• Title/Summary/Keyword: tele presence

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A Study on the Tree-dimensional Space Simukation using First Person Shooter leverl Editor (FPS레벨에디터를 이용한 1인칭 공간시뮬레이션에 관한 연구)

  • Kim, Jong-Hyun;Jun, Han-Jong;Kim, Suk-Tae
    • Korean Institute of Interior Design Journal
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    • v.15 no.5 s.58
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    • pp.306-313
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    • 2006
  • Digital simulation which was introduced to the architectural field due to the rapid growth of computer graphics, gave birth to a new type of contents called 'virtual reality', led by the interaction with the users and real time processing. The public attention is drawn to the virtual reality's potential as a next generational space simulation it, having the unique characteristics of 'simulation', 'interactivity', 'tole-presence', and 'immersion', is capable of taking a virtual tour of a space with a size equivalent to that of a real space, as well as proceeding with the design progress. Nonetheless, many problems impeding CPU's real time processing of an excessively loaded architectural model data have been pinpointed over the time. Yet such GPU based game engines as 'DirectX' and 'OpenGL', developed to deal with these impediments, have not been easily applied to the architectural simulation in the design process, due to the high license cost and the specific technical requirements for the system. The virtual reality has been developed and distributed centering around the gaming field, and game developers recently show a greater tendency to include level editors in the package for the expandability purpose. Thus, we plan to propose architecture simulation which utilizes level editors in this study. In addition, the compatibility of the game engine based level editors of Quake and Unreal which form the standards for the open source FPS games, based on VRML, the standard format for the virtual reality, was compared and analyzed. Taking the example of Villa Savoye of Le Corbusier, its application possibility as an architecture simulation was assessed, by measuring the extent to which the performance of such characteristic features of the virtual reality as interactivity, immersion, and tele-presence, was improved.

Visual Sharing: A View Sharing Technique for Multi-party Collaboration Environments (Visual Sharing: 다자간 원격 협업 환경에서의 View 공유 기술)

  • Kim, Nam-Gon;Kim, Jong-Won
    • 한국HCI학회:학술대회논문집
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    • 2008.02a
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    • pp.643-647
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    • 2008
  • ACE (Advanced Collaboration Environment) [1] aims to provide people to have remote collaboration as they are in the same Space. To provide tele-presence in remote collaboration, quality of audio and sharing of view which can show overall environment. Visual Sharing focuses on providing interactive view sharing among remote participants. A user can see remote collaboration space from any direction and can share his working screen view with others. In this paper, we summarize the development plan of Visual Sharing and relevant elementary techniques for developing Visual Sharing.

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The Present and Future of Robotic Surgery (로봇수술의 현재와 미래)

  • Rha, Koon-Ho
    • Proceedings of the KIEE Conference
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    • 2008.10b
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    • pp.68-70
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    • 2008
  • Since the beginning of the 21st century, the emergence of innovative technologies made further advances in minimal access surgery possible. Robotic surgery and telepresence surgery effectively addressed the limitations of laparoscopic procedures, thus revolutionizing minimal access surgery. Surgical robots provide surgeons with to technologically advanced vision and hand skills. As a result, such systems are expected to revolutionize the field of surgery. In that time, much progress has been made in integrating robotic technologies with surgical instrumentation. However, robotic surgery will not only require special training, but it will also change the existing surgical training pattern and reshape the learning curve by offering new solutions, such as robotic surgical simulators and robotic telementoring. This article provides an introduction to medical robotic technologies, develops a possible classification, reviews the evolution of a surgical robot, and discusses future prospects for innovation. In the future, surgical robots should be smaller, less expensive, easier to operate, and should seamlessly integrate emerging technologies from a number of different fields. We believe that, in the near future as robotic technology continues to develop, almost all kinds of endoscopic surgery will be performed by this technology.

