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김상준,이영식,이유,김용하,KIM SANG JOON,LEE YOUNG SIEK,YI YU,KIM YOUNG HA 한국천문학회 2000 天文學論叢 Vol.15 No.suppl1
We have presented detected molecules, atoms, radicals, ions, and dimers in the atmospheres of planets and comets from Earth-based and spaceborne observatories during the last 3 decades. We have reviewed spectroscopic studies on the auroral emissions and air glows of the giant planets, and briefly summarized spectroscopic observations of dimers in the atmospheres of the giant planets and Titan. In particular, we highlighted the recent detections of new molecular emissions and absorptions in the spectra of the giant planets, Titan, and recent bright comets from spaceborne or ground-based observatories. We also reviewed current models and theories of the origin and evolution of the solar system, and implications of isotopic ratios in these atmospheres.
김상준,김하경,Sang Joon Kim,MD,Ha Kyoung Kim,MD,PhD 대한안과학회 2013 대한안과학회지 Vol.54 No.6
Purpose: To evaluate if the presence of pathologic myopia could affect the result of macular hole surgery. Methods: This study was a retrospective comparison of the results of macular hole surgery between a pathologic myopia group (11 eyes) and a non-pathologic myopia group (14 eyes). All patients had undergone PPV, ILM peeling and C3F8 (20%) gas temponade. BCVA, IOP and OCT findings were evaluated preoperatively and at 6 months after surgery. Postoperative BCVA, IOP and macular hole closure were compared between each groups. Results: The only statistically significant preoperative parameter between the groups was axial length (p < 0.001). Postoperative BCVA was lower in the pathologic myopia group, but the difference was not statistically significant. The rate of macular hole closure was statistically significant higher in the non-pathologic myopia group (p < 0.001). Conclusions: The presence of pathologic myopia may negatively affect the result of macular hole surgery.
김상준,김진영,박성표,Sang Joon Kim,Jin Young Kim,Sung Pyo Park 대한안과학회 2008 대한안과학회지 Vol.49 No.6
Purpose: We report a case of post‐traumatic bilateral serous retinal detachment that resolved spontaneously within a month. Case summary: An 8-year-old male patient presented with post-traumatic bilateral serous retinal detachment and decreased visual acuity. We did not perform any specific treatment. Best corrected visual acuity (BCVA), fluorescein angiography (FA), optical coherence tomography (OCT), and slit lamp examination were used. Conclusions: After 1 month, the patient’s BCVA improved to 1.0 in both eyes, and serous retinal detachment resolved; FA findings and OCT findings were nearly normal. J Korean Ophthalmol Soc 49(6):1018-1021, 2008
모바일 게임을 위한 증강현실 기반 직관적 변형 직물객체 조작
김상준 ( Sang-joon Kim ),홍민 ( Min Hong ),최유주 ( Yoo-joo Choi ) 한국정보처리학회 2018 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.7 No.4
최근 높은 관심을 모으고 있는 모바일 증강현실 게임은 몰입감을 높이기 위한 접근 방법으로 손꼽히고 있다. 모바일 디바이스의 카메라를 이용하여 대상 물체를 인식하고 게임 캐릭터가 등장하도록 하는 기존 증강현실 기반의 게임에서는 대부분이 터치 기반의 인터랙션만을 사용하고 있다. 본 논문에서는 게임의 몰입도를 높이기 위하여 증강현실 타겟 이미지를 움직임으로써 게임 속 변형 객체를 직관적으로 조작하는 기법을 제안한다. 제안 방법에서는 타겟 이미지들 사이의 거리와 방향을 계산하고, 이에 따라 변형객체에 주어지는 외부력(external force)의 크기를 조정함으로써, 직관적 방법으로 변형 객체의 움직임을 조작할 수 있도록 하였다. 본 논문에서는 게임 콘텐츠에서 자연스러운 객체 표현을 위하여 많이 사용되고 있는 변형 직물(cloth) 모델에 초점을 맞추었고, 바람(wind)과 강체(rigid object)로 표현되는 게임 객체들과 상호작용하는 자연스러운 직물의 움직임을 표현하였다. 실험에서는 유니티 에셋 스토어에서 판매하는 기존 유료 직물 모델의 적용 결과와의 비교를 통하여 제안 기법이 보다 현실감 있는 직물의 움직임을 표현하고 있는 것을 보였다. In recent, mobile augmented reality game which has been attracting high attention is considered to be an good approach to increase immersion. In conventional augmented reality-based games that recognize target objects using a mobile camera and show the matching game characters, touch-based interaction is mainly used. In this paper, we propose an intuitive interaction method which manipulates a deformable game object by moving a target image of augmented reality in order to enhacne the immersion of the game. In the proposed method, the deformable object is intuitively manipulated by calculating the distance and direction between the target images and by adjusting the external force applied to the deformable object using them. In this paper, we focus on the cloth deformable object which is widely used for natural object animation in game contents and implement natural cloth simulation interacting with game objects represented by wind and rigid objects. