公开(公告)号：US20200007863A1

公开(公告)日：2020-01-02

申请号：US16564042

申请日：2019-09-09

Applicant: HFI Innovation Inc.

Inventor： Xiaozhong XU ,  Kai ZHANG ,  Shan LIU ,  Jicheng AN ,  Xianguo ZHANG

IPC: H04N19/117 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/523 ,  H04N19/124 ,  H04N19/86

Abstract: A method of MVP (motion vector prediction) for video coding with adaptive motion vector resolution is disclosed. According to the present invention, the MVP coding is applied to the current MV or the current MV is stored depending on the current MV resolution, the reference MV resolution, or both the current MV resolution and the reference MV resolution. In one embodiment, when the current MV resolution corresponds to integer pixel resolution, MVP coding is then applied to the current MV using a modified temporal MV as a motion vector predictor for the current MV, where the modified temporal MV is generated by right-shifting the temporal MV. In another embodiment, when the current MV resolution corresponds to integer pixel resolution, the current MV is left-shifted before it is stored in a memory.

公开(公告)号：US20180084276A1

公开(公告)日：2018-03-22

申请号：US15816946

申请日：2017-11-17

Applicant: HFI Innovation Inc.

Inventor： Xianguo ZHANG ,  Kai ZHANG ,  Jian-Liang LIN ,  Jicheng AN ,  Yi-Wen CHEN

IPC: H04N19/593 ,  H04N19/146 ,  H04N19/597

CPC classification number: H04N19/593 ,  H04N19/146 ,  H04N19/597

Abstract: A method and apparatus of depth coding using depth modelling mode 1 (DMM1) are disclosed to reduce the wedgelet pattern table size. In one embodiment, a size-reduced wedgelet pattern for a reduced wedgelet pattern table is generated by excluding at least one non-corner adjacent-edge sample for adjacent-edge partition or at least one opposite-edge sample for opposite-edge partition from starting positions or from ending positions. The reduced wedgelet pattern table may also include at least one omitted wedgelet pattern in at least one wedgelet direction category. For the adjacent-edge partition, the starting positions and the ending positions may correspond to every other even non-corner adjacent-edge samples in a first and a second adjacent edges respectively. For the opposite-edge partition, the starting positions correspond to every other even opposite-edge samples in a first opposite edge and the ending positions include all opposite-edge samples in a second opposite edge.

公开(公告)号：US20170094273A1

公开(公告)日：2017-03-30

申请号：US15375596

申请日：2016-12-12

Applicant: HFI Innovation Inc.

Inventor： Chih-Wei HSU ,  Qian HUANG ,  Jicheng AN ,  Xun GUO ,  Yu-Wen HUANG ,  Shaw-Min LEI

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/86 ,  H04N19/14

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/50 ,  H04N19/82 ,  H04N19/86

Abstract: A method and apparatus for deblocking reconstructed video in a video coding system. The method receives reconstructed pixel data, wherein the reconstructed pixel data is configured into LCUs (largest coding units) and each LCU is divided into blocks. The method then identifies horizontal block edges of the blocks in the LCUs, applies first vertical filtering to the reconstructed pixel data corresponding to one or more first lines above a first horizontal block edge in the first edge group, and applies second vertical filtering to the reconstructed pixel data corresponding to one or more second lines above a second horizontal block edge in the second edge group, wherein a first number of said one or more first lines is smaller than a second number of said one or more second lines.