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Standard Model for Live Actor and Entity Representation in Mixed and Augmented Reality (혼합증강현실에서 라이브 행동자와 실체 표현을 위한 표준 모델)

  • Yooa, Kwan-Hee
    • Journal of Broadcast Engineering
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    • v.21 no.2
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    • pp.192-199
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    • 2016
  • Mixed and augmented reality technique deals with mixing content between real world and virtual world containing augmented reality and augmented virtuality excluding of pure real and pure virtual world. In mixed and augmented reality, if a live actor and entity moving in real world can be embedded more naturally in 3D virtual world, various advanced applications such 3D tele-presence, 3D virtual experience education and etc can be serviced. Therefore, in this paper, we propose a standard model which is supporting to embed the live actor and entity into 3D virtual space, and to interact with each other. And also the natural embedding and interaction of live actor and entity can be performed based on the proposed model.

Depth map temporal consistency compensation using motion estimation (움직임 추정을 통한 깊이 지도의 시간적 일관성 보상 기법)

  • Hyun, Jeeho;Yoo, Jisang
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.2
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    • pp.438-446
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    • 2013
  • Generally, a camera isn't located at the center of display in a tele-presence system and it causes an incorrect eye contact between speakers which reduce the realistic feeling during the conversation. To solve this incorrect eye contact problem, we newly propose an intermediate view reconstruction algorithm using both a color camera and a depth camera and applying for the depth image based rendering (DIBR) algorithm. In the proposed algorithm, an efficient hole filling method using the arithmetic mean value of neighbor pixels and an efficient boundary noise removal method by expanding the edge region of depth image are included. We show that the generated eye-contacted image has good quality through experiments.

The effects of an increase in self - determination experience on the behavior of young children with autism spectrum disorder by telepresence robot. (텔레프레젠스 로봇을 이용한 자기결정 경험의 증대가 자폐범주성 장애유아의 행동에 미치는 효과 (자기결정 활동 멀티미디어 콘텐츠의 적용을 통하여))

  • Kim, Su-Jin
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.12 no.1
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    • pp.38-45
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    • 2018
  • The purpose of this study was to investigate the effects of an increase in self - determination experience on the behavior of young children with autism spectrum disorder by telepresence robot. As for research method, the study used AB design, two selected children engaged in activities with a telepresence robot in free play time in the morning. The activities were conducted in 19 sessions, twice a week, 15 to 40 minutes each. To investigate the effect of the activity on the child's behavior was observed using the behaviors of free play time and work time in the afternoon. All the process was recorded by a camera and then analyzed by frequency recording. The results of the study are as follows. First, the participation of young children with autism spectrum disorder in free play time increased. Second, choice-making or preference behavior of young children with autistic spectrum disorder were increased. This study suggests that increasing the self-determination experience of young children with autism spectrum disorders using telepresence robots increases their participation and increases their choice-making or preference behavior.

Stereo Matching Algorithm by using Color Information (색상 정보를 이용한 스테레오 정합 기법)

  • An, Jae-Woo;Yoo, Ji-Sang
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.3
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    • pp.407-415
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    • 2012
  • In this paper, we propose a new stereo matching algorithm by using color information especially for stereo images containing human beings in the applications such as tele-presence system. In the proposed algorithm, we first remove the background regions by using a threshold value for stereo images obtained by stereo camera and then find an initial disparity map and segment a given image into R, G, B and white color components. We also obtain edges in the segmented image and estimate the disparity from the extract boundary regions. Finally, we generate the final disparity map by properly combining the disparity map of each color component. Experiment results show better performance compared with the window based method and the dynamic programing method especially for stereo images with human being.

Design of an Economic Service Robot Hand Based on Biomimetics and TRIZ (생체 모방학과 트리즈를 이용한 보급형 서비스 로봇 핸드의 설계)

  • Ko, Hun-Keon;Cho, Chang-Hee;Kim, Kwon-Hee
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.34 no.11
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    • pp.1741-1747
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    • 2010
  • This work presents a study on the design of an economic service robot hand for tele-presence manipulators. The conceptual design of new robot hand is derived from biomimetics approach. Guided by the analysis of human arm' musculoskeletal structure, the fingers are actuated by cables and actuators in the forearm. High tension in the cables is achieved by screw-nut mechanism driven by DC motors. A set of combination springs is incorporated in each of the screw-nut mechanism for easy control of gripping force. The first prototype revealed difficulties with finger control and coupling problem between gripping force and wrist movement. The solutions to these problems have been derived from the contradiction analysis of TRIZ. The second design has been verified by tests on various objects with different weight and shape for full range of wrist motion.