Samsung Electronics Co., Ltd.

Samsung Electro-Mechanics Co., Ltd.

Yonsei University

Ho-cheon Wey

Jin-young Lee

Min-woo Park

Byeong-Doo Choi

Yong-jin Cho

Jae-won Yoon

Chan-yul Kim

Seong-deok Lee

Seung-hoon Han

Byung-seok Min

Jeong-Hoon Park

Young-su Moon

Seung-ho Park

Sun-il Lee

Kwang-pyo Choi

Seok Pil Lee

Dong-Hyun Kim

Seok Lee

Hyun-hwa Oh

Myung-jin Eom

Seong-hoon Choi

Young-Jin Yoo

Joon-Hyun Lee

Min-Woo Kim

Seung-soo Jeong

Dong-Goo Kang

Hyung-jun Lim

Tae-gyoung Ahn

Chang-Yeong Kim

Deok-ho Kim

Sung-Jea Ko

Tae-gyu Lim

Seung-won Jung

Young-jin Yoo

Kyung-Ah Kim

Chun Zhao

Dong-yoon Kim

Seong-wook Han

Ji-won Choi

Won-woo Ro

Gui-won Seo

An electronic device and an image conversion method of the electronic device, the electronic device comprising: a receiving unit for receiving a first image from a source device; a decoding unit for decoding brightness information of the first image; a converting unit for converting a dynamic range of the first image on the basis of the decoded brightness information, using a mapping function; and a display unit for displaying a second image having the converted dynamic range on a display, wherein the mapping function is a curve function including a plurality of points determined on the basis of the first image, a characteristic of a change in brightness of a display of the source device, and a characteristic of brightness of a scene of the first image. The present disclosure may generate, for example, a high dynamic range (HDR) image, which is improved from a standard dynamic range (SDR) image.

Electronic device performing image conversion, and method thereof

Provided is a multilayer video decoding method including obtaining a multilayer video bitstream; determining, based on the obtained multilayer video bitstream, whether or not a default reference type, in which at least one layer is inter-layer predicted by using at least one reference layer by default, is used; and inter-layer predicting the at least one layer by using the at least one reference layer according to the default reference type, based on the determining of whether or not the default reference type is used, and decoding an image including the at least one layer.

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

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

Provided are an image processing apparatus and method, which use a maximum display luminance value of a mastering display and a maximum display luminance value of a target display according to luminance characteristics of a current scene of an encoded image.

Image processing apparatus and image processing method based on metadata

A display apparatus and a method of processing an image thereof are provided. The method includes identifying at least one area of an input image by analyzing a dynamic range of the input image, obtaining at least one mapping function based on dynamic range information and brightness information of the at least one area and dynamic range information of the display apparatus, obtaining at least one virtual image where the dynamic range of the input image is converted using the at least one mapping function, synthesizing the at least one virtual image and the input image, and outputting the synthesized image.

Display apparatus and method of processing image thereof

Provided is a video processing device and method capable of managing a security level of content included in a video. The video processing method includes: receiving an identifier of a video and information about a security policy to be set to the video; receiving security information related to the security policy; preparing the video by using the received identifier of the video; and updating security information of the prepared video by using the received security information according to the security policy.

Device and method for processing video

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 is a video processing device and method capable of enhancing security of content included in a video, the video processing device including: a loader configured to load an original video; an encoder configured to generate an encoded video including a header and a payload by encoding the loaded original video; and a security information inserter configured to insert security information comprising information about a reproduction right of the video into the header or the payload.

Video processing device and method

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

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

Disclosed are a method and apparatus for generating local metadata including position information of a similar color mapping region and a color mapping function of the similar color mapping region and a method and apparatus for correcting color components 5 of a pixel in a similar color mapping region based on local metadata.

Metadata-based image processing method and apparatus

A method of generating metadata includes: obtaining a first image and a second image respectively having different color gamuts; obtaining at least one of information regarding a white point and information regarding the color gamut of the second image; correcting the first image based on the obtained information; and generating the metadata based on a correspondence relation between color information of the corrected first image and color information of the second image.

Method and device for image display based on metadata, and recording medium therefor

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.

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Seongnam-si, South Korea

Ho-cheon Wey