• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권9호
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• pp.2232-2245
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• 2013

The present study proposes efficient procedural modeling methods for enabling the growth and creation of various trees with minimal user control. Growth volume algorithms are utilized in order to easily and effectively calculate many parameters that determine tree growth, including branch propagation. Procedural methods are designed so that users' interactive control structures can be applied to these algorithms to create unique tree models efficiently. First, through a two-line-based interactive growth volume control method, the growth information that determines the overall shape of the tree is intuitively adjusted. Thereafter, independent branch control methods designed to control individual branches are added to the growth deformation in order to enable the growth of unique trees. Whether the growth processes of desired trees can be easily and intuitively controlled by the proposed method is verified through experiments. Methods that can apply the proposed methods are also verified.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1102-1105
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• 2004

In this paper, the problem of a viewer's head tracking in a desktop-based interactive stereoscopic display system is considered. A fast and low-cost approach to the problem is important for such a computing environment. The system under consideration utilizes a shuttle glass for stereoscopic display. The proposed method makes use of an image taken from a single low-cost video camera. By using a simple feature extraction algorithm, the obtained points corresponding to the image of the user-worn shuttle glass are used to estimate the glass center, its local 'yaw' angle, as measured with respect to the glass center, and its global 'yaw' angle as measured with respect to the camera location. With these estimations, the stereoscopic image synthetic program utilizes those values to interactively adjust the two-view stereoscopic image pair as displayed on a computer screen. The adjustment is carried out such that the so-obtained stereoscopic picture, when viewed from a current user position, provides a close-to-real perspective and depth perception. However, because the algorithm and device used are designed for fast computation, the estimation is typically not precise enough to provide a flicker-free interactive viewing. An error concealment method is thus proposed to alleviate the problem. This concealment method should be sufficient for applications that do not require a high degree of visual realism and interaction.

• 방송공학회논문지
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• 제25권7호
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• pp.1042-1051
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• 2020

In this paper, we propose an AR (Augmented Reality) lip makeup using bare hands interactively using an RGB camera. Unlike previous interactive makeup studies, this interactive lip makeup system is based on an RGB camera. Also, the system controls the makeup area in pixels, not in polygon-units. For pixel-unit controlling, the system also proposed a 'Rendering Map' that can store the relative position of the touched hand relative to the lip landmarks. With the map, the part to be changed in color can be specified in the current frame. And the lip color of the corresponding area is adjusted, even if the movement of the face changes in the next frame. Through user experiments, we compare quantitatively and qualitatively our makeup method with the conventional polygon-unit method. Experimental results demonstrate that the proposed method enhances the quality of makeup with a little sacrifice of computational complexity. It is confirmed that natural makeup similar to the actual lip makeup is possible by dividing the lip area into more detailed areas. Furthermore, the method can be applied to make the face makeup of other areas more realistic.

• 한국정보과학회논문지:시스템및이론
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• 제28권12호
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• pp.620-631
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• 2001

게임이나 가상 현실 등의 대화형 처리에서 다관절체의 동작을 실시간으로 처리할 필요성이 증가하고 있다. 최근에는 다관절체의 동작을 사실적으로 표현하기 위하여, 제약 동역학(constrained dynamics)방법들이 사용되고 있으나, 이 방법들은 사용자의 요구가 빈번한 가상 공간에서 다관절체의 동작을 실시간으로 처리하기는 곤란하다. 본 논문에서는 다관절체의 동작을 비교적 사실적이면서도 빠르게 생성하기 위한 절차적 방법(procedural method)을 제안한다. 이 방법에는 다관절체를 구성하는 세그먼트들의 동역학적 움직임과 조인트에서의 기하학적 제약 조건을 따로 처리함으로써, 복잡한 선형 시스템의 풀이 과정을 피하였다. 결과적으로 본 본문이 제안하는 방법은 필요한 계산량을 줄임으로써 실시간 처리가 가능하다. 제안하는 방법의 구현 결과로서, 일반적인 PC 환겨에서 인형 형태 다관절체의 동작을 대화형으로 실시간에 처리할 수 있음을 보인다. 이러한 방법들은 가상 공간에서의 캐릭터 애니메이션 등에 적용할 수 있을 것으로 기대된다.

• 안보군사학연구
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• 통권3호
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• pp.197-242
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• 2005

Active catalog is a kind of digital content that enables consumers to test the functions and features of products from their PCs as if they were using it in real life, by simulating the actions and responses of the product. This new type of interactive digital content can be used extensively to make sales personnel training manuals, sales tools, user manuals and user trouble shooting documents. With active catalogs, companies will be able to compare different designs, show actions according to different functions, and evaluate user reaction to new products without having to produce a single physical prototype or mock-up. At the same time, consumers will be able to understand and 'operate' the product and make well-informed purchase decisions. In this paper, we present a visual event-driven modeling tool, PlayMo, for creating active catalogs, analyze the advantages of using PlayMo, describe the event-driven method used by PlayMo and also introduce two enhanced characteristics of the Event Flow Chart with which the events in PlayMo are structured. Interactive digital content by using the PlayMo3D makes easy, simple and effective design for e-learning, e-catalogue, e-marketing/sales, e-prototyping, customer support, etc. Through its application-ready 3D function visualization solution, engineers and designers can rapidly turn a CAD design model into a 3D interactive virtual product, and the effective function prototyping job can be also completed within a minute.

