• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.62-67
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• 2009

Many interaction methods for augmented reality has attempted to reduce difficulties in tracking of interaction subjects by either allowing a limited set of three dimensional input or relying on auxiliary devices such as data gloves and paddles with fiducial markers. We propose Spatial Interaction (SPINT), a noncontact passive method that observes an occupancy state of the spaces around target virtual objects for interpreting user input. A depth-sensing camera is introduced for constructing the virtual space sensors, and then manipulating the augmented space for interaction. The proposed method does not require any wearable device for tracking user input, and allow versatile interaction types. The depth perception anomaly caused by an incorrect occlusion between real and virtual objects is also minimized for more precise interaction. The exhibits of dynamic contents such as Miniature AR System (MINARS) could benefit from this fluid 3D user interface.

• Journal of Convergence for Information Technology
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• v.9 no.1
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• pp.151-157
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• 2019

As the interest in home furnishing becomes more focused due to the increase of small-sized households, the need for a virtual simulation system for this purpose is increasing. However, in the case of existing virtual simulation systems, simulation is performed using a virtual object in a virtual space, so accurate simulation results can not be derived. In the case of a simulation using an augmented reality, Thereby causing inconsistency in space. In this paper, we propose a system that performs the home furnishing simulation by modifying and enhancing objects in the process of matching feature coordinates of real space.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.2
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• pp.866-871
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• 2012

Most of the computer to implement a Augmented reality 3-D, or a graphic or visual means through the virtual space. The participants in the Augmented reality immersive virtual reality and virtual reality, the process proceeds to change the world. In particular, the field of children's games and Augmented reality fits well with the technical characteristics of the children that may lead to more interesting and creative sector is pointing to. In this study, children's games in order to maximize learning effectiveness of board games and Augmented reality technology, take a look at the characteristics of the children's educational program is to propose a new model proposal.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.3
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• pp.391-397
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• 2020

Realistic content such as virtual reality, augmented reality, and mixed reality is emerging as an innovative technology in the education field in that it allows people to safely and efficiently experience dangerous, expensive or impossible situations, such as disaster training or space travel. Recently, as government agencies have supported a lot for producing virtual augmented reality contents about education, various educational contents using virtual augmented reality technology have been developed through the Edutech industry. Many virtual augmented reality-based educational contents are being developed, but mixed reality-based educational contents are very limited which could be more effective for education. This study examines the basic method of producing mixed reality educational contents using Hololens and, on the basis of this, it proposes the method for producing scientific experiment contents. Hololens made it possible to share information in real time without a regular desktop PC, and it is effective for teachers to manage and evaluate students in real time.

• Journal of Korea Game Society
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• v.17 no.2
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• pp.35-44
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• 2017

Recent years have witnessed a surging popularity of games based on augmented reality and virtual reality. While old games embody virtual reality within the game platform, recent popular games based on augmented reality and virtual reality incorporate reality into virtual worlds. They present a new genre that is unprecedented, combined with what gamers have a passionate desire for, and thus provide new experiences. Good examples include smartphone games that were the game changer of the gaming industry in 2010 and the sensational $Pok{\acute{e}}mon$ Go that is gaining popularity nowadays. This study, thus, set out to analyze "gaming act(GA)" directly connected to the experiences of gamers to shed light on games as experiential content. The study analyzed gaming acts based on Park Sang-woo (2009) and assumed that gaming acts would change greatly according to the degree of real space intervening in game space; thus, examining changes to the gaming acts of games in two aspects of realizing virtual space from imaginations in game space and reproducing virtual space in real space.

• Korean Institute of Interior Design Journal
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• no.36
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• pp.136-142
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• 2003

This study suggest the development and application of the Interactive Design Toolkit as a participatory design method for general customer with the application of the Augmented Reality. The Toolkit is based on a PC-based image perception system and user can make virtual models and navigate in the virtual space by manipulating physical objects directly in real world. The toolkit can be used in the field of participatory design in systematically modularized and customizable design area including model house of apartment and system kitchen furniture. More improved design toolkit for enhancing reality and providing various Interaction method Is needed hereafter.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.10 no.4
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• pp.143-147
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• 2011

The system using augmented reality can save the time and cost. It is verified in various fields under the possibility of a technology by solving unrealistic feeling in the virtual space. Therefore, augmented reality has a variety of the potential to be used. Generally, multimodal senses such as visual/auditory/tactile feed back are well known as a method for enhancing the immersion in case of interaction with virtual object. By adapting tangible object we can provide touch sensation to users. a 3D model of the same scale overlays the whole area of the tangible object; thus, the marker area is invisible. This contributes to enhancing immersive and natural images to users. Finally, multimodal feedback also creates better immersion. In this paper, sound feedback is considered. By further improving immersion learning augmented reality for children with the initial step learning content is presented. Augmented reality is in the intermediate stages between future world and real world as well as its adaptability is estimated more than virtual reality.

• Korean Journal of Computational Design and Engineering
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• v.19 no.2
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• pp.111-118
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• 2014

In tangible augmented reality (AR) environments, the user interacts with virtual objects by manipulating their physical counterparts, but he or she often encounters awkward situations in which his or her hands are occluded by the augmented virtual objects, which causes great difficulty in figuring out hand positions, and reduces both immersion and ease of interaction. To solve the problem of such hand occlusion, skin color information has been usefully exploited. In this paper, we propose an approach to simple and effective construction of a skin color map which is suitable for hand segmentation and tangible AR interaction. The basic idea used herein is to obtain hand images used in a target AR environment by simple image subtraction and to represent their color information by a convex polygonal map in the YCbCr color space. We experimentally found that the convex polygonal map is more accurate in representing skin color than a conventional rectangular map. After implementing a solution for resolving hand occlusion using the proposed skin color map construction, we showed its usefulness by applying it to virtual design evaluation of digital handheld products in a tangible AR environment.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.481-486
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• 2008

Recent advanced interlace technologies allow the user to interact with different spaces such as Virtual Reality (VR), Augmented Reality (AR) and Ubiquitous Computing (UC) spaces. Here, we present a LEGO House application, a collaborative application which involves multi interaction spaces -VR, AR and UC spaces. The LEGO House application is built based on the VARU framework which is designed for enabling the prototyping of a tangible space application. The application is about an interior design. One user is located in the combined AR and UC space and interacts with the AR LEGO house and the physical smart devices. The other users interact with the virtual LEGO house but they share the same environment, the LEGO house. Therefore, they can collaborate together as they are co-located.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.676-678
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• 2010

Conventional Augmented Reality has used data gloves or markers for smooth interaction between objects and background. This causes inconvenience of use and lower immersion. To build up immersion in Augmented Reality, additional input devices must be removed. This paper proposes a method to create virtual space coordinates for interaction without wearing additional input devices so as to improve immersion in Augmented Reality. The acquired image was projected to a two-dimensional space and vanishing lines were extracted to calculate the virtual space coordinates. Then the sizes of the inserted objects were varied in accordance with the size of the virtual coordinates area based on the image projected onto the two-dimensional coordinates. This resulted in improved immersion. This method can increase the efficiency of object creation by excluding the use of a 3D modeler for creation of three-dimensional objects.