• Journal of the Korea Computer Industry Society
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• v.6 no.2
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• pp.317-324
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• 2005

The web technology related with internet at present is changed into the 3D interactive environment form one sided communication of simple contents. In this paper, a high quality interactive Web3D Contents was realized by using the TurnTool, a authoring tool. This paper suggests the method that can easily and quickly realize the Web3D manual which is more realistic md capable of interaction with user. This method makes up for the weak points in the existing Web3D tool system. Therefore we can realize the contents that able to easily interact through minimizing file size md omitting procedure of additional EAI(External Authoring Interface) by using the Java Script.

• Journal of Multimedia Information System
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• v.2 no.2
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• pp.207-214
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• 2015

In this paper, we proposed new software for 3D rendering of MR images in the medical domain using C# wrapper of Visualization Toolkit (VTK) and Microsoft .NET framework. Our objective in developing this software was to provide medical image segmentation, 3D rendering and visualization of hippocampus for diagnosis of Alzheimer disease patients using DICOM Images. Such three dimensional visualization can play an important role in the diagnosis of Alzheimer disease. Segmented images can be used to reconstruct the 3D volume of the hippocampus, and it can be used for the feature extraction, measure the surface area and volume of hippocampus to assist the diagnosis process. This software has been designed with interactive user interfaces and graphic kernels based on Microsoft.NET framework to get benefited from C# programming techniques, in particular to design pattern and rapid application development nature, a preliminary interactive window is functioning by invoking C#, and the kernel of VTK is simultaneously embedded in to the window, where the graphics resources are then allocated. Representation of visualization is through an interactive window so that the data could be rendered according to user's preference.

• The Journal of the Korea Contents Association
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• v.6 no.12
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• pp.269-277
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• 2006

In this paper, we propose an interactive system that generates emotional expressions from arm gestures. By extracting relevant features from key frames, we can infer emotions from arm gestures. The necessary factor for real-time animation is tremendous frame rates. Thus, we propose processing facial emotion expression with 3D application for minimizing animation time. And we propose a method for matching frames and actions. By matching image sequences of exagerrated arm gestures from participants, they feel that they are communicating directly with the portraits.

• The Journal of the Korea Contents Association
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• v.13 no.4
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• pp.64-72
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• 2013

This paper proposes a dynamic gesture recognition algorithm using SVM(Support Vector Machine) which is suitable for multi-dimension classification. First of all, the proposed algorithm locates the beginning and end of the gestures on the video frames at the Kinect camera, spots meaningful gesture frames, and normalizes the number of frames. Then, for gesture recognition, the algorithm extracts gesture features using body parts' positions and relations among the parts based on the human model from the normalized frames. C-SVM for each dynamic gesture is trained using training data which consists of positive data and negative data. The final gesture is chosen with the largest value of C-SVM values. The proposed gesture recognition algorithm can be applied to the interactive storybook as gesture interface.

• International Journal of Control, Automation, and Systems
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• v.5 no.3
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• pp.295-306
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• 2007

It is well known that mathematical solutions for multi-agent planning problems are very difficult to obtain due to the complexity of mutual interactions among multi-agents. Most of the past research results are thus based on the probabilistic completeness. However, the practicality and effectiveness of the solution from the probabilistic completeness is significantly reduced by heavy computational burden. In this paper, we propose a practically applicable solution technique for multi-agent planning problems, which assures a reasonable computation time and a real world application for more than 3 multi-agents, for the case of general shaped paths in agent movement. First, to reduce the computation time, an extended collision map is developed and utilized for detecting potential collisions and obtaining collision-free solutions for multi-agents. Second, a priority for multi-agents is considered for successive and interactive modifications of the agent movements with lower priority. Various solutions using speed reduction and time delay of the relevant agents are investigated and compared in terms of the computation time. A practical implementation is finally provided for three different types of agents to emphasize the effectiveness of the proposed interactive approach to multi-agent planning problems.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.05a
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• pp.283-291
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• 2005

