https://pubs.kist.re.kr/handle/123456789/75380 Mon, 06 Apr 2026 06:40:21 GMT 2026-04-06T06:40:21Z https://pubs.kist.re.kr/handle/201004/117927 Title: A desktop autostereoscopic display with head-tracking capability Authors: Son, JY; Shestak, SA; Kim, SS; Choi, YJ Abstract: A desktop 20inches autostereoscopic display system based on two 6.5 inches LCD projection panels and a single objective is described. The system employs vertical separation of left and right views in the objective's entrance pupil for the viewing zone forming. The vertically separated views are horizontally divided with use of a positioned at the pupil. This diaphragm is composed of two horizontally parallel LC stripes shutters witch are made of independently working 32 black and white LCD columns. A rear projection type screen made of a Fresnel lens with a vertical diffuser is used for the image projection. The screen provides the best viewing distance of 70 - 80cm. The system equipped with a head-tracking device for 16-view image display. The system is compatible with any dual monitor SVGA video card with resolution 800 X 600 or any source of parallel stereoscopic video signal. The size of the system is comparable to that of 20 inch CRT monitor. Mon, 01 Jan 2001 00:00:00 GMT https://pubs.kist.re.kr/handle/201004/117927 2001-01-01T00:00:00Z https://pubs.kist.re.kr/handle/201004/117926 Title: Biomechanical study on the periodontal ligamen-like artificial membrane around dental implant Authors: Choi, K; Kwon, IC; Khang, G; Rhee, K; Lee, YC Abstract: In this study, chitosan was coated on dental implants to serve as a periodontal ligament-like soft membrane and the biomechanical functions of the membrane were studied. The results by experiments and ITEM analysis showed: 1) Initial stability of the dental implant significantly increased (35%) when it was coated with chitosan, and 2) the coated implants showed significantly higher impact absorbing capability, more even stress distribution, and lower peak stress magnitude in bone tissue around implant under impact loading than uncoated implants. Fri, 01 Jun 2001 00:00:00 GMT https://pubs.kist.re.kr/handle/201004/117926 2001-06-01T00:00:00Z https://pubs.kist.re.kr/handle/201004/117925 Title: The synthesis of Ti3SiC2 by Si melt infiltration Authors: Lim, B; Park, SW; Lee, SS; Kim, TW Abstract: Ti3SiC2 phase has been known as metal like ceramics due to its unique properties. In the present study, the new method for the synthesis of Ti3SiC2 phase was developed. Ti3SiC2 phase was synthesized by using active Si melt infiltration method. Specific amounts of Si melt were infiltrated into the preform made of Ti and C powder with certain contents. Using Si melt infiltration method, Ti3SiC2 phase was synthesized successfully with some of secondary phases. At the higher Si and C contents than that required for stoichiometric Ti3SiC2 phase, TiSi2 and SiC were formed with Ti3SiC2 phase, respectively. TiC as a starting material instead of Ti and C was found to be effective to synthesize Ti3SiC2 with a high purity since Ti3SiC2 in the reaction system between TiC and Si melt seemed to be directly synthesized without forming intermediate phases such as TiSi2 and Ti5SiCx. Mon, 01 Jan 2001 00:00:00 GMT https://pubs.kist.re.kr/handle/201004/117925 2001-01-01T00:00:00Z https://pubs.kist.re.kr/handle/201004/117923 Title: A real-time color-based object tracking robust to irregular illumination variations Authors: Lee, YB; You, BJ; Lee, SW Abstract: Color-based object tracking takes great attentions since a color is an efficient and robust visual cue for characterizing one object from the other objects. Color segmentation is, however, suffered from color variations induced from irregular illumination variations and the viewing geometry, of a camera. This paper proposes a reliable color modeling approach including intensity information in HSI color space using B-spline curves based on the fact that color distribution of a single-colored object even in HS (Hue-Saturation) plane is not invariant with respect to brightness variations in practical cameras. By using the approach, our color-based visual tracker is able to adapt to irregular illumination variations and abrupt changes of brightness. The approach is applied for real-time face tracking under various illumination conditions successfully in a PC-based vision system. Mon, 01 Jan 2001 00:00:00 GMT https://pubs.kist.re.kr/handle/201004/117923 2001-01-01T00:00:00Z