• KIEAE Journal
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• 제7권5호
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• pp.35-40
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• 2007

The purpose of this study is to execute evaluation experiment to know the evaluation property of lighting environment of residential space for senior people, considering visual characteristics along aging, and finally provide basic data for the lighting plan to ensure the visual amenity. Processes of this study are as follows;1) Analyzed the variation property of visual sensibility and visual ability of senior people along aging. 2) Selected 3 types of life behavior(rest, conversation and reading) after checking life behavior in residential space for senior people based on advanced study. 3) Made the Mock-up Model that Dimming is possible, actual furnace to model. 4) Executed sensitivity evaluation experiment about lighting environment. 5) Analyzed evaluation property of lighting environment of residential space for senior people. Results of this study are as follows, 1) With lens-filter, we got comfort and amenity in bulb-color lamp which has similar color temperature with red of lens filter. 2) Lighting environment tests during conversation : With lens filters, they felt comfort on bulb color in case of higher illuminance than 850lux and daylight color in 500lux. 3) Lighting environment tests at reading : With lens filter, bulb color got better score in brightness and appropriateness than daylight color.

• 한국CDE학회논문집
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• 제13권6호
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• pp.429-439
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• 2008

With a remote operated manipulator system, the situation at a remote site can be rendered through remote visualized image to the operator. Then the operator can quickly realize situations and control the slave manipulator by operating a master input device based on the information of the virtual image. In this study, the remote operator visual support system (ROVSS) was developed for viewing support of a remote operator to perform the remote task effectively. A visual support model based on virtual environment was also inserted and used to fulfill the need of this study. The framework for the system was created by Windows API based on PC and the library of 3D graphic simulation tool such as ENVISION. To realize this system, an operation test environment for a limited operating site was constructed by using experimental robot operation. A 3D virtual environment was designed to provide accurate information about the rotation of robot manipulator, the location and distance of operation tool through the real time synchronization. In order to show the efficiency of the visual support, we conducted the experiments by four methods such as the direct view, the camera view, the virtual view and camera view plus virtual view. The experimental results show that the method of camera view plus virtual view has about 30% more efficiency than the method of camera view.

• 교육녹색환경연구
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• 제13권1호
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• pp.69-74
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• 2014

Intelligence of children is developed by psychological factors, and these are affected much by visual cognition. Language, behavior, arts, and cultural environment would be the main factors for visual cognitions of children. Therefore, the aim of this study is to set up those data for children intelligence development. For this, I researched, analyzed, and evaluated the esthetic consciousness of children on visual arts.

• 한국정보과학회논문지:소프트웨어및응용
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• 제32권1호
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• pp.50-61
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• 2005

멀티미디어 기기의 일반화로 여러 분야에서 영상처리 기술인력에 대한 수요가 증가하고 있으나, 실무능력을 가진 전문인력의 수는 시장의 요구에 비해 매우 적다. 영상처리 분야에 실무능력을 갖춘 전문인력을 양성하기 위해서는 이론교육과 함께 학습한 이론을 실제 영상에 적용하고 적용된 결과를 분석해 볼 수 있는 실습과정을 체계적으로 지원할 수 있는 비주얼 프로그래밍 환경이 필요하다. 본 논문에서는 효율적인 영상처리 교육이 이루어지도록 이론적인 내용과 이론에 따른 다양한 해법을 직접 체험해 볼 수 있고 학습과정에서 얻어진 새로운 아이디어를 쉽게 구현해 볼 수 있는 통합 환경인 비주얼 프로그래밍 환경을 제안한다. 제안된 시스템은 교육받은 내용을 실제 응용 시스템 개발 과정까지 일괄적으로 지원하는 통합 환경을 제공하고 있으며, 교재 및 학습자료들을 누적 관리하여 학생이나 교수자 모두에게 이상적인 영상처리 교육 및 연구 환경을 제공한다.

