University-Industry Cooperation Group of Kyung Hee University

Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Net & Tv Inc.

Kohwang Foundation

Kyuheon Kim

Gwang-Hoon Park

Doug Young Suh

Won-Sik Cheong

Gwang Hoon Park

Jae-Yeon Song

Jin-Woo Hong

Sung-Ryeul Rhyu

Chieteuk Ahn

Byungchul Kim

Young-Sun Ryu

Doug-Young Suh

Sanghyun Park

Sungryeul Rhyu

Jae Yeon Song

Young-Kwon Lim

Yoon-Jin Lee

Soon-Choul Kim

Bum-Suk Choi

Jinwoong Kim

Jihwan Woo

Kook Heui Lee

Seo Young Hwang

Youngho Oh

Young-Ho Jeong

Jung-Hak Kim

Kyung Mo Park

Jeoung-Lak Ha

Jong-Hwan Park

Jiheon Im

Junsik Kim

Minwoo Jo

Min-Woo Jo

Ye-Sun Joung

Jihun Cha

The present disclosure relates to a method of encoding a three-dimensional image including a point cloud. According to an embodiment of the present disclosure, a method of encoding a three-dimensional image may include determining a spatial area in a three-dimensional space represented by the point cloud, projecting, onto a two-dimensional plane, a plurality of points included in the point cloud to generate a plurality of patches, determining at least one patch corresponding to the determined spatial area, down-sampling at least one patch according to a predefined rule, generating a two-dimensional image by packing the at least one down-sampled patch and the plurality of patches corresponding to areas other than the determined spatial area, and generating and outputting a bitstream including data in which the two-dimensional image is compressed and information related to the down-sampling performed to generate the two-dimensional image.

Method and device for encoding three-dimensional image, and method and device for decoding three-dimensional image

A method for sending media information by a first terminal in a multimedia communication system is provided. The method includes generating scene configuration information that includes information regarding at least one medium of multiple media, and sending the scene configuration information to a second terminal, wherein the information regarding the at least one medium includes at least one of information indicating whether to allow reproduction of the at least one medium in the second terminal, resource information used to reproduce the at least one medium, position information used to reproduce the at least one medium on a screen, and reproduction time information for the at least one medium.

Method and apparatus for communicating media information in multimedia communication system

An apparatus for providing an augmented broadcasting service and an apparatus for receiving the augmented broadcasting service in a hybrid broadcasting environment. The apparatus for providing the augmented broadcasting service includes: a real-time data provider configured to provide real-time data through a first transmission network; an augmented content provider configured to provide augmented content through a second transmission network, wherein the augmented content is to be synchronized with the real-time data; and a multiplexer configured to multiplex the real-time data, the augmented content metadata and timing information for synchronization between the real-time data and the augmented content metadata, and output resulting data.

Apparatuses for providing and receiving augmented broadcasting service in hybrid broadcasting environment

A method and apparatus for transferring user information between different terminals are disclosed. The method includes saving by a first terminal, when a change is made to user information during playback of content, the changed user information in a scene history, performing a terminal change from the first terminal to a second terminal, and resuming, by the second terminal, playback of the content from a continued scene after the last scene played back by the first terminal. Consequently, in a terminal change, the user may use the second terminal to play back the same content from the continued scene using the same content usage environment as the first terminal.

Method and apparatus for transferring user information between terminals in broadcast streaming service

Provided is a Simple Aggregation Format (SAF) synchronization packet structure including a SAF synchronization packet header and a SAF synchronization packet payload and multiplexing diverse element streams which include a scene description elementary stream. The SAF synchronization packet header includes time information related to an access unit included in the SAF synchronization packet payload, and the SAF synchronization packet payload includes header information on the access unit and payload information indicating the access unit. Since the present invention can multiplex diverse elementary streams effectively and simply into one data stream, synchronized data transmission is possible. Since the present invention accommodates a synchronization layer packet of the MPEG-4 system, it can be easily integrated with the MPEG-4 system and utilize the advantage of the MPEG-4 synchronization layer packet such as the concept of an access unit or a degradation priority.

SAF synchronization layer packet structure and server system therefor

Provided are intelligent water ring scan apparatus and method thereof, image encoding/decoding apparatus using the water ring scanning and method thereof, and a computer-readable recording medium for recording a program that implements the methods. The apparatus or method of this research selectively improves the image quality of a particular image part that needs to be encoded with priority by transmitting the image data of the particular image part suitably for a human visual system so as to provide a visually improved image. The encoding apparatus of this research differentiates the amount of image data depending on the significance of a certain image part to process the image in various qualities suitably for the human visual system. The methods of this research can be applied to an image encoding/decoding process.

Intelligent water ring scan apparatus and method based on quality factor, and video encoding/decoding apparatus and method using the same

Growing community of inventors

Seoul, South Korea

Kyuheon Kim