• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.02a
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• pp.187-190
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• 2008

디지털 영상기기의 발달과 함께 디지털 영상은 우리의 생활의 일부가 되었다. 이러한 디지털 영상이 생활의 일부가 되면서 범죄자들은 범죄현장의 흔적을 디지털 영상으로 저장하기도 하며, 디지털 영상으로 저장된 CCTV를 통하여 범죄의 현장을 재현하기도 한다[5][6]. 이러한 디지털 영상은 사건을 해결하는데 중요한 역할을 하기에 사건을 수사하는데 있어 수집하여야 할 중요한 대상중의 하나이다. 이러한 디지털 영상은 하나의 분석대상에 다수의 파일로 존재할 수 있으며, 이러한 다수의 디지털 영상 속에서 사건 해결에 도움을 줄 수 있는 중요한 영상을 구분하기 위해서는 많은 시간과 인력이 필요하다. 따라서 다수의 영상 증거물을 디지털 영상 포렌식의 한 분야인 디지털 영상 분류기법을 통하여 수사의 편리함과 정확성을 향상시켜야 할 필요가 있다. 하지만 디지털 영상의 수사를 돕기 위한 디지털 영상의 분류기법은 디지털 영상 포렌식의 영역 중에서 연구가 이루어져 있지 않은 영역중의 하나이며, 연구가 진행되고 있는 방식도 국내가 아닌 국외의 법과 수사 환경을 중심으로 연구되어지고 있다. 따라서 국내의 법과 수사 환경에 적용할 수 있는 디지털 영상 분류기법에 대하여 연구할 필요성이 있다. 이에 대해 본 논문에서는 디지털 영상 포렌식 중 하나의 분야인 디지털 영상 분류기법의 연구현황을 확인하며, 디지털 영상 분류기법의 필요성에 대하여 설명하도록 하겠다.

• Journal of the Korean Society for Library and Information Science
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• v.48 no.2
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• pp.177-199
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• 2014

The purpose of this study is to propose the expansion of headings for digital trends of Korean Decimal Classification. In order to achieve the purpose, this study first analyzed the change process of classification items related to digital resources in DDC and KDC. Second, subject names related to digital in LCSH and Korean National Library Subject Heading were analyzed. Third, comparisons between the items related to digital of DDC 23rd with LCSH and KDC with Korean National Library Subject Heading were conducted. The result of comparative analysis was identified that KDC 6th edition faces with difficulties in reasonable classification because item names related to digital of KDC 6th edition have 11 items. Therefore, the item related to digital has to be expanded to new classification item name and has to add include notes and class here notes in KDC.

• Information Systems Review
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• v.11 no.3
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• pp.107-123
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• 2009

In this paper, we review digital certificate technologies and their applications in e-commerce. Current digital certificate technologies are evaluated and their importance is explained. The configuration of certificate flows from providers to users through software, hardware, and network technologies is described. These five domains and the configuration of digital certificate flows guide our review of the characteristics of digital certificates. We then develop a framework for the classification of digital certificates that integrate these five domains with VeriSign's types and levels of assurance. In order to demonstrate the adequacy of our digital certificate classification framework, we populated it with VeriSign's digital certificates. Within each domain, VeriSign's classes of digital certificates are classified in accordance with the VeriSign type and level of assurance. The results of our analysis suggest that the framework is a useful step in developing a taxonomy of digital certificate technologies. The strengths and weaknesses of the study are discussed, and opportunities for further research are identified and discussed.

• The Journal of the Korea Contents Association
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• v.18 no.1
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• pp.336-344
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• 2018

This research proposes a suitable classification and analysis standard for digital exhibition to analyze digital exhibition. Through the previous studies on digital exhibition classification, the necessity of the new standard is suggested and the analysis standard which can be easily applied to the change of concept and form of the newly emerging digital exhibition is established. Digital exhibition should take into account the elements of audience participation that naturally arise from exhibition planning and interactive storytelling format. Classification and analysis of existing digital exhibition spaces are conceptual classification based on keywords. This is because traditional exhibition methodology has been applied in the process of classifying exhibitions and works. However, in digital exhibitions, the interactive aspect between exhibition space, works, and visitors become so important that it is necessary to perform a performative classification between the works and the audience in the digital exhibition. Accordingly, the way of participating directly or indirectly in the exhibition classification should be considered based on what the audience feel. In this research, the interpretation of the classification and composition of the exhibition is based on Benjamin's argument which the classification of the sensory experience of the audience and 'Aktualisierung' closely related to the interaction with the audience. We also present analysis standard for digital exhibition according to the structure of the art exhibition narrative based on the narrative structure of Chatman. This classification methodology will provide the exhibition information in a way that can be easily understood by the visitors and it will be a precedent research that secures the expansion and accessibility of the digital exhibition.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.646-650
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• 2005