• 한국멀티미디어학회논문지
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• 제22권6호
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• pp.738-747
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• 2019

Both within the country and internationally, discussions about core technologies that will be prominent in future society have been initiated, and software education for the rapidly changing industrial framework has been essential and implemented in earnest. Also, there is an increasing interest in interactive technology and software education where people and people, people and computers, and computers and objects communicate with each other in today's day-to-day life, connected through the digital world. Therefore, it is necessary to investigate the user's field of interest and the best technical education method for teaching how to operate the production tool for implementing the interactive technology. In this study, we utilize the Processing program which is widely used as interactive technology software training and creativity tool to improve the understanding of the interactive technology related to the 4th industrial revolution. This study aims to determine and propose the best method of using a Processing library that can be applied to each major field.

• 디지털융복합연구
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• 제12권9호
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• pp.353-358
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• 2014

인터렉티브 아트는 관람객들과 상호 작용을 전제로 예술 작품을 구현하는 것으로 가상성, 몰입성, 상호작용성을 특징으로 한다. 그에 따라 관람객이 작품으로 몰입하게 하는 연구는 매우 중요하다. 현재까지 인터렉티브 아트분야에서, 몰입을 측정하기 위해서는 주로 설문지나 인터뷰, 정신 생리학적인 방법을 이용하였다. 그러나 이 방법들은 작품 관람 이후에 진행되어져서 정확한 몰입 측정이 어려우며 작품 관람에 방해를 줄 수 있다. 본 연구에서는 이를 개선하기 위해서 모바일 기기와 카메라를 이용하여 관람객들의 동선을 파악하고 관람시간을 중심으로 한 몰입 측정 방법을 제안한다. 본 논문은 작품의 몰입 정도를 파악하는데 도움을 제공한다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2005년도 학술대회
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• pp.209-212
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• 2005

This paper introduces interactive multi-view contents authoring system based on MPEG-4. The MPEG-4 standard, which aims to provide an object based audiovisual coding tool, has been developed to address the emerging needs from communications, interactive broadcasting as well as from mixed service models resulting from technological convergence. Due to the feature of object based coding, it has been considered that MPEG-4 is the most suitable for interactive broadcasting content production. This feature is suitable for creation of the content which provides multiple views of object or scene in interactive manner. In this paper, we categorize the multi-view visual content into two types: panoramic multi-view content and object multi-view content. And design and implementation of the authoring system for interactive multi-view contents is presented. We believe that the proposed method can be effectively used for further deployment of MPEG-4 content to various interactive applications.

• 한국기록관리학회지
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• 제16권3호
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• pp.31-67
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• 2016

최근 다양한 형태의 디지털 기록물들이 증가하면서 이를 기술하고 접근을 제공하는 방식에도 변화가 요구되는 실정이다. 미국, 호주, 영국 등 해외의 문화유산기관에서는 방대한 양의 기록을 한 눈에 브라우징 할 수 있도록 해주는 인터랙티브 시각화를 도입하여 기록물에 접근하는 방식을 다양화하고 있다. 본 연구에서는 인터랙티브 시각화 기법을 기록물에 적용하기 위해 인터랙티브 시각화의 필요성을 조명하고 해외 문화유산기관의 인터랙티브 시각화 사례를 분석하였다. 사례분석을 통해 도출한 공통된 시각화 요소 및 기법을 적용하여 국가기록원의 기록물을 다양한 방식으로 시각화하였다.

• 한국실내디자인학회논문집
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• 제21권5호
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• pp.57-64
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• 2012

The ideologie of modern society as per something to phenomenology problem is to show various different looks. The community space is spring from Greek and Roman of community place by agora and forum is make a active communicate to interpersonally. Subject to centrically In the context, this paper is study on the Sustainable development for community space about interactive space. and focusing is Response to human of interact in each other intelligent space. And this paper suggestion is composition method of community space in technology advanced, Interactive interface form for human, sustainable to community space direction elements. First, I'll rearrange the distinctive features of modern society through references of various scholars. This is to understand how interactivity affects the whole society and what is the importance of this interactive wave. Second, I'll analyze several trends of modern community space and figure the change of methodology of design based on the advancement of design technology. This is to understand the interactive relation of the subjects. Third, I'll seek how community space design has changed in modern society and under which process design is made. This is to clarify the fact that the portion of interaction will increase in future design according to the intervention of equipment, which is one of the objects of interaction space.