• KIEAE Journal
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• v.7 no.2
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• pp.9-15
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• 2007

Right of view out is one of the most important environmental factors that provide biological comfort and physical stability. Construction of high rise apartment buildings have caused to increase view obstruction cases and conflicts. Generally, when a field of a vision is completely blocked by other building, the percentage of a view is 0% and if the percentage is over 40%, it is regarded as acceptable. Autodesk VIZ program and the authors'-developed program were applied to evaluate a view right in apartment buildings and its effectiveness was verified by comparing computer simulation with actual photos.

• KIEAE Journal
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• v.7 no.2
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• pp.31-37
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• 2007

Despite of many supportive research to the usefulness of slide evaluation on environment of outdoor lighting, study method of using slides have provoked many discussions of its manifestation of reality of field conditions. This study aims to compare the results of slide survey with that of field survey. Distant view and short range view of nightscape of Seoul were selected. Field measurement of luminance and chromaticity were conducted and questionnaire survey were conducted. Frequency analysis, T-test, factor analysis were conducted. Results shows that distant view and short range view of field survey have better visual atmosphere than slide survey. In addition, slide survey on distant view shows lowest values. Difference between field survey and slide survey on distant view is much bigger than the results of short range view.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.462-464
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• 2022

This paper is a study on remote monitoring by measuring harmful gases using LabVIEW and MyRIO. Most gas measurements using Arduino are somewhat limited in using multiple sensors. MyRIO can measure multiple sensors, so it suggests a method of wirelessly transmitting them and monitoring them through LabVIEW.

• Proceedings of the Korea Society of Design Studies Conference
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• 2001.05a
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• pp.94-95
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• 2001

• Journal of the HCI Society of Korea
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• v.4 no.2
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• pp.9-16
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• 2009

3D stereo display systems gain more interests recently. Multiple-view autostereoscopic display system enables observers to watch stereo image from multiple viewpoints not wearing specific devices such as shutter glasses or HMD. Therefore, the Multiple-view autostereoscopic display is being spotlighted in the field of virtual reality, mobile, 3D TV and so on. However, one of the critical disadvantages of the system is that observer can enjoy the system only in a small designated area where the system is designed to work properly. This research provides an effective way of GPU based rendering technique to present seamless 3D stereo experiences from an arbitrary observer's view position.

• Proceedings of the Korea Contents Association Conference
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• 2003.11a
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• pp.223-226
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• 2003

When we detect side-view face in color image, we decide a candidate face region using skin-tone color, and confirm to the face by template matching. Cang Wei use a left and a right template of face, calculate to similarity value by hausdorff method, and decide the final side-view face. It has a characteristic that side-view face is wide spreading neck region. To get exactly result, face region is separated vertically by 3 pixel unit, and matched template. In this paper, we assume that a side-view face is a right side-view or a left side-view face. We separate a half of the candidate face region vertically, and regard a left side as left candidate face, a right side as right candidate face by template matching. This method detect faster than Gang Wei method.

• Journal of Korea Multimedia Society
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• v.20 no.2
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• pp.101-107
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• 2017

LabVIEW coding for video dehazing was developed. The dark channel prior proposed by K. He was applied to remove fog based on a single image, and K. B. Gibson's median dark channel prior was applied, and implemented in LabVIEW. In other words, we improved the image processing speed by converting the existing fog removal algorithm, dark channel prior, to the LabVIEW system. As a result, we have developed a real-time fog removal system that can be commercialized. Although the existing algorithm has been utilized, since the performance has been verified real - time, it will be highly applicable in academic and industrial fields. In addition, fog removal is performed not only in the entire image but also in the selected area of the partial region. As an application example, we have developed a system that acquires clear video from the long distance by connecting a laptop equipped with LabVIEW SW that was developed in this paper to a 100~300 times zoom telescope.

• Current Optics and Photonics
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• v.6 no.4
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• pp.420-429
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• 2022

In this paper, the details and design process of an optical system for space target detection cameras are introduced. The whole system is divided into three structures. The first structure is a short-focus visible light system for rough detection in a large field of view. The field of view is 2°, the effective focal length is 1,125 mm, and the F-number is 3.83. The second structure is a telephoto visible light system for precise detection in a small field of view. The field of view is 1°, the effective focal length is 2,300 mm, and the F-number is 7.67. The third structure is an infrared light detection system. The field of view is 2°, the effective focal length is 390 mm, and the F-number is 1.3. The visible long-focus narrow field of view and visible short-focus wide field of view are switched through a turning mirror. Design results show that the modulation transfer functions of the three structures of the system are close to the diffraction limit. It can further be seen that the short-focus wide-field-of-view distortion is controlled within 0.1%, the long-focus narrow-field-of-view distortion within 0.5%, and the infrared subsystem distortion within 0.2%. The imaging effect is good and the purpose of the design is achieved.

• Journal of Veterinary Clinics
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• v.17 no.1
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• pp.178-186
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• 2000

Echocardiography was performed on 29 normal Korea Jin-do dogs(21 adults and 8 prematures) and the images were taken from chordae tendineae level short-axis view, left ventricular outflow tract long-axis view and 4-chamber long-axis view, respectively. The following cardiac parameters, in systole and diastole, were measured on the echoocardographic images: aortic dimension(AO), left atrial dimension(LA), left ventricular internal dimention at end-diastole (LVIDd), left ventricular internal dimention at end-systole(LVIDs), interventricular septal wall thickness at end-diastole(IVSd), interventricular septal wall thickness at end-systole(IVSs), left ventricular wall at end-diastole(LVWd), left ventricular wall at end-systole(LVWs). The cardiac parameters were not significantly different between sex and among imaging planes. The size of cardiac parameters increaed as regression lines according to body weights. These results suggest that the chordae tendineae level short-axis view, left ventricular outflow tract long-axis view and 4-chamber long-axis view can be utilized for the left cardiac examination, and these cardiac parameters can be used to basic dat for diagnosing the cardiac diseases in Korea Jin-do dog.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.6
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• pp.1082-1087
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• 2006

This paper presents a gas turbine data acquisition and monitoring system using a LabVIEW programming. The developed real-time monitoring system entitled a C-Tune DAS Plays an important role to make an analysis of the real-time operation of the gas turbine under maintenance. the LabVIEW based software is divided into three parts according to their original functions; Data acquisition, Data analysis and display, and Data storage. The data acquisition part receives data from a PMS (Plant Management System) server and two cFPs (Compact-Field Point). To verify the validity of the developed system, it is applied to gas turbines in the combined cycle power plant in Korea.