• 한국HCI학회:학술대회논문집
• /
• 2006.02a
• /
• pp.154-160
• /
• 2006

전반사 성분은 직접 투사형 증강현실 시스템들이 가지는 대표적인 문제점으로서, 사용자의 시점에 따라 유동적으로 변하면서 프로젝션된 정보의 가시도(visibility)을 심각하게 저해한다. 이러한 전반사 성분의 발생을 해결하기 위해 여러 대의 중첩된(overlapping) 프로젝터를 이용하는 방법이 최근 제안되었다. 그러나, 전반사 성분은 사용자의 시점 뿐만 아니라, 스크린의 재질의 반사 특성에도 크게 좌우되는데, 이에 대한 고려가 없었다. 본 논문에서는 스크린의 재질에 따른 반사 특성을 고려함으로써, 보다 정확하게 전반사 성분을 검출, 회피하는 방법을 제안한다. 제안된 방법을 기존의 방법과 비교함으로써, 제안된 방법의 성능을 검증한다. 또한, 프로젝터 간의 기하 보정의 오차나 광학적 특성의 차이를 보완하기 위한 알고리즘을 개발, 이용함으로써 양질의 합성 결과를 제공해 준다.

• Archives of Plastic Surgery
• /
• v.44 no.3
• /
• pp.179-187
• /
• 2017

Recently, virtual reality (VR) and augmented reality (AR) have received increasing attention, with the development of VR/AR devices such as head-mounted displays, haptic devices, and AR glasses. Medicine is considered to be one of the most effective applications of VR/AR. In this article, we describe a systematic literature review conducted to investigate the state-of-the-art VR/AR technology relevant to plastic surgery. The 35 studies that were ultimately selected were categorized into 3 representative topics: VR/AR-based preoperative planning, navigation, and training. In addition, future trends of VR/AR technology associated with plastic surgery and related fields are discussed.

• 한국HCI학회:학술대회논문집
• /
• 2008.02a
• /
• pp.72-77
• /
• 2008

본 논문은 혼합현실(Mixed reality) 에 대한 새로운 접근법을 제시한다. 혼합현실은 실제환경 (Real environment)과 가상환경 (Virtual environment) 이 융합된 가상현실로서 기존의 혼합현실 연구자들은 두 환경을 가능한 정확하게 정합(Registration)시키고자 노력하였다. 이러한 노력은 때때로 복잡한 계산과정이나 부가적인 장치를 요하기도 한다. 부가적인 장치의 사용은 사용성문제를 유발할 뿐만 아니라 추가적인 비용도 요구한다. 우리가 제시하는 접근법은 이러한 노력들과는 반대로 많은 부분을 사용자의 인지력과 상상력에 의지한다. 즉, 사용자의 인지력으로 두 환경 간의 오차를 보정하며 심지어는 사용자에 의해 두 환경 간의 결합이 머릿속에서 이루어진다. 우리는 이러한 접근 방법을 Loosely Coupled Mixed Reality(LMR)라고 부른다. 본 논문에서는 혼합현실에 대한 새로운 접근법인 LMR에 대해 설명하고 LMR이 갖는 여러 가지 쟁점을 짚어보았다. 또한 LMR의 효과를 검증하기 위해 만든 골프 게임을 설명 하도록 하겠다.

• The Journal of the Korea Contents Association
• /
• v.9 no.5
• /
• pp.107-117
• /
• 2009

Depending heavily on CG technologies, the movies with CG generated characters and backgrounds focus on the reality effect in terms of the graphic itself. However, reality effect means a lot more in filmmaking than just pictorial representation. This study analyzes shot-by-shot a sample movie which has good staging as a part of film directing to increase reality effect in terms of diegesis and a film as a whole not just pictorial reality effect.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.12 no.2
• /
• pp.31-39
• /
• 2016

In this paper planed Virtual Reality user interface that recently hot issue using MVLS(Multipurpose Visual Language System). Proposed system is planed for more with ease approach new type environment system. The point of this system is for more few the number of time of act to get want to result. That is easy build for Virtual Reality environment system that user so far, who did not experience. Also too, application to the environment through Multipurpose Visual Language System based, can be required to increase the case of user of existing applications, not only a simple application infrastructure Virtual Reality. This has the advantage of being able to under Virtual Reality condition the environment for the use of a wide range of applications such as view TV, video and other contents. By using the proposed system, the experience in virtual realities that have not felt during the general public to be able to easily and quickly, virtual reality or 3D Expected to can one step closer to the needs of general and industry.

