• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.12
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• pp.1846-1852
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• 2021

In modern society, various digital devices are being distributed in a wide range of fields due to the fourth industrial revolution and the development of IoT technology. However, noise is generated in the process of acquiring or transmitting an image, and not only damages the information, but also affects the system, causing errors and incorrect operation. AWGN is a representative noise among image noise. As a method for removing noise, prior research has been conducted, and among them, AF, A-TMF, and MF are the representative methods. Existing filters have a disadvantage that smoothing occurs in areas with high frequency components because it is difficult to consider the characteristics of images. Therefore, the proposed algorithm calculates the standard deviation distribution to effectively eliminate noise even in the high frequency domain, and then calculates the final output by applying the probability density function weight of the Laplace distribution using the curve fitting method.

• Journal of Korean Society of Archives and Records Management
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• v.23 no.1
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• pp.27-45
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• 2023

A source of records is critical and highly valuable for records management. The compositions and functions of an administrative organization, which is the source of public records, are changing according to its frequent reorganizations. In particular, changes in local governments are frequent, and the possibility of change increases over time. The processing department is responsible for various records management tasks as the source and producer of records; however, its scope of qualifications is unclear. As such, this study aims to clarify these sources of records and suggest ways to improve their management. For the objective, this study selected D regional local government and analyzed the forms and frequency of its administrative organizational changes. In particular, the processing department's modified organizational functions and compositions due to reorganizations were also examined. Through the analysis, problems concerning records sources that could arise from changes in the administrative organization and processing department were identified, and improvement plans for records management were suggested.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.1
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• pp.157-164
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• 2023

In modern society, smart home has become a part of people's daily life. But traditional smart home systems often have problems such as security, data centralization and easy tampering, so a blockchain is an emerging technology that solves the problems. This paper proposes a blockchain-based smart home system which consists in a home and a blockchain network part. The blockchain network with 8 nodes is implemented by HyperLeger Fabric platform on Docker. ECC(Elliptic Curve Cryptography) technology is used for data transmission security and RBAC(role-based access control) manages the certificates of network members. Raft consensus algorithm maintains data consistency across all nodes in a distributed system and reduces block generation time. The query and data submission are controlled by the smart contract which allows nodes to safely and efficiently access smart home data. The experimental results show that the proposed system maintains a stable average query and submit time of 84.5 [ms] and 93.67 [ms] under high concurrent accesses, respectively and the transmission data is secured through simulated packet capture attacks.

• Journal of Korean Society of Archives and Records Management
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• v.23 no.3
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• pp.1-20
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• 2023

Art archives are archives that are produced and collected in activities carried out by artists, critics, and related organizations, and a large portion consists of individual records. Because of these characteristics, art archives have a wide range of media and formats, each with their own characteristics and creators, which can lead to copyright issues in individual cases. This study conducted interviews with six art archive professionals from four institutions, secured and analyzed the copyright status and issues that occurred in the art archives field by business area, and suggested applicable measures for each copyright case.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.656-659
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• 2010

오늘날 현대 사회에서 여가생활시간이 늘어나고 이에 따라 사람들은 잦은 커피타임을 갖고 있으며 이로 인해 커피의 섭취량이 날로 늘어나고 있다. 날로 늘어나는 커피 섭취량과 같이 커피의 주성분인 카페인 섭취량 또한 날로 증가 하고 있다. 따라서 본 논문에서는 카페인의 성분과 효능, 인체에 미치는 영향 정도와 음성에 관여하는 정도 등에 대한 결과를 추출하여 실질적으로 카페인이 음성에 미치는 요소를 분석하였다. 이를 위해 본 논문에서는 음성분석 프로그램인 Praat를 사용하였으며 성대의 변화량과 몸 속의 공명음인 Formant를 실험 요소로 적용하였다. 데이터 자료에서 유용성을 입증하고 문제점 해결에 대해 분석하였으며 실험에 의해 제안한 방법의 활용성을 입증하는 연구를 수행하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.1422-1425
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• 2010

