• Journal of Digital Convergence
• /
• v.20 no.1
• /
• pp.301-307
• /
• 2022

Today, each broadcasting station makes the best use of CG (computer Graphics), which is the latest technology in election broadcasting, and competes to attract the eyes of viewers. This paper investigated the history of CG technology and design transitions in election ballot counting broadcasts from the perspective of CG designers. From the 1980s, when computer-based election ballot counting began, to the full-scale use of virtual studios, the image and technology produced by CG while watching the ballot-counting broadcast video of general elections, presidential elections, and local elections. We analyzed the utilization from various angles. In Korea, we started with the EDDS (Election Data Display System) developed in-house, created a database using a computer, and introduced manual animation CG every day from that time. After that, broadcasting stations focused on diverse and gorgeous CG image competition, and CG images were expanded from 2D to 3D while technology and design developed together. From 1985 to 1992, Korean broadcasting can be seen as a transitional period in which the image changes due to the emphasis on information power while utilizing digital technology.

• Journal of the Korea Convergence Society
• /
• v.12 no.5
• /
• pp.139-145
• /
• 2021

Through this study, we intend to study user satisfaction in order to verify whether there is a need for full-scale research, development and commercialization of document viewers in a VR environment. VR content consists of realistic 3D graphics and 360-degree video, and provides a synesthesia experience and immersion. We developed and tested a VR document viewer prototype that can utilize this concept as a document viewing system. It can act as a viewer that provides an interactive viewing environment according to the user's body interaction and the direction of the field of view, and it can be said that the feature of VR document viewer is that it can draw the user's high level of immersion and concentration when using the viewer. The developed prototype was tested in a test group consisting of 100 VR experiences and device owners for about 1 hour and 3 days a day, and then a questionnaire survey in the form of a fixed selection question was conducted. This study is a prototype study of a document viewer suitable for a virtual reality environment, and can lead to a sense of immersion when reading a document, and suggest a new document viewer direction that is effective for visual fatigue and visual perception of the document.

• Journal of the Korea Computer Graphics Society
• /
• v.13 no.3
• /
• pp.1-6
• /
• 2007

Anticipation effect has been used as a traditional skill to enhance the dynamic motion of the traditional 2D animation. Basically, anticipation means the action of opposite direction which performs before the real action step. In this paper, we propose the perception-based video anticipation method to guide a user's visual attention to the important region. Using the image based attention map, we calculate the visual attention region and then combine this map with temporal saliency of video. We apply the anticipation effect in these saliency regions using the blur kernel. Using our method, we can generate the dynamic video motion which has attentive guidance.

• 한국HCI학회:학술대회논문집
• /
• 2006.02b
• /
• pp.125-130
• /
• 2006

인터넷이 널리 보급되면서 발달한 온라인상에서 사용자들이 서로 공유된 가상공간의 다른 사용자와 상호작용할 수 있는 다사용자온라인게임은 그 시나리오나 수용방식에 대한 변화 가능성에 관한 내용을 다루고 있을 뿐, 그래픽 인터페이스에 관한 연구는 전무한 실정이다. 본 연구에서는 인터넷이라는 매체적 특징을 이용하여 다사용자온라인게임 사용자간의 상호작용에 주목하였고, 그러한 상호작용 요소를 중점적으로 한 그래픽인터페이스 요소를 추출하여 내용분석을 시행하였다. 본 내용분석을 위하여 각종 관련 게임 사이트에서 160개 게임의 905개 스크린 샷을 수집하여 빈도분석과 교차분석을 시행한 결과를 종합하여 보면 다사용자온라인게임은 3D그래픽 기술의 발전으로 캐릭터와 배경 및 시점에 있어 실재감 있는 화면과 애니메이션을 통해 사용자들의 가상현실 체험을 높이고 있다. 이를 위해 실재감을 방해할 수 있는 다른 조작요소의 색은 상대적으로 어둡고 공간을 작게 차지하도록 하는 경향을 띠고 있는 것으로 보인다. 이를 위해 기존의 게임과는 다른 인터페이스 레이아웃이 발전되어 자리잡고 있으며 또한 비교적 성공을 거둔 것으로 파악되는 인기도가 높은 게임의 경우를 미루어 보아 게임의 소재와 배경은 모호하게 설정하여 현실세계와 다르면서도 어디엔가 존재할 수 있음직한 세계를 설정하여 재미와 실재감을 동시에 높이고 있는 것으로 보인다. 또한 이러한 인터페이스의 변화를 주도하는 요인으로는 문화적, 기술적, 디자인적 요인으로 나뉠 수 있으며 각 요인들에 의한 획기적 인터페이스의 등장은 다른 게임들에도 영향을 미치게 되어 결국 인터페이스 유형 자체를 변화시키는 것으로 분석되었다.

