公开(公告)号：US10587859B2

公开(公告)日：2020-03-10

申请号：US16171149

申请日：2018-10-25

Applicant: HFI Innovation Inc.

Inventor： Jicheng An ,  Kai Zhang ,  Jian-Liang Lin

IPC: H04N13/161 ,  H04N19/597 ,  H04N19/52 ,  H04N19/176 ,  H04N19/44 ,  H04N19/139

Abstract: A method for a three-dimensional encoding or decoding system incorporating sub-block based inter-view motion prediction is disclosed. The system utilizes motion or disparity parameters associated with reference sub-blocks in a reference picture of a reference view corresponding to the texture sub-PCU split from a current texture PU (prediction unit) to predict the motion or disparity parameters of the current texture PU. Candidate motion or disparity parameters for the current texture PU may comprise candidate motion or disparity parameters derived for all texture sub-PUs from splitting the current texture PU. The candidate motion or disparity parameters for the current texture PU can be used as a sub-block-based inter-view Merge candidate for the current texture PU in Merge mode. The sub-block-based inter-view Merge candidate can be inserted into a first position of a candidate list.

公开(公告)号：US20190191180A1

公开(公告)日：2019-06-20

申请号：US16282773

申请日：2019-02-22

Applicant: HFI INNOVATION INC.

Inventor： Jicheng AN ,  Kai Zhang ,  Jian-Liang Lin

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/139 ,  H04N19/52 ,  H04N19/436 ,  H04N19/105

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52

Abstract: A method and apparatus for coding a depth block in three-dimensional video coding are disclosed. Embodiments of the present invention divide a depth block into depth sub-blocks and determine default motion parameters. For each depth sub-block, the motion parameters of a co-located texture block covering the center sample of the depth sub-block are determined. If the motion parameters are available, the motion parameters are assigned as inherited motion parameters for the depth sub-block. If the motion parameters are unavailable, the default motion parameters are assigned as inherited motion parameters for the depth sub-block. The depth sub-block is then encoded or decoded using the inherited motion parameters or a motion candidate selected from a motion candidate set including the inherited motion parameters. The depth block may correspond to a depth prediction unit (PU) and the depth sub-block corresponds to a depth sub-PU.

公开(公告)号：US10110922B2

公开(公告)日：2018-10-23

申请号：US14762508

申请日：2014-04-03

Applicant: HFI INNOVATION INC.

Inventor： Kai Zhang ,  Yi-Wen Chen ,  Jicheng An ,  Jian-Liang Lin

IPC: H04N7/12 ,  H04N19/597 ,  H04N13/10 ,  H04N19/105 ,  H04N19/50 ,  H04N19/503

Abstract: A method of illumination compensation for three-dimensional or multi-view encoding and decoding. The method incorporates an illumination compensation flag only if the illumination compensation is enabled and the current coding unit is processed by one 2N×2N prediction unit. The illumination compensation is applied to the current coding unit according to the illumination compensation flag. The illumination compensation flag is incorporated when the current coding unit is coded in Merge mode without checking whether a current reference picture is an inter-view reference picture.

公开(公告)号：US10021367B2

公开(公告)日：2018-07-10

申请号：US14762881

申请日：2014-03-20

Applicant: HFI Innovation Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen

IPC: H04N19/597 ,  H04N19/96 ,  H04N19/176 ,  H04N19/51 ,  H04N13/00 ,  H04N19/61

CPC classification number: H04N13/161 ,  H04N19/176 ,  H04N19/51 ,  H04N19/597 ,  H04N19/61 ,  H04N19/96

Abstract: A method and apparatus of three-dimensional/multi-view coding using a candidate list including a second inter-view candidate in the candidate list for Merge mode, Skip mode or AMVP based (Advanced Motion Vector Prediction based) Inter mode are disclosed. The second inter-view candidate can be derived based on already coded or decoded texture data for the candidate list to include. For example, the second inter-view candidate can be determined from the motion information associated with a corresponding block in a reference view, where the corresponding block is located according to the location of the right-bottom neighboring block and a selected disparity vector. The right-bottom neighboring block is located across from a right-bottom corner of the current texture block. The second inter-view candidate can be inserted into the candidate list only when the number of previous available candidates is smaller than a pre-specified number.

公开(公告)号：US09961369B2

公开(公告)日：2018-05-01

申请号：US14408956

申请日：2013-06-27

Applicant: HFI Innovation Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/157 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52

Abstract: A method and apparatus for three-dimensional video encoding or decoding using the disparity vector derived from an associated depth block are disclosed. The method determines an associated depth block for a current texture block and derives a derived disparity vector based on a subset of depth samples of the associated depth block. The subset contains less depth samples than the associated depth block and the subset excludes a single-sample subset corresponding to a center sample of the associated depth block. The derived disparity vector can be used as an inter-view motion (disparity) vector predictor in Inter mode, an inter-view (disparity) candidate in Merge mode or Skip mode. The derived disparity vector can also be used to locate a reference block for inter-view motion prediction in Inter mode, inter-view candidate in Merge or Skip mode, inter-view motion prediction, inter-view disparity prediction, or inter-view residual prediction.

公开(公告)号：US20180077427A9

公开(公告)日：2018-03-15

申请号：US14517787

申请日：2014-10-17

Applicant: HFI INNOVATION INC.

