公开(公告)号：US20190246145A1

公开(公告)日：2019-08-08

申请号：US16387251

申请日：2019-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook PARK ,  Jaehyun LIM ,  Yongjoon JEON ,  Chulkeun KIM ,  Jungsun KIM ,  Naeri PARK ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/86 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/117 ,  H04N19/134 ,  H04N19/176 ,  H04N19/159 ,  H04N19/172 ,  H04N19/196 ,  H04N19/136 ,  H04N19/82

Abstract: The present invention relates to a deblocking filtering method, a method for inducing bs (boundary strength) therefor, and a method and an apparatus for encoding/decoding using the same. The method for inducing the bS of the present invention comprises the steps of: inducing a boundary of a deblocking filtering unit block as a unit block for applying the deblocking filtering; and setting the bS according to each bS setting unit block within the deblocking filtering unit block, wherein the bS setting step can set a bS value for a target boundary corresponding to a boundary of the deblocking filtering unit block as the bs setting unit block

公开(公告)号：US20190068978A1

公开(公告)日：2019-02-28

申请号：US16173825

申请日：2018-10-29

Applicant: LG Electronics Inc.

Inventor： Yongjoon JEON ,  Seungwook PARK ,  Jaehyun LIM ,  Chulkeun KIM ,  Jungsun KIM ,  Naeri PARK ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK

IPC: H04N19/159 ,  H04N19/57 ,  H04N19/52 ,  H04N19/436 ,  H04N19/43 ,  H04N19/176 ,  H04N19/105

Abstract: According to the present invention, an inter prediction method comprises the steps of: generating a merge candidate list for a block to be predicted, wherein the block is to correspond to a current prediction unit; deriving, on the basis of one of a plurality of merge candidates constituting the merge candidate list, motion information on the block to be predicted; and performing, on the basis of the derived motion information, a prediction on the block to be predicted so as to generate a prediction block corresponding to the current prediction unit.

公开(公告)号：US20190028712A1

公开(公告)日：2019-01-24

申请号：US16137379

申请日：2018-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Chulkeun KIM ,  Byeongmoon JEON ,  Jungsun KIM

IPC: H04N19/159 ,  H04N19/577 ,  H04N19/187 ,  H04N19/573 ,  H04N19/33 ,  H04N19/463 ,  H04N19/105 ,  H04N19/176 ,  H04N19/172 ,  H04N19/503 ,  H04N19/30 ,  H04N19/46

Abstract: The present invention relates to a method for coding a scalable video in a multilayer structure, and a method for encoding a video according to the present invention comprises the steps of: decoding and saving a picture of a reference layer; inducing an interlayer reference picture which is referenced for predicting a current block of a current layer; producing a reference picture list including the interlayer reference picture and a reference picture of the current layer; conducting a prediction on the current block of the current layer with the reference picture list to induce a prediction sample with respect to the current block; inducing a recovery sample with respect to the current block based on the prediction sample and the prediction block with respect to the current block; and transmitting reference information for indicating a picture that can be used for interlayer prediction from the pictures of the reference layer.

公开(公告)号：US20180255312A1

公开(公告)日：2018-09-06

申请号：US15971724

申请日：2018-05-04

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Jungsun KIM ,  Chulkeun KIM ,  Byeongmoon JEON ,  Sangoh JEONG

IPC: H04N19/44 ,  H04N19/31 ,  H04N19/70 ,  H04N19/169

Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

公开(公告)号：US20180199069A1

公开(公告)日：2018-07-12

申请号：US15736234

申请日：2016-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Junghak NAM ,  Chulkeun KIM

IPC: H04N19/70 ,  H04N19/176 ,  H04N19/44 ,  H04N19/117 ,  H04N19/91

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/119 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/82 ,  H04N19/91 ,  H04N19/96

Abstract: Disclosed are a method for encoding/decoding an image, and a device therefor. Specifically, the present invention comprises: a step of parsing, from a bit stream outputted from an encoder, a sample adaptive offset (SAO) in first block units in which the SAO is transmitted; a step of obtaining a reconstructed picture from the bit stream; and a step of summing combining the SAO, parsed to each pixel in the first block units from the reconstructed picture, wherein the first block units may be variably determined by the encoder.

