• Korean Journal of Remote Sensing
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• v.8 no.2
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• pp.125-130
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• 1992

Interconnecting remote sensing systems to geographic information systems is valuable in many different applications. Two common techniques for moving data between these two related kinds of spatial data-processing systems were discussed. Digital classification of remote sensing data for use in natural resource inventory has produced mixed results. In attempts to improve classification, accuracy ancillary data, such as digitized maps and terrain(elevation) data, have been combined with remotely sensed data in various ways. These data have been used commonly in (1) preclassification scene stratification and (2) postclassification class sorting. These two approaches are found to be efficient, but lacking in sophistication due to their reliance on deterministic decision rules.

• 한국해양학회지
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• v.22 no.3
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• pp.143-152
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• 1987

The digital data were obtained using Kennedy 9000 magnetic tape deck which was connected to the SMS960 side scan sonar during the field operations. The data of three consecutive survey tracks near Seongsan-po, Cheju were used for the development of this study. The softwares were mainly written in Fortran-77 using VAX 11/780 MINI-COMPUTER (CPU Memory; 4MB). The established mapping system consists of the pretreatment and the digital processing of seafloor image data. The pretreatment was necessary because the raw digital data format of the field magnetic tapes was not compatible to the VAX system. Therefore the raw data were read by the personal computer using the Assembler language and the data format was converted to IBM compatible, and next data were communicated to the VAX system. The digital processing includes geometrical correction for slant range, statistical analysis and cartography of the seafloor image. The sound speed in the water column was assumed 1,500 m/sec for the slant range correction and the moving average method was used for the signal trace smoothing. Histograms and cumulative curves were established for the statistical analysis, that was purposed to classify the backscattering strength from the sea-bottom. The seafloor image was displayed on the color screen of the TEKTRONIX 4113B terminal. According to the brief interpretation of the result image map, rocky and sedimentary bottoms were very well discriminated. Also it was shown that the backscattered acoustic pressurecorrelateswith the grain size and sorting of surface sediments.

• Journal of Digital Convergence
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• v.12 no.4
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• pp.443-454
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• 2014

This study designed to know subjective structure about clinical experience of adaptation of new nursing staffs in a general hospital and using Q-methodology. Using Q-methodology, 40 new nursing staffs sorted working a general hospital through personal interview. The statement positions on the sorting continuum were scored from +4(representing the highest level of agreement) through 0(at the neutral position on the continuum) through to -4(representing the highest level of disagreement). Factor analysis of the data was undertaken using PC QUANL program to determine if any patterns were discernible. The five types extracted all had eigenvalues greater than 1.0 and explained 62.38% of the variation in responses.: (1) New workload type, (2) Interest and responsibility type, (3) Improve the situation type, (4) Lack of knowledge and technology type, and (5) Excessive workload type. The significant differences found in the subjective structure of clinical experience of adaptation of new nursing staffs in ad general hospital. The findings of this study could contribute to the development of an effective programmes of education and personnel clinical practice strategies.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.159-165
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• 2017

In order to solve problems in automatic quality inspection of tablet capsules, computation-efficient image processing technique, appropriate threshold setting, edge detection and segmentation methods are required. And since existing automatic system for quality inspection of tablet capsules is of very high cost, it needs to be reduced through the realization of low-price hardware system. This study suggests a technique that uses low-cost camera module to obtain image and inspects dents on tablet capsules and sorting them by applying TLS curve fitting technique and edge-based image segmentation. In order to assess the performance, the major classifications algorithm of PCA, ICA and SVM are used to evaluate training time, test time and accuracy for capsule image area and curve fitting edge data sets.

• Journal of Digital Convergence
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• v.16 no.2
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• pp.37-45
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• 2018

The purpose of this study is to analyze the cognizance of North Korean refugee by applying Q methodology, as well as to provide preliminary data for improving North Korean refugee's image. The study process let P sample, the study participants, use Q-sorting methodology to sort Q sample, which is composed of statements. 18 participants sorted 32 statements and 3 types of North Korean refugee cognizance were produced as a result. Those types are 1(N=8), 2(N=6), and 3(N=4), which are type favorable, type whereas negative stereotypical, and type neutralist. Favorable types agreed to ensure North Korean refugee groups' rights as a general protection, whereas negative stereotypical types had strong discrimination and prejudice towards North Korean refugee groups due to lack of related knowledge. Furthermore, neutralist types showed an objection to negative stereotypes against North Korean refugee, but they did not entirely agree to North Korean refugee either. It is necessary to develop a detailed strategy to improve the social image of North Korean refugee.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.163-168
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• 2015

