• Journal of Korea Multimedia Society
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• v.10 no.9
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• pp.1135-1142
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• 2007

Front-projection type displays make it difficult to apply traditional skin color detection for human hand because the projected beam not only reaches to the screen but also to the user's hand. This paper solves this problem by modeling the distortion between original image and its final camera input. Our approach improves hand detection rate by modeling of interference effect among color channels and of intra-frame intensity and also by introducing adaptive threshold for color difference in skin region.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.1
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• pp.37-44
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• 2009

This paper describes a new tiled display framework called, iTDF (Interactive Tiled Display Framework), that is designed to support rapid construction of the interactive digital 3D contents running on top of the cluster-based tiled display. This framework allows synchronizing the rendering slaves, sharing software's state over the network, the features, such as, launching multiple applications on a cluster-based computers, moving and resizing windows, synchronization of rendering slaves, distributed shared memory, and unified input interface. This paper analyzes the requirements of the framework and describes the design and implementation of the framework. A couple desktop-based applications are ported with the new iTDF and to find out the usefulness and usability of the framework.

• Journal of the Korea Computer Industry Society
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• v.6 no.5
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• pp.697-714
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• 2005

In this paper, we made a windows-based interactive presentation system using a laser pointer mouse. The system provides that a speaker controls the presentation interactively by means of a laser pointer. During the presentation, a display PC generates on its local display a bitmap corresponding to the presentation. This bitmap is then transmitted to the projector and the bitmap is then projected onto the screen. The display of the presentation is controlled by the monitoring of the laser spots that are also projected onto the screen. Laser spot control is achieved through a control system. When the processing section matches the successive laser spot positions with a pre-established spatial pattern, the corresponding display command is issued. The display command may be transmitted to the display computer which responds by an action like mouse function.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.43-53
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• 2010

The interactive display is providing various interaction modes to users through various ubiquitous computing technologies. These methods were studied for their interactions, but the limits that it is provided to only single user and the device usability were generated. In this paper, we propose a new type of spatial multi interaction interface that provide the various spatial touch interactive to multi users in the ambient display environment. Therefore, we generate the interaction surface so that a user can interact through the IR-LEDs Array Bar installed in the ceiling of the ambient display environment. At this time, a user can experience the various interactions through the spatial touch in an interaction surface. Consequently, this system offers the interactive display and interface method that the users can interact through natural hand movement without the portable devices.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.30-34
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• 2009

Recently, systems providing the interaction different according to an interval between a user and the display were developed in order to construct the ambient or the ubiquitous computing environment. Therefore, we propose a new type of spatial interaction system; our main goal is to provide the interactive domain in the large-scale ambient display environment. So, we divide into two zones of interaction dependent on the distance from the interaction surface interactive zone and ambient zone. In interactive zone, the users can approach the interaction surface and interact with natural hand-touch. When the users are outside the range of the interactive zone, the display shows only general information. Therefore, this system offers the various interactions and information to users in the ubiquitous ambient environment.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.3
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• pp.371-379
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• 2011

In this paper, we propose a development methodology of interactive stereoscopic image display system. In our case, we consider a multiple touch recognition technique as the interaction method. That's because we want to guarantee multiple user access and interaction to the content without any restriction. In this case, however, some restrictions are occurred on account of the distance between display and participants. For this reason, this paper propose an invisible interaction surfaces which are generated in the air. This surface is utilized as interaction medium instead of the display wall. We also present an effective way to generate and edit interactive stereoscopic images based on Game Engine.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.487-492
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• 2009

There will be many large displays in common public places, and we expect that these displays will give users many convenient interactive services. However, due to the physical size, typical mouse and keyboard are not suitable for user interactions on large displays. Recently there are many studies investigating on new interaction techniques and input devices developed for user interactions in a large display. In this paper, we describe the iTILE framework designed to help develop the interactive tiled display applications. Then we describe two iTILE applications using the tape switch interface and the tangible interface with infrared camera and markers.

• Journal of Digital Contents Society
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• v.19 no.9
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• pp.1679-1688
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• 2018

The development of digital technology has not only led to the development of expressive technology, but also to change in the process of production, expression media, production formats and methods, and communication with the audience. In one form, motion poster using LCD display instead of paper poster was introduced. This not only suggests the generation of posters with sound and movement on the ground, but also the possibility of expansion using the features of a platform called LCD displays. As part of this extension, this paper focuses on the "interactions" element and suggests a new interactive motion poster.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.368-370
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• 2012

이 연구는 관객과 상호작용이 가능한 홀로그램 아트의 구성방안을 제시한다. 이를 위하여 홀로그램을 디스플레이하고 인터랙션하는 방법을 설명한다. 제시하는 인터랙티브 홀로그램 아트는 홀로그램이 관객과의 상호작용을 통하여 새로운 미디어 예술을 보일 수 있다. 즉, 기존의 단순한 홀로그램 표현 기법에서 진화하여 공간에서 상호작용을 할 수 있도록 하여 새로운 미디어 아트에 적용할 수 있다.

• Journal of Korean Association for Spatial Structures
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• v.11 no.4
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• pp.71-78
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• 2011

Interactive media are applied to inner and outer space of small public space to enhance for the interaction between the spectator and works, also widely used in the exterior wall by LED and projector for advertisement. In the other hand, case studies of interactive media for large space have not less accomplished than those of buildings and public spaces. Thus, these studies analyzed 11 large structure examples by display, content, interface, and technology device by comparison of those cases of ordinary building public space. First interactive media for large space are found to be contents(39%), and next one is play(27%), advertisement(17%) and message(17%).