• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.237-239
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• 2014

다수 사용자의 스마트폰 사용패턴을 협업적인 방법으로 분석할 경우 모바일 기기에 대한 선호도 분석, 과몰입 정도 판단 등 다양한 관련 연구에 활용될 수 있다. 본 연구는 스마트폰의 사용패턴 분석을 통한 사용자 맞춤형 서비스 개발을 위하여 로그데이터를 추출하여 서버에 저장하는 시스템을 설계하고 구현하는 것을 목표로 한다. 사용자의 스마트 폰 로그데이터를 수집하기 위하여 모바일앱을 개발하고 모바일앱을 통해서 추출된 로그데이터를 저장할 서버 DB 를 구축하고 유사성 분석을 위한 협업필터링 엔진을 개발하였다. 개발된 시스템의 성능 평가를 위하여 일부 사용자에 대한 사용패턴 데이터셋 구축 실험을 수행하였으며 후속 연구를 위한 실험 환경을 설계하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1378-1381
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• 2013

가상현실 체험형 콘텐츠는 컴퓨터를 이용하여 만들어낸 가공의 상황이나 환경을 사람의 감각 기관을 통해 느끼게 하여 사용자가 몰입감을 느끼고 상호작용하게 하는 기술이다. 본 연구에서는 스마트폰에서 LBS, Push 기술을 활용하여 증강현실 및 실감체험 기능이 있는 앱 실행 시 사용자 의도에 따른 콘텐츠 제공이 매치되기 위한 방안을 제안하였다. 그 예로 임의의 관광지에서 실제 피사체와 피사체를 비추는 스마트폰 카메라 화면속의 이미지가 일치되었을 때 카메라와 피사체간의 거리를 정확히 계산하는 방법으로 코사인 법칙 및 카메라 초점거리를 이용한 거리계산 방법을 제시하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.238-241
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• 2021

가상현실은 시·공간을 초월하는 경험이 가능하며 아이들의 몰입감과 학습효과를 높일 수 있어 교육 도구로서의 가치를 인정받고 있다. 정부는 VR 기기를 전국의 초등학교에 보급하고 있지만, 양질의 교육용 실감형 콘텐츠는 부족한 상황이다. 따라서, 본 논문에서는 가상현실 기술을 활용한 국악기 연주 체험 프로그램을 제안하였다. Unity의 물리 엔진과 Oculus의 햅틱 기능을 이용하여 전통 국악기 중 편경을 실감 나게 연주할 수 있도록 가상환경을 구현하였다. 리듬 게임 형식을 적용하여 아이들의 흥미 또한 유발하였다. 이 프로그램을 통해 국악기를 직접 연주하며 해당 국악기에 대한 지식을 자연스럽게 습득할 수 있을 것이라 기대한다.

• Journal of KIISE:Computing Practices and Letters
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• v.8 no.6
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• pp.679-691
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• 2002

Volume visualization is an important subarea of scientific visualization, and is concerned with techniques that are effectively used in generating meaningful and visual information from abstract and complex volume datasets, defined in three- or higher-dimensional space. It has been increasingly important in various fields including meteorology, medical science, and computational fluid dynamics, and so on. On the other hand, virtual reality is a research field focusing on various techniques that aid gaining experiences in virtual worlds with visual, auditory and tactile senses. In this paper, we have developed a visualization system for CAVE, an immersive 3D virtual environment system, which generates stereoscopic images from huge human volume datasets in real-time using an improved volume visualization technique. In order to complement the 3D texture-mapping based volume rendering methods, that easily slow down as data sizes increase, our system utilizes an image-based rendering technique to guarantee real-time performance. The system has been designed to offer a variety of user interface functionality for effective visualization. In this article, we present detailed description on our real-time stereoscopic visualization system, and show how the Visible Korean Human dataset is effectively visualized on CAVE.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.325-332
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• 2006

본 고에서는, 리턴 채널을 이용하여 단일 시나리오 상에서 다수의 시청자들 상호간에 다양한 interaction 을 제공하는 Interactive-Book 을 제안한다. 기존의 e-Book 이 단순히 전통적인 종이 재질의 책 내용을 디지털 화한 뒤 이를 PC 혹은 PDA 상에서 접할 수 있도록 한 것이라면, 디지털 방송 환경에서의 Interactive - Book 은 기존의 Text 컨텐츠와 연관 있는 동영상, 애니메이션, 나레이션 등을 함께 제공하여 독자의 흥미를 유발시키는 동시에 컨텐츠에 대한 몰입감을 증대 시킨다. 또한, Interactive-Book 은 여러 사용자 들이 시나리오 상의 서로 다른 등장인물을 선택한 뒤, 리턴 채널로 연결되는 서버와 통신하여 시나리오상에서 자신이 선택한 등장 인물의 Role Playing을 제공한다. 그리고 각각의 사용자는 다른 시청자가 선택한 등장인물의 행동에 따라 자신이 선택한 캐릭터(등장인물)의 행동에 제약을 받거나, 혹은 반대로 다른 등장 인물에게 제약을 가할 수 있다. 아울러, 본 논문에서는 Interactive-Book 컨텐츠가 디지털 방송에서 현재 방송중인 채널의 컨텐츠와 관련 있는 연동형 애플리케이션 혹은 방송 채널과는 무관한 독립형 애플리케이션으로 제공 될 수 있음을 보이고, 효율적인 컨텐츠 개발, 수정, 제공을 위한 Interactive-Book 애플리케이션 개념 정립, 구조설계와 더불어 Xlet 을 이용한 애플리케이션 구현 방법에 대하여 논할 것이다.

