• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 1999년도 추계학술대회 논문집 - 한국공작기계학회
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• pp.119-124
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• 1999

This paper presents new approach to technology pattern recognition of camera back cover and test of soldering. In real-time implementing of pattern recognition camera back cover and test of soldering, the MVB-03 vision board has been used. Image can be captured from standard CCD monochrome camera in resolutions up to 640$\times$480 pixels. Various options re available for color cameras, a synchronous camera reset, and linescan cameras. Image processing os performed using Texas Instruments TMS320C31 digital signal processors. Image display is via a standard composite video monitor and supports non-destructive color overlay. System processing is possible using c30 machine code. Application software can be written in Borland C++ or Visual C++

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.684-688
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• 2009

In this paper, it proposes the technique to restore from a binary image in the color image. The color image is composed of three element images of red, green and blue. Therefore, the color image is first divided into a red, green, and blue element, and the Inverse Halftoning[2]$\sim$[4] is processed to each element images. Finally, each element images is collectively displayed. In that case, the Kalman filter was applied to the Inverse Halftoning for the restoration accuracy improvement of the image. As a result, it was possible to restore it in the color image as well as the time of a monochrome image. Moreover, the result that the restoration accuracy had improved even when which combining with the technique by using the Kalman filter for the Inverse Halftoning so far came out.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.79-82
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• 2002

In this paper, we investigate the characteristics of luminous efficacy as a function of Xe partial pressure in AC PDP. SDR structure has shown much larger increment of luminous efficacy compared with the conventional one especially below 10% Xe contents. The luminous efficacy around 4.0 lm/W is achieved with Ne-Xe10%, 400Torr in Monochrome green phosphor test panel under 10kHz continuous sustaining frequency.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 1999년도 제30회 추계학술대회
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• pp.103-113
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• 1999

Point contact film thickness in elastohydrodynamic lubrication (EHL) is analyzed by the image processing method for the monochromatic incident light. Interference between the reflected lights both on Cr coating of glass disk and on super finished ball makes circular fringes, which are regarded as film thickness together with numbering of fringe order. In this study, we developed technology to measure the film thickness by analyzing dark and bright intensity waves which results from monochrome green light. Two typical fringe patterns only with intensity values 3re examined for the measurement of point contact EHL film thickness. We expect that this technology will give valuable clue to improve color image processing analysis for high resolution of EHL film thickness with white incident light.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 D
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• pp.2795-2797
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• 2003

기존의 X-ray System을 보면 방사선 소스와 방사선을 가시광선으로 변환시키는 형광판, 그리고 이 발광된 빛을 증폭시키는 작용을 하는 영상 증배관과 필름으로 구성된다. 이에 따른 시스템의 부피와 한 장의 필름이 나오기까지의 과정 등이 매우 번거롭다. 이 시스템을 저비용의 디지털 X-ray 시스템으로 대체함에 있어서 형광판과 디지털 CCD카메라를 이용하여 저가이면서 시스템 자체는 간소화시킨 X-ray시스템을 개발하고자한다. X-ray이미지는 형광판의 밀도와 카메라의 분해능에 따라 그 해상도가 결정이 되지만, 이번연구에서는 8bit의 분해능에 $1300{\times}1030$의 해상도를 갖는 Monochrome Digital 카메라를 사용하고, 기존 시스템에 사용되던 간접촬영용 형광판을 사용하였다. 기존시스템의 영상증배관을 배제시켜 후처리에 중점을 두어 시스템은 간소화하고, 저비용을 실현시켰다.

• 대한원격탐사학회지
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• 제5권1호
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• pp.29-39
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• 1989

A study to develop generalized and systematically designed satellite image processing software system on mainframe computer was successfully carried out. Commercially available softwares such as LARSYS were analyzed and modified, and well known satellite data processing algorithms were implemented into comprehensive software. New algorithms were also presented and developed. The contents of developed softwere system may be divided into 8 major sections: menu and user interface, data file management, preprocessing, enhancement in monochrome image, multi-dimension image analysis, scene classification, image display/hardcopy, image handle utility software. Some additional software such as GIS and DBMS will make this software more comprehensive and generalized one for the satellite data processing.

