• 한국콘텐츠학회논문지
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• 제11권6호
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• pp.472-485
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• 2011

본 연구는 소비자의 가치지각 측면별 이미지 차별화를 각 세분시장에 따라 검토함으로써 여행시장 전반의 경쟁력 제고 및 커뮤니케이션 전략의 효율성을 개선하는데 목적을 두고 있다. 계절적인 목적지 특성에 따라 우리나라 해외신혼여행객이 해외신혼여행목적지를 선택할 때 어떻게 차이가 있는지를 분석하고자 하였다. 본 논문에서는 다차원 척도법을 적용하여 7개의 여행지(괌/사이판, 호주/뉴질랜드, 중국, 일본, 하와이, 태국, 유럽)를 중심으로 여행을 경험하였거나 신혼여행을 계획하고 있는 사람들을 대상으로 하였으며, 분석결과 목적지별로 계절에 따라 지각도의 위치가 달라지는 것을 확인하였다. 본 논문의 공간상에 지각측면을 시각화한 연구 결과를 통해 해외신혼 여행지 시장전반에 걸친 경쟁력 제고 및 목적지별 다양한 전략적 시사점은 여행기업 내의 가능한 대체전략을 수립하는 기초자료를 제공할 수 있을 것이다.

• Journal of Information Processing Systems
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• 제11권4호
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• pp.601-615
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• 2015

Region of interest (ROI) is the most informative part of a medical image and mostly has been used as a major part of watermark. Various shapes ROIs selection have been reported in region-based watermarking techniques. In region-based watermarking schemes an image region of non-interest (RONI) is the second important part of the image and is used mostly for watermark encapsulation. In online healthcare systems the ROI wrong selection by missing some important portions of the image to be part of ROI can create problem at the destination. This paper discusses the complete medical image availability in original at destination using the whole image as a watermark for authentication, tamper localization and lossless recovery (WITALLOR). The WITALLOR watermarking scheme ensures the complete image security without of ROI selection at the source point as compared to the other region-based watermarking techniques. The complete image is compressed using the Lempel-Ziv-Welch (LZW) lossless compression technique to get the watermark in reduced number of bits. Bits reduction occurs to a number that can be completely encapsulated into image. The watermark is randomly encapsulated at the least significant bits (LSBs) of the image without caring of the ROI and RONI to keep the image perceptual degradation negligible. After communication, the watermark is retrieved, decompressed and used for authentication of the whole image, tamper detection, localization and lossless recovery. WITALLOR scheme is capable of any number of tampers detection and recovery at any part of the image. The complete authentic image gives the opportunity to conduct an image based analysis of medical problem without restriction to a fixed ROI.

• The Journal of Asian Finance, Economics and Business
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• 제7권4호
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• pp.247-258
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• 2020

The study investigates the influences of different factors on revisit intention to Korea of Vietnamese tourists. A mixed-method including qualitative and quantitative methodologies were utilized. A focus group of 9 experts was carried out for reviewing and exploring different factors and the conceptual model. An in-depth interview with 19 participants was developed with an aim to develop and correct measurement items. The conceptual model was tested and developed using data collected by a questionnaire, from a sample of 473 respondents, who have visited Korea by both electronic and paper surveys with non-probability and convenience sampling techniques. The questionnaire in this research applied a 5-point Likert scale and was distributed both electronically using Google form and by questionnaire paper. The Bootstrap model was used for estimating the model parameters for retesting the reliability of the estimates. Factor analysis and Structural Equation Modelling are employed to analyze the data. Results showed that 427 tourists traveling by groups organized by travel companies and 46 tourists traveling on their own. The reliability, tangibility, empathy, and assurance had influences on tourists' intention to revisit a destination, especially through satisfaction mediating construct. Destination image, self-congruity, and the emergence of Hallyu had influences intension revisit through attitude and tourist motivation.

• 전자공학회논문지B
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• 제30B권8호
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• pp.8-15
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• 1993

This paper describes a normalization of character which is contained in the character recognition process. Line and dot density is computed on input character image and then image mapping is executed into destination. Also recognition is processed using overlap-partitioning of character image and extraction of 4 directional feature primitives. The validity of proposed nonlinear normalization algorithm could be verified by increment of recognition rate.