Inventor： Jicheng An ,  Kai Zhang ,  Yi-Wen Chen ,  Jian-Liang Lin

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/51

CPC classification number: H04N19/597 ,  H04N13/128 ,  H04N13/161 ,  H04N19/105 ,  H04N19/157 ,  H04N19/51 ,  H04N19/513

Abstract: A method for a three-dimensional encoding or decoding system incorporating restricted sub-PU level prediction is disclosed. In one embodiment, the sub-PU level prediction associated with inter-view motion prediction or view synthesis prediction is restricted to the uni-prediction. In another embodiment, the sub-PU partition associated with inter-view motion prediction or view synthesis prediction is disabled if the sub-PU partition would result in sub-PU size smaller than the minimum PU split size or the PU belongs to a restricted partition group. The minimum PU split size may correspond to 8×8. The restricted partition group may correspond to one or more asymmetric motion partition (AMP) modes.

公开(公告)号：US09912964B2

公开(公告)日：2018-03-06

申请号：US14582045

申请日：2014-12-23

Applicant: HFI INNOVATION INC.

Inventor： Xianguo Zhang ,  Kai Zhang ,  Jicheng An ,  Jian-Liang Lin

IPC: H04N19/597 ,  H04N19/517 ,  H04N19/176 ,  H04N19/119 ,  H04N19/157

CPC classification number: H04N19/597 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/517

Abstract: A method of improved texture-partition-dependent depth partition is disclosed. First, the available texture partitions for a collocated texture block are classified into two or more groups, and a set of candidate depth partitions is determined for each group. In one embodiment, at least one set of the candidate depth partitions contain more than one candidate depth partition and less than all candidate depth partitions. In another embodiment, the collocated texture blocks are classified into two groups, and one of the two groups includes the N×N texture partition and at least another texture partition. In yet another embodiment, the collocated texture blocks are classified into three groups or more. A current depth partition for the current depth block is then selected from a corresponding set of candidate depth partitions according to a corresponding group that a current texture partition associated with the collocated texture block belongs.

公开(公告)号：US09872016B2

公开(公告)日：2018-01-16

申请号：US14239302

申请日：2012-10-18

Applicant: HFI Innovation Inc.

Inventor： Tzu-Der Chuang ,  Jian-Liang Lin ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/51 ,  H04N19/52 ,  H04N19/70 ,  H04N19/593

CPC classification number: H04N19/52 ,  H04N19/50 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) candidate set for a block are disclosed. Embodiments according to the present invention generate a complete full MVP candidate set based on the redundancy-removed MVP candidate set if one or more redundant MVP candidates exist. In one embodiment, the method generates the complete full MVP candidate set by adding replacement MVP candidates to the redundancy-removed MVP candidate set and a value corresponding to a non-redundant MVP is assigned to each replacement MVP candidate. In another embodiment, the method generates the complete full MVP candidate set by adding replacement MVP candidates to the redundancy-removed MVP candidate set and a value is as signed to each replacement MVP candidate according to a rule. The procedure of assigning value, checking redundancy, removing redundant MVP candidate are repeated until the MVP candidate set is complete and full.

公开(公告)号：US09621920B2

公开(公告)日：2017-04-11

申请号：US14582115

申请日：2014-12-23

Applicant: HFI INNOVATION INC.

Inventor： Jicheng An ,  Yi-Wen Chen ,  Kai Zhang ,  Jian-Liang Lin

IPC: H04N7/12 ,  H04N15/00 ,  H04N19/597 ,  H04N19/513 ,  H04N13/00 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/103

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513

Abstract: A method and apparatus for a three-dimensional or multi-view video encoding or decoding system are disclosed, where a three-dimensional coding tool relying on a disparity vector are adaptively applied depending on whether the inter-view reference picture pointed by the disparity vector is in the reference list associated with the current slice. The three-dimensional coding tool may correspond to the Inter-View Motion Prediction (IVMP) or View Synthesis Prediction (VSP). If the inter-view reference picture pointed by the DV is not in the current reference list associated with the current slice, the selected three-dimensional coding tool is disabled for the current block. If the inter-view reference picture pointed by the DV is in the current reference list associated with the current slice, the selected three-dimensional coding tool can be applied to the current block.

公开(公告)号：US11089330B2

公开(公告)日：2021-08-10

申请号：US16282773

申请日：2019-02-22

Applicant: HFI INNOVATION INC.

Inventor： Jicheng An ,  Kai Zhang ,  Jian-Liang Lin

IPC: H04N19/00 ,  H04N19/597 ,  H04N19/52 ,  H04N19/436 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176

Abstract: A method and apparatus for coding a depth block in three-dimensional video coding are disclosed. Embodiments of the present invention divide a depth block into depth sub-blocks and determine default motion parameters. For each depth sub-block, the motion parameters of a co-located texture block covering the center sample of the depth sub-block are determined. If the motion parameters are available, the motion parameters are assigned as inherited motion parameters for the depth sub-block. If the motion parameters are unavailable, the default motion parameters are assigned as inherited motion parameters for the depth sub-block. The depth sub-block is then encoded or decoded using the inherited motion parameters or a motion candidate selected from a motion candidate set including the inherited motion parameters. The depth block may correspond to a depth prediction unit (PU) and the depth sub-block corresponds to a depth sub-PU.