• Defense and Technology
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• no.7 s.137
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• pp.68-75
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• 1990

지난 수년간 외국의 병기와 군사장비에 대한 시험 및 평가를 포함한 미 국방부의 2가지 프로그램은 국방관계 잡지와 신문등 매스컴의 주목을 받아왔다. 어느 나라의 방산업체에 조달을 맡길 것인가의 문제, 조달을 수행할 나라들이 제출한 계획의 수치, 그리고 미군의 타개책등이 국방성 관계자들에 의해 검토되어 왔으며, 해외로부터 방위장비를 구입할때 미국 방산업체에 미치는 영향등에 대해 면밀한 조사와 평가가 이루어져 왔다. 미 국방부의 이러한 노력은 외국산 병기평가(FWE)계획과 나토 장비류 비교시험(NCT) 계획으로, 뚜렷이 나타나고 있다. 이글은 FWE와 NCT에 대한 미 국방부의 시각을 밝히고, 이 두 프로그램에서 미 국방부가 조달 후 후보업체를 지명하는 방법에 대해 서술된 것으로, 외국 방산업체들에게 좋은 자료가 될 것으로 사료된다.

• KIPS Transactions on Software and Data Engineering
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• v.3 no.9
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• pp.375-380
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• 2014

Under controlled environment, such as fixed viewpoints or consistent illumination, the performance of face recognition is usually high enough to be acceptable nowadays. Face recognition is, however, a still challenging task in real world. SIFT(Scale Invariant Feature Transformation) algorithm is scale and rotation invariant, which is powerful only in the case of small viewpoint changes. However, it often fails when viewpoint of faces changes in wide range. In this paper, we use Affine SIFT (Scale Invariant Feature Transformation; ASIFT) to detect affine invariant local descriptors for face recognition under wide viewpoint changes. The ASIFT is an extension of SIFT algorithm to solve this weakness. In our scheme, ASIFT is applied only to gallery face, while SIFT algorithm is applied to probe face. ASIFT generates a series of different viewpoints using affine transformation. Therefore, the ASIFT allows viewpoint differences between gallery face and probe face. Experiment results showed our framework achieved higher recognition accuracy than the original SIFT algorithm on FERET database.

• Design Convergence Study
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• v.15 no.2
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• pp.347-368
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• 2016

Recently, researches for the word of mouth(WOM) imply that consumers use WOM informations of products in their purchase process. This study suggests methods using opinion mining and visualization to understand consumers' opinion of each goods and each markets. For this study we conduct research that includes developing domain ontology based on reviews confined to "movie" category because people who want to have watching movie refer other's movie reviews recently, and it is analyzed by opinion mining and visualization. It has differences comparing other researches as conducting attribution classification of evaluation factors and comprising verbal dictionary about evaluation factors when we conduct ontology process for analyzing. We want to prove through the result if research method will be valid. Results derived from this study can be largely divided into three. First, This research explains methods of developing domain ontology using keyword extraction and topic modeling. Second, We visualize reviews of each movie to understand overall audiences' opinion about specific movies. Third, We find clusters that consist of products which evaluated similar assessments in accordance with the evaluation results for the product. Case study of this research largely shows three clusters containing 130 movies that are used according to audiences'opinion.

• The Journal of the Korea Contents Association
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• v.12 no.5
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• pp.52-61
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• 2012

Text visualization is one of sectors in data visualization. This study is on methods to visually represent text's contents, structure, and form aspects based on various analytic techniques about wide range of text data. In this study -as a text visualization study-, 1) a method to find out the characteristics of a book's genre using words in the text of the book was looked into, 2) elements of visualization of a book's genre based on verification through an experiment were drew, and 3) the ways to intuitionally and efficiently visualize this were explained. According to visualization suggested by this study, first, actual genre of a book can be understood based on words used in the book. Second, with which genre is closed to the book can be found out with one glance through images of visualization. Moreover, the characteristics of complicated genres included in a book can be understood. Furthermore, the level of closeness (similarity) of a genre -which is found to be a representative genre using the number of dots, curvature of a curve, and brightness in the image- can be assumed. Finally, the outcome of this study can be used for a variety of fields including book customizing service such as a book recommendation system that provides images of personal preference books or genres through application of books favored by individual customers.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.403-408
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• 2013

The configuration analysis for the image appeared in the storyboard as the 1st stage to change the scenario to the image expressed the visual phenomenon image starting from the literalism. The simultaneity of description on the interpretative level of the narrative description may describe various information multiple simultaneously, the relationship has been presented as a lot of these information has been weaved as one episode. The incident time of narrative description as the scene described mainly objectively and illustratively has been used usefully to present the accurate information for characters or incidents. The time series of narrative description appeared as one episode by expressing various spaces or images under the continuity of flow according to the time. The collision image seen from the angle of internal ignition played a role to create the meaning colliding into each other or interconnecting symbolic effects appeared as respectively fragmented image, the continuity of space played a role of expressing the different symbol when the image of completely different space is connected to one context, the continuity of time as well makes a different symbolism by interpreting symbols appeared as each images under the flow of time. These results show that the narrative description may be expressed in accordance with the narrative structure from the viewpoints of narrative description, but the internal ignition may be interpreted through the cultural and periodical background widely known in those years based on the experience and information capability the audiences are keeping not by any descriptive structure. Images appeared in the internal ignition appeared by colliding into each other or amplifying mutually no related scenes and revealing the overall symbolism by reinterpreting again.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2003.11a
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• pp.267-270
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• 2003

