• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.539-541
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• 2005

인터넷 서비스 보급이 대중화됨에 따라 인터넷을 이용한 다양한 부가 서비스들이 창출되고 있다. 대부분의 인터넷 사용자들은 항상 누군가로부터의 관심을 갈구하기 마련이다. 메신저의 대화명이나, 미니 홈피 등을 통해 수시로 자신의 현재 심리상태를 표현하는것은 그 좋은 예라 할수 있다. 향후, 개발될 새로운 부가서비스는 이러한 사용자들의 현재 상태를 표현하기 위한 프레즌스 서비스와 통합된 형태로 발전해 나갈것으로 여겨진다. 본고에서는 현재 IETF를 중삼으로 진행되고 있는 SIP 기반 프레즌스 및 인스턴스 메시징 서비스에 대한 소개와, 사용자의 프레즌스 정보를 다양하게 기술하기 위한 프레즌스 고급 기능 표준기술도 함께 소개하고자 한다.

• Journal of Digital Contents Society
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• v.19 no.3
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• pp.461-470
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• 2018

The purpose of this study was to examine the relationship among presence, enjoyment, brand attitude, and purchase intention of sports brand advertising based on augmented reality. The results are as follow. First, presence influenced positively on enjoyment perceived by sports brand advertising based on augmented reality. Second, presence influenced positively on brand attitude of sports brand advertising based on augmented reality. Third, enjoyment perceived by sports band advertising based on augmented reality influenced positively on brand attitude. Fourth, enjoyment perceived by sports brand advertising based on augmented reality influenced positively on purchase intention. Fifth, brand attitude influenced positively on purchase intention.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.06a
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• pp.375-377
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• 2013

텔레프레즌스 시스템은 기존의 영상회의 시스템과 비교하여, 라이프 사이즈의 출력, 고품질의 영상 및 음성 출력을 가능하게 함으로써 참석자로 하여금 실제 회의에 참석하고 있는 듯한 몰입도를 제공하여 원거리의 출장을 대체할 수 있는 시스템이다. 기존의 텔레프레즌스 시스템은 각 클라이언트의 미디어 정보를 중앙 서버에서 취합, 재구성하여 각각의 클라이언트로 전달하는 구조를 갖는다. 이러한 구조는 기능의 구현은 용이하나 모든 트래픽이 서버로 집중되어 서버가 설치되어 있는 통신 노드에 부하가 집중되는 단점을 갖는다. 이러한 문제점을 해결하기 위해 중앙 서버의 호처리 기능과 미디어 처리 기능을 통신망에 분산시키는 구조가 분산형 텔레프레즌스 구조이며, 분산 구조 하에서 각각의 클라이언트는 기존의 중앙 서버에서 처리되었던 미디어의 재구성 기능, 텔레프레즌스 서비스를 위한 고품질의 비디오 및 오디오 처리 기능, 협업을 위한 문서 공유 기능 등이 요구된다. 본 논문에서는 분산형 구조에서 요구사항을 만족하는 텔레프레즌스 클라이언트 시스템의 구현 방법에 대하여 기술한다.

• Journal of Digital Convergence
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• v.15 no.4
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• pp.413-419
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• 2017

This experimental research explores the effect of low attention of movie audience on the experience of presence, the degree of emotional touch, and memory about movie contents, because of indiscreet use of smart phone. This study measured and analyzed the experience frequency of presence, degree of emotional touch and recognition memory about movie contents by self report survey, after showing 2 subject groups consisting of 83 University students, one with not manipulated attention, the other with manipulated attention, using smart phone intentionally. This research found that the subjects exposed to the movie with not manipulated attention showed more presence experiences, and higher degree of emotional touch than the subjects exposed to the movie with manipulated attention. However meaningful difference of recognition memory was not discovered between the 2 groups. The result of this research can have a meaning because proceeding studies about presence effect of movie mainly dealt with the effect of HDTV, 3D image, stereo sound on the experience of presence, arousal, pleasure of movie audience and it is difficult to find studies about the relation between attention of movie audience and the experience of presence, emotional touch, and memory.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.923-926
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• 2005

We explain the Presence Model defined in IETF IMPP WG. We also roughly explain the standards defined methods and behaviors among components for services according to presence model. We especially explain the XCAP technology which is defined authorization rules related subscription and notification of presence information and describe the design considerations of PA server for presence service.

