公开(公告)号：US10284869B2

公开(公告)日：2019-05-07

申请号：US15718082

申请日：2017-09-28

Applicant: GOOGLE INC.

Inventor： Jingning Han ,  Yaowu Xu ,  James Bankoski ,  Jia Feng

IPC: H04N19/00 ,  H04N19/51 ,  H04N19/196 ,  H04N19/182 ,  H04N19/176

Abstract: Motion field estimation is used to predict motion within video blocks. A current block of a current frame is identified as a projection of a first reference block of a first reference frame onto the current frame. The projection uses a first motion vector of the reference block with respect to a second reference frame. A temporal motion vector candidate is determined for the current block by projecting the current block onto a second reference frame. The temporal motion vector candidate identifies a second reference block. A motion vector selected from a motion vector candidate list is used to generate a prediction block using the selected motion vector. The current block is coded using the prediction block.

公开(公告)号：US20190098329A1

公开(公告)日：2019-03-28

申请号：US15718082

申请日：2017-09-28

Applicant: GOOGLE INC.

Inventor： Jingning Han ,  Yaowu Xu ,  James Bankoski ,  Jia Feng

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196

Abstract: Motion field estimation is used to predict motion within video blocks. A current block of a current frame is identified as a projection of a first reference block of a first reference frame onto the current frame. The projection uses a first motion vector of the reference block with respect to a second reference frame. A temporal motion vector candidate is determined for the current block by projecting the current block onto a second reference frame. The temporal motion vector candidate identifies a second reference block. A motion vector selected from a motion vector candidate list is used to generate a prediction block using the selected motion vector. The current block is coded using the prediction block.