Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Lg Display Co., Ltd.

Vivo Mobile Communication Co., Ltd.

Yongjoon Jeon

Seungwook Park

Byeongmoon Jeon

Joonyoung Park

Jaehyun Lim

Jungsun Kim

Younghee Choi

Jaewon Sung

Hendry Hendry

Chulkeun Kim

Naeri Park

Eunyong Son

Jin Seong Heo

Moonmo Koo

Sunmi Yoo Yoo

Junghak Nam

Sangoh Jeong

Hyeongmoon Jang

Jingyeong Kim

Taeil Chung

Sangchul Kim

Geonsoo Kim

Seokhyo Cho

Bokun Choi

Dongho Jang

Minkyung Hwang

Nojoon Park

Donghyun Yeom

Geon-Soo Kim

Piljoo Yoon

Doosuk Kang

Jihyun Kim

Gajin Song

Junghun Kim

Junhyung Park

Taehee Lee

Kyungtae Kim

Hyunsoo Kim

Nakyoung Han

Hanjib Kim

Chul Keun Kim

Hyojung Lee

Seoungwook Park

Sang Oh Jeong

Byeong Moon Jeon

Dongwoo Kim

Jinwoo Lee

Minchul Kim

Seongho Cho

Jaehwan Kim

SeokHyo Cho

Sunkee Lee

Youhong Cha

Jongmu Choi

Daeyoung Kim

Hyungsup Byeon

Dongkyu Yoon

Daekyu Shin

Han-Jib Kim

Inhwan Hwang

Sooji Hwang

KwangHyung Lee

Sangwook Shin

Inhyuk Choi

Sangmi Park

Sungi Hong

Jongkyu Lee

Jinhe Jung

Seokhyun Yoon

Ikhwan Cho

Kyusung Cho

Dongyeop Kim

Sungoh Hwang

Wonsuk Lee

Jingil Yang

Kwangweon Park

Wooup Kwon

Suhyung Ha

Sinjae Kang

Kyungeun Lee

Jinyeong Lee

Jaewoo Suh

Dongeup Ham

Kang-Soo Lee

Kibong Choi

Seungsoo Woo

Hogil Gwak

Beyongmoon Jeon

Jae Woo Seol

Richard Bone

Jisu Yun

Wonbum Kim

Hyunjung Byun

Inwook Song

Sangim Yu

The present disclosure relates to a technique for encoding and decoding video data, and more particularly, to a method for performing inter-prediction in an effective manner. The present disclosure combines an inter-prediction method using an AMVP mode and an inter-prediction method using a merge mode so as to propose a method for using the same candidate. The method for encoding video data proposed by the present disclosure comprises the following steps: receiving mode information on an inter-prediction method of a current block; determining, on the basis of the received mode information, whether the interprediction method to be applied to the current block is an AMVP mode or a merge mode; and selecting a candidate to derive motion information of the current block, wherein the candidate is selected in a left region, top region and corner region of the current block and in the same position block as the current block, and the AMVP mode and the merge mode are applied on the basis of the selected candidate.

Method for encoding and decoding video, and apparatus using same

The present invention relates to a method and apparatus for encoding or decoding a video signal. According to the present invention, a plurality of reference units for image prediction of the current unit is acquired and combined to obtain a unit prediction value, thereby improving the accuracy of image prediction. More particularly, the present invention relates to a method for inducing a variety of reference units using a motion vector prediction value or a motion vector which is used in conventional inter-prediction, and also relates to a method which combines the reference units so as to obtain the prediction value for the current unit. In addition, the present invention relates to a method which involves acquiring a plurality of reference units for a merging mode, and combining the reference units so as to perform image prediction.

Method and apparatus for processing a video signal

A video decoding method performed by a decoding apparatus includes the steps of: deriving control points (CP) for a current block; acquiring movement vectors for the CPs; deriving a sample unit movement vector in the current block on the basis of the acquired movement vectors; and deriving a prediction sample for the current block on the basis of the sample unit movement vector. According to the present invention, it is possible to effectively perform, through sample unit motion vectors, inter-prediction not only in a case where an image in the current block is plane-shifted but also in a case where there are various image distortions.

