• The Journal of Asian Finance, Economics and Business
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• 제6권3호
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• pp.259-268
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• 2019

This study examines the color image of uniform of airline cabin crew according to the demographic characteristics of the customer and demonstrates how it affects the cognitive image of airlines. Adjective adjectives were derived for uniform color images of all eight airlines in Korea and analyzed the image of airline brand color. Based on the analysis of color images, the difference in perception according to the demographic characteristics of passengers was analyzed. When the colors of airline uniforms are mainly blue, sky blue, white and ivory, they have a lot of trust, neat and elegant images. Uniforms with primary colors such as red, orange and green beans are found to have a lot of cheerful, developmental and enterprising images. In addition, the empirical analysis of the impact of the customer's cognitive perception and favoritism on the uniform color image of the airline crew showed that the more positive the airline's positive perception of the uniform color image, the more positive the cognitive image is. In other words, the empirical analysis revealed that the airline's uniform color image, its cognitive image of the airline, and its popularity have significant positive relationships.

• 한국통신학회:학술대회논문집
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• 한국통신학회 2004년도 추계종합학술대회 논문 초록집
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• pp.224-224
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• 2004

• ETRI Journal
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• 제24권5호
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• pp.405-408
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• 2002

In this paper, we discuss recovery schemes for errors occurring when image data encoded with variable length coding (VLC) is transmitted through additive white Gaussian noise (AWGN) and multiple-access interference in direct sequence code division multiple access (DS/CDMA) systems. VLC such as JPEG is so sensitive to channel errors that severe degradation in decoded images occurs even if only one or two bits have errors. This is due to the loss of synchronization at the image decoder. We propose a resynchronization scheme using a power allocation method in wireless DS/CDMA transmission. Through simulation, we know that the proposed method has a more robust resynchronization capability and higher objective and subjective quality than the conventional method.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.699-702
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• 2004

This paper discusses about the mechanism of catching an image through an optical manipulation of each organizations in the eye, more specifically, mechanism of catching an image on a retina through a Camera and a Crystal Lens. In the retina, the macula roles as a fovea contrails and it leads the image which is about 3 mm to be shaped on there. However, even the macula may not properly function, our eyes still can catch the image by shifting the optical path to around of the macula, even if the sensitivity of the image is generally lower than the image on the macula. This paper proposes a method of shifting the shaped image on the retina by refracting the optical path through a prism located on the rear of a screen which consists of a 0.7' TFT LCD. Applying this method that throwing an image around on the macula, central visual disturbance patients among retinitis pimentos patients can expect to recover such a mechanism to catch an image.

• 한국정보처리학회논문지
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• 제7권4호
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• pp.1305-1315
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• 2000

It is known that a digital image enlargement technique can increase the size of he image but the practical enhancement of resolution is trifle because the frequency bandwidth of the original image is basically limited. To solve this problem, this paper proposes the digital image enlargement technique which interpolates the interpolation points of horizontal and vertical direction by weighting according to the direction of edge information with the component of FOI(First Order Interpolation)and output of the pseudomedian filter for image enlargement and interpolates the interpolation points of diagonal direction by selectively transposing the direction of the subwindows of the pseudomedian filter according to the distribution of neighbored pixels thereto in the extended image. According to the proposed methods, the digital image enlargement which preserves the characteristic of the pseudomedian filter capable of keeping the reconstruction of edge information and reflects the advantage of FOI can be performed. Therefore, visual artifacts could be effectively suppressed, and most characteristics and shape of the original image can be reconstructed as well.

• Journal of the Optical Society of Korea
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• 제4권1호
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• pp.48-53
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• 2000

In Optical Scanning Holography(OSH), 3-D holographic information of an object is generated by 2-D active optical scanning. The optical scanning beam can be a time-dependent Gaussian apodized Fresnel zone plate. In this technique, the holographic information manifests itself as an electric signal which can be sent to an electron-beam-addressed spatial light modulator for coherent image reconstruction. In this paper, we briefly review optical scanning holography and analyze the resolution achievable with the system. We also present mathmatical expressions of real and virtual images which are responsible for holographic image reconstruction. We then show the twin-image noise effect on the reconstruction in conjunction with the size of the Fresnel zone pattern through computer simulation.

