• 방송과미디어
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• 제11권4호
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• pp.118-131
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• 2006

최근 초고속 인터넷과 디지털미디어의 획기적인 발전으로 전통적인 시청각미디어의 한계를 뛰어넘어 인간의 오감을 자극할 수 있는 실감방송이 차세대 방송기술로 등장하고 있다. 본 논문은 인간의 오감 중 촉각을 중심으로 하여 시청자들이 시청각미디어를 만지고 느낄 수 이는 촉각방송시스템은 전체적으로 촉가미디어의 획득 및 생성하는 단계 다양한 촉각미디어를 한 화면에 편집하고 저작하는 단계, 저작된 콘텐츠를 압축 및 전송하는 단계, 전송된 콘텐츠를 단말장치를 통해 재현하는 단계로 이루어진다. 촉각방송에서 촉각미디어는 시청자가 미디어를 능동적으로 만지고 조작하거나 미디어에서 제공하는 움직임을 따라하거나 촉감을 피부로 느낄 수 있도록 3차원 현상, 조작기능(버튼, 슬라이더, 조이스틱 등), 촉각 표면 특성(딱딱함, 정적 마찰계수, 동적 마찰계수, 거칠기 등), 움직임(위치, 속도, 가속도 등), 촉감 정보 등을 포함한 매체로 정의한다. 제안한 촉각방송 시스템에서는 3차원 객체 만지고 조작하기, 3차원 영상 만지기, 역감 재생, 촉감 재생 등의 네 가지 촉각 상호작용이 가능하며 적용례로써 홈쇼핑, 촉감효과가 가미된 영화, 지휘 교육 시나리오를 제시하였다.

• 한국의류학회지
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• 제43권4호
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• pp.474-490
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• 2019

Fashion films with screen limits have a way of changing communication methods through sensorial organs in order to go beyond limits. This study shows that such change is possible if fashion films are based on haptic factors. This study examines haptic factors of fashion films from the three perspectives of filming factors of different shot size, synesthetic, and cinematic screen methods. First, when the subject to be emphasized is enlarging, the observer comes to project themselves to the situation and incurs a haptic sensation. Second, when associating an experience by personal recollection or social customs when more than two senses are stimulated simultaneously, haptic sensations, triggered by multiple senses, takes place. Third, a blurred image shows haptic sensations through inducing observers to see into the meaning of a shot. As a result, the senses of the observer enlarge and enhance a communication ability through absorbing and accepting a fashion film. Furthermore, fashion films are effective in understanding the cultural forms of the age.

• 동력기계공학회지
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• 제13권2호
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• pp.71-82
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• 2009

This paper presents a real-time haptic rendering method for a realistic force feedback in a remote environment with varying communication time-delay. The remote environment is assumed as a virtual environment based on a computer graphics, for example, on-line shopping mall, internet game and cyber-education. The properties of a virtual object such as stiffness and viscosity are assumed to be unknown because they are changed according to the contact position and/or a penetrated depth into the object. The DARMAX model based output estimator is proposed to trace the correct impedance of the virtual object in real-time. The output estimator is developed on the input-output relationship. It can trace the varying impedance in real-time by virtue of P-matrix resetting algorithm. And the estimator can trace the correct impedance by using a white noise that prevents the biased input-output information. Realistic output forces are generated in real-time, by using the inputs and the estimated impedance, even though the communication time delay and the impedance of the virtual object are unknown and changed. The generated forces trace the analytical forces computed from the virtual model of the remote environment. Performance is demonstrated by experiments with a 1-dof haptic device and a spring-damper-based virtual model.

• ETRI Journal
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• 제38권6호
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• pp.1085-1094
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• 2016

In this work, we present interactive automultiscopic content with mobile surface haptics for multimodal interaction. Our system consists of a 40-view automultiscopic display and a tablet supporting surface haptics in an immersive room. Animated graphics are projected onto the walls of the room. The 40-view automultiscopic display is placed at the center of the front wall. The haptic tablet is installed at the mobile station to enable the user to interact with the tablet. The 40-view real-time rendering and multiplexing technology is applied by establishing virtual cameras in the convergence layout. Surface haptics rendering is synchronized with three-dimensional (3D) objects on the display for real-time haptic interaction. We conduct an experiment to evaluate user experiences of the proposed system. The results demonstrate that the system's multimodal interaction provides positive user experiences of immersion, control, user interface intuitiveness, and 3D effects.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2003년도 ISIS 2003
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• pp.236-239
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• 2003

