公开(公告)号：US09967574B2

公开(公告)日：2018-05-08

申请号：US14782535

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Ho-cheon Wey ,  Jae-won Yoon ,  Jin-young Lee ,  Yong-jin Cho

IPC: H04N19/187 ,  H04N19/30 ,  H04N19/70 ,  H04N19/172 ,  H04N19/29 ,  H04N19/44

CPC classification number: H04N19/187 ,  H04N19/172 ,  H04N19/29 ,  H04N19/30 ,  H04N19/44 ,  H04N19/70

Abstract: A method of decoding multi-layer video includes decoding a first layer picture, storing the decoded first layer picture in a decoded picture buffer (DPB), and marking the first layer picture as a short-term reference picture; obtaining interlayer reference picture set (RPS) information regarding a second layer picture having a same first picture order count (POC) as the first layer picture; marking the first layer picture, which is marked as the short-term reference picture, as a long-term reference picture, based on the interlayer RPS information; performing interlayer prediction with respect to the second layer picture with reference to the first layer picture; decoding the second layer picture based on a result of performing the interlayer prediction; and, after the second layer picture is decoded, marking the first layer picture, which is marked as the long-term reference picture, as a short-term reference picture.

公开(公告)号：US10469866B2

公开(公告)日：2019-11-05

申请号：US14782549

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Jae-won Yoon ,  Byeong-doo Choi ,  Ho-cheon Wey ,  Yong-jin Cho

IPC: H04N19/513 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597 ,  H04N19/169

Abstract: Disclosed is a video decoding method including: obtaining a disparity vector having components in sub-pixel unit for interlayer prediction between images belonging to a current layer and a reference layer; determining a position of an integer pixel of the reference layer corresponding to a position indicated by the disparity vector obtained from the position of a current pixel of the current layer; and decoding the image of the current layer by using prediction information on a candidate area of the reference layer corresponding to the determined position of the integer pixel.

公开(公告)号：US10448050B2

公开(公告)日：2019-10-15

申请号：US15096666

申请日：2016-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Jin-young Lee ,  Yong-jin Cho ,  Chan-yul Kim ,  Ho-cheon Wey

IPC: H04N19/597 ,  H04N19/196 ,  H04N19/33 ,  H04N21/44 ,  H04N19/30 ,  H04N19/423 ,  H04N19/70 ,  H04N19/31 ,  H04N19/44

Abstract: Provided are multilayer video encoding/decoding methods and apparatuses. A multilayer video decoding method may comprise obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) with respect to a layer set comprising a plurality of layers; determining a size of the DPB with respect to the layer set based on the obtained information indicating the maximum size of the DPB; and storing a decoded picture of the layer set in the DPB of the determined size.

公开(公告)号：US10349084B2

公开(公告)日：2019-07-09

申请号：US15186883

申请日：2016-06-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Ho-cheon Wey ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/513 ,  H04N19/625

Abstract: An inter-view video decoding method may include determining a disparity vector of a current second-view depth block by using a specific sample value selected within a sample value range determined based on a preset bit-depth, detecting a first-view depth block corresponding to the current second-view depth block by using the disparity vector, and reconstructing the current second-view depth block by generating a prediction block of the current second-view depth block based on coding information of the first-view depth block.

公开(公告)号：US10182234B2

公开(公告)日：2019-01-15

申请号：US15098544

申请日：2016-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Ho-cheon Wey ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/159 ,  H04N19/187 ,  H04N19/176 ,  H04N19/105 ,  H04N19/597 ,  H04N19/30 ,  H04N19/186 ,  H04N19/96

Abstract: An inter-layer video decoding method is described including reconstructing a color image and a depth image of a first layer based on encoding information about the color image and the depth image of the first layer obtained from a bitstream. When it is determined that a prediction mode of a current block of a second layer image to be decoded is a view synthesized prediction mode based on an image synthesized from the first layer image a determination is made whether to perform luminance compensation on the second layer current block to be reconstructed. Use of the view synthesized prediction mode to reconstruct the second layer current block depends on the luminance compensation determination.

