公开(公告)号：US10694190B2

公开(公告)日：2020-06-23

申请号：US15716995

申请日：2017-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-kwon Na ,  Ki-won Yoo ,  Doo-hyun Kim

IPC: H04N19/159 ,  H04N19/167 ,  H04N19/182 ,  H04N19/119 ,  H04N19/176 ,  H04N19/433 ,  H04N19/129

Abstract: A processing apparatus has a processor including a first memory. The processor divides a frame in video content into a plurality of coding units (CUs), and encodes the plurality of CUs in a diagonal direction to generate an encoded frame, wherein when a first CU is encoded based on a first encoding type, the processor is further configured to load, from a second memory, a first partial region of a reference frame corresponding to first position information of the first CU to the first memory and encode the first CU based on the first partial region of the reference frame loaded from the second memory, and wherein, when the first CU is encoded based on a second encoding type, the processor is further configured to encode the first CU based on a first reference pixel value corresponding to the first position information of the first CU from the first memory.

公开(公告)号：US10250879B2

公开(公告)日：2019-04-02

申请号：US15500756

申请日：2015-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-dae Kim ,  Ki-won Yoo ,  Jae-moon Kim ,  Sang-kwon Na

IPC: H04N7/12 ,  H04N19/117 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/157 ,  H04N19/82

Abstract: A video encoding apparatus comprises an encoder encoding input video; a decoder decoding video data, and a filter to compensate for a pixel value of the encoded video data. An adaptive loop filter (ALF) parameter predictor generates an ALF filter parameter using the decoded video data. The ALF filter parameter is applied to an ALF filter to compensate a current pixel by using a pixel adjacent to the current pixel and a filter coefficient with respect to the neighboring pixel; a sample adaptive offset (SAO) filter unit applied to the decoded video data compensates for a current pixel by using at least one of an edge offset and a band offset; an ALF filter unit applies the ALF filter parameter, the ALF filter to video data to which the SAO filter has been applied; and an entropy encoder performs entropy encoding on the ALF filter parameter.

公开(公告)号：US10154263B2

公开(公告)日：2018-12-11

申请号：US15184272

申请日：2016-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Seoul National University R&DB Foundation

Inventor： Sang-kwon Na ,  Soo-ik Chae ,  Ki-won Yoo ,  Soon-woo Choi ,  Wook-seok Jeong

IPC: H04N19/124 ,  H04N19/567 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44

Abstract: Provided is a video encoding method including: calculating a difference value between a rate-distortion (R-D) cost of a first coefficient level from among coefficient levels of a sub-block and an R-D cost of a second coefficient level adjacent to the first coefficient level by using a distortion difference calculated by using an integer of the first coefficient level and an integer of the second coefficient level and a rate variation between the first coefficient level and the second coefficient level; selecting one of the integer values of the first and second coefficient levels as a modified value of the first coefficient level based on the difference value; and outputting the modified value of the first coefficient level.