현대 사회에서 심장 질환은 3대 사망요인 중 하나로 매우 위험한 질환으로 분류되고 있으며 이에 의한 사망률이 매년 증가하는 추세이다. 기존의 의학적 상식에 의하면 스테로이드계의 남성 호르몬인 테스토스테론은 심장 질환과 관련이 있다고 되어 있다. 테스토스테론은 남성에게 중요한 호르몬으로 적당량이 분비되어야 건강하지만 너무 적게 분비가 되면 남성에게 있어 여러 가지의 병의 원인이 된다. 이와 같은 테스토스테론은 남성의 무명지의 길이에 영향을 주는데 분비량에 비례하여 무명지의 길이가 검지에 비해 길어진다. 따라서 본 논문에서는 심장 질환자와 정상인의 무명지 길이와 검지 길이를 비교, 분석하여 무명지의 길이와 심장 질환의 상관관계를 분석하였다.

• Journal of the Korea Society for Simulation
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• v.18 no.2
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• pp.77-89
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• 2009

Visual tracking technique is one of the essential things which are very important in the major fields of modern society. While contour tracking is especially necessary technique in the aspect of its fast performance with target's external contour information, it sometimes fails to track target motion because it is affected by the surrounding edges around target and weak egdes on the target boundary. To overcome these weak points, in this research it is suggested that PDMs can be obtained by generating the virtual 6-DOF motions of the mobile robot with a CCD camera and the image tracking system which is robust to the local minima around the target can be configured by constructing Active Shape Model in modular base. To show the effectiveness of the proposed method, the experiment is performed on the image stream obtained by a real mobile robot and the better performance is confirmed by comparing the experimental results with the ones of other major tracking techniques.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.4
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• pp.73-78
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• 2023

Diabetes is chronic disease that is rapidly increasing in prevalence around the world, and mortality from complications continues to rise. This has made blood glucose management a critical challenge for modern society. The main methods used to manage blood glucose are diet, exercise, and medication. Among these, diet is one of the fundamental foundations of blood glucose management, avoiding foods that cause high blood glucose and minimizing blood glucose fluctuations, and is more accessible to people with diabetes as well as the general population. Currently, several platforms, both domestic and international, offer meal planning services, but this is mainly done by users or professional coaches. Accordingly, this paper implements an accurate Kcal calculation model based on DNN and presents a series of dietary algorithms for blood glucose management based on this.

• Journal of the Korea Society of Computer and Information
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• v.28 no.9
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• pp.93-104
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• 2023

In modern society, the service method is tended to prefer the non-face-to-face method rather than the face-to-face method. However, services that recommend products such as shoes will inevitably be face-to-face method. In this paper, for the purpose of non-face-to-face service, a system that a foot size is automatically measured and some shoes are recommended based on the measurement result is proposed. To analyze the performance of the proposed method, size measurement error rate and recommendation performance were analyzed. In the recommendation performance experiments, a total of 10 methods for similarity calculation were used and the recommendation method with the best performance among them was applied to the system. From the experiments, the error rate the foot size was small and the recommendation performance was possible to derive significant results. The proposed method is at the laboratory level and needs to be expanded and applied to the real environment. Also, the recommendation method considering design could be needed in the future work.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1086-1089
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• 2011

현대 사회의 의학기술과 대체의학은 IT 기술과의 융합적 개발로 점차 발전하고 있다. 동양의학 이론을 통해 인체 중 손, 발, 얼굴 등이 오장육부와 관련이 있다는 학설이 널리 알려져 있다. 이 중 발은 '제2의 심장'이라고까지 불려지고 있다. 즉, 발이 건강해야 전신 건강을 유지할 수 있다는 의미도 있지만 실제로 혈액 순환에도 중요하다는 의미도 있다. 따라서, 본 논문에서는 심장과 관련된 발 영역인 왼쪽발바닥 네번째와 다섯 번째 발가락 사이에서 3cm정도 내려간 부위를 지압하여 심장 관련 얼굴 영역의 색상 변화를 측정하는 실험을 수행하였다. 지압에 쓰이는 지압봉은 일반 가정용으로 사용되는 150x10mm 크기의 지압봉이며 지압법으로는 뒤꿈치 방향에서 심장 지압점까지 누르면서하는 방법을 사용하였다. 이와 같은 발지압법을 수행한 후 심장과 관련된 얼굴 영역인 천정과 입술 부위의 붉은 정도를 Lab색체계로 측정하여 a*값 색상의 변화를 분석하였다.