요즘 아날로그 방송에서 디지털 방송시대로 변화함에 따라 디지털 방송기술이 많이 발전되었다. 디지털 방송은 방송국으로부터 만들어지는 영상, 음성, 데이터 스트림들이 MPEG을 통해 효율적으로 압축하고 동기식으로 패킷화되어서 MPEG TS 패킷형식으로 서비스 이용자에게 위성 또는 지상파를 통해 전송되어진다. 방송되어지는 데이터 정보는 물론 그 외의 비관련 데이터도 제공되어짐으로써 서비스 이용범위도 많이 늘어나고 특히 기존의 영상과 음성위주의 방송과는 달리 사업자와 이용자간의 쌍방향으로 데이터를 송수신할 수 있는 기술이 고부가가치 사업으로 대두되고 있다. 디지털 방송을 수신해서 보기 위해서는 튜너로부터 수신되어 디지털화된 MPEG TS 패킷들을 분류해주는 과정이 필요하다. 본 연구에서는 실제 디지털 방송되었던 패킷 파일을 가지고 분류하였다. 영상 스트림과 음성 스트림을 분류하고 데이터 스트림을 분리하였다. 그리고 데이터 방송 규격의 데이터 스트림 파일을 별도로 입력하여 데이터를 분류하였다. 프로그램은 Microsoft visual c++6.0을 사용하여 구현하였다.

• Journal of Information Management
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• v.37 no.3
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• pp.139-163
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• 2006

This article analyze a constructing process of photographic digital archive based on photographs of korean democratization movements. After photographic digital archive defines as integrated systems in which photographic digital objects collect, classify, describe, preserve and access, this article explains metadata elements and classification schema reflecting a special quality of photograph. Especially, this article presents dynamic classification structure using subject keywords. After all, this method provides integrity and interrelationship with photographes which promote usability of photographic digital objects.

• Convergence Security Journal
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• v.18 no.3
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• pp.53-59
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• 2018

In this paper, we propose a hierarchical image classification scheme for efficient object image classification. In the non-hierarchical image classification, which classifies the existing whole images at one time, it showed that objects with relatively similar shapes are not recognized efficiently. Therefore, in this paper, we introduce the image classification method in the hierarchical structure which attempts to classify object images hierarchically. Also, we introduce to the efficient class structure and algorithms considering the scalability that can occur when a deep learning image classification is applied to an actual system. Such a scheme makes it possible to classify images with a higher degree of confidence in object images having relatively similar shapes.

• Journal of the Korean Society for Library and Information Science
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• v.36 no.3
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• pp.181-200
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• 2002

This paper starts by exploring the definition and scope of digital culture contents under digital environments. It then analyzes the classification system of search engines about digital culture contents in terms of subject catagories and the number of web documents. Finally, this study suggests the recommendations for effective retreival and management of digital culture contents.

• Journal of Korea Game Society
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• v.16 no.6
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• pp.19-28
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• 2016

Digital games are generating various types of virtual landscape and the importance of virtual landscape has been arises. However, there has not been any research done how to design the virtual landscape. To establish virtual landscape design methodology, establishing the classification system and suggesting the representative type of virtual landscape is needed. With this research, I collected the classification standard and established five standards; story, cooperation, interaction level, dimensions and shape of the space. With that system, I classified digital game and could prove the effectiveness. Also by classifying cases through 20 years of timeline, I could come out with three representative types. This result will work as a reference to the future research; establishing design methodology on virtual landscape.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2002.11a
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• pp.315-318
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• 2002

본 논문에서는 한국 미국, 유럽, 일본에서 출원된 디지털TV 기술에 관한 특허를 분석하였다. 먼저 디지털TV 기술의 분류는 대분류 4가지, 중분류 15가지, 소분류 40여가지로 하였으며, 조사 대상 특허 수는 IPC, UPC, G7에 1981년부터 2002년 4월까지 게재된 특허를 중심으로 한국 3,462건, 일본 2,358건, 유럽 1,596건, 미국 3,216건을 추출하였다. 이들 특허들에 관해 본 논문에서는 전체적인 특허 동향을 분석하고, 각국마다 대분류 및 중분류에 따른 특허 현황을 분석함으로서 국내에 취약한 기술부분을 도출하였다.