• KIPS Transactions on Software and Data Engineering
• /
• v.6 no.12
• /
• pp.581-586
• /
• 2017

This paper proposes a GPU based water surface animation and rendering technique for interactive applications such as games. On the water surface, a lot of physical phenomenon occurs including reflection and refraction depending on the viewing direction. When we represent the water surface, not only showing them in real time, but also make them adjusted automatically. In our implementation, we are able to capture the reflection and refraction through render-to-texture technique and then modify the texture coordinates for applying separate DU/DV map. Also, we make the amount of ratio between reflection and refraction change automatically based on Fresnel formula. All proposed method are implemented using OpenGL 3D graphics API.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.10a
• /
• pp.727-728
• /
• 2015

Nowadays many videos are created with motiongraphics which has new visual effects and technology. The technique try to find out the image models which maximally stimulate the memories to transfer new visual information. The image will be expressed various ways with combining graphics and real scene with the help of computer. With the advances of VFX, the real and graphic scenes are more naturally combined to make believe its real scene. In this paper the novel motiongraphic technique, which uses tracking data from camera, is proposed.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2013.11a
• /
• pp.1649-1652
• /
• 2013

최근 정보기술의 발전에 가속화되면서 기존의 키보드나 마우스 같은 전통적인 제어장치들과는 달리 새로운 하드웨어 인터페이스들이 등장하고, 그에 따른 새로운 시각에서의 제어 방법들 등장하고 있다. 본 논문에서는 Leap Motion이라는 새로운 하드웨어 인터페이스를 사용할 때 제공되는 단순한 위치 정보만 쓰는 것이 아니라 어떠한 위치에 있는지, 특정 동작을 취했을 때 모션 등과 같은 정보들도 함께 사용하기 위해 손과 손가락을 인식할 수 있도록 모션 인식방법을 제안하고, 제안된 기술을 기반으로 3D Avatar를 제어 및 편집 후 애니메이션을 만들어 공유할 수 있는 모션제어 저작SW를 개발하였다. 본 기술은 의료, 게임, 교육 등 다양한 분야에서 새로운 제어 기술로서 활용될 수 있으며, 기존의 공간 터치 기술과는 다른 장점을 제공할 것으로 예상된다.

• Journal of KIISE:Computing Practices and Letters
• /
• v.6 no.5
• /
• pp.513-527
• /
• 2000

This paper describes our experience to design and implementation of a collaborative system framework that allows to develop certain collaborative applications such as 3D animation, computer game, and industrial design. The collaborative system enables users, who located in geographically long distance, to do collaborative work in a single virtual space. The proposed system basically consists of client and server system. The goal of proposed system is to support scalability, portability, and platform independent. In order to achieve these, the server is implemented in Java platform and is adopted to the hybrid architecture which takes the advantages both in centralized and decentralized collaborative system. We construct the server base on its functional characteristics so called User Manager Server (UMS), Session Manager Server (SMS), and Information Server (IS), The UMS manages the users who are taking part in the collaborative operations. The SMS supports the conferencing in the proposed system. The IS provides the connection methods among the UMSs. For user's convenience, we implement the client using Visual C++ in Windows. We also expend the functions of 3D Studio Max to distributed environment by means of the plug-in module, and facilitate the chatting and white board functions as well.

• Smart Media Journal
• /
• v.4 no.4
• /
• pp.111-119
• /
• 2015

As a variety of HMD(Head Mounted Display) has come out, the production of 3D images onto which VR(Virtual Reality) technologies are grafted has been contributed to activating the production of image contents depending on a tangible or immersing type. VR-based image contents have enlarged their applicability across the entertainment industry from animation and game to realistic images. At the same time, the solution development for producing VR image contents has also gained elasticity. However, among those production solutions which have been used until now, fixed stereo camera based photographing has a limit that the binocular disparity of a user is fixed. This does not only restrict a way of expression a producer intends to direct, but also may cause the effect of 3D or space not to be sensed enough as view condition is not considered enough in a user's side. This study is aimed at resolving with skills applying in the latter part of 3D image production the problem that convergence points may be adjusted with restriction, which tends to happen at the time of the production of VR image contents. The later stage of the 3D imaging work analyzes and applies to game engines the significance of adjusting convergence points through the visualization of binocular disparity so that it is available to implement a function that the points could be controlled at random by a user.

• Journal of Broadcast Engineering
• /
• v.15 no.2
• /
• pp.163-172
• /
• 2010

The free viewpoint video delivers an active contents where users can see the images rendered from the viewpoints chosen by them. Its applications are found in broad areas, especially museum tour, entertainment and so forth. As a new free-viewpoint application, this paper presents a stereoscopic free-viewpoint TIP (Tour Into Picture) where users can navigate the inside of a single image controlling a virtual camera and utilizing depth data. Unlike conventional TIP methods providing 2D image or video, our proposed method can provide users with 3D stereoscopic and free-viewpoint contents. Navigating a picture with stereoscopic viewing can deliver more realistic and immersive perception. The method uses semi-automatic processing to make foreground mask, background image, and depth map. The second step is to navigate the single picture and to obtain rendered images by perspective projection. For the free-viewpoint viewing, a virtual camera whose operations include translation, rotation, look-around, and zooming is operated. In experiments, the proposed method was tested eth 'Danopungjun' that is one of famous paintings made in Chosun Dynasty. The free-viewpoint software is developed based on MFC Visual C++ and OpenGL libraries.