• 유통과학연구
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• 제15권8호
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• pp.37-46
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• 2017

Purpose - Many studies have shown the effects of the external images of female flight attendants on the customers' satisfaction. Recently, the perception of male flight attendants has become more important and positive, and airlines are hiring a significant number of male flight attendants every year. Due to the lack of research on the male flight attendant, however, the images of male flight attendants were investigated for this study. Research, design, data and methodology - Using survey techniques with 204 respondents, this study used analytical data based their resulting analysis. Results - The study examined whether the image of the male flight attendant affects the cognitive and emotional perceptions of customers. The focus of the present study is the external image of the male flight attendant, and the following image-component divisions were formed: hairstyle, body type, uniform, speech, and facial expression. Conclusions - The study purpose sought to determine whether the image of the male flight attendant exert effects on the emotional and cognitive images of airlines, and if these images have a positive effect on the customers' satisfaction and loyalty for an airline, so that airlines can use the external image of the male flight attendant to help with its own image reinforcement.

• 한국항행학회논문지
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• 제5권1호
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• pp.26-36
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• 2001

시 변환 영상에서 가장 중요한 문제 중의 하나는 자동 목표 추적이다. 본 논문에서는 퍼지 예측을 이용한 이동물체의 위치예측 및 추적 기법을 제안한다. 먼저, 누적 차영상을 이용하여 물체와 배경을 분리한 다음 이동물체를 추출한다. 그리고 추출된 물체에 무게 중심법을 이용하여 물체의 중심점을 추출하고 추출된 물체에 가변 크기 탐색창을 사용하여 추적 성능을 높일 수 있는 기법을 제안한다. 또한 효율적인 물체 추적을 위한 조건으로 비선형적인 예측이 필요한데 본 논문에서는 다음 프레임에서의 물체의 위치를 예측하기 위해 퍼지 예측 방법을 제안한다. 실험을 통해 제안된 퍼지 예측 시스템이 여러 상황하에서 이동물체를 안정적으로 추적함을 보인다.

• 한국항공운항학회지
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• 제15권4호
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• pp.53-63
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• 2007

This paper examines the safety perception of passengers on low cost carriers which has made several accidents and incidents at the early stage of their business. The concept of low cost carrier is becoming more important to airline industry in Korea. This study achieves the first selecting attribute among airline service factors on domestic flights and try to indicate that how much the passengers trust in the safety of low cost carriers. It is also sets the comparative safety awareness between low cost carriers and two full service national carriers in domestic market. The safety perception of aircraft type can be a major factor for LCC choice in Korea due to frequent accidents and incidents for last two years. More than 60% of LCC passengers have increasingly considered the safety after recent accidents. The low cost airlines' images of the passengers showed that the first image of the LCC was the fare and the second image was safety. This study indicates that most of the LCC travelers will use the international low cost airlines when LCC extend their destination to adjacent countries. For the accomplishment of the low cost carriers' competitiveness in domestic market, they have to try to get rid of bad image for safety and pay extra attention to find out better services other than the safety and develop other strategies to compete against existing full service carriers.

• 항공우주시스템공학회지
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• 제18권2호
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• pp.87-94
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• 2024

국제민간항공기구(ICAO)에서는 글로벌항공보안계획(GASeP)을 수립하여 체약국들에게 첨단 보안체계로의 전환을 요구하고 있다. 본 논문에서는 국내외 첨단 항공보안 정책 및 첨단 기술을 식별·조사하고 우리나라에 첨단 보안체계를 구축함에 있어 발생되는 문제점 원인을 분석하였다. 이를 통해, 국내 공항 등급별 효과적인 첨단 보안장비 구축방안을 제시하였으며, 첨단 항공보안체계 도입을 위한 신규 기술기준의 수립 범위를 식별하고 첨단 보안장비를 원활히 운영 할 수 있도록 기술유지 관리를 위한 운영검증 평가 항목을 도출하였다.