• ETRI Journal
• /
• v.36 no.2
• /
• pp.253-263
• /
• 2014

In the near future, traditional narrow and fixed viewpoint video services will be replaced by high-quality panorama video services. This paper proposes a visual-attention-aware progressive region of interest (RoI) trick mode streaming service (VA-PRTS) that prioritizes video data to transmit according to the visual attention and transmits prioritized video data progressively. VA-PRTS enables the receiver to speed up the time to display without degrading the perceptual quality. For the proposed VA-PRTS, this paper defines a cutoff visual attention metric algorithm to determine the quality of the encoded video slice based on the capability of visual attention and the progressive streaming method based on the priority of RoI video data. Compared to conventional methods, VA-PRTS increases the bitrate saving by over 57% and decreases the interactive delay by over 66%, while maintaining a level of perceptual video quality. The experiment results show that the proposed VA-PRTS improves the quality of the viewer experience for interactive panoramic video streaming services. The development results show that the VA-PRTS has highly practical real-field feasibility.

• Journal of Broadcast Engineering
• /
• v.14 no.1
• /
• pp.85-88
• /
• 2009

Recently "DMB Video-Associated Stereoscopic Data Services" standard has been published by TTA. The standard enables DMB broadcasters to provide 3D or stereoscopic interactive data services based on MPEG-4 BIFS (Binary Format for Scenes). The purpose is to entice viewers to utilize DMB interactive data services more often by providing realistic and protrusive image objects overlaid on top of the main video in the background. This paper provides the background, technical analysis, and in-depth considerations for the standard. Also the results of standard verification are provided including the results of interoperability test with the existing terrestrial DMB receivers.

• Proceedings of the IEEK Conference
• /
• 2001.06c
• /
• pp.117-120
• /
• 2001

In this paper, we designed and implemented a preliminary system of web-based real-time interactive courseware on a RealServer System by using webcasting streaming technology and Javascript language to increase of learning effects and its efficiency. From the experiments, it is known that internet service suppliers and client users could interact with each other efficiently in real-time through the implemented courseware.

• 한국경영정보학회:학술대회논문집
• /
• 2008.06a
• /
• pp.718-731
• /
• 2008

본 연구는 상호작용성의 속성과 이용자에게 주어진 통제력에 따라 상호작용성을 4 가지 차원으로 나누고, 이것이 어떤 경로를 거쳐 이용자 만족에 이르는지를 규명하는 것을 목적으로 한다. 이를 위해 상호작용성을 최적화하는 킬러 콘텐츠로 e 러닝을 선정하고, 상호작용성에 영향을 미치는 선행요인으로 서비스, 콘텐츠, 미디어 품질을 도출 하였으며, 상호작용성과 이용자 만족을 매개하는 변인으로 사회적 현존감과 인지적 몰입을 포함하는 연구모델을 제시하고자 한다.

• Journal of the Korea Safety Management & Science
• /
• v.9 no.3
• /
• pp.127-133
• /
• 2007

This paper reviewed the relationship between service quality and customer satisfaction, and the moderating effect of gender. Based on the responses from 807 customers who encountered employees in telecommunication industry, the results of multiple regressional analysis showed that all service quality factors have positive relationships with customer satisfaction. The results of moderating analysis showed that empathy and tangibility have positive interactive-effects on customer satisfaction with gender. With increasing of empathy and tangibility, female customers have been more satisfied than male customers.

• The Journal of Korea Robotics Society
• /
• v.3 no.2
• /
• pp.112-116
• /
• 2008

This paper presents URS (Ubiquitous Robotic Space) Modeling and service technique for the robotic security service while bridging between virtual space and physical space. First, this paper introduces a concept of virtual URS and responsive virtual URS. Second, this paper addresses modeling of URS which covers modeling of indoor geometry and environment sensor. Third, this paper describes virtual URS services including interactive virual-physical bridging service.

