Samsung Electronics Co., Ltd.

Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Seiko Epson Corporation

Kwangwoon University Industry-academic Collaboration Foundation

Yong-jin Cho

Min-woo Park

Byeong-Doo Choi

Jin-young Lee

Ho-cheon Wey

Jae-won Yoon

Chan-yul Kim

Jung-il Lee

Jeong-Hoon Park

Dong-Hoon Lee

Elena Alshina

Alexander Alshin

Min-Joo Kim

Seung-Han Paek

Dong-Gyu Sim

Jin-Young Lee

Hyun-Suk Jin

So-Haeng Cho

Sung-ki Kim

Hae-Yeol Kim

Kwon Shik Park

Min-Woo Park

Myoung Kee Baek

Woo-Nam Jeong

Nam-soo Kim

Woong Lim

Jong-yoon Kim

Hyun-ho Jo

Ki-hwan Kim

See-Hwa Jeong

Sung-yeon Lee

Moon-ki Yeo

Dae-kyu Lee

Chong-Tai Kim

Chul-Jin Kim

Jin-Soo Maeng

Soo-Jin Kwon

Ho-Cheon Wey

A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes reconstructing a first layer image based on encoding information of the first layer image that is obtained from a bitstream, splitting a largest coding unit of a second layer image into coding units based on split information of the second layer image that is obtained from the bitstream, splitting the coding units into prediction units for prediction encoding, determining whether to use a coding tool for decoding a current prediction unit based on at least one among a prediction mode of the current prediction unit among the prediction units, size information of the current prediction unit, and color depth information of the current prediction unit, and decoding the current prediction unit, using the coding tool, in response to the determining to use the coding tool.

Video encoding method and apparatus thereof and a video decoding method and apparatus thereof

Disclosed is a video decoding method including: obtaining a disparity vector having components in sub-pixel unit for interlayer prediction between images belonging to a current layer and a reference layer; determining a position of an integer pixel of the reference layer corresponding to a position indicated by the disparity vector obtained from the position of a current pixel of the current layer; and decoding the image of the current layer by using prediction information on a candidate area of the reference layer corresponding to the determined position of the integer pixel.

Method and apparatus for encoding and decoding video with respect to position of integer pixel

Provided are multilayer video encoding/decoding methods and apparatuses. A multilayer video decoding method may comprise obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) with respect to a layer set comprising a plurality of layers; determining a size of the DPB with respect to the layer set based on the obtained information indicating the maximum size of the DPB; and storing a decoded picture of the layer set in the DPB of the determined size.

Method and apparatus for managing buffer for encoding and decoding multilayer video

Provided are multilayer video encoding/decoding methods. The multilayer video decoding method includes obtaining, from a bitstream, instantaneous decoder refresh (IDR) alignment information specifying whether at least one intra random access point (IRAP) picture for a random access and comprised in a same access unit is limited to being an IDR picture; and reconstructing a multilayer video by decoding encoded data by using the IDR alignment information.

Multi-layer video encoding method and apparatus, and multi-layer video decoding method and apparatus

Provided is an interlayer video decoding method according to an embodiment including obtaining prediction-mode information of a current block of a depth image from a bitstream, generating a prediction block of the current block on the basis of the prediction-mode information, and decoding the depth image by using the prediction block. The obtaining of the prediction-mode information of the current block from the bitstream includes receiving a first flag, a second flag, and a third flag, wherein the first flag indicates whether prediction of the current block by dividing the current block into two or more partitions according to a pattern is permitted, the second flag indicates whether the depth image permits blocks of the depth image to be predicted by dividing the blocks into two or more partitions by using a wedgelet, and the third flag indicates whether the depth image permits the blocks of the depth image to be predicted by dividing the blocks into two or more partitions by using a contour; and receiving a fourth flag from the bitstream when predetermined conditions determined on the basis of the first to third flags are satisfied, wherein the fourth flag represents information regarding a type of a method of dividing the current block into two or more partitions according to the pattern.

Method and device for transmitting prediction mode of depth image for interlayer video encoding and decoding

Apparatuses and methods configured to encode and decode multi-layer video are provided. A method of prediction-decoding a multi-layer video includes obtaining information indicating whether a decoded picture buffer (DPB) storing a first layer and a DPB storing a second layer operate identically, and operating the DPB storing the second layer based on the obtained information.