公开(公告)号：US10045021B2

公开(公告)日：2018-08-07

申请号：US14782559

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Ho-cheon Wey ,  Jae-won Yoon ,  Jin-young Lee ,  Yong-jin Cho

IPC: H04N19/107 ,  H04N19/50 ,  H04N19/172 ,  H04N19/61 ,  H04N19/187 ,  H04N19/33

Abstract: Provided is a method of reconstructing multilayer images including obtaining RAP picture information of a plurality of layers including a base layer and an enhancement layer, independently decoding a RAP picture of the base layer by using RAP picture information, and independently decoding a RAP picture of the enhancement layer by using RAP picture information.

公开(公告)号：US09819944B2

公开(公告)日：2017-11-14

申请号：US14784173

申请日：2014-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Ho-cheon Wey ,  Jae-won Yoon ,  Jin-young Lee ,  Yong-jin Cho

IPC: H04N19/172 ,  H04N19/507 ,  H04N19/103 ,  H04N19/30 ,  H04N19/70 ,  H04N19/46 ,  H04N19/107 ,  H04N19/157 ,  H04N19/187

CPC classification number: H04N19/172 ,  H04N19/103 ,  H04N19/107 ,  H04N19/157 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/507 ,  H04N19/70

Abstract: Provided is a video decoding method including determining whether a random access point (RAP) picture is positioned in an enhancement layer; determining whether a random access skipped leading (RASL) picture related to the RAP picture is output; and if the RAP picture is positioned in the enhancement layer and the RASL picture is determined not to be output, activating a SPS corresponding to the RAP picture when the RAP picture that is not at a start point of a CVS is decoded.

公开(公告)号：US10368098B2

公开(公告)日：2019-07-30

申请号：US15320538

申请日：2015-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young Lee ,  Min-woo Park ,  Yong-jin Cho

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/187 ,  H04N19/503 ,  H04N19/107

Abstract: Provided is an interlayer video decoding method according to an embodiment including obtaining prediction-mode information of a current block of a depth image from a bitstream, generating a prediction block of the current block on the basis of the prediction-mode information, and decoding the depth image by using the prediction block. The obtaining of the prediction-mode information of the current block from the bitstream includes receiving a first flag, a second flag, and a third flag, wherein the first flag indicates whether prediction of the current block by dividing the current block into two or more partitions according to a pattern is permitted, the second flag indicates whether the depth image permits blocks of the depth image to be predicted by dividing the blocks into two or more partitions by using a wedgelet, and the third flag indicates whether the depth image permits the blocks of the depth image to be predicted by dividing the blocks into two or more partitions by using a contour; and receiving a fourth flag from the bitstream when predetermined conditions determined on the basis of the first to third flags are satisfied, wherein the fourth flag represents information regarding a type of a method of dividing the current block into two or more partitions according to the pattern.

公开(公告)号：US10321142B2

公开(公告)日：2019-06-11

申请号：US14905364

申请日：2014-07-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/33 ,  H04N19/186 ,  H04N19/117 ,  H04N19/103 ,  H04N19/136 ,  H04N19/176 ,  H04N19/187 ,  H04N19/44 ,  H04N19/82 ,  H04N19/59

Abstract: An interlayer video decoding method includes: selecting a luminance compensation model to be applied to a first layer reference block and determining a luminance compensation parameter for the selected luminance compensation model; and compensating for luminance of the first layer reference block by using the luminance compensation parameter and reconstructing a second layer image comprising a second layer current block. The determining of the luminance compensation parameter comprises determining the luminance compensation parameter based on any one of a color component of the second layer current block, information about a type of a picture comprising the second layer current block, and a prediction mode of the second layer current block.

公开(公告)号：US10284876B2

公开(公告)日：2019-05-07

申请号：US14906021

申请日：2014-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Jin-young Lee ,  Dong-gyu Sim ,  Woong Lim ,  Hyun-ho Jo ,  Byeong-doo Choi ,  Min-woo Park ,  Yong-jin Cho

IPC: H04N19/597 ,  H04N19/59 ,  H04N19/11 ,  H04N19/124 ,  H04N19/176 ,  H04N19/122 ,  H04N19/107 ,  H04N19/44 ,  H04N19/159

Abstract: An inter-layer video decoding method according to an embodiment of the present invention may comprise the steps of: obtaining prediction mode information for a current block of a depth image from a bitstream; creating a prediction block of the current block on the basis of the obtained prediction mode information; predicting an average value for the prediction block by using the pixel values of a designated location of the prediction block; and decoding the depth image by using the average value for the prediction block.