In one embodiment, the method receives input data associated with a current texture block in a dependent view, and determines a corresponding depth block or a reference texture block in a reference view for the current texture block. Then, the method derives a representative value based on the corresponding depth block or the reference texture block, and generates a current segmentation mask from the corresponding depth block or the reference texture block. Then, the method selects a current block partition from block partition candidates, wherein the representative value is used for generating the segmentation mask or selecting the current block partition or both, and applies DBBP coding to the current texture block according to the current segmentation mask generated and the current block partition selected.

公开(公告)号：US09800896B2

公开(公告)日：2017-10-24

申请号：US15123882

申请日：2015-03-17

申请人： HFI Innovation Inc.

发明人： Kai Zhang ,  Jicheng An ,  Xianguo Zhang ,  Han Huang

IPC分类号： H04N19/597 ,  H04N19/503 ,  H04N19/34 ,  H04N19/70

CPC分类号： H04N19/597 ,  H04N19/34 ,  H04N19/503 ,  H04N19/70

摘要： A method and apparatus for depth lookup table (DLT) signaling in a three-dimensional and multi-view coding system are disclosed. According to the present invention, if the pictures contain only texture data, no DLT information is incorporated in the picture parameter set (PPS) corresponding to the pictures. On the other hand, if the pictures contain depth data, the DLT associated with the pictures is determined. If a previous DLT required for predicting the DLT exists, the DLT will be predicted based on the previous DLT. Syntax related to the DLT is included in the PPS. Furthermore, first bit-depth information related to first depth samples of the DLT is also included in the PPS and the first bit-depth information is consistent with second bit-depth information signaled in a sequence level data for second depth samples of a sequence containing the pictures.