• Journal of Korea Entertainment Industry Association
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• v.5 no.2
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• pp.87-95
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• 2011

Recently, the issue has been tangible game environment due to the various interactive interface developments. In this paper, we propose the multi card touch based interactive arcade system by using marker recognition interface and multi-touch interaction interface. For our system, the card's location and orientation information is recognized through DI-based recognition algorithm. In addition, the user's hand gesture tracking informations are provided by the various interaction metaphors. The system provides the user with a higher engagement offers a new experience. Therefore, our system will be used in the tangible arcade game machine.

• Cartoon and Animation Studies
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• s.22
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• pp.81-97
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• 2011

The technology of 'Virtual Reality' has placed in advanced tools for human beings' joy and anger together with sorrow and pleasure in our generation. It has recently tried in a variety ways to use as an implication for treatment in the field of Cognitive Psychology. Especially, it widely approaches to human in terms of that a sense of reality in a virtual world through the five senses should reinterpret the meaning of cognition in the real world. Based on this paradigm shift, it allows for new treatment using the technology of virtual reality. A typical example is a field of Therapy in order to overcome panic disorder. It has advantages that in particular development of flexible interaction technologies in a virtual space can lead patients to experience psychological environments rather than physical one. the interaction technology provides environments in which users' five senses can be actively stimulated, it is very useful that information from the experiences in the virtual world allows people to learn through real experiences by renewing potential energies, advantages of Virtual Reality Therapy can be customized treatment by depending on symptoms in patients with panic disorder and are capable of differentiate application for the cure at each stage. It is to treat by leading patients to get accustomed to environments and situations in real world through care process with each symptom and stage. It is helpful that based on A Human-Sensibility Ergonomics, technologies like immersive virtual reality equipment, force-relative feedback and stereophonic sound, and like stimulating the sense of smell make people to induce experiences by stimulating human's five senses. There are many advantages of immersion in virtual world in that the phenomenon such as challenge, interaction, reality, illusion, and cooperation is expanded. As an application for therapy by growing such augmented reality, virtual space and sharing of data through the Internet and also inexpensive its availability have recently expanded the base. There are other benefits of Virtual Reality Therapy offering active interaction environments for cognitive experience which can provide appropriately adjusted environments for patients who are hard to overcome the real situation because of phobia. In addition to that it is safe and economical and patients' confidentiality is assured. Moreover, due to the principles of applying real-time navigation the Virtual Reality Therapy makes modification and supplementation easier and also it can reduce cybersickness because of the supply of Lenticular allowing people to see stereoscopy without eyeglasses, which makes sense of presence clearer. On top of that due to the development of interactive technologies, it is becoming close to sense of reality similar to real world by leading users to navigate by themselves and to operate objects in a virtual space. This paper will therefore examine, although it is of limited, characteristics of application of virtual reality technology based on A Human-Sensibility Ergonomics used for treatment for a disorder. this paper will analyse a range of its application and problems and it will suggest the future possibilities.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.33-37
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• 2008

The interaction between artificial fish and aquatic surroundings and the fish's realistic locomotion are very important elements to construct virtual aquariums. In general, the artificial fish in virtual aquariums used to be created by 3D modeling tools, and was repeatedly showing the simple and constant form of swimming. This paper will analyze the sorts of biological forms of fish-swimming and the propelling and turning characteristics. Then, we propose a method of the basic swimming and turning of artificial fish to generate various and natural-looking locomotion. It is possible to make a explorable virtual aquarium more immersive by using interactive interfaces together.

• Smart Media Journal
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• v.1 no.2
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• pp.40-46
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• 2012

In this paper, we describe interactive contents which is used the result of the inputted interface recognizing vision-based body gesture. Because the content uses the imp which is the common culture as the subject in Asia, we can enjoy it with culture familiarity. And also since the player can use their own gesture to fight with the imp in the game, they are naturally absorbed in the game. And the users can choose the multiple endings of the contents in the end of the scenario. In the part of the gesture recognition, KINECT is used to obtain the three-dimensional coordinates of each joint of the limb to capture the static pose of the actions. The vision-based 3D human pose recognition technology is used to method for convey human gesture in HCI(Human-Computer Interaction). 2D pose model based recognition method recognizes simple 2D human pose in particular environment On the other hand, 3D pose model which describes 3D human body skeletal structure can recognize more complex 3D pose than 2D pose model in because it can use joint angle and shape information of body part Because gestures can be presented through sequential static poses, we recognize the gestures which are configured poses by using HMM In this paper, we describe the interactive content which is used as input interface by using gesture recognition result. So, we can control the contents using only user's gestures naturally. And we intended to improve the immersion and the interest by using the imp who is used real-time interaction with user.

• Journal of Digital Convergence
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• v.15 no.11
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• pp.463-470
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• 2017

Currently, virtual reality contents using VR images are spotlighted since they can be easily created and utilized. But because VR images are in a state of lack of interaction, there are limitations in their applications and usability.In order to overcome this problem, we propose a new method in which 360 degree panorama image and game engine are utilized to develop a high resolution of interactive VR service in real time. In particular, since the background image, which is represented by a form of panorama image, is pre-generated through a heavy rendering computation, it can be used to provide a immersive VR service with a relatively small amount of computation in run time on a low performance device. In order to show the effectiveness of our proposed method, an interactive game of a virtual zoo environment was implemented and illustrated showing that it can improve user interaction and immersion experience in a pretty good way.