This study was done to find a way to resolve a problem in a periodical situation. Recently, the youth unemployment problem became a major factor in social issues. Regarding this issue and employment with high involvement, a new employee's OJT fee acts as a burden. This research will focus on concrete solutions needed to resolve this problem. In terms of content for research, we will firstly analyze representative institutions(NCS) which is responsible for qualifications needed to collect information required to extract major license that carry an easy access to business matters. With a base on this, we will use AHP analysis technique and proposal of research format and extract major license that carry an easy access to business matters. This is considered to be a significant regulation for reducing OJT fee and selecting licenses necessary for getting a job; therefore, the objective of this research is providing a basic structure for sorting licenses with easy access to business matters out and proving grounds for decision in acquiring certifications.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.629-638
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• 2013

The Purpose of this study was to discover type of hope among korean middle-aged adult and to identify the major threads that structure various patterns of hope experienced by them. It is necessary to understand that experiencing hope of middle-aged adult experiencing numerous problems and loss at the transition of life. Q-methodology involves five steps in its approach. Collected Q-statements are 112 from 200 adults through 4 open-ended questions. Among them, 34 statements were decided as a Q-sample, The Q-sorting was carried out in 21 middle-aged adults. Three types of subjective experiences of hope emerged as : (1) Passive Wish Type, (2) Positive Pragmatic Hope Type, (3) Active Internal Value-Oriented Hope Type.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.53-60
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• 2021

The purpose of this study is to examine the terms and components related to the proper use of YouTube. The Delphi was conducted on 11 panels and the results are as follows. First, as a result of examining how the use of YouTube will change in the future, it is agreed that it will be used more actively and more diverse than now, but that maladaptive problems such as fake news and addictive use will occur. Second, the terminology of proper/improper use of Youtube was derived as 'adaptive use' and 'maladaptive use'. Third, as a result of the components of adaptive use of YouTube, it is that were 'Information and content sorting ability', 'Self-regulation ability', 'Information acquisition and delivery ability', 'Understanding motivation and desire to use', 'Time-of-use control ability', 'Consideration of ripple effect'. Finally, the implications and limitations of this study were discussed.

• Journal of the Korea Convergence Society
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• v.12 no.10
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• pp.189-201
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• 2021

The art of dynamic images has experienced three development stages, including experimental films, recording art, and new media image. By introducing all kinds of new materials, new media to the art, and the art of dynamic images has created more freedom for art creation. With the development of digital information technology, dynamic image works have put forward an increasingly high requirement of visual art. The combination of dynamic images and visual illusion can give rise to different forms and expression methods, thus endowing artworks with more vigor. This paper provides an overview by sorting out the lineage and development of dynamic images in the background, as well as understanding the application and performance of contrasted visual illusion. Based on the understanding of the characteristics of visual illusion, we discuss the new characteristics of applying the theory of visual illusion to new media dynamic images in relation to the technical approach of dynamic images. Through the analysis of specific works of Telematic Vision, we search for its reasonable combination and find the appropriate technical means of implementation. We discuss how to use digital multimedia technology and spatial optical illusion to make the design more novel and impactful, and consider how the combination of digital dynamic image technology and visual illusion should be interpreted and applied.

• Journal of Broadcast Engineering
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• v.15 no.3
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• pp.368-379
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• 2010

As high-definition video is broadly used in various system such as broadcast system and digital camcorder the proper method in order to improve the quality of high-definition video is needed. In this paper, we propose an efficient method to improve color and contrast of high-definition video. In order to apply the image enhancement method to high-definition video, scale-down video of high-definition video is used and the parameter for image enhancement method is computed from small size video. To enhance the color of high-definition video, we apply color constancy method. First, we separate the video into several scenes by cut detection method. Then, we apply color constancy to each scene with same parameter. To improve the contrast of high-definition video, we use union of original image and histogram equalized image, and weight is calculated based on sorting of histogram bins. Finally, the performance of proposed method is demonstrated in experiment section.