• The Journal of the Korea Contents Association
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• v.8 no.1
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• pp.152-159
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• 2008

In this paper, we have studied a new method in which multimedia message can be processed effectively in SIP(Session Initiation Protocol)-based Instant Messaging service. Total system is composed of multimedia message server, presence server and user system. To provide effectively message informations such as number of messages stored in the multimedia message server, waiting status and message types to users, we have proposed a new method which can be a substitute for message waiting indication event package. In our proposed method, when changes of messages status informations occur, these informations are sent to the presence server, and can be transferred as a separate tag within notification message. The presence server processes subscription requests and notifications, and efficiency can be improved as it provides both message status informations and several communication status informations such as on-line status to service users. Partial publication is used in our system to improve data transfer efficiency more between user system and the presence server. The performance of our proposed model is evaluated by experiments measuring multimedia message transfer speed and server processing time.

• Archives of design research
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• v.17 no.2
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• pp.413-424
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• 2004

This paper defines the telepresence as a particular type of experience, rather than a collection of hardware. Defining telepresence in this way provides a means for examining telepresence in relation to other types of mediated experience. Presence refers to the natural perception of an environment, and telepresence refers to the mediated perception of an environment. Factors influencing whether a particular mediated environment will induce a sense of telepresence include the following: the combination of sensory stimuli employed in the environment, the ways in which participants are able to interact with the environment, and the characteristics of the individual experiencing the environment. Telepresence art invites the people from remote worlds to networked cyber space and creates the experience of 'being there' by making participants control the virtual reality system and receive feedback from their teleactions. It is the way to produce an open and engaging experience that manifests the cultural changes brought about by remote control, remote vision, telekinesis, and real-time exchange of audiovisual information. The principal determinants of telepresence are sensory immersion, sensory fidelity, cognitive fidelity and personal factors. This paper applies the 4 determinants to telepresence art works such as Ken Goldberg's Telegarden, Monika Fleischmann & Wolfgang Strauss' The Home of the Brain, Paul Sermon's Telematic Dreaming, Telematic Vision, Eduardo Kac's Uriapuru, Simon Penny's Traces and Paul Sermon & Andrea Zapp's A Body of Water.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.9
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• pp.3538-3547
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• 2010

As Telepresence has emerged as a key collaboration tool for supporting trade business, the need for using Telepresence has also been increased in the foreign countries. In this context, we has studied an exploratory research to analyze how staffs-in-charges of trade support authority, exhibition & convention center and SME(Small and Medium-Size Enterprise) perceive the general concept of Telepresence, the necessity, feasibility, business values and expected problems of Telepresence's adoption and use. The finding indicated that there seemed to be significant differences between the necessity and the feasibility of Telepresence adoption and use. In addition, they were anticipating some problems when building Telepresence. Major reasons are incompatibility between Telepresence systems, lack of usability and difficulties of fixing a rental fee. The results of the perception analysis also showed that Telepresence would positively influence on creating business value. The analysis revealed that the core factors of the successful adoption and use of Telepresence are stable network environment, awareness and accessability, and education and promotion. Through the perception analysis, I came up with the core factors to implement Telepresence successfully and use it properly. And the fact that I presented the guideline to build Telepresence for SME makes this study meaningful.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.525-530
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• 2014

This experimental research explores the effect of screen size of smart media on viewer's evaluation and presence. For this experimental research, 2 groups of subjects composed of university students were exposed to TV document video clips which were shown by two different size of smart media, and evaluation and presence related questions were asked analysed. This research found that subjects exposed to large smart media showed higher degree of image aesthetic evaluation and presence than those exposed to small media. but the effect of screen size of smart media on viewer's program evaluation was not found. Through this study, screen size of smart media is main factor which has effect on image aesthetics and presence of TV documentary.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.5
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• pp.145-151
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• 2014

If RCS-e subscribers and SMS subscribers want to exchange instant messages between each other, RCS-e app should know the presence information of the SMS subscribers. However, a RCS-e specification does not have the way to identify the information. This paper propose a software framework that makes RCS-e app can identify the information without having to modify RCS-e app. It describes the call flows between network equipments to manage the information. Also, it defines RCS-e service tags and service tuple for SMS subscribers. Performance evaluation proves that the proposed framework does not add loads to the existing network.