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박근호,김제동 昌原大學校 基礎科學硏究所 1998 基礎科學硏究所論文集 Vol.10 No.-
The unsaturated fatty acids(arachidonic acid, oleic acid, linoleic acid, linolenic acid, and palmitoleic acid) was repeatedly applied on water surface, and their π-A isotherms and Maxwell displacement current(MDC) were measured to identify the effect of the number of carbons or unsaturated double bonds of fatty acids on the properties of Langmuir films. The unsaturated fatty acids which contain higher carbon number showed higher MDC peak, and the unsaturated fatty acids showed typical thermal equilibrium expansion pressure. Finally, the maximum of MDC peaks was at the molecular area before the surface pressure increases in compression cycles of unsaturated fatty acids.
단안 영상의 입체 자유시점 Tour-Into-Picture
김제동(Jedong Kim),이광훈(Kwanghoon Lee),김만배(Manbae Kim) 한국방송·미디어공학회 2010 방송공학회논문지 Vol.15 No.2
The free viewpoint video delivers an active contents where users can see the images rendered from the viewpoints chosen by them. Its applications are found in broad areas, especially museum tour, entertainment and so forth. As a new free-viewpoint application, this paper presents a stereoscopic free-viewpoint TIP (Tour Into Picture) where users can navigate the inside of a single image controlling a virtual camera and utilizing depth data. Unlike conventional TIP methods providing 2D image or video, our proposed method can provide users with 3D stereoscopic and free-viewpoint contents. Navigating a picture with stereoscopic viewing can deliver more realistic and immersive perception. The method uses semi-automatic processing to make foreground mask, background image, and depth map. The second step is to navigate the single picture and to obtain rendered images by perspective projection. For the free-viewpoint viewing, a virtual camera whose operations include translation, rotation, look-around, and zooming is operated. In experiments, the proposed method was tested eth‘Danopungjun‘ that is one of famous paintings made in Chosun Dynasty. The free-viewpoint software is developed based on MFC Visual C++ and OpenGL libraries.