Inter prediction method and apparatus in video coding system

In the present invention, a method for processing an image on the basis of an intra prediction mode and an apparatus therefor are disclosed. Particularly, the method for processing an image on the basis of an intra prediction mode may comprise the steps of: partitioning a block to be processed, on the basis of an intra prediction mode of the block to be processed; and performing intra prediction for the split block to be processed, wherein the direction in which the block to be processed is split is perpendicular to the prediction direction of the intra prediction mode of the block to be processed.

Method for processing image on basis of intra prediction mode and apparatus therefor

An image decoding method according to the present invention comprises the steps of: acquiring information to form a reference picture set of a current picture by entropy decoding the received bitstream information; and performing prediction on a prediction block inside the current picture by using a reference picture list which is formed based on the reference picture set.

Method and device for transmitting image information, and decoding method and device using same

Disclosed are a method for partitioning a block and a decoding device. A method for decoding an image comprises the steps of: partitioning one prediction unit, in which an intra prediction is performed in a predetermined intra prediction mode, into a plurality of transform units; and performing the intra prediction for each of the plurality of the transform units on the basis of the predetermined intra prediction mode. Thus, the invention increases the image encoding efficiency.

Method for partitioning block and decoding device

A method for image decoding, according to the present invention, includes the following steps: receiving image information including a plurality of filter coefficients; generating a restored block for a current block on the basis of the image information; and applying an adaptive loop filter to the restored block on the basis of the plurality of filter coefficients. According to the present invention, image encoding efficiency may be improved, and complexity may be reduced.

Method for encoding/decoding image and device thereof

The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block, which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

Intra-prediction method, and encoder and decoder using same

Display screen

The method for deriving a temporal motion vector predictor according to the present invention comprises the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit. The present invention enhances image compression efficiency.

Method for encoding image and non-transitory computer readable storage medium storing a bitstream generated by a method

An image encoding/decoding method and apparatus are provided. An image decoding method may comprise obtaining, from a bitstream, a feature set extracted from an input image using an artificial neural network-based feature extraction method, first information on importance of each of a plurality of channels included in the feature set and second information on a quantization method of the feature set, decoding the feature set, the first information and the second information, and dequantizing the decoded feature set based on the decoded first information and the decoded second information. The second information may comprise the number of quantization bits of each of the plurality of channels, and the number of quantization bits may be determined based on the importance of each of the plurality of channels.

Image encoding/decoding method and device for performing feature quantization/ de-quantization, and recording medium for storing bitstream

A method for signalling an intra chroma prediction mode and a method for implementing the signalled intra chroma prediction mode, the intra chroma prediction mode taking an intropolation of previously predicted luma samples from neighboring blocks of video data to attain an intra chroma prediction of a current chroma prediction unit.

Method and apparatus for processing video data

A video transmission method according to embodiments may comprise the steps of: encoding video data; and transmitting the video data. A video reception method according to embodiments may comprise the steps of: receiving video data; and decoding the video data.

Video transmission method, video transmission device, video reception method, and video reception device

The present invention relates to a technique for encoding and decoding video data, and more particularly, to a method for performing inter-prediction in an effective manner. The present invention combines an inter-prediction method using an AMVP mode and an inter-prediction method using a merge mode so as to propose a method for using the same candidate. The method for encoding video data proposed by the present invention comprises the following steps: receiving mode information on an inter-prediction method of a current block; determining, on the basis of the received mode information, whether the interprediction method to be applied to the current block is an AMVP mode or a merge mode; and selecting a candidate to derive motion information of the current block, wherein the candidate is selected in a left region, top region and corner region of the current block and in the same position block as the current block, and the AMVP mode and the merge mode are applied on the basis of the selected candidate.

The present invention relates to a method for signaling image information and to a decoding method using same. The method for signaling image information according to the present invention comprises: a step of performing inter-prediction for a current picture; and a step of signaling information including the result of said inter-prediction and reference picture information indicating reference pictures usable in said inter prediction, wherein said reference picture information contains pieces of picture order count (POC) information of said usable reference pictures. The POC information of said usable reference pictures in said reference picture information is configured such that POCs for the pictures existing before said current picture in terms of a POC sequence are located at the front, and POCs for the pictures existing after said current picture in terms of a POC sequence are located following the POCs located at the front.

Method and apparatus for signaling image information, and decoding method and apparatus using same

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Seoul, South Korea

Yongjoon Jeon