公开(公告)号：US20170150170A1

公开(公告)日：2017-05-25

申请号：US15222190

申请日：2016-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae-gyoung AHN ,  Dong-yoon KIM ,  Yong-hoon YU ,  Hyung-jun LIM ,  Seong-hoon CHOI

IPC: H04N19/513

Abstract: A video processing method includes generating a first down-sampled block by down-sampling a first block included in a first frame; generating a plurality of second down-sampled blocks by down-sampling a second block included in a second frame; selecting one of the plurality of second down-sampled blocks by comparing the first down-sampled block and each of the plurality of second down-sampled blocks; and determining, based on the first down-sampled block and the one selected second down-sampled block, a motion vector whereby the second block points to the first block, wherein the plurality of second down-sampled blocks are generated using down-sampling methods that are different from each other with respect to samples of the second block.

公开(公告)号：US20170118483A1

公开(公告)日：2017-04-27

申请号：US15181765

申请日：2016-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong-hoon YU ,  Hyung-jun LIM ,  Seong-hoon CHOI ,  Shin-haeng KIM ,  Tae-gyoung AHN

IPC: H04N19/513 ,  H04N19/56

CPC classification number: H04N19/513 ,  H04N19/56 ,  H04N19/57

Abstract: A motion vector estimation method of a motion vector estimation apparatus are provided. The motion vector estimation method of the motion vector estimation apparatus includes: determining a motion vector of a current block by setting, in another frame, a local search area for searching a plurality of reference pixel blocks corresponding to the current block which is one of pixel blocks in a single frame; and finally determining one of the determined motion vector and a previous motion vector referred to in order to determine the local search area as a motion vector of the current block, based on sum of absolution difference (SAD) values of the reference pixel blocks included in the local search area.

公开(公告)号：US20150023424A1

公开(公告)日：2015-01-22

申请号：US14336367

申请日：2014-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyung-jun LIM ,  Tae-gyoung AHN ,  Yong-hoon YU ,  Seong-hoon CHOI

IPC: H04N19/583 ,  H04N19/51

CPC classification number: H04N19/53 ,  H04N19/52

Abstract: A hierarchical motion prediction apparatus and method. The hierarchical motion prediction method splits a current frame and a reference frame into pixel groups, changes a pixel location of each pixel group, and selects one pixel, and thus resolutions of the current frame and reference frame are reduced. A motion vector of a down-sampled current block is obtained based on a down-sampled current frame and reference frame, and is expanded to a motion vector of an original resolution based on a down sampling rate.

Abstract translation: 分层运动预测装置及方法。 分层运动预测方法将当前帧和参考帧分割为像素组，改变每个像素组的像素位置，并选择一个像素，从而减小当前帧和参考帧的分辨率。 基于下采样的当前帧和参考帧获得下采样的当前块的运动矢量，并且基于下采样率将其扩展为原始分辨率的运动矢量。