• Journal of the Semiconductor & Display Technology
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• v.13 no.1
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• pp.67-72
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• 2014

Recently released digital devices have various characteristics such as different screen sizes or different sensors embedded, according to the purpose of their use. So the device types are fragmented and the software should be independently developed for each devices with different characteristics. RRUI are being developed and standardized in progress to provide UI using user information and context information, as one way of solving the device fragmentation. In this paper, we take a look at various standards that classify and utilize user information and context information for RRUI and try to find correlations between MPEG-UD and RRUI.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.1053-1056
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• 2004

Research in Human Computer Interface (HCI) is towards development of an application environment able to deal with interactions of both human and computers that can be more intuitive and efficient. This can be achieved by bridging the gap between the synthetic virtual environment and the natural physical environment. Thus a project called Tangible Space Initiative (TSI) has been launched by KIST. TSI is subdivided into Tangible Interface (TI) which controls 3D cyber space with user's perspective, Responsive Cyber Space (RCS) which creates and controls the virtual environment and Tangible Agent (TA) which senses and acts upon the physical interface environment on behalf of any components of TSI or the user. This paper is a brief introduction to a new generation of Human Computer Interface that bring user to a new era of interaction with computers in the future.

• Journal of Electrical Engineering and Technology
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• v.9 no.2
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• pp.762-770
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• 2014

Tangible Space Initiative (TSI) is a new framework that can provide a more natural and intuitive Human Computer Interface for users. This is composed of three cooperative components: a Tangible Interface, Responsive Cyber Space, and Tangible Agent. In this paper we present a Tangible Tele-Meeting system in TSI, which allows people to communicate with each other without any spatial limitation. In addition, we introduce a method for registering a Tangible Avatar with a Tangible Agent. The suggested method is based on relative pose estimation between the user and the Tangible Agent. Experimental results show that the user can experience an interaction environment that is more natural and intelligent than that provided by conventional tele-meeting systems.

• Journal of Internet Computing and Services
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• v.15 no.5
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• pp.83-93
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• 2014

Providing personalized services customized to users' needs and preferences becomes highlighted as a key area of user-context computing. It is essential for context-aware technology to be developed more intelligent and meaningful services by being widely applied to a variety of sectors and domains. SDO (Standard Development Organization) such as MPEG and W3C has been actively developed to be standardized services and to improve context-awareness services. Yet current standards related to context-aware technology, such as MPEG-7, MPEG-21, MPEG-V, and emotionML, are not capable enough to support various systems and diverse services. Against this backdrop, the MPEG User Description, referred to also as MPEG-UD Standard, is to ensure interoperability among recommendation services, which take into account user's context when generating recommendations to users. In this light, we introduce standards related to the user context and propose the structure for RD-Engine and the Remote Responsive User Interface(RRUI) system in reference to MPEG-UD. This system collects unit resources matching specific condition according to the user's contexts described by MPEG-UD. In so doing, it improves adaptive user interface considering device features in real-time. By automatically generating adaptive user interfaces tailored to an individual's contexts, the proposed system aims to achieve high-quality user experience for a complex service.

• The Journal of the Korea Contents Association
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• v.16 no.11
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• pp.525-536
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• 2016

As obtaining information via the Internet has increased recently, the importance of web-based user interface more than ever is being emphasized. The purpose of this study is to improve the sliding structures of submenu in pull-down menu for improving web user interface. Animation techniques applied to the submenu of the pull-down menus that are being used at many web sites have very monotonous sliding structures. In order to solve these problems, a new sliding algorithm based on enlarging/reducing and moving animation techniques with direction control in pull-down menu is proposed. As a result, the proposed method can not only improve visual effects significantly but be also easily applied to the implementation of the web-based user interface in comparison with the previous pull-down menus. Finally, experiments on application of the proposed sliding algorithm to responsive image slider show that the proposed method can achieve good results. Further studies taking into account performance are needed to implement web-based interactive contents using the proposed method.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.626-631
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• 2006