In this paper, we investigate the issues for the design and implementation of tele-operation system based on the haptic interface. Here, the 3-DOF haptic device and the x-y-z stage are employed as master controller and slave system respectively. In this master-slave system, the force feedback algorithm, the modeling of virtual environments and the control method of x-y-z stage are proposed. In this paper, inernet network is used for data communication between master and slave. We construct virtual environment of the real convex surface from the force-feedback in controlling the X-Y-Z stage and getting the force applied by the 3-DOF haptic device.

• 한국정밀공학회지
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• 제30권3호
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• pp.300-307
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• 2013

This paper describes the development of a cylindrical-object grasping force measuring system applied haptic technology to measure the grasping force of strokes patients' fingers and other patients' paralyzed fingers. Because the cylindrical-object and the force measuring device of the developed cylindrical-object grasping force measuring system are connected with the electrical wires, patients and their families have difficulty not only measuring the patients' grasping force using the system but also knowing their rehabilitation extent when using it. In this paper, the cylindrical-object grasping force measuring system applied haptic technology was developed, and the cylindrical-object grasping force measuring device sends data to the rehabilitation evaluating system applied haptic technology by wireless communication. The grasping force measurement characteristic test using the system was carried out, and it was confirmed that the rehabilitation extent of the patients' paralyzed fingers and normal people fingers can be evaluated.

• 한국인터넷방송통신학회논문지
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• 제10권4호
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• pp.77-82
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• 2010

본 연구에서는 가상낚시시스템(VFS, Virtual Fishing System)을 위해 제작된 햅틱장치인 FishBot을 개발한다. FishBot는 XY테이블에 휠축을 장착한 3자유도 로봇으로 구성된다. 물고기의 동작을 모사하기 위해 XY 축 제어는 토크값을 가변적으로 제한하는 모션 위치 제어 모드로 하고 휠 축은 힘제어 모드로 하였다. 낚싯대는 실제 낚싯대에 LED를 장착하고 웹 카메라를 튜닝하여 낚싯대의 위치를 인식할 수 있도록 하였다. 결과적으로 제작된 Fishbot은 물고기와 같이 위치와 속도를 변화하고 DAC를 통해 낚는 힘을 제어할 수 있으며 낚싯대 끝단의 위치를 관측하여 가상현실시스템(Virtual Reality System)상에서 연동할 수 있게 하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.1171-1172
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• 2008

In this paper, we investigate the issues on the design and implementation of tele-operation system based on the haptic interface. Here, the 3-DOF haptic device and the X-Y-Z stage are employed as master controller and slave system respectively. For this master-slave system, the force feedback algorithm, the modeling of virtual environments and the control method of X-Y-Z stage are presented. In this paper, internet network is used for data communication between master and slave.

• 한국실천공학교육학회논문지
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• 제5권1호
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• pp.34-39
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• 2013

본 연구에서는 사용자에게 가상환경에 존재하는 교육컨텐츠와 자연스럽게 안터랙션 할 뿐 아니라 인터랙션 양에 따라서 사용자에게 햅틱 정보를 전달해 줄수 있는 휴대용 입력장치를 제시한다. 제안하는 시스템은 사용자의 움직임을 측정하고 움직임에 따라서 사용자에게 햅틱 정보를 되돌려 준다. 교육 컨텐츠와 사용자의 인터랙션에 따른 햅틱 감각을 생성하기 위해 제안하는 입력장치는 모션 제어기, 햅틱 액츄에이터, 무선 통신 모듈, 그리고 모션센서로 구성한다. 사용자의 모션 입력을 측정하기 위해서 가속도 선서를 사용한다. 실험을 통해 제안하는 시스템이 떨림없이 안정적이고 연속적인 햅틱 감각이 생성됨을 파악한다.

• 융복합기술연구소 논문집
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• 제6권1호
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• pp.43-47
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• 2016

In this paper, we report a work-in-progress about development of multi-drone system for smart agriculture. The multi-drone system is controlled via a haptic teleoperation by a human operator. The purpose of the multi-drone system is that let the human operator to easily handle the multiple drones which are maintaining a fixed formation using ZigBee communication network.