公开(公告)号：US20200036980A1

公开(公告)日：2020-01-30

申请号：US16514326

申请日：2019-07-17

Applicant: QUALCOMM Incorporated

Inventor： Han Huang ,  Wei-Jung Chien ,  Marta Karczewicz

IPC: H04N19/139 ,  H04N19/11 ,  H04N19/176 ,  H04N19/132 ,  H04N19/46

Abstract: An example method includes coding a value of a motion vector difference (MVD) for a current block of video data; obtaining, from a motion vector (MV) buffer, a value of a motion vector predictor (MVP) for the current block of video data; determining a resolution of the value of the MVD for the current block; obtaining a storage resolution shift amount for MVs; rounding, based on the storage resolution shift amount, the value of the MVD obtained from the MV buffer directly to the resolution of the value of the MVD; adding the rounded value of the MVP to the value of the MVD to obtain a value of a MV for the current block; obtaining, based on the MV for the current block, samples of a predictor block for the current block; and reconstructing samples of the current block based on the samples of the predictor block.

公开(公告)号：US20190387249A1

公开(公告)日：2019-12-19

申请号：US16443130

申请日：2019-06-17

Applicant: QUALCOMM Incorporated

Inventor： Han Huang ,  Wei-Jung Chien ,  Marta Karczewicz

IPC: H04N19/513 ,  H04N19/44

Abstract: A method of decoding video data includes receiving a plurality of blocks of video data, wherein each block of the plurality of blocks is encoded using a respective affine motion model of a plurality of affine motion models, and decoding the plurality of blocks of video data using the same affine motion field derivation process for each of the plurality of affine motion models.