Samsung Electronics Co., Ltd.

University-industry Cooperation Group of Kyung Hee University

Electronics and Telecommunications Research Institute

Sungkyunkwan University

University-industry Cooperation Group of Kyunghee

Doug-Young Suh

Kyung-Mo Park

Gwang-Hoon Park

Kyu-Heon Kim

Yong-Hun Lee

Jae-Yeon Song

Sung-oh Hwang

Sung-Ryeul Rhyu

Yun-Je Oh

Min-Woo Park

Tae-sung Park

Do-young Joung

Jang-Won Lee

Byeong-Cheol Kim

Jun-Oh Kim

Min-Woo Cho

Jeong-Wook Park

Tae-Sung Park

Jong-ho Kim

Yoon-Jin Lee

Jong-Tae Park

Byeungwoo Jeon

Yung-Lyul Lee

Jin-Woo Hong

Sung-Oh Hwang

Yong-Il Kwon

Young-Wan So

Young-Sun Ryu

Se-Yoon Jeong

Donggyu Sim

Seanae Park

Seo-young Hwang

Ga-hyun Ryu

Yiling Xu

Nam-guk Kim

Kyung-Ae Moon

Seo-Young Hwang

Jung-han Kim

Jung-Han Kim

Gil-yoon Kim

Kyuheon Kim

Hee-jean Kim

Gil-Yoon Kim

Gi-Jun Park

Sung-chang Lim

Dohyeong Kim

Chulkeun Kim

Kyungyeon Min

Chun-Bae Park

Chul-Keun Kim

Yong-Woo Cho

Seung-Pyo Shin

Minwoo Jo

Hee-Jean Kim

Nam-Guk Kim

Ga-Hyun Ryu

Do-Young Joung

There are provided a method and apparatus for delivering transport characteristics of multimedia data. According to an aspect of the present invention, transport characteristics of media data that can be divided in a unit of a Media Processing Unit (MPU) are created in a unit of a predetermined number of MPUs, the created transport characteristics and a flag indicating presence or absence of the created transport characteristics are inserted into the media data, and the resultant media data is delivered. Accordingly, by using transport characteristics in units of media data unit groups, each media data unit corresponding to a short time length, it is possible to effectively control Quality of Service (QoS) in a dynamically changing transport environment, like a mobile network.

Apparatus and method for delivering transport characteristics of multimedia data

An apparatus and a method for providing an adaptive multimedia service in a mobile communication system are provided. The method of providing a multimedia service includes collecting user-preference-aware information, device-capability-aware information, and network-aware information, generating a packet according to a correlation among the user-preference-aware information, the device-capability-aware information, and the network-aware information, and providing a multimedia service according to the generated packet.

Apparatus and method for providing adaptive multimedia service

A method for receiving a media data is provided. The method includes receiving, by a client from a server, a media presentation description (MPD) including segment information; and receiving media data based on the MPD, wherein the media data comprises a segment, wherein the segment includes a fragment, and wherein the fragment includes a subfregment, wherein the segment information indicates a location of the media data, and wherein the segment information comprises segment index information indicating a corresponding byte range related one fragment, and fragment index information for accessing different levels of a plurality of subfragments.

Method and apparatus for improving quality of multimedia streaming service

A method for transmitting multimedia data delivery characteristics information by a multimedia data transmission apparatus in a multimedia communication system is provided. The method includes transmitting, to a multimedia data reception apparatus, an element indicating whether multimedia data delivery characteristics information denoting information related to a Quality of Service (QoS) for multimedia data is included, and the multimedia data delivery characteristics information if the element indicates that the multimedia data delivery characteristics information is included.

Apparatus and method for transmitting/receiving multimedia data delivery characteristics information in multimedia communication system

Provided are a method and a device for transmitting and receiving multimedia data. The present invention comprises: receiving of multimedia data and confirming of loss data; determining, with respect to the degree of the loss of the received data, of whether or not the lost data can be recovered by means of application layer forward error correction (AL-FEC); if data recovery by means of the AL-FEC is not possible, making of an automatic retransmission request (ARQ) with respect to the lost data; and receiving of data retransmitted with respect to the ARQ and recovering of the lost data.

Method and device for transmitting and receiving multimedia data

A method for transmitting scene composition information from an apparatus therefor in a multimedia communication system is provided. The method includes generating scene composition information comprising media attributes information and temporal information, and transmitting the scene composition information, wherein the media attributes information and temporal information is separated into different formats.

Apparatus and method for transceiving scene composition information in multimedia communication system

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

A method and an apparatus for reproducing video data are provided. The method includes the steps of extracting a coded video data stream and video data attribute information from the stored video file, extracting samples relevant to an expanded time layer from the extracted video data stream on the basis of the location information of the sample which allows for temporal layer access contailed in the video data attribute information, and restoring and reproducing the extracted samples.

Method and apparatus for reproducing video data

A method for receiving a media data is provided. The method includes receiving, by a client from a server, a media presentation description (MPD) including segment information; and receiving media data based on the MPD, wherein the media data comprises a segment, wherein the segment includes a fragment, and wherein the fragment includes a subfragment, wherein the segment information indicates a location of the media data, and wherein the segment information comprises segment index information indicating a corresponding byte range related one fragment, and fragment index information for accessing different levels of a plurality of subfragments.

Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting from a received bitstream a block type indicating a method of determining a motion vector of a current block present in a current picture of the multi-view video; interpreting a first picture type indicating whether the current picture is a reference picture type for inter prediction; interpreting additional information of the current picture based on at least one of the interpreted first picture type and the interpreted block type; and reconstructing the current block and the current picture by using the additional information.

Method and apparatus for multi-view video encoding and method and apparatus for multiview video decoding

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Seongnam-si, South Korea

Doug-Young Suh