公开(公告)号：US20190141326A1

公开(公告)日：2019-05-09

申请号：US16236019

申请日：2018-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Se Yoon JEONG ,  Suk Hee CHO ,  Jong Ho KIM ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: H04N19/124 ,  H04N19/33 ,  H04N19/14 ,  H04N19/119 ,  H04N19/196 ,  H04N19/176 ,  H04N19/463 ,  H04N19/70

Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.

公开(公告)号：US20190141325A1

公开(公告)日：2019-05-09

申请号：US16235878

申请日：2018-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Se Yoon JEONG ,  Suk Hee CHO ,  Jong Ho KIM ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: H04N19/124 ,  H04N19/33 ,  H04N19/14 ,  H04N19/119 ,  H04N19/196 ,  H04N19/176 ,  H04N19/463 ,  H04N19/70

Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.

公开(公告)号：US20190045199A1

公开(公告)日：2019-02-07

申请号：US16157217

申请日：2018-10-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/187 ,  H04N19/157 ,  H04N19/107 ,  H04N19/30 ,  H04N19/503

Abstract: A method of decoding a bistream comprising a plurality of layers according to the present invention includes setting parameters for decoding the bitstream from a random access point when random access occurs, and decoding a decoding target picture, wherein the setting of the parameters includes setting an initialization flag indicating whether the decoding target picture, that is an intra random access point (IRAP) picture, is output by correctly decoding all reference layers of a target layer including the decoding target picture when the random access occurs; setting a flag variable (NoRaslOutputFlag) indicating whether the decoding target picture is used as a random access point; and resetting the initialization flag when the decoding target picture is an IRAP picture and the flag variable is 1.

公开(公告)号：US20190037229A1

公开(公告)日：2019-01-31

申请号：US16134579

申请日：2018-09-18

Applicant: Electronics and Telecommunications Research Institute ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Ho KIM ,  Hui Yong KIM ,  Se Yoon JEONG ,  Sung Chang LIM ,  Ha Hyun LEE ,  Jin Ho LEE ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN ,  Mun Churl KIM ,  Bum Shik LEE

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/593 ,  H04N19/18 ,  H04N19/64 ,  H04N19/70

Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.

公开(公告)号：US20180316924A1

公开(公告)日：2018-11-01

申请号：US16018405

申请日：2018-06-26

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong KIM ,  Gwang Hoon PARK ,  Kyung Yong KIM ,  Sang Min KIM ,  Sung Chang LIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/159 ,  H04N19/436 ,  H04N19/122 ,  H04N19/124 ,  H04N19/176

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/176 ,  H04N19/436 ,  H04N19/503 ,  H04N19/51 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61

Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.

公开(公告)号：US20180234678A1

公开(公告)日：2018-08-16

申请号：US15954432

申请日：2018-04-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Jong Ho KIM ,  Hae Chul CHOI ,  Hui Yong KIM ,  Ha Hyun LEE ,  Jin Ho LEE ,  Se Yoon JEONG ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woo HONG ,  Jin Woong KIM

IPC: H04N19/105 ,  H04N19/593 ,  H04N19/176 ,  H04N19/157 ,  H04N19/11 ,  H04N19/503 ,  H04N19/46

Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.

公开(公告)号：US20180205966A1

公开(公告)日：2018-07-19

申请号：US15878870

申请日：2018-01-24

Applicant: Electronics and Telecommunications Research Institute. ,  Industry-Academic Cooporation Group of Sejong University.

Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Jong Ki HAN ,  Jae Yung LEE

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/70 ,  H04N19/31 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/177

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/184 ,  H04N19/31 ,  H04N19/70

Abstract: The present invention is related to a method for moving the position of a base view from an arbitrary GOP (Group Of Pictures) start position to implement an efficient encoding structure in multi-view video encoding. The existing multi-view video encoding method exhibits low encoding efficiency when correlation between the base view and a dependent view is low, since the base view is assumed to be fixed. Moreover, in case the view in a live broadcasting program desired by a producer changes from the base view to another, the user has to consume more bit streams and decoder complexity than those consumed when decoding is performed with respect to the base view. Therefore, to alleviate the drawbacks of the existing multi-view video encoding method, the present invention provides a method for designing syntax elements by which the base view can be moved, thereby supporting an efficient encoding structure.

公开(公告)号：US20180176553A1

公开(公告)日：2018-06-21

申请号：US15894973

申请日：2018-02-13

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Se Yoon JEONG ,  Hui Yong KIM ,  Sung Chang LIM ,  Jin Ho LEE ,  Ha Hyun LEE ,  Jong Ho KIM ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN ,  Gwang Hoon PARK ,  Kyung Yong KIM ,  Han Soo LEE ,  Tae Ryong KIM

IPC: H04N19/10 ,  H04N19/61 ,  H04N19/105 ,  H04N19/196

CPC classification number: H04N19/10 ,  H04N19/105 ,  H04N19/136 ,  H04N19/196 ,  H04N19/197 ,  H04N19/46 ,  H04N19/61

Abstract: According to one embodiment of the present invention, a video information encoding method comprises: a step of predicting information of the current coding unit to generate prediction information; and a step of determining whether the information of the current coding unit coincides with the prediction information. If the information of the current coding unit coincides with the prediction information, a flag indicating that the information of the current coding unit coincides with the prediction information is encoded and transmitted. If the information of the current coding unit does not coincide with the prediction information, a flag indicating that the information of the current coding unit does not coincide with the prediction information is encoded and transmitted and the information of the current coding unit is encoded and transmitted. In the step of generating prediction information, the prediction information may be generated using the information on the coding unit adjacent to the current coding unit.

公开(公告)号：US20180160143A1

公开(公告)日：2018-06-07

申请号：US15888264

申请日：2018-02-05

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-ACADEMIC COOPERATION GROUP OF SEJONG UNIVERSITY

Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Jong Ki HAN ,  Jae Yung LEE

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/70 ,  H04N19/31 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/177

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/184 ,  H04N19/31 ,  H04N19/70

Abstract: The present invention is related to a method for moving the position of a base view from an arbitrary GOP (Group Of Pictures) start position to implement an efficient encoding structure in multi-view video encoding. The existing multi-view video encoding method exhibits low encoding efficiency when correlation between the base view and a dependent view is low, since the base view is assumed to be fixed. Moreover, in case the view in a live broadcasting program desired by a producer changes from the base view to another, the user has to consume more bit streams and decoder complexity than those consumed when decoding is performed with respect to the base view. Therefore, to alleviate the drawbacks of the existing multi-view video encoding method, the present invention provides a method for designing syntax elements by which the base view can be moved, thereby supporting an efficient encoding structure.

公开(公告)号：US20180146202A1

公开(公告)日：2018-05-24

申请号：US15875293

申请日：2018-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/463 ,  H04N19/52 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/187 ,  H04N19/105 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70

Abstract: Disclosed are a method and an apparatus for image encoding/decoding that support a plurality of layers. The method for image decoding that supports a plurality of layers includes decoding information of a first layer which a picture of a second layer including a current decoding target block refers to; mapping the information of the first layer to a picture size of the second layer, configuring a reference picture list for the picture of the second layer by adding the mapped information of the first layer and generating prediction samples of the current decoding target block by predicting the current decoding target block of the second layer based on the reference picture list, and the information of the first layer includes at least one of a sample value and motion information of the first layer picture.