• 디지털산업정보학회논문지
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• 제12권2호
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• pp.31-39
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• 2016

In this paper planed Virtual Reality user interface that recently hot issue using MVLS(Multipurpose Visual Language System). Proposed system is planed for more with ease approach new type environment system. The point of this system is for more few the number of time of act to get want to result. That is easy build for Virtual Reality environment system that user so far, who did not experience. Also too, application to the environment through Multipurpose Visual Language System based, can be required to increase the case of user of existing applications, not only a simple application infrastructure Virtual Reality. This has the advantage of being able to under Virtual Reality condition the environment for the use of a wide range of applications such as view TV, video and other contents. By using the proposed system, the experience in virtual realities that have not felt during the general public to be able to easily and quickly, virtual reality or 3D Expected to can one step closer to the needs of general and industry.

• 한국환경생태학회지
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• 제37권6호
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• pp.473-483
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• 2023

본 연구에서는 실제 자연의 숲과 인위적으로 통제가 가능한 디지털 환경에서의 가상현실(VR)을 활용한 가상 숲에서의 체험이 피험자의 심리적 또는 생리적으로 미치는 치유효과를 알아보기 위하여 수행되었다. 이를 밝혀내기 위해 C대학 건강한 학부생 81명을 실험참가자로 2022. 9. 5~12. 9에 걸쳐 디지털 환경 내에서의 시각을 통한 산림자극 효과를 실험하였다. 실험은 디지털환경(2D, 3D)에서 숲 환경을 통한 시각적 산림자극의 심리적, 생리적 회복 효과를 평가하였다. 심리적 효과분석인 SRI(스트레스 반응척도)의 실험결과는 집단 간 차이가 통계적으로 유의한 것으로 나타났다. 심리적 스트레스 측정을 위한 SRI 실험 결과는 세 집단 중 Control 집단을 제외한 디지털 환경에서의 2D 집단은 사전과 사후 간 차이가 미미한 것으로 나타났다. 3D 집단에서는 사전보다 사후가 낮게 나타났다. 이 결과 산림을 기반으로 한 디지털 환경(2D, 3D)에서 시각을 통한 산림자극이 심리적 스트레스를 유의하게 감소시켜주는 효과가 있음을 확인하였다. 디지털환경 내에서 시각을 통한 산림자극이 EEG(뇌파)에 미치는 변화 분석 결과, 이완이나 안정화 때 활성화 되는 것으로 나타나는 알파파(RA)가 긴장이나 각성 때 발현되는 베타파(RB) 보다 활성화 되는 것으로 확인 되었다. 본 연구는 신체적 거동 불편 등 이동 제약으로 인하여 자연 숲 환경에서 체험을 할 수 없는 이용자들에게 디지털환경 내에서 가상현실(VR) 속 숲 환경을 구현하여 시각적 산림자극 체험 기회를 제공함으로서 심리적, 생리적 회복 환경을 만들어 주는데 사용 할 수 있을 것으로 사료된다. 이러한 연구 결과가 디지털 환경에서 산림치유에 대한 활용의 기반이 되길 기대하고, 가상현실(VR)을 이용한 프로그램이 산림치유 활동에 도움이 되기를 기대한다.

• KIEAE Journal
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• 제6권1호
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• pp.17-24
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• 2006

Daylight is a critical factor in architecture, as it enhances the working efficiency and visual comfort of the people working inside. Even though, low transmittance glazing has been used in the most office buildings in Korea. And it is reduced visual comfort in a indoor environment. So, we need to evaluation of quality for various daylighting systems to improve visual comfort This study aims to evaluate the visual comfort in a indoor environment by different daylighting system. For the purpose, four different daylighting systems-conventional window, conventional window with interior lightshelf, differentiated window, differentiated window with interior lightshelf-were selected and a questionnaire survey with 50 subjects were conducted. The results are as follows. Regardless daylighting systems, a view has an effect on visual comfort. A conventional system and conventional system with lightshelf were highly correlated between comfort and warmth. In case of differentiated window system were correlated between comfort and openness. Also, differentiated window with interior lightshelf were highly correlated between comfort and stability.

