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김승철,정성종,Kim, Seung-Cheol,Jeong, Seong-Jong 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.10
In order to minimize straightness error of deflected shaft, a geometric adaptive straightness controller system is studied. A multi-step straightening and a three-point bending process have been developed for the geometric adaptive straightness controller. Load-deflection relationship, on-line identification of variations of material properties, on-line springback prediction, and real-time hydraulic control methodology are studied for the three-point bending process. By deflection pattern analysis and fuzzy self-learning method in the multi-step straightening process, a straightening point and direction, desired permanent deflection and supporting condition are determined. An automatic straightening machine has been fabricated for rack bars by using the developed ideas. Validity of the proposed system is verified through experiments.
3차원 입체영상 센싱, 이미징 및 디스플레이를 위한 집적영상 및 디지털 홀로그래피 기술
김승철,신동학,김은수,Kim, Seung-Cheol,Shin, Dong-Hak,Kim, Eun-Soo 한국광학회 2014 한국광학회지 Vol.25 No.4
본 논문에서는 기존 스테레오 3D 방식의 문제를 해결할 수 있는 집적영상 및 디지털 홀로그래피 방식을 포함하는 공간영상방식의 3차원 영상기술에 대해 소개하고 최근의 국내외 연구개발 동향에 대해 알아본다. 또한 이를 기반으로 향후 연구개발 방향을 전망한다. In this paper, state-of-the-art digital holography and integral imaging have been introduced as practical three-dimensional imaging and display technology. Operational principles and recent research and development activities of these technologies have been discussed, as well as a vision of their future.