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이철학,김상운 明知大學校 産業技術硏究所 2008 産業技術硏究所論文集 Vol.27 No.-
Among the facial components, the eyes play an important role in recognizing human faces. This paper proposes an effective method of detecting the eyes from facial images, where the detection is carried out two steps. First of all, eye-windows(EW) containing the eyes and eyebrows are extracted with the vertical/horizontal projections. After then, the positions of the eyes are detected by applying the normalized cross correlation (CC)method to the eye window extracted in the first step. While searching the EWs, we have took smoothing firstly to reduce influence of noise and sharper bounds. From the experimental results tor the well-known face databases, we have confirmed a possibility that the proposed method, which is hierarchically combined with EW and CC in sequence, could be available one for appearance based face retrieval.
이철학,김상운 명지대학교 산업기술연구소 2006 産業技術硏究所論文集 Vol.25 No.-
Image segmentation is an essential preliminary step in pattern recognition and scene analysis problems. Thresholding is a fundamental approach to segmentation that utilizes a significant degree of pixel popularity or intensity. Otsu's thresholding is one of the most well-known methods proposed in the literature. In the Otsu's method, the normalized histogram was employed as a discrete probability density function and a criterion of maximizing the between-class variance of pixel intensity was utilized to choose a threshold value for segmentation. In this paper, first of all, we simplify the between-class variance by which we can easily compute the criterion. Then, we propose a simple thresholding method for finding multi-level threshold values by extending the Otsu's method. Our experimental results how a possibility that the proposed method could be used efficiently for image segmentation.
문장패턴 변환방법을 이용한 韓-中-日 수화 통신 시스템에 관한 기초연구
이철학,김상운 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-
Abstract - In this paper, we implemented and investigated a sign-language communication system among Korean, Chinese, and Japanese as an extension of the sign-language communication system between Korean and Japanese. Using the system, the deaf-mute can chat each other with sign-language among the three country having different languages on the Internet. Additionally, a translation of sigh-language enables the people with different languages to communicate each other. The system employed the client-server architecture, where the client inputs the sentence by keyboard, and sends it to the server. Then the server translates it into target sign-language parameters and returns them to the group of clients. Finally, the client re-generates the sigh-language animation with the received parameters. At that time, we have used a translation table of language patterns to translate each other among different language structures.
Xue Zhe Quan 퇴계학부산연구원 2011 퇴계학논총 Vol.18 No.-
As a famous Scholars of Zhu Xi's theory in the Medieval of Korea, Yi Toegye whose philosophy theory was suitable for Korea took Zhu Xi's Theory as basic, and also epitomized the theories of Scholars in Song Yuan and Ming Dynasties. Besides, there are many perfect educational views. in the system of his philosophy theory. The thought of Yi Toegye about "Respectfulness", let alone in the Korean Peninsula,also had a great impact on the thought of Sakimon school in the Edo Period the Edo.His main writings which are as the carrier of spread such as Personal Reflections, Outline and Explanations of the Works of Zhu Xi,The Ten Diagrams on Sage Learning, Collected Works and so on. Specially, the thought of "Respectfulness" was intensively expressed. in Personal Reflections. "Tranquility Proposition"of the neutralize six book which was given to Zhang Nanxuan by Zhu Xi, and "The doctrine of respect" discoursing the trees of Niu mountain of Mencius in the volume 3 of the Heart of notes written by Cheng Huangdun in the Ming Dynasty. Both of them which are the very core of thought of Yi Toegye about "Respectfulness" are written in the volume 3 of Outline and Explanations of the Works of Zhu Xi. As Mr. Abei Yoshio said, The thought of Yi Toegye about "Respectfulness" is not merely abstractly academicism issues. It also attempt to the highest category of human's moral, in addition to look for the purpose and method of education. This is nothing else than Mr. Okada Takehiko exposited the Cultivating theory of Toegye. Human being are conscious of the abstruse realm from the practice. The way of awareness ties up with application. In this paper, I will go though Personal Reflections, detailedly inspecting Yi Toegye's thought about "Respectfulness" and its relationship to his educational practice.
Zhe-Xue Quan,Dan-Ning Zeng,Yi-Ping Xiao,노성운,Young-Do Nam,Ho-Won Chang,윤정훈,오희목,배진우 한국미생물학회 2009 The journal of microbiology Vol.47 No.2
A bacterial strain, designated Iso4T, was isolated from the East Sea of Korea and was subjected to a polyphasictaxonomy study including phenotypic and chemotaxonomic characteristics as well as 16S rRNAgene sequence analysis. Cells of the strain were Gram-negative, motile, non-budding, non-stalked, andstrictly aerobic. Strain Iso4T grew optimally at 20°C in the presence of 1~2% (w/v) NaCl and at pH 6.9~7.6. The major respiratory quinone was Q-10 and the major cellular fatty acids were C18:1 ω7c (53.5%),C17:1 ω5c (11.7%), C17:1 ω6c (8.1%), C16:0 (7.8%), C17:0 (4.8%), C15:0 (2.9%), and C16:1 ω5c (2.2%). The DNAG+C content of strain Iso4T was 56.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequencesshowed that strain Iso4T formed a monophyletic clade in the family Hyphomonadaceae, supported by highbootstrap value and was most closely related to the genus Hyphomonas (92~94%), a member of marinebacteria in the family. The phenotypic, genotypic, and chemotaxonomic evidences also suggest strain Iso4Trepresents a novel genus and species in the family Hyphomonadaceae, for which the name Henriciella gen. nov., sp. nov. is proposed. The type strain is Iso4T (=KCTC 12513T =DSM 19595T =JCM 15116T).
이철학(Zhe-Xue Li),김상운(Sang-Woon Kim) 대한전자공학회 2006 대한전자공학회 학술대회 Vol.2006 No.11
Among the facial components, the eyes play an important role in recognizing human faces. This paper proposes an effective method of detecting the eyes from facial images, where the detection is carried out two steps. First of all, eye-windows containing the eyes and eyebrows are extracted with the vertical/horizontal projections. After then, the positions of the eyes are detected by applying the normalized cross correlation method to the eye window extracted in the first step. Our experimental results demonstrate the proposed mechanism achieves the highest efficiency results in terms of the extraction accuracy compared with the conventional eye-extraction approaches for well-known face databases involving AT&T and Yale databases.