The development of mobile applications is fast in recent years. However, nearly all applications are for messaging, financial, locating services based on simple interactions with mobile users because of the limited screen size, narrow network bandwidth, and low computing power. Processing an algorithm for supporting a group decision process on mobile devices becomes impossible. In this paper, we introduce the mobile-oriented simple interactive procedure for support a group decision making process. The interactive procedure is developed for multiple objective linear programming problems to help the group select a compromising solution in the mobile Internet environment. Our procedure lessens the burden of group decision makers, which is one of necessary conditions of the mobile environment. Only the partial weak order preferences of variables and objectives from group decision makers are enough for searching the best compromising solution. The methodology is designed to avoid any assumption about the shape or existence of the decision makers's utility function. For the purpose of the experimental study of the procedure, we developed a group decision support system in the mobile Internet environment, MOBIGSS　and applied to an allocation problem of investor assets.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.494-497
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• 2008

DIMPEC, Direct Interactive Motion Picture Electronic Commerce technique is not only that gain additional detail information on the entry properties and actor custom by seeing and hearing VOD and TV drama with internet but also source technology which can buy product using electronic commerce. Also, this is enable to construct in variety platform environment like internet, PDA, MOBILE, Settop box, and this is a technology where competition is very high due to application is possible to satellite DMB, and DMB for ground which is high technology IT. DIMPEC is expected that next generation business model will be formed by combining to user participation, consumption magnification of mobile contents, advancement and intelligence of internet service which is next generation internet business model which combines this technique.

• International journal of advanced smart convergence
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• v.13 no.3
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• pp.253-258
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• 2024

This paper explores the factors influencing the degree of freedom in open-world games, taking <The Legend of Zelda: Tears of the Kingdom> as a case study, it is carefully analyzed in comparison to similar well-known games such as <Genshin>,<Elden Ring>, and <Far Cry>. It also analyzes how the player skill system and its synergy with the combination of interactive elements can effectively enhance the freedom of the game. The results show that the diversity of player skill systems not only significantly enhances the in-game strategy and depth of exploration, but also the rich combination of interactive elements further enhances players' tactical flexibility. This paper also points out that simply expanding the map size while neglecting the content richness and balance of quest design can have negative impacts on the game. This study aims to provide game developers with insights that emphasize the application of skill diversity and interactive elements to improve players' gameplay freedom and overall experience.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.1008-1009
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• 2006

There is an application which uses smoothing reacter connecting each of the phases in order to make the system smaller comparison with an application using the insulating transformer in the utility interactive photovoltaic generation system using the PWM converter. In this case, there might be the occurence of the unbalance of output voltage, by the difference of smoothing reactor, connected on each of the lines. Therefore this study proposes that the method which maintains the balance and compensates the unblance which occured by the different volume of the smoothing reactor connected on each of the lines.

• Proceedings of the IEEK Conference
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• summer
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• pp.387-390
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• 2004

In this paper, we design and implement practical application service using VoiceXML. And we suggest new solutions of problems can be occurred when implementing a new systems using VoiceXML, based on the fact. Up to now, speech related services were developed using API (Application Program Interface) and programming languages, which methods depend on system architectures. It thus appears that reuse of contents and resource was very difficult. To solve these problems, nowadays, companies develop their applications using VoiceXML. Advantages of using VoiceXML when developing services are as follows. First, we can use web developing technologies and technologies for transmitting web contents. And, we can save labors for low level programming like C language or Assembler language. And we can save labors for managing resources, too. As the result of these advantages, we can reduce developing hours of applications services and we can solve problem of compatibility between systems. But, there's poor grip of actual problems can be occurred when implementing their own services using VoiceXML. To overcome these problems, we implemented interactive stock trading system using VoiceXML and concentrated our effort to find out problems when using VoiceXML. And then, we proposed solutions to these problems and analyzed strong points and weak points of suggested system.