公开(公告)号：US20180199034A1

公开(公告)日：2018-07-12

申请号：US15736238

申请日：2016-06-16

Applicant: LG Electronics Inc.

Inventor： Junghak NAM ,  Chulkeun KIM

IPC: H04N19/117 ,  H04N19/182 ,  H04N19/176 ,  H04N19/513

Abstract: The present invention relates to a method for performing adaptive filtering according to a block boundary, comprising the steps of: determining whether a current pixel is within a block boundary; determining the shape of a filter depending on the location of the current pixel, when the current pixel is within the block boundary; calculating a filter coefficient based on the shape of the filter; and performing an adaptive loop filtering using the filter coefficient.

公开(公告)号：US20180197276A1

公开(公告)日：2018-07-12

申请号：US15737552

申请日：2016-02-02

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Junghak NAM

IPC: G06T5/00 ,  G06T5/10 ,  G06T5/20

CPC classification number: G06T5/001 ,  G06T5/10 ,  G06T5/20 ,  H04N19/117 ,  H04N19/70 ,  H04N19/82 ,  H04N19/85

Abstract: A restoring picture filtering method performed by a decoding device, according to the present invention, comprises the steps of: calculating the activity of an image of a target region of a restoring picture; determining the directivity of the image of the target region; selecting a particular filter within a filter set on the basis of the activity and the directivity; and performing filtering on the restoring picture on the basis of the selected filter. According to the present invention, adaptive filtering may be applied on the basis of image properties of a target block of a restoring picture, and the objective/subjective image quality of the restoring picture may be enhanced therethrough.

公开(公告)号：US20180048890A1

公开(公告)日：2018-02-15

申请号：US15555424

申请日：2016-02-02

Applicant: LG Electronics Inc.

Inventor： Chulkeun KIM ,  Junghak NAM ,  Seungwook PARK ,  Sehoon YEA

IPC: H04N19/117 ,  H04N19/46

CPC classification number: H04N19/117 ,  H04N19/46 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: The present invention provides a method for decoding a video signal. The method includes: obtaining filtering flag information indicating whether to perform filtering for a target unit; obtaining a filter parameter based on the filtering flag information, the filter parameter including at least one of a base filter kernel and a modulation weight; and performing filtering for the target unit using the filter parameter, wherein the filter parameter corresponds to a temporal filter parameter or a spatial filter parameter, and the temporal filter parameter is used to minimize the difference between an original image and a reference image, and the spatial filter parameter is used to minimize the difference between the original image and a reconstructed image.

公开(公告)号：US20180027253A1

公开(公告)日：2018-01-25

申请号：US15723304

申请日：2017-10-03

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Jungsun KIM ,  Chulkeun KIM ,  Byeongmoon JEON ,  Sangoh JEONG

IPC: H04N19/44 ,  H04N19/169 ,  H04N19/70 ,  H04N19/31

CPC classification number: H04N19/44 ,  H04N19/188 ,  H04N19/31 ,  H04N19/70

Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

公开(公告)号：US20170171551A1

公开(公告)日：2017-06-15

申请号：US15445290

申请日：2017-02-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Chulkeun KIM ,  Byeongmoon JEON ,  Jungsun KIM

IPC: H04N19/30 ,  H04N19/46 ,  H04N19/86 ,  H04N19/44

CPC classification number: H04N19/30 ,  H04N19/174 ,  H04N19/184 ,  H04N19/29 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70 ,  H04N19/86

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and parsing a parameter set including indication information which indicates the presence of withheld information to be used in the future; receiving and parsing a slide header including the withheld information, when the indication information indicates the presence of the withheld information; and decoding the image according to semantics and a value corresponding to the withheld information. As a result, provided are a method and an apparatus for describing an additional extension information indication in a bitstream supporting a hierarchical image.