• International Journal of Contents
• /
• v.15 no.4
• /
• pp.36-43
• /
• 2019

This is an integrative review paper of Augmented Reality (AR)/Virtual Reality (VR) simulation programs in the mental health area including the analysis of the general characteristics, contents, and the impact of the interventions studies. The keywords used to search the studies were "AR/VR" and "medical/nursing students". The author and a postdoctoral research fellow searched four electronic databases: Web of Science, PubMed, EmBase, and CINHA, and as a result nine studies met the inclusion criteria. Among the selected studies AR/VR simulation programs in the mental health area for healthcare professionals were found to be effective in clinical skills as well as for the interpersonal relationship and the stigma of mentally ill patients. Providing an opportunity to experience a safe and effective tool is important when educating health professionals and AR/VR simulation programs are safe and effective. Thus, standardized AR/VR simulation programs are needed to be developed for health professionals.

• Korean Journal of Computational Design and Engineering
• /
• v.12 no.3
• /
• pp.171-181
• /
• 2007

Ubiquitous computing is a vision of our future computing lifestyle in which computer systems seamlessly integrate into our everyday lives, providing services and information in anywhere and anytime fashion. Augmented reality (AR) can naturally complement ubiquitous computing by providing an intuitive and collaborative visualization and simulation interface to a three-dimensional information space embedded within physical reality. This paper presents a service framework and its applications for providing context-aware u-car maintenance services using augmented reality, which can support a rich set of ubiquitous services and collaboration. It realizes bi-augmentation between physical and virtual spaces using augmented reality. It also offers a context processing module to acquire, interpret and disseminate context information. In particular, the context processing module considers user's preferences and security profile for providing private and customer-oriented services. The prototype system has been implemented to support 3D animation, TTS (Text-to-Speech), augmented manual, annotation, and pre- and post-augmentation services in ubiquitous car service environments.

• Journal of the Semiconductor & Display Technology
• /
• v.13 no.2
• /
• pp.17-21
• /
• 2014

As the applications and services based on the augmented reality are widely spread in various industry and public domain information dissemination areas, it is naturally necessary to provide the common information framework which can describe required detailed information for services. JPSearch which is released for unified access to image repositories can be utilized in this kind of infrastructure due to that the framework for augmented reality needs a constituent component which supports image repositories. In this paper, we propose a metadata schema which is designed for information architectural framework in the environment of augmented reality based on workflow. The proposed information schema can support the workflow of augmented reality related production system and service implementation.

• International journal of advanced smart convergence
• /
• v.5 no.4
• /
• pp.57-65
• /
• 2016

This paper aims to improve the quality of cultural experience by providing a three - dimensional guide service that enables users to experience themselves without additional guides and cultural commentators using the latest mobile IT technology to enhance understanding of cultural heritage. In this paper, we propose a method of constructing cultural contents based on location information such as user / cultural heritage using markerless tracking based augmented reality and GPS. We use marker detection technology and markerless tracking technology to recognize smart augmented reality object accurately and accurate recognition according to the state of cultural heritage, and also use Android's Google map to locate the user. The purpose of this paper is to produce content for introducing cultural heritage using GPS and augmented reality based on Android. It can be used in combination with various objects beyond the limitation of existing augmented reality contents.

• Journal of the Semiconductor & Display Technology
• /
• v.9 no.4
• /
• pp.99-102
• /
• 2010

In this study, the 3- dimensional (3-D) learning contents are suggested using 'Augmented Reality' instead of existing 2-dimensional (2-D) learning methods. At the present, there are some 2-D learning methods using texts, image, pictures, and videos called e-learning. However, these one-way 2-D methods have some disadvantages such as declining learner's immersion and concentration. Thus, the 3-D learning contents using 'Augmented Reality' are suggested to compensate the disadvantages. According to the development of information technology (IT), the augmented reality has many applications to the era of ubiquitous. However, there are some disadvantages when learners use these contents as following; non-augmenting by partially hiding from makers and declining concentration by patterns of the makers. In this study, the beneficial marker which can solve this non-augmenting phenomenon is suggested.