본 논문은 DVB-MHP 규약을 따르는 동기화 된 데이터 방송 애플리케이션을 제작하기 위한 스트림 생성기의 구현을 기술한다. 동기화 된 애플리케이션은 비디오와 공유된 시간기준을 가지며 특정시각에 발생한 이벤트(스케쥴드 스트림 이벤트)를 처리할 수 있는 애플리케이션이다. 동기화 된 애플리케이션을 위해서 스트림 생성기는 다음 작업을 수행한다. (1) NPT(Normal Play Time)를 수신기로 보내기 위해 NPT 참조서술자를 전송 스트림 내에 MPEG2 섹션으로 포장하여 넣는다. (2) 스케쥴드 스트림 이벤트들을 생성하여 전송 스트림내의 적당한 위치에 MPEG2 섹션으로 포장하여 넣는다. (3) 애플리케이션 프로그램과 스트림 이벤트에 대한 참조(reference)를 포함하는 객체 카로셀을 생성한다. DVB-J 애플리케이션은 DVB-MHP API중에 섹션필터 관련 API를 이용하여 전송된 NPT 참조 서술자를 읽어들이고 이로부터 NPT를 재구성하며, 스트림 이벤트 관련 API를 이용하여 스트림 이벤트를 처리하도록 구현한다 스트림 생성기가 생성한 MPEG2 전송 스트림으로 Interactive Game Show 애플리케이션을 제작하여 비디오와 애플리케이션이 사용하는 이미지 디스플레이간의 동기화를 테스트하였다.

• Journal of Platform Technology
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• v.8 no.1
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• pp.33-40
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• 2020

The purpose of this study is to identify factors in selecting the elective ICT utilization lecture and to find positive and negative elements of the lecture through conducting topic modeling analysis of text mining of the narrative lecture evaluation. In order to do so, from pre-processing of data, keyword frequency analysis to wordcloud visualization and topic modeling analysis have been conducted from 'reasons of selecting the lecture,' 'improvements to be made on the lecture,' and 'what I liked about the lecture' categories regarding the ICT utilization lecture which was opened in the second semester of 2019 at M University. The analysis results show that students mostly registered for the ICT utilization lecture at M University to obtain a certificate and the fact being certified and taking the lecture can be done simultaneously is a positive element of taking the lecture. On the other hand, negative element included inconvenience of the classroom setting environment.

• Trans-
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• v.14
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• pp.93-122
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• 2023

Children's films can be found by country and region within the scope of world films, but children's films have different definitions depending on the country and region. For example, American children's films represented by Disney are mainly aimed at satisfying the joys of children and families.Chinese children's films place more importance on the educational role of children. Although the purpose is different, children's films in the general sense are films that main audiences are children and are created for children. Children's films in Iran differ greatly from ordinary children's films. It indirectly expresses the creator's intention by reflecting reality while looking at the adult world through the eyes of children. This special function is a children's visual language that indirectly conveys the creator's thoughts. The use of children's perspective is a kind of special strategy, paving the way for Iranian films to survive in a special creative environment, and creating unique characteristics of Iranian films. Among the numerous Iranian directors who make children's films, Majid Majidi is one of the representative directors with personal characteristics. Of his nine Iranian films written and directed, five are children's films.At the same time, in his other Iranian films, we can more or less see the traces of children and children's perspective of the narrative and performance.Looking at the use of children's vision in Iranian films, the use of children's vision in Iranian films began with children's films and developed in Iranian children's films and other genres of Iranian films.

• Journal of Broadcast Engineering
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• v.27 no.3
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• pp.295-307
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• 2022

In this paper, we propose a novel compression method for scalable Fisher vectors (SCFV) which is used as a global visual feature description of individual video frames in MPEG CDVA standard. CDVA standard has adopted a temporal descriptor redundancy removal technique that takes advantage of the correlation between global feature descriptors for adjacent keyframes. However, due to the variable length property of SCFV, the temporal redundancy removal scheme often results in inferior compression efficiency. It is even worse than the case when the SCFVs are not compressed at all. To enhance the compression efficiency, we propose an asymmetric SCFV difference computation method and a SCFV reconstruction method. Experiments on the FIVR dataset show that the proposed method significantly improves the compression efficiency compared to the original CDVA Experimental Model implementation.

• Journal of Korea Entertainment Industry Association
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• v.13 no.4
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• pp.83-91
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• 2019

Gameplay exists not only in game activities, but also in other art forms. An animated film with strong gameplay whose gameplay narrative follows the presupposition principle, achieved through unimaginable sound effects, exaggerated visual styling, hypothetical time and space concepts, fictional storylines and character performances. The strength or the presence or absence of gameplay in animated films is reflected in the grasp and use of these gameplay elements in the process of animated film narratives. The gameplay narrative of animated films fully utilizes the characteristics of gameplay thinking. In the process of scriptwriting and narrative, it combines entertainment, action, adventure, competition and other elements to fully reflect the characteristics of "gameplay". Gameplay narratives often use the strategies of reverse setting, repetition and interaction, and rules and challenges setting, which not only enhances the fun of animated film narratives, but also attracts the attention of the audience, which then can enhance the audience's viewing experience.