Electronics and Telecommunications Research Institute

University-industry Cooperation Group of Kyung Hee University

Korea Advanced Institute of Science and Technology

Kwangwoon University Industry-academic Collaboration Foundation

Kookmin University

Intellectual Discovery Co., Ltd.

Dolby Laboratories Licensing Corporation

Korea Telecommunication Authority

Industry-university Cooperation Foundation Korea Aerospace University

Other

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Lg Energy Solution, Ltd.

Sk Innovation Co., Ltd.

Postech Academy-industry Foundation

Sk Biopharmaceuticals Co., Ltd.

Jin Woong Kim

Jin Soo Choi

Jin Ho Lee

Hui Yong Kim

Sung Chang Lim

Ha Hyun Lee

Gwang Hoon Park

Se Yoon Jeong

Kyung Yong Kim

Jong Ho Kim

Suk Hee Cho

Chie Teuk Ahn

Jung Won Kang

Yong Ju Lee

Seung Kwon Beack

Kyeong Ok Kang

Jeong Il Seo

Tae Jin Lee

Jin Woo Hong

Sang Min Kim

Dae Young Jang

Jong Mo Sung

Hae Chul Choi

Jae Hyoun Yoo

Sukhee Cho

Sang Yong Lee

Tae Jin Park

Jae Gon Kim

Sung-Chang Lim

Hae-Chul Choi

Jinho Lee

Jongho Kim

Keun Woo Choi

Hahyun Lee

Jin Suk Kwak

Mun Churl Kim

Bum Shik Lee

Dong Gyu Sim

Sea Nae Park

Sung Hoon Kim

Seoung Jun Oh

Chan Woong Jeon

Dong Wook Kang

Kyeong Hoon Jung

Hyon Gon Choo

Kyeongok Kang

Chieteuk Ahn

Joo Young Lee

Suk Jin Hong

Kyung Ae Moon

Jae-hyoun Yoo

Sung-Hoon Kim

Yong Ju Cho

Ji Hun Cha

Seong Yong Lim

Tae One Kim

Hyun Eui Kim

Myung Seok Ki

Min Soo Kim

Soo In Lee

Jeongil Seo

Kug Jin Yun

Ji-Hoon Choi

Namho Hur

Chung Hyun Ahn

In Seon Jang

Min-Sik Park

Rehan Hafiz

Hyun Jun Lee

Stefan Geyersberger

Yong Suk Kim

Harald Popp

Gwang Soon Lee

Inseon Jang

Jooyoung Lee

Sang Il Lee

Tae Yun Kim

Young-Kwon Lim

Yoon-Jin Lee

Ki Chul Kim

Joo Myoung Seok

Yong Man Ro

Eun Young Chang

Jeho Nam

Seung Won Jung

Hye Ri Kim

Eung Don Lee

Wolfgang Fiesel

Young Kwon Lim

Jae Sung Park

Sung Jea Ko

Byong Sung Kwak

Jae Han Kim

Joo Hong Jeong

Kwanghee Jung

A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

Method and device for encoding/decoding images

A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.

Video decoding method and apparatus using the same

The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

Apparatus for encoding and decoding image by skip encoding and method for same

Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.

Intra prediction mode encoding/decoding method and apparatus for same

Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.

Method for determining color difference component quantization parameter and device using the method

The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.

Method for encoding and decoding quantized matrix and apparatus using same

The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to 5 grasp information on the layers in the bit stream.

Decoding method and device for bit stream supporting plurality of layers

Disclosed are a method and an apparatus for coding/decoding an image. The method for decoding the image comprises the steps of: deriving a scale factor of a current block, depending on whether the current block is a conversion skip block; and scaling the current block on the basis of the scale factor, wherein the scale factor of the current block is derived on the basis of the position of a conversion coefficient inside the current block, and wherein the conversion skip block is the current block to which conversion is not applied and is specified on the basis of information indicating whether to apply reconversion to the current block.

Method and apparatus for coding/decoding image

The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.

Image information decoding method, image decoding method, and device using same

Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

Apparatus and method for processing multi-channel audio signal

The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).

Video encoding and decoding methods and device using same

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.

Method for encoding/decoding block information using quad tree, and device for using same

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.

Adaptive video encoding device and method, and appartus using same

Adaptive video decoding and encoding method, and apparatus using same

Growing community of inventors

Daejeon, South Korea

Jin Woong Kim