Kwangwoon University Industry-academic Collaboration Foundation

Hyundai Motor Company

Electronics and Telecommunications Research Institute

Kia Corporation

University-industry Cooperation Group of Kyung Hee University

Intellectual Discovery Co., Ltd.

Kia Motors Corporation

Korea Advanced Institute of Science and Technology

Hanwha Techwin Co., Ltd.

Hanwha Vision Co., Ltd.

Samsung Electronics Co., Ltd.

Dolby Laboratories Licensing Corporation

Kaonmedia Co., Ltd.

Dong Gyu Sim

Sea Nae Park

Seung Wook Park

Wha Pyeong Lim

Gwang Hoon Park

Se Yoon Jeong

Jin Soo Choi

Hae Chul Choi

Ha Hyun Lee

Jin Woo Hong

Jung Hak Nam

Jong Seok Lee

Sung-Chang Lim

Joo Hyung Byeon

Seoung Jun Oh

Hui Yong Kim

Seoung-Jun Oh

Chang-Beom Ahn

Sea-Nae Park

Seung Ryong Kook

Kwang-Su Jeong

Jong Ho Kim

Suk Hee Cho

Jin Ho Lee

Hyo Min Choi

Sung Chang Lim

Yong Jo Ahn

Jin Woong Kim

Ho Chan Ryu

Jun Taek Park

Chie Teuk Ahn

Hyun Ho Jo

Chan Woong Jeon

Jung Won Kang

Han Sol Choi

Seanae Park

Byung Tae Oh

Byung Cheol Song

Hyung Ho Jo

Mun Churl Kim

Neung Joo Hwang

Kyung Yong Kim

Gun Bang

Kyeong Hye Kim

Jin Seong Heo

Hyun Woo Lee

Dong San Jun

Hyun Suk Ko

Shi Hwa Lee

Won Geun Ryu

Min Soo Kim

Doo Hyun Kim

Dong Kyu Lee

Joon Ho Song

Hoa Sub Lim

Jeong Yun Lim

Hyun Ho Cho

Eun Kyung Ryu

Jung Han Seo

Seoung Hwi Kim

Ho Yeon Lee

Myung Oh Hong

A block splitting structure is disclosed for efficient prediction and transform, and a method and an apparatus are disclosed for video encoding and decoding using the block Splitting structure. In particular, the method and apparatus are capable of splitting a video data block into two regions or blocks including an L-shaped block and a rectangular block and thus efficiently perform prediction on each block.

Block splitting structure for efficient prediction and transform, and method and apparatus for video encoding and decoding using the same

A method and an apparatus are disclosed for video coding using a mapping of residual signals. The video coding method and the apparatus enable the video encoding device to transmit mapping data related to a mapping of the residual signals of the current block to improve video coding efficiency and enhance video quality. The video coding method and the apparatus enable the video decoding device to decode the residual signals based on the mapping data.

Method and apparatus for video coding using mapping of residual signals

A method and an apparatus for video coding based on mapping are disclosed. The video coding method and the apparatus generate a prediction block of a current block with reference to a mapped image when a video encoding apparatus transmits mapping data related to a mapping of the image and a video decoding apparatus decodes the current block based on the mapping data.

Method and apparatus for video coding based on mapping

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

A video decoding method for decoding a target block using intra prediction comprises decoding, from a bitstream, boundary line information specifying at least one boundary line for partitioning the target block. The boundary line information allows partitioning the target block into a plurality of non-rectangular blocks. The method further comprises determining intra prediction modes for the non-rectangular blocks based on the boundary line information; generating a prediction block of the target block by performing intra prediction on each of the non-rectangular blocks using the intra prediction modes; reconstructing a residual block of the target block from the bitstream; and reconstructing the target block by adding the prediction block and the residual block.

Video encoding and decoding using arbitrary block partitioning

A method and a device for inversely transforming transform coefficients of a current block are disclosed. A method for predicting a current block according to a first mode, includes the steps of: on the basis of a partition mode syntax element, partitioning the current block into non-rectangular blocks; determining an intra-predicted intra block and an inter-predicted inter block among the non-rectangular blocks; and deriving prediction samples of a first area including the inter block on the basis of motion information, and deriving prediction samples of a second area including the intra block on the basis of an intra prediction mode.

Decoding device and method for predicting block partitioned into random shape

A method is executed to efficiently operate a bin buffer to limit a bin-to-bit ratio in entropy encoding and decoding related to bitstream generation and parsing. In addition, a method of configuring a list includes various entropy encoding/decoding methods and adaptively uses the entropy encoding/decoding methods for each basic unit of entropy encoding/decoding.

Entropy-coding for video encoding and decoding

A method and an apparatus for video coding using derivation of intra prediction modes are disclosed. The video coding method and the video coding apparatus derive the intra prediction mode of a current block using pre-restored, neighboring reference sample values and generate a prediction block of the current block based on the derived prediction mode.

Method and apparatus for video coding using derivation of intra prediction mode

The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.

Image encoder and decoder using unidirectional prediction

A method of generating a prediction block and a device using same use a weighted-sum of an intra-prediction signal and an inter-prediction signal. The method includes: determining that a current block of the video data is to be encoded in a weighted-sum prediction mode; splitting the current block into two or more subblocks; determining, for each of the subblocks, a weight set including a first weight for an intra-prediction signal of the current block and a second weight for an inter-prediction signal of the current block, the subblocks having different weight sets; and determining a prediction block of the current block based on a weighted-sum of the intra-prediction signal and the inter-prediction signal, the weighted-sum being dependent on the weight set that is determined for each of the subblocks.

Method for generating prediction block by using weighted-sum of intra prediction signal and inter prediction signal, and device using same

A method is configured to process a bitstream generated by encoding a sequence of pictures partitioned into a plurality of subpictures. The method includes steps of: decoding, from the bitstream, partitioning information indicating a partitioning structure in which the pictures belonging to the sequence are partitioned into the subpictures; decoding ID information for the subpictures and mapping an ID to each of the subpictures by using the ID information; and reconstructing blocks within at least one subpicture by using the mapped ID.

Method and apparatus for encoding and decoding video using sub-picture partitioning

A method and an apparatus are configured for intra prediction coding of video data. An apparatus for decoding video data includes: a decoding unit which obtains, from a bitstream, information on a luma prediction mode and information on a chroma prediction mode of a current coding block; and an intra prediction unit which generates luma prediction samples and chroma prediction samples of the current coding block. The intra prediction unit derives a luma intra prediction type and a luma intra prediction mode of the current coding block on the basis of the information on the luma prediction mode, and determines a chroma intra prediction mode of the current coding block on the basis of the luma intra prediction type and the luma intra prediction mode of the current coding block, and the information on the chroma prediction mode.

Method and apparatus for intra-prediction coding of video data

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Seoul, South Korea

Dong Gyu Sim