• 디지털산업정보학회논문지
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• 제7권3호
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• pp.75-83
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• 2011

Cognitive radio (CR) technology is to maximize the spectrum utilization by allocating the unused spectrums to the unlicensed users. This technology enables the sharing of channels among secondary (unlicensed) and primary (licensed) users on a non-interference basis after sensing the vacant channel and as a result, it is possible to harness wireless frequency more efficiently. To enhance the accuracy of sensing, RDSS was suggested. It is a fusion mechanism based on the reputation of sensing nodes and WSPRT (weighted sequential probability ratio test). However, in RDSS, the execution number of WSPRT could increase according to the order of inputted sensing values, and the fast defense against the forged values is difficult. In this paper, we propose a transaction signing-based authentication scheme for secure distributed spectrum sensing to response the forged values. The validity of proposed scheme is provided by BAN logic.

• 전자공학회논문지B
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• 제33B권10호
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• pp.50-62
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• 1996

A parallel looking stereo camera was mainly used as an input sensor for digital image processing, image understanding and the extraction of 3 dimensional information. Theoretical analysis and performance evaluation are dealt in this paper for a convergent looking stereo camera model having a fixation point with the result of crossing optical axes. The quantization error, depth resolution and equidepth map due to digital pixels, and the misalignments effects of pan, tilt and roll angles are analyzed by using rhe relationship between the reference and image coordinate systems. Also horopter, epipolar lines, probability density functions of the depth error, and stereo fusion areas for the two camera models are discussed.

• Journal of Power Electronics
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• 제8권2호
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• pp.163-170
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• 2008

A BIPV(Building Integrated PV) system is united by a constituent outer covering and can expect dual effects that reduce expenses for the establishment of a PV system. It is a profitable technology because it does not need a building as it is a stand alone PV system. In this paper, output characteristics analysis of PCS and web-based monitoring of 10kW BIPV, were stimulated and examined for validity. The BIPV system proposed in this paper was established in at BIC (Biotechnology Industrialization Center) of Dongshin University, which was composed with PCS and Web-monitoring system.

• 대한기계학회논문집A
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• 제20권4호
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• pp.1309-1319
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• 1996

The research for the classification of the natural defects in welding zone is performd using the neuro-pattern recognition technology. The signal pattern recognition package including the user's defined function is developed to perform the digital signal processing, feature extraction, feature selection and classifier selection, The neural network classifier and the statistical classifiers such as the linear discriminant function classifier and the empirical Bayesian calssifier are compared and discussed. The neuro-pattern recognition technique is applied to the classificaiton of such natural defects as root crack, incomplete penetration, lack of fusion, slag inclusion, porosity, etc. If appropriately learned, the neural network classifier is concluded to be better than the statistical classifiers in the classification of the natural welding defects.

• 전자통신동향분석
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• 제38권4호
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• pp.70-80
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• 2023

In recent years, our society has shifted from an information society to an intelligent information society, in which computing has become a key factor in shaping and driving social development. In this new era of digital civilization powered by the Internet of Things, traditional data-based computing is no longer sufficient to meet the growing demand for higher levels of intelligence. Therefore, intelligent computing has emerged, reshaping traditional computing and forming new computing paradigms to promote the digital revolution in the era of the Internet of Things, big data, and artificial intelligence. Intelligent computing has greatly expanded the scope of computing through new computing theories, architectures, methodologies, systems, and applications, and it is expanding into diverse computing paradigms such as perceptual intelligence, cognitive intelligence, autonomous intelligence, and human-computer fusion intelligence. This paper introduces the concept and main features of intelligent computing and describes trends in standardization for intelligent computing within the ISO/IEC JTC 1, focusing on the technical trend report on intelligent computing that is currently under development within ISO/ IEC JTC 1/AG 2.

• 디지털융복합연구
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• 제20권5호
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• pp.275-280
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• 2022

본 논문은 비대면 미술감상 교육을 위해 사용자의 상황 정보 및 취향에 맞는 태그가 융합된 융·복합 예술 플레이리스트 콘텐츠를 사용자에게 추천하는 기술을 제안하고자 한다. 제안한 기술의 구현을 위해 예술 작품의 특성을 분석하고, 분석된 작품들의 태그를 기반으로 관련된 음악과 미술작품을 매칭한다. 또한 매칭된 작품을 활용해 융·복합 예술 관람 플레이리스트 콘텐츠를 자동으로 생성하는 기술을 제안하고자 한다.