• Proceedings of the Safety Management and Science Conference
• /
• 2007.04a
• /
• pp.151-160
• /
• 2007

This paper reviewed the relationship between service quality and customer satisfaction, and the moderating effect of gender. Based on the responses from 807 customers who encountered employees in telecommunication industry, the results of multiple regressional analysis showed that all service quality factors have positive relationships with customer satisfaction. The results of moderating analysis showed that only empathy and tangibility have positive interactive-effects on customer satisfaction with gender. With increasing of empathy and tangibility, female customers have been more satisfied than male customers.

• 한국HCI학회:학술대회논문집
• /
• 2006.02b
• /
• pp.39-47
• /
• 2006

삶의 질을 향상시키기 위한 유비쿼터스 테크놀로지 도입으로 인해 제품개발, 주거, 상업시설 등에서 시작하여 최근 유비쿼터스 환경 구축의 일환으로 u-City 구현에 중점을 두고 많은 연구 진행되고 있다. 그 중 가로환경 디자인은 공공 시설로서 유비쿼터스 환경 구축의 중요한 이슈가 되고 있다. 그러나, 오늘날 가로 공간은 그 수가 양적으로 팽창되었을 뿐 각각의 특색에 맞게 조성되고 있지는 못하며, 물리적 환경개선에 중점을 두어 단순한 가로정비 수준에 머물고 있다. 이로 인해 지역주민과 이용자 중심의 참여에는 부족한 면이 많았다. 이에 본 연구는 유비쿼터스 테크놀로지를 도입하여 보다 실용적이고 현실 참여적인 공간으로 디자인함으로써 새로운 u-Street 디자인을 제안하고자 한다. 또한, 이와 같은 공공장소에서의 서비스가 이용자들과 어떠한 인터렉티브 커뮤니케이션을 가질 수 있을지에 대해 살펴보고 이를 디자인에 반영하여 공간이 인간과의 상호작용을 원활히 하고 감성적인 공간 디자인이 될 수 있도록 u-Service 를 개발하는 데 중점을 두고자 한다. 본 연구는 부산 광복로를 사례로 진행되었으며, 그 결과 다음과 같은 측면에서 기대효과를 예측할 수 있다. 첫째, u-City 의 기반 시설로서의 u-Street는 수평적이고 친환경적인 가로 경험을 통해 사람이 직접 여러 서비스와 인터렉션할 수 있다. 둘째, 본 연구에 제안된 u-Service 는 이전 광복로의 침체되고 비활동적인 공간을 활동적이고 생동감있는 공간으로 재활성화시키는데 중요한 매개체로서의 역할을 하게 될 것이다. 셋째, 주민과 이용자들의 적극적인 참여를 유도하여 지속적인 공간을 만들어 내는 데 크게 기여할 것이다.

• The Journal of Korea Robotics Society
• /
• v.17 no.4
• /
• pp.447-454
• /
• 2022

This paper presents the psychomotorik-based play activities executed by the social robot at home which helps children's social and emotional development. Based on the theory and practice of the psychomotorik therapy, the play activities were implemented in the close collaboration between psychmotorik experts, service designers and robotics engineers. The designed play activities are classified into four categories depending on the main areas of child development. The robotic system that can express verbal and nonverbal behaviors was developed in order to play games with children and but also to make children have continuous interest during the play activities with it. Finally, the psychomotorik-based play service scenario and interactive robot system were validated by the expert group from the domain of child psychotherapy. The evaluation results showed that the play service and the robot system were appropriately developed for children from the experts point of view.

• Cartoon and Animation Studies
• /
• s.14
• /
• pp.151-164
• /
• 2008

Cross platform game has brought about the expansion of game market, which results in technology innovation overcoming the limit of game consumption. The new model integrates both off and online game services. Gamers can now enjoy game service regardless of age, time, and space. If the technology evolution model of digital contents like cross-platform game engine can provide contents for several platform at the same time, the interactive service can be utilized into maximum level. It is also necessary to allocate, switch data as well as to innovate the transmission technology of data according to each platform. Providing the same contents for several platform as many as possible can be the most suitable strategy to enhance the efficiency and profits. However if the interactive service can be accomplished completely, the development of data switching technology and distribution should be made. To be a leader in the next digital contents market, one should develop the network engine technology which can embody the optimization of consumption in the interactive network service.