가상현실 시스템에서의 가장 기본적인 상호작용은 사용자가 원하는 위치와 방향으로 시야를 이동하는 네비게이션이다. 기존의 관련 연구들은 가상환경 네비게이션의 고전적인 문제인 'lost-in-cyberspace'에 대한 명확한 해결책을 제시하지 못하고 있다. 또한, 직관적이고 사용방법이 쉬운 상호작용에 대한 연구가 충분히 이루어지지 않았다. 본 논문에서는 증강현실 기반의 감각형 오브젝트를 이용한 네비게이션 인터페이스 시스템과, 사용자의 컨텍스트를 활용한 네비게이션 방법을 제안한다. 테이블의 표면에는 프로젝터를 이용한 후면 영사를 통해 가상환경의 지도와 사용자를 위한 네비게이션 정보가 보여진다. 사용자는 테이블 공간에서 카메라를 이용해 추적되는 감각형 오브젝트를 조작함으로써 가상환경을 네비게이션 할 수 있다. 또한, 사용자의 관심 지역 및 가상공간의 중요 지역 등의 컨텍스트는 사용자의 간단한 오브젝트 조작 정보와 결합되어 이동 경로 생성에 이용된다. 제안된 시스템은 본 연구실에서 제작된 Responsive Multimedia System (RMS) 의 인터페이스 시스템으로 연동되어 실험을 수행하였다. 제안된 시스템 및 네비게이션 기법은 사용자에게 전체 가상환경에 대한 인지력을 향상시키고, 직관적인 인터페이스를 제공하며, 최소한의 조작으로 만족스러운 네비게이션을 제공한다.

• Journal of information and communication convergence engineering
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• v.21 no.1
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• pp.68-74
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• 2023

This study examines the response of users' feelings from a gender perspective toward interactive video mobile learning (IVML). An IVML prototype was developed for the Android platform allowing users to install and make use of the app for m-learning purposes. This study aims to measure the level of feelings toward the IVML prototype and examine the differences in gender perspectives, identify the most responsive feelings between male, and female users as prominent feelings and measure the correlation between user-friendly feeling traits as an independent variable in accordance with gender attributes. The feelings response could then be extracted from the user experience, user interface, and human-computer interaction based on gender perspectives using the Kansei engineering approach as the measurement method. The statistical results demonstrated the different emotional reactions from a male and female perspective toward the IVML prototype may or may not have a correlation with the user-friendly trait, perhaps having a similar emotional response from one to another.

• Journal of Information Technology Applications and Management
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• v.31 no.1
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• pp.113-122
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• 2024

This comprehensive study delves into the analysis of user review data across various metaverse platforms, employing advanced text mining techniques such as TF-IDF and Word2Vec to gain insights into user perceptions. The primary objective is to uncover the factors that contribute to user satisfaction and dissatisfaction, thereby providing a nuanced understanding of user experiences in the metaverse. Through TF-IDF analysis, the research identifies key words and phrases frequently mentioned in user reviews, highlighting aspects that resonate positively with users, such as the ability to engage in creative activities and social interactions within these virtual environments. Word2Vec analysis further enriches this understanding by revealing the contextual relationships between words, offering a deeper insight into user sentiments and the specific features that enhance their engagement with the platforms. A significant finding of this study is the identification of common grievances among users, particularly related to the processes of refunds and login, which point to broader issues within payment systems and user interface designs across platforms. These insights are critical for developers and operators of metaverse platforms, suggesting a focused approach towards enhancing user experiences by amplifying positive aspects. The research underscores the importance of continuous improvement in user interface design and the transparency of payment systems to foster a loyal user base. By providing a comprehensive analysis of user reviews, this study offers valuable guidance for the strategic development and optimization of metaverse platforms, ensuring they remain responsive to user needs and continue to evolve as vibrant, engaging virtual environments.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.01a
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• pp.251-254
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• 2017

최근 현대인들은 웹 환경에 대해 높은 관심을 보이고 있다. 또한 웹 환경에서 HTML5의 표준화에 따라 사용자의 경험, 즉 'UX(User Experience)' 설계에 대한 관심 또한 높아지고 있다. 이러한 환경을 차세대 웹 플랫폼이라 한다. 차세대 웹 플랫폼이라 함은 HTML5라는 웹 표준 규약에 따라 설계한 것을 뜻한다. 따라서 본 논문에서는 이러한 차세대 웹 플랫폼의 UX 설계에 대한 최신 트렌드와 콘텐츠 UX에 대해서 설명하고 반응형 디자인에 따른 웹사이트 수익과의 관계까지 실험결과를 토대로 제시하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.43-44
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• 2016

본 논문에서는 사용자와의 실시간 상호작용을 활용하여 역사적 사실을 전달하는 반응형 미디어 아트 작품 을 보인다. 본 작품은 젊은 계층의 역사적 무관심을 김이 서리는 현상에 비유하고 사용자가 서린 김을 닦음으로써 잊고 있던 아픈 역사와 마주하게 되는 내용으로 구성된다. 김이 서리는 자연 현상과 서린 김을 닦는 행위를 영상으로 표현하였으며, 서려있는 정도와 사용자의 손 움직임에 따라 영상과 음향이 상이하게 반응한다. 이는 관객의 역사에 대한 무관심을 스스로 닦음으로서 역사적 본질과 마주할 수 있다는 의미를 극대화 한다.