• Proceedings of the KSRS Conference
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• 2007.03a
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• pp.308-310
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• 2007

복사 보정에 해당하는 NUC(Non-Uniformity Correction)은 MSC 각각의 픽셀들이 가지는 상이한 특성을 균일한 이미지를 얻기 위해 보정하는 작업으로서 KOMPSAT-2 검보정 작업 중 Video Processor 의 Electrical Gain/Offset 의 보정 과 더 불어 매 우 중요한 비중을 차지하는 과정이다. 본 논문에서는 KOMPSAT-2 의 Panchromatic 밴드의 raw image 를 이 용한 NUC 보정 작업 의 과정과 그 결과에 대해서 소개하고자 한다.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.1091-1092
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• 2008

In this paper, it is described the performance of the breast cancer detection system that is composed of sensing, RF signal and image reconstruction part. Especially in the reconstruction algorithm, the amplitude and the phase of electric fields are used as compare value. So we improved to get the stable values of measured amplitude and phase of electric fields. Through compare images of reconstruction, we confirmed the performance of improved system.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.1093-1094
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• 2008

A tomography system using microwave multi-channel transceiver was fabricated and measured. The tomography system is applicable to detection of breast cancers in a human body. This system is configured by microwave muiti-channel transceivers, a illumination chamber housing monopole antennas and coupling liquid, and image reconstruction algorithm solving inverse scattering problem.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.227-228
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• 2008

A diagnosis based on EM is composed of multi-channel transceiver, antennas in illumination tank, liquid and image reconstruction algorithm for solving inverse scattering problem. The antennas in diagnosis were fabricated and measured in lossy liquid. The 10dB impedance bandwidth of the antenna is 600MHz - 3.5GHz

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.1089-1090
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• 2008

In this paper, it is applied the reconstruction algorithm to detection of breast cancer. To solve the forward and inverse problem, Finite-Difference Time-Domain (FDTD), Tikhonov regularization and Gauss-Newton method are used. And to confirm the accuracy of the algorithm, it is applied to arbitrary model.

• Journal of Korean Society for Geospatial Information Science
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• v.25 no.1
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• pp.47-54
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• 2017

Recently, there are many studies related aerial mapping project and 3 dimensional shape and model reconstruction using UAV(unmanned aerial vehicle) system and images. In this study, we create 3D reconstruction point data using image matching technology of the UAV overlap images, detect shape change of structure and perform accuracy assessment of area($m^2$) and volume($m^3$) value. First, we build the test structure model data and capturing its images of shape change Before and After. Second, for post-processing the Before dataset is convert the form of raster format image to ensure the compare with all 3D point clouds of the After dataset. The result shows high accuracy in the shape change of more than 30 centimeters, but less is still it becomes difficult to apply because of image matching technology has its own limits. But proposed methodology seems very useful to detect illegal any structures and the quantitative analysis of the structure's a certain amount of damage and management.

• Journal of Positioning, Navigation, and Timing
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• v.8 no.4
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• pp.175-181
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• 2019

This paper suggests a velocity integration algorithm for Synthetic Aperture Radar (SAR) motion measurement to reduce discontinuity of range error. When using position data from Embedded GPS/INS (EGI) to form SAR image, the discontinuity of the data degrades SAR image quality. In this paper, to reduce the discontinuity of EGI position data, EGI velocity integration is suggested which obtains navigation solution by integrating velocity data from EGI. Simulation shows that the method improves SAR image quality by reducing the discontinuity of range error. INS is a similar algorithm to EGI velocity integration in the way that it also obtains navigation solution by integrating velocity measured by IMU. Comparing INS and EGI velocity integration according to grades of IMU and GPS, EGI velocity integration is more suitable for the real system. Through this, EGI velocity integration is suggested, which improves SAR image quality more than existing algorithms.

• Journal of Sport and Applied Science
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• v.4 no.2
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• pp.31-43
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• 2020

Purpose: The purpose of this study is to provide fundamental information for professional sports and economy activation of cities, to explore mutual cooperative constructive relationship, and to investigate the Impact of Korean professional volleyball teams brand personality on city brand equity. Research design, data, and methodology: The study collected 500 survey responses and analyzed 478 surveys except for 22 which did not complete all items. For analyzing data, frequency, reliability, exploratory factor analysis, t-test, One-Way ANOVA, correlation, Multiple Regression were computed. Results: First, in difference in brand personality and city brand equity, due to gender, age, region of fan, significant difference were shown statistically in team image by gender, in honesty, interest and obdurability of brand personality by age, and in local community contribution, development possibility and sports facility of team image. Also, all factors show significant difference in region of fan. Second, regarding the impact of brand personality on city brand equity, honesty and capacity were shown to affect every factor of city brand equity, interest affected city image, and obdurability affected city perception. Conclusion: Professional teams need to develop win-win relationship with local community and seek to build positve image towards community fans via distinctive strategies for positioning.

• The Korean Nurse
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• v.32 no.2
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• pp.51-62
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• 1993

The hospital is not the place for functional isolationalism, that is, for each department to do their own activities independently. Rather it is an organization in which each part is joined together and concentrating on the same objectives. The hospital must maintain a one-system-function, so that all the resources of the hospital may be used efficiently. Although we do not yet completely understand how the nursing image as perceived by the medical team and the other members of the interdisciplinary team affects nursing practice. It is important to identify how the client recognizes the nursing image as this will influence the growth of the nursing profession directly and indirectly. So we must reevaluate the nursing image as presented to the client and find the ways to present them with a better image of nursing. The study procedures were as follow; First, the image of nurses was analyzed. The subjects for this study were 270 nurses, 172 doctors, 237 hospital employees, and 240 patients and their families from 5 local branches of the Yonsei Medical Center. The four negative responses shown in this study are as follows; 1) Nurses don't listen to patients. 2) Nurses are self-centered. 3) Nurses and careless. 4) Nurses are mechanical. Second, the concrete causes of the four negative responses were analyzed. Third, the contribution of the nurses for clinical practice, research and education was analyzed. Data were collected by questionnaires all seps of the research. Data were analyzed by use of SPSS/PC. In conclusion, the image of nurses differed according to which group, the respondents belonged. Generally, the public have a positive image of nurses, but hospital employees have a negative images of nurses. Further the nurses gave themselves a low grade. They showed negative as to the value of their job, professionality and their contribution to clinical practice when it was compared to that of the doctors.

• Journal of the Korean Society for Library and Information Science
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• v.38 no.4
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• pp.5-24
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• 2004

This study was conducted to find out how the team organization works and to suggest better ways of applying the team system to a library organization. In this study, the survey was conducted to examine the characteristics of the university libraries that have adopted the team system, and the problems in operation were analysed. The findings indicate that staffs at the university libraries had a comparatively negative image of the team system, and that university library has provided insufficient training and less supports for their staffs in the process of adopting the system. This study might be applicable to any strategy which seeks to reduce bureaucracy, empower staff, create a team system culture. and enhance the delivery of high qualify services.