• Current Optics and Photonics
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• 제3권5호
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• pp.408-414
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• 2019

In this paper we propose a method to generate a true color image in scanning white-light interferometry (SWLI). Previously, a true color image was obtained by using a color camera, or an RGB multichannel light source. Here we focused on acquiring a true color image without any hardware changes in basic SWLI, in which a monochrome camera is utilized. A Fourier transform method was used to obtain the spectral intensity distributions of the light reflected from the sample. RGB filtering was applied to the intensity distributions, to determine RGB values from the spectral intensity. Through color corrections, a true color image was generated from the RGB values. The image generated by the proposed method was verified on the basis of the RGB distance and peak signal-to-noise ratio analysis for its effectiveness.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.988-990
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• 2003

IKONOS image mapping is being considered a possible replacement to the traditional mapping in many countries due to their ease of access to current data and their potential high resolution. Survey Department of His Majesty's Government completed traditional orthophoto mapping of all urban and semi-urban areas of the country. The 1:5000 monochrome orthophoto maps of Kathmandu Valley were completed in 2003. In 2002, as a test, production of a near natural colour Image Map at 1:5000 scale of a part of Kathmandu Valley based on IKONOS data was carried out. A conventional line map plotting of the same area at 1:5000 was also prepared. The objective of the pilot project was to assess the geometric accuracy and the information content of these maps. The details of the study and their results are underlined. The findings of the study helps to explain whether IKONOS image map can replace conventional orthophoto map at 1:5,000 for urban areas of Nepal like Kathmandu.

• 헤리티지:역사와 과학
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• 제54권1호
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• pp.18-31
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• 2021

리놀륨은 실용적이고 위생적이며 친환경적인 바닥재이다. 영국의 월튼(Frederik Walton)에 의해 1863년에 개발된 이것은 코르크와 아마인유, 삼베를 주 재료로 한 유연한 방수 재질로서 20세기 초반 전 세계에서 유행했다. 화학제품인 장판과 달리 뒷면의 삼베 바탕을 한 리놀륨은 병원, 사무실과 같은 상업 공간뿐만 아니라 부엌, 욕실, 심지어 거실과 같은 주거 공간에도 널리 사용되었다. 글로벌한 소재의 하나로서 리놀륨은 20세기 초 국내에도 수입·유통된 정황이 파악되고 우리나라의 덕수궁과 창덕궁 내의 여러 건물에서도 쓰였다. 덕수궁의 경우 1915년에 작성된 『덕수궁원안(德壽宮原案)』에 의하면 함녕전, 덕홍전, 정관헌과 같은 주요 전각을 비롯한 여러 곳에 리놀륨이 사용되었음이 확인된다. 이는 주로 청색과 갈색 무지로서 영국의 제품으로 추정된다. 20세기 초 수출입 자료에 따르면 리놀륨은 영국과 미국을 중심으로 국내에 수입되었다. 창덕궁의 경우 이왕직청사의 건물 평면도에는 곳곳에 리놀륨이 표기되어 있으며 대조전과 희정당 일곽에는 그 원형이 남아 있는 곳도 있다. 대조전과 희정당은 1920년에 개수될 당시 서양식 실내 장식과 근대적 설비를 갖추면서 화장실, 이발소, 서행각과 같은 일부 공간에 리놀륨을 사용했다. 여기에 사용된 것은 검정색 무지, 검정 패턴, 그리고 다색 꽃무늬 타일 패턴으로서 아메리칸 리놀륨 매뉴팩처링 컴퍼니(American Linoleum Manufacturing Company)나 암스트롱 코르크 컴퍼니(Armstrong Cork and Tile Company of Lancaster)와 같은 미국 제품들과 유사성이 크다. 본 연구를 통해 리놀륨의 특성과 사용에 대한 이해를 넓히고 이를 기초로 향후 창덕궁의 복원·재현뿐만 아니라 리놀륨이 사용된 근대 실내 복원의 기초자료로 활용될 수 있기를 바란다.

• Journal of Information Display
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• 제2권3호
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• pp.66-71
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• 2001

MCFEDs (MOSFET-Contoolled Field Emission Displays) were fabricated to evaluate the validity of MCFEA for display application. The electrical properties of FEAs (Field Emitter Arrays), HVMOSFETs (High-Voltage MOSFETs), and MCFEAs (MOSFET-Controlled Field Emitter Arrays) were measured. The extraction gate voltage of the FEAs to obtain the anode current of 10 nA/tip was around 71 V. The breakdown voltages of the HVMOSFETs were above 81 V for all the samples. The I-V characteristics of the MCFEAs showed that the emission currents of the FEAs were well controlled depending on the control gate voltages of the HVMOSFETs. To avoid the harmful effects during the packaging process, the performance of the MCFEDs was evaluated in a high vacuum chamber. The emission images of the MCFEDs were controlled through very-through operation. From the comparison with a conventional FED, it was proven that the poor uniformity of FED could be improved through the integration with HVMOSFET.