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타겟 이동에 의해 발생한 흐려짐을 감소하기 위한 초음파 영상의 공간합성 알고리즘
한민수,최명환 강원대학교 정보통신연구소 2012 정보통신논문지 Vol.16 No.-
When spatial compounding is applied to a moving target to improve the quality of ultrasound image, motion blurring is caused. Spatial compounding is a process to merge several images gained from different steering angles of ultrasound echo-pulse into a single image. By merging images at different times, the resulting image is blurred. This paper suggests blurring reduction algorithm that u仕lizes periodic motion property of human body to improve the quality of spatially compounded image. It is shown that blurring in the edge of the images is reduced in the experiment.
고대 안료의 성분분석 연구-쌍계사 탱화 안료를 중심으로
한민수,홍종욱,Han, Min-Su,Hong, Jong-Ouk 국립문화재연구소 2003 保存科學硏究 Vol.24 No.-
In ancient times, many kinds of different inorganic pigments were used as colorants for making objects. These pigments are still evidentin well known objects such as Danchung, mural painting and Buddhist painting. This study discusses the results obtained from an analysis of the pigments used on the Buddha pigments. The results can be briefly summarized as below; Firstly, the microcrystalline structures revealed on the cross section of analyzed pigments, samples of which were taken from various parts of Buddha pigments show that different sizes and shapes of pigment particle were used for different purposes such as coloring, toning of the pigments. The arrangement of pigments and their usages are varied according to the owner temples and the place where it was created. Secondly, a result of the analysis on the composition and structure of the pigments shows that the main components in their composition are: Red pigments - Red lead($Pb_3O_4$) and Cinnabar(HgS)Green pigments - Malachite[$CuCO_3$.$Cu(OH)_2$] and Prussian Blue[$Fe4(Fe(CN)_6)_2$]Gold pigments - pure gold(Au)Yellow pigments - Orpiment($A_s2S_3)White pigments - Lead Cyanamide[$Pb_3(CO_3)_2(OH)_2]Ultramarine pigments - Azulite[$Cu_3(CO_3)_2(OH)_2]Especially, we knew that pigments used on the Ssanggye temple not repaired to the artificial synthetic pigment