• 한국정보통신학회논문지
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• 제13권1호
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• pp.29-36
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• 2009

본 논문은 모바일 폰 카메라의 적용을 위한 자동노출 (AE, Auto Exposure)기능의 알고리즘 및 하드웨어 설계에 관한 것이다. 자동노출기능은 카메라로 촬영하기 위한 피사체의 밝기를 적절하게 하기 위해 자동으로 노출을 조정해 주는 기능이며 기존의 자동노출 기능은 마이크로 컨트롤러(MCU)에 의해 수행됨으로써 고비용과 느린동작속도 등의 문제점이 있었다. 본 논문에서는 마이크로 컨트롤러를 사용하지 않고 하드웨어로 구현 가능한 자동노출 기능의 알고리즘을 개발함으로써 시스템의 제작비용 및 동작 속도 등 기존 시스템에 대한 단점을 개선할 수 있도록 하였다. 하드웨어 자원사용의 효율성을 고려하여 알고리즘을 제안하였으며 제안된 알고리즘의 하드웨어 설계와 설계된 시스템을 실제 모바일 폰 카메라 센서에 적용하여 테스트함으로써 개발된 자동노출 기능을 확인하였다.

• The Journal of Asian Finance, Economics and Business
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• 제8권2호
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• pp.1269-1275
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• 2021

The phenomenon of money laundering through capital market instruments and various investment instruments in it is a challenge for law enforcement officials, particularly the Corruption Eradication Commission (KPK) in investigating money laundering crimes originating from corruption. This study aims to analyze comprehensively about: (1) implementation of policies on prevention and eradication of money laundering at the KPK in the context of handling money laundering on the capital market; and (2) an effective model for implementing policies to prevent and eradicate money laundering in the KPK in the context of handling money laundering on the capital market. By using a qualitative approach and Interactive Model analysis from Miles and Huberman, it was concluded that the results of the implementation of the policy of preventing and eradicating money laundering at the Corruption Eradication Commission in the context of handling money laundering crimes in the capital market had a positive impact on society, individuals and groups. The theoretical implications of the results of this study are related to the content of policy that is still relevant but for the context of implementation it needs to be refined or reconstructed by adding three elements, namely: communication, monitoring, and evaluation and security.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2003년도 춘계종합학술대회논문집
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• pp.356-360
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• 2003

다양한 종류의 컨텐츠 데이터베이스를 구축하고, 이를 인터넷 서비스로 제공하는 인터넷 포탈 서비스 응용이나 전자상거래 등에서 기존에 구축되어 있는 여러 형태의 컨텐츠 데이터베이스들을 통합하여 새로운 컨텐츠 서비스를 제공하기 위한 많은 노력들이 수행되고 있다. 이는 사용자가 활용하려는 컨텐츠가 어떤 데이터베이스 또는 어느 인터넷 서비스 응용에서 제공되는지를 파악해야 하는 사용자의 부담을 줄이고, 다수의 컨텐츠 데이터베이스들을 사용자에게 단일한 뷰(view)를 제공하므로서 사용자 이용 편의성을 높일 수 있다. 본 논문에서는 다양한 컨텐츠 데이터베이스들이 인터넷에 분산되어 있을 뿐만 아니라 서로 상이한 데이터베이스 시스템들(즉, 관계형 DB/객체형 DB)에서 관리되는 환경에서 XML자료 모델을 기반으로 통합된 하나의 가상 데이터베이스를 구축하고 검색하는 통합 검색 시스템의 핵심 요소인 질의 처리 시스템을 설계 및 구현한다.

• 한국멀티미디어학회논문지
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• 제6권4호
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• pp.676-684
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• 2003

eLearning can be defined as an approach to teaching and teaming that utilises Internet technologies to communicate and collaborate in an educational context. This includes technology that supplements traditional classroom training with web-based components and learning environments where the educational process is experienced online. The use of hypertext as an educational tool has a very rich history. The advent of the internet and one of its major application, the world wide web (WWW), has given a tremendous boost to the theory and practice of hypermedia systems for educational purposes. However, the web suffers from an inability to satisfy the heterogeneous needs of a large number of users. For example, web-based courses present the same static teaming material to students with widely differing knowledge of the subject. Adaptive hypermedia techniques can be used to improve the adaptability of eLearning. In this paper we report an approach to the design a unified implementation framework suitable for web-based eLearning that accommodates the three main dimensions of hypermedia adaptation: content, navigation, and presentation. The framework externalises the adaptation strategies using XML notation. The separation of the adaptation strategies from the source code of the eLearning software enables a system using the framework to quickly implement a variety of adaptation strategies. This work is a part of our more general ongoing work on the design of a framework for adaptive content delivery. parts of the framework discussed in this paper have been imulemented in a commercial eLearning engine.

• 한국과학교육학회지
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• 제21권5호
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• pp.867-892
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• 2001

In both Korea and the U.S., science education leaders and specialists insist that there is a shortage of curricula to address the new national science education guidelines in support of reform. This paper addresses development of new curricula for science education reform in the hopes of facilitating further development of guideline-based curricula. We examine Korean and U.S. thematic-based (Korean Science Field Trip at Cultural Sites Program and U.S. Graduate Teaching Fellows in K-12 Education) and project-centered (Korean Teachers for Exciting Science and U.S. Foundational Approaches in Science Teaching Program) programs. Using the criteria of rationale for curriculum, content and scope, processes of implementation, and assessment strategies, we identify the curricular components that are common across four successful secondary science programs and determine which of these components address the national guidelines. Our findings indicate that common components of these four programs meet the expectations of the science guidelines being used to revamp science education in both countries. Therefore, these programs not only engage secondary students and teachers in practicing successful science education, but also lead to successful science education practices that can be incorporated in the future development of curriculum to support secondary science reform.