Method and apparatus for encoding and decoding multi-layer video using decoded picture buffers which operate identically

An inter-view video decoding method may include determining a disparity vector of a current second-view depth block by using a specific sample value selected within a sample value range determined based on a preset bit-depth, detecting a first-view depth block corresponding to the current second-view depth block by using the disparity vector, and reconstructing the current second-view depth block by generating a prediction block of the current second-view depth block based on coding information of the first-view depth block.

Video encoding method using inter-view prediction and device thereof, and video decoding method and device thereof

The disclosure relates to a method of controlling an electronic device, the method includes, based on a magnetic field generated by a source, obtaining a coordinate of a user's hand; and reflecting the obtained coordinate of the user's hand in a virtual reality environment based on a change of a location of the source due to a movement of the user.

Electronic device and method of controlling the same

An interlayer video decoding method comprises reconstructing a first layer image based on encoding information acquired from a first layer bitstream; reconstructing a second layer current block determined as a predetermined partition mode and a prediction mode by using interlayer prediction information acquired from a second layer bitstream and a first layer reference block corresponding to a current block of a first layer reconstruction image that is to be reconstructed in a second layer; determining whether to perform luminance compensation on the second layer current block in a partition mode in which the second layer current block is not split; and compensating for luminance of the second layer current block according to whether luminance compensation is performed and reconstructing a second layer image including the second layer current block of which luminance is compensated for.

Interlayer video encoding method and apparatus and interlayer video decoding method and apparatus for compensating luminance difference

An interlayer video decoding method includes: selecting a luminance compensation model to be applied to a first layer reference block and determining a luminance compensation parameter for the selected luminance compensation model; and compensating for luminance of the first layer reference block by using the luminance compensation parameter and reconstructing a second layer image comprising a second layer current block. The determining of the luminance compensation parameter comprises determining the luminance compensation parameter based on any one of a color component of the second layer current block, information about a type of a picture comprising the second layer current block, and a prediction mode of the second layer current block.

Method and apparatus for video encoding for adaptive illumination compensation, method and apparatus for video decoding for adaptive illumination compensation

An inter-layer video decoding method according to an embodiment of the present invention may comprise the steps of: obtaining prediction mode information for a current block of a depth image from a bitstream; creating a prediction block of the current block on the basis of the obtained prediction mode information; predicting an average value for the prediction block by using the pixel values of a designated location of the prediction block; and decoding the depth image by using the average value for the prediction block.

Intra scene prediction method of depth image for interlayer video decoding and encoding apparatus and method

Multilayer video encoding/decoding methods and apparatuses are provided. A multilayer video decoding method includes: obtaining inter-layer prediction allowance information from a bitstream; obtaining single layer use information from the bitstream when the inter-layer prediction allowance information indicates that inter-layer prediction is usable; determining at most only one layer among at least one layer, to which a current picture refers, as a reference layer when the single layer use information indicates that at most one picture is used for inter-layer prediction; and performing inter-layer prediction on the current picture by using a picture belonging to the reference layer.

Method and apparatus for encoding multilayer video, and method and apparatus for decoding multilayer video

A multi-layer video encoding/decoding method and a multi-layer video encoding/decoding apparatus are provided. In the multi-layer video encoding method, image data is encoded to a multi-layer encoded image, at least one of encoded layers of a target output layer set is determined as an output layer, an index of at least three output layer subsets including at least one output layer from among the encoded layers of the target output layer set are generated based on the determined output layer, and a bitstream including the generated index and the multi-layer encoded image is generated.

Provided is an inter-layer video decoding method. The inter-layer video decoding method includes: determining whether a current block is split into two or more regions by using a depth block corresponding to the current block; generating a merge candidate list including at least one merge candidate for the current block, based on a result of the determination; determining motion information of the current block by using motion information of one of the at least one merge candidate included in the merge candidate list; and decoding the current block by using the determined motion information, wherein the generating of the merge candidate list includes determining whether a view synthesis prediction candidate is available as the merge candidate according to the result of the determination.

Method and device for configuring merge candidate list for decoding and encoding of interlayer video

An inter-layer video decoding method is described including reconstructing a color image and a depth image of a first layer based on encoding information about the color image and the depth image of the first layer obtained from a bitstream. When it is determined that a prediction mode of a current block of a second layer image to be decoded is a view synthesized prediction mode based on an image synthesized from the first layer image a determination is made whether to perform luminance compensation on the second layer current block to be reconstructed. Use of the view synthesized prediction mode to reconstruct the second layer current block depends on the luminance compensation determination.

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Seoul, South Korea

Yong-jin Cho