公开(公告)号：US11694125B2

公开(公告)日：2023-07-04

申请号：US17465568

申请日：2021-09-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungyeop Yang

IPC: G06N20/20 ,  H04N19/51 ,  H04N19/176 ,  G06N3/08 ,  G06N20/00 ,  H04N19/103 ,  G06T9/00 ,  H04N19/136 ,  G06V20/40

CPC classification number: G06N20/20 ,  G06N3/08 ,  G06N20/00 ,  G06T9/002 ,  G06V20/40 ,  H04N19/103 ,  H04N19/136 ,  H04N19/176 ,  H04N19/51

Abstract: An image encoder for outputting a bitstream by encoding an input image includes a predictive block, a machine learning based prediction enhancement (MLBE) block, and a subtractor. The predictive block is configured to generate a prediction block using data of a previous input block. The MLBE block is configured to transform the prediction block into an enhanced prediction block by applying a machine learning technique to the prediction block. The subtractor is configured to generate a residual block by subtracting pixel data of the enhanced prediction block from pixel data of a current input block.

公开(公告)号：US20220377369A1

公开(公告)日：2022-11-24

申请号：US17743962

申请日：2022-05-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungyeop Yang ,  Sungho Jun

IPC: H04N19/56 ,  H04N19/513 ,  H04N19/176

Abstract: A video encoding method of estimating a motion vector of a current block in a current frame includes identifying a reference block in a reference frame, a first location of the current block within the current frame corresponding to a second location of the reference block within the reference frame, setting a search range in the reference frame, searching for candidate blocks from the search range of the reference frame, each of the candidate blocks satisfying a corresponding first motion estimation criterion of first motion estimation criteria, searching for a prediction block from among the candidate blocks, the prediction block satisfying a second motion estimation criterion, estimating, as the motion vector of the current block, a motion vector corresponding to a displacement between the reference block and the prediction block, and encoding the current block based on the estimated motion vector.

公开(公告)号：US11115673B2

公开(公告)日：2021-09-07

申请号：US15980808

申请日：2018-05-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungyeop Yang

IPC: H04N19/51 ,  H04N19/176 ,  G06K9/66 ,  G06K9/00 ,  G06N3/08 ,  G06N20/00 ,  H04N19/103 ,  G06T9/00 ,  H04N19/136

Abstract: An image encoder for outputting a bitstream by encoding an input image includes a predictive block, a machine learning based prediction enhancement (MLBE) block, and a subtractor. The predictive block is configured to generate a prediction block using data of a previous input block. The MLBE block is configured to transform the prediction block into an enhanced prediction block by applying a machine learning technique to the prediction block. The subtractor is configured to generate a residual block by subtracting pixel data of the enhanced prediction block from pixel data of a current input block.

公开(公告)号：US10893292B2

公开(公告)日：2021-01-12

申请号：US16504916

申请日：2019-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yowon Jeong ,  Giwon Kim ,  Juwon Byun ,  Wonseop Song ,  Jeehoon An ,  Jungyeop Yang

IPC: H04N19/00 ,  H04N19/53 ,  H04N19/112 ,  H04N5/14 ,  H04N19/172 ,  H04N19/182 ,  H04N19/159

Abstract: An electronic circuit includes a block determinator, a candidate selector, and a motion vector generator to perform motion estimation. The block determinator determines a current block and candidate blocks with regard to each of decimated images generated from an original image, wherein the block determinator determines first candidate blocks based on a location of the current block without a full search for all pixels with regard to a first decimated image of the lowest resolution. The candidate selector selects second candidate blocks which are some of the first candidate blocks with regard to a second decimated image of the highest resolution, such that the block determinator determines the second candidate blocks with regard to the original image. The motion vector generator generates a motion vector for the current block based on one reference patch determined from reference patches indicated by candidate motion vectors of the second candidate blocks.