• 로봇학회논문지
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• 제9권4호
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• pp.197-205
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• 2014

As computer vision algorithms are developed on a continuous basis, the visual information from vision sensors has been widely used in the context of simultaneous localization and mapping (SLAM), called visual SLAM, which utilizes relative motion information between images. This research addresses a visual SLAM framework for online localization and mapping in an unstructured seabed environment that can be applied to a low-cost unmanned underwater vehicle equipped with a single monocular camera as a major measurement sensor. Typically, an image motion model with a predefined dimensionality can be corrupted by errors due to the violation of the model assumptions, which may lead to performance degradation of the visual SLAM estimation. To deal with the erroneous image motion model, this study employs a local bundle optimization (LBO) scheme when a closed loop is detected. The results of comparison between visual SLAM estimation with LBO and the other case are presented to validate the effectiveness of the proposed methodology.

• 한국농촌건축학회논문집
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• 제14권3호
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• pp.85-92
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• 2012

This study aims to evaluate the residential exterior environment and ascertain the factors having an effect on the visual environment viewed through the living room window. This study is based on a questionnaire on the exterior environment targeting residents living in the area of Nohyunng in Jeju city, Jeju-do. The results are as follows. First, residents are satisfied with the exterior environment as a whole; however, the longer-term residents' level of satisfaction is found to be relatively low while dissatisfaction is high. Additionally, there is a difference in satisfaction and dissatisfaction levels between the residents in their own housing and those in rental housing. The residents living in rental housing were found to have a relatively low level of satisfaction and high dissatisfaction. Second, in the case where the living room window faces roads, low satisfaction and high dissatisfaction levels with the visual environment were found, where the living room is on the first or second floor. Third, satisfaction and dissatisfaction with the exterior environment have a close correlation to the impression or nature elements of 26 questions but they show low correlation in size, height, color, design, traffic, artifact elements. Finally, as a result of extracting the factors influencing satisfaction and dissatisfaction with the visual environment, four factors were extracted including "Impression & Nature factor", "Building factor", "Design factor", and "Traffic volume & Artifacts factor". "Impression & Nature factors" is the most influencing factor with satisfaction and dissatisfaction and "Traffic volume & Artifacts factor" was found to have an effect on satisfaction, but not as clearly on dissatisfaction.

• 한국컴퓨터정보학회논문지
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• 제10권1호
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• pp.125-132
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• 2005

시각 프로그램은 GUI(graphic user interface)모듈과 프로세스 로직(logic) 모들로 구성된다. 시각 프로그램의 빠른 개발을 위한 대부분의 RAD(rapid application development)툴 들은 큰 규모의 시각 프로그램 개발에 있어 다중 개발자 참여를 지원하지 않는다. 또한 기존의 공동 작업 도구는 우선권 및 병행성(concurrency) 제어에 있어 유연성이 부족한 단점이 있다. 본 논문은 시각 프로그램 개발에 있어 개발자간 즉각적인 의견 교환을 통한 분업 개발을 지원할 수 있는 공동 개발 환경을 제안하다. 제안하는 공동 개발 환경은 개발자간 다양한 개발 정보 교환과 의견 수렴을 위한 통신 창을 제공하며 공동 작업 공간에서의 개발 공유 객체에 대한 접근 우선권 및 병행성 제어를 위한 실시간 작업 제어기를 포함한다. 따라서 개발자들은 공동 개발 단계에서 충분하고 즉각적인 의견 수렴이 가능하고 공동 개발 과정에 대한 일관성과 신뢰성을 유지할 수 있다. 특히, 제안하는 공동 개발 환경은 대규모 시각 프로그램 개발에 있어 단일 개발자의 개발 부담을 줄이고 개발자의 개발 능력과 특성에 따라 분산 형태의 공동 개발 참여를 유도하여 관련 시각 프로그램 개발 속도와 효율을 높일 수 있을 것으로 기대된다.