• International Journal of Internet, Broadcasting and Communication
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• 제16권2호
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• pp.81-86
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• 2024

Advancements in generative AI are reshaping graphic and 3D content design landscapes, where AI not only enriches graphic design but extends its reach to 3D content creation. Though 3D texture mapping through AI is advancing, AI-generated 3D modeling technology in this realm remains nascent. This paper presents AI 2D image-driven 3D modeling techniques, assessing their viability in 3D content design by scrutinizing various algorithms. Initially, four OBJ model-exporting AI algorithms are screened, and two are further evaluated. Results indicate that while AI-generated 3D models may not be directly usable, they effectively capture reference object structures, offering substantial time savings and enhanced design efficiency through manual refinements. This endeavor pioneers new avenues for 3D content creators, anticipating a dynamic fusion of AI and 3D design.

• International Journal of Internet, Broadcasting and Communication
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• 제16권2호
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• pp.87-92
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• 2024

The rapid development of artificial intelligence technology in recent years is evident, from the emergence of ChatGPT to innovations like Midjourney, Stable Diffution, and the upcoming SORA text-to-video technology by OPENai. Animation capture technology, driven by the AI technology trend, is undergoing significant advancements, accelerating the progress of the animation industry. Through an analysis of the current application of DEEPMOTION, this paper explores the development direction of AI motion capture technology, analyzes issues such as errors in multi-person object motion capture, and examines the vast prospects. With the continuous advancement of AI technology, the ability to recognize and track complex movements and expressions faster and more accurately, reduce human errors, enhance processing speed and efficiency. This advancement lowers technological barriers and accelerates the fusion of virtual and real worlds.

• 디지털융복합연구
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• 제18권9호
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• pp.337-342
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• 2020

예술과 과학이 융합된 전시회, 양평군립미술관의 '미디어시티전(展)' 작품 분석을 중심으로 뉴미디어 아트 장르인 디지털아트, 컴퓨터 아트, 인터넷 아트, 인터렉티브 아트의 컴퓨터와 인터넷 미디어 기술을 기반으로 하는 예술 작품사례를 통해서 관객과 전시 오브젝트간의 상호작용과 소통 방식을 연구하였다. 뉴미디어 작품은 실험적 성향의 다양한 기술들과 융합하여 새로운 형태로 표현되고 있음을 확인했으며 해외 미디어관련 전시 사례들과 국내 '미디어시티전(展)' 에 출품된 작품들의 인터랙티브 미디어 활용 사례들을 연구 분석하였으며 전시 작품들에서 뉴미디어 아트의 주요 특성을 확인할 수 있었다. 향후에는 특정 기준을 설정하여 뉴미디어 아트의 활용 분야를 중심으로 살펴보고 시대 현황과 비교하여 미래 가치를 고민하고 분석해본다면 의미 있는 연구가 될 것이라 생각한다.

• 복식문화연구
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• 제23권2호
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• pp.254-269
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• 2015

The digital technology that has brought about the information revolution acts as the causes of multi-faceted socio-cultural phenomena. The spread of the digital environment and the popularity of the digital devices accelerate the phenomenon or the fusion of culture and technology, and such a phenomenon is no exception in the fashion design. Namely, the combination of fashion design and digital-based technology draws more and more attention; Not only the technology is simply applied to the fashion design, but also it is used as an emotional tool to enhance consumers' satisfaction, while some designs and marketing cases stimulating consumers' emotion are highlighted importantly. This study was aimed at surveying and analyzing the contemporary fashion using the digital technology and thereupon, assessing the characteristics of the emotional representations of technology as well as their aesthetic values. To this end, the theory of 'science of emotion and sensibility' was applied to divide the characteristics of emotional technological expressions in the contemporary fashion into immateriality, non-boundary, multi-media and interaction, while the aesthetic values of the emotional technology immanent in the contemporary fashion were categorized into communication & participation, conceptual configuration, physical expansion and variable movement. This study analyzed uses of technology for human emotion and sensibility shown in not only collections but also communication media and exhibition spaces and thereby, suggested the direction for our fashion industry to fulfill consumers' changing needs and advance further.