• 한국통신학회논문지
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• 제16권12호
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• pp.1313-1323
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• 1991

본 논문에서는 객체 지향 프로그래밍을 이용한CAM(Content Addressable Memory)의 자동생성의 runplot 과정을 위한 생성기, 그래픽 디스플레이 툴(tool)을 제시하였다. 레이아웃 생성이나 그래픽 메뉴, 마우스 드라이버, 데이터 구조들을 기본 클래스들로 구성하여 기존의 절차적 언어보다 명료하고도 수정이 용이한 프로그램을 구성하였음을 보였다. CAM의 구조와 기본 회로 구성을 보였고 이들을 생성 하기위한 기본 클래스에 대해 설명하였다. 설계 규칙이나 공정에 독립적인 생성기 설계를 위해 기본 셀들을 사용자의 입력에 따라 변하도록 구성할 수 있는 매개변수화된 셀의 기법을 보였고 피치 매칭 기법을 이용한 배치·배선으로 레이아웃을 수행하였다. 끝으로 생성된 CIF의 디스플레이와 전체 run plot 과정을 위한 그래픽 메뉴의 구성을 설명하였다.

• 대한가정학회지
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• 제46권1호
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• pp.1-14
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• 2008

The purpose of this study was to develop and implement web-based parental education programs applicable for the parents of young children in Korea. The results of this study were as follows. First, the parents of the young children recognized the importance of parental education, but were unable to participate in face-to-face parental education programs. However, they welcomed the possibility of participating in web-based parental education programs. Second, to develop web-based parental education programs, the parents' needs should be assessed and preliminary content analysis based on the previous works and subject specialists' opinions should be conducted. In addition, results of research about web-based education programs in various fields, especially about teaching-learning methods in web-based education for adult learners, should be considered in the process of developing web-based programs for the parents of young children. Third, various types of needs and demands should be assessed during the step-by-step program application periods and at the end of the program implementation. Finally, the parents who participated and assessed the web-based parental education program in this study were generally satisfied with the content and teaching-learning methods.

• 디지털융복합연구
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• 제19권4호
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• pp.133-139
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• 2021

네트워크 기술의 비약적인 발전으로 모바일 디지털 콘텐츠 분야에서도 콘텐츠 보안 기술에 관한 연구가 활발히 이루어지고 있다. 그동안 콘텐츠 보호는 불법 복제 방지, 인증 그리고 인증서 발급/관리 등에 한정되었지만, 여전히 비밀정보 공개나 인증의 측면에서 많은 취약점이 존재한다. 본 연구는 휴대전화 번호 또는 단말기 번호를 통한 콘텐츠 다운로드 권한의 이중 관리를 기반으로 콘텐츠에 대한 비밀정보를 강화하고자 한다. 또한 3단계 사용자 인증 프로세스를 바탕으로 디지털 콘텐츠가 안전하게 배포되도록 강인한 모바일 DRM(Digital Right Management) 시스템을 구축하여 재전송 공격을 방지하고자 한다. 그리고 불법 복제 차단 및 저작권 보호를 위하여 사용자 인증을 기반으로 1차/2차 프로세스 과정에서 블록체인 기반 콘텐츠 보안 강화에 대해 연구하였다. 또한 정상적인 사용자가 제3자에게 본인 소유의 콘텐츠를 재분배하여 비정상적으로 콘텐츠를 사용할 때에도 이를 위해 3단계에 걸친 최종적인 권한 발급을 통해 Client 인증 과정을 더욱 향상시켰다.

• ETRI Journal
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• 제30권1호
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• pp.101-112
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• 2008

In this paper, we present a method to customize the ground color in outdoor sports video to provide TV viewers with a better viewing experience or subjective satisfaction. This issue, related to content personalization, is becoming critical with the advent of mobile TV and interactive TV. In outdoor sports video, such as soccer video, it is sometimes observed that the ground color is not satisfactory to viewers. In this work, the proposed algorithm is focused on customizing the ground color to deliver a better viewing experience for viewers. The algorithm comprises three modules: ground detection, shot classification, and ground color customization. We customize the ground color by considering the difference between ground colors from both input video and the target ground patch. Experimental results show that the proposed scheme offers useful tools to provide a more comfortable viewing experience and that it is amenable to real-time performance, even in a software-based implementation.

• 한국전자거래학회지
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• 제7권3호
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• pp.21-48
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• 2002

ebXML is the international technical framework specification that enables Internet-based B2B electronic business using XML, It was standardized by UN/CEFACT and OASIS on May 2001. Registry and Repository is the core of ebXML. It supports registry services which is composed of object management service and object query management service. The object management service manages the object's life cycle and the object query management service provides a mechanism to approach metadata of stored objects. Up to now, implementations of ebXML Registry object query management system don't support full functions of the specification completely. We implemented all the functions of ebXML Registry Service Specification vl.0. This system supports Browse ＆ Drilldown Query, Filter Query, SQL Query, and Object Retrieval Query services. And it also supports Content-based Query service which is not specified in the ebXML RS specification. The Content-based Query service is a repository service which makes it possible In pose content based queries of repository items and which will be specified on the RS specification v2.0.