• 한국경제지리학회지
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• 제14권1호
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• pp.19-32
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• 2011

본 연구는 회의 및 전시 기획가 관점에서 중요도-성취도 분석에 의한 국내 컨벤션 개최지의 이미지를 평가하였다. 회의 및 전시 기획가는 '회의장 시설, '호텔 서비스 질, 안전과 보안 시설, 공항 이용의 접근성 및 호텔객실 수용성'을 컨벤션 개최지의 선택에서 가장 중요한 선택속성들로 평가하였다. 다른 한편으로는 야간활동, 전시시설, 경관 및 관광 기회, 숙식비용 및 레스토랑 시설 등은 컨벤션 개최지 선택에서 대체적으로 중요하지 않은 선택속성들로 나타났다. 한편 회의 및 전시 기획가의 관점에서의 컨벤션 개최지 선택속성에 대한 중요도 순위의 평가 결과에서 동일한 것으로 평가되었다. 국내 9개 컨벤션 개최지 이미지를 회의 및 전시 기획가 대상으로 한 IP분석 결과 2006년과 2010년 사이에 순위의 변화가 있었던 것으로 평가되었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2918-2920
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• 2000

A new multi-planar interpolation technique for three dimensional medical image rendering is proposed. In medical imaging. resolution in the slice direction is usually much lower than those in the transverse planes. The proposed method is based on the solution of the Laplace's equation used in the electrostatics. In this approach. two contours in the source and destination planes for a given object is assumed to have equi-potentials. Some preprocessing and post-processing including scaling. displacement. rotation from the centers of mass are involved in the algorithm. The interpolation solution assumes mostly smoothing changes in between the source and destination planes. Simultaneous multiple interpolation planes are inherently obtained in the proposed method. Some experimental and simulation results are shown.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권10호
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• pp.2663-2678
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• 2012

Due to sharp depth transition, big holes may be found in the novel view that is synthesized by depth-image-based rendering (DIBR). A hole-filling method based on disparity map is proposed. One important aspect of the method is that the disparity map of destination image is used for hole-filling, instead of the depth image of reference image. Firstly, the big hole detection based on disparity map is conducted, and the start point and the end point of the hole are recorded. Then foreground pixels and background pixels are distinguished for hole-dilating according to disparity map, so that areas with matching errors can be determined and eliminated. In addition, parallaxes of pixels in the area with holes and matching errors are changed to new values. Finally, holes are filled with background pixels from reference image according to these new parallaxes. Experimental results show that the quality of the new view after hole-filling is quite well; and geometric distortions are avoided in destination image, in contrast to the virtual view generated by depth-smoothing methods and image inpainting methods. Moreover, this method is easy for hardware implementation.

• 한국정보과학회논문지:소프트웨어및응용
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• 제31권1호
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• pp.8-19
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• 2004

본 논문에서는 우리나라 우편영상에서 수취인 주소 영역을 추출하는 방법을 제안한다. 우편영상에 기입된 주소가 프린터나 타자기 둥에 의해서 인쇄된 주소일 수도 있고 사람에 의해서 필기된 주소일수도 있다. 즉, 인쇄체 우편영상과 필기체 우편영상 모두에 적용될 수 있는 수취인 주소 영역 추출 방법을 제안한다. 제안 방법에서는 이진화 된 우편영상으로부터 연결요소를 추출하고 연결요소를 결합하여 문자열을 생성한다. 그 후 문자열을 군집화하고 생성된 군집 중 몇 개의 군집을 선택함으로써 수취인 주소 영역을 결정한다. 우리나라 우편봉투에 기입되는 정보의 유형별 기입 위치 패턴에 따라 우편영상을 총 9개의 균등 영역으로 분할한 후 각 영역의 중심을 초기 값으로 갖는 9개의 군집을 생성하였고 k-Means 방법을 사용하여 군집화를 수행하였다. 군집화 과정에서 사용되는 거리함수로 우편영상의 폭 대 높이의 비율이 반영된 수정된 맨하탄 거리를 사용하였다. 제안 방법의 성능을 알아보기 위하여 실제 우편물 영상 1,988개를 사용하여 실험한 결과 약 93.56%의 우편영상에서 수취인 주소 영역을 정확하게 추출할 수 있었다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -1
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• pp.192-195
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• 2002

About 90% of Thai-style addresses have similar features; e.g. the beginning of each address line is diagonal. In this paper, we propose a method for locating destination address block (DAB) on Thai envelopes based on features of Thai-style addresses. Firstly, we decompose image into smaller blocks and remove all blocks not meeting criteria. Secondly, we search for the DAB candidates. Lastly, heuristic rules and typical features are applied to identify the destination address block. Experimental results using 2,700 envelopes of handwritten and machine printed Thai envelopes show a successful address extraction rate of 91%.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1993년도 하계학술대회 논문집 A
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• pp.387-390
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• 1993

The most important technique for an indoor robot navigation is to find out the direction and the distance from the current location to the destination through the information achieved from the sensor. For this purpose, we suggest sensor-based local homing method which compares the destination sensory data with the current location. As for the sensors, we use the CCD camera and the ultrasonic sensor, and recorded entire 360 degree panoramic data. We match the features of the image data, and the distance and the direction of the matched point will be considered as fuzzy numbers. Through a simple fuzzy arithmetic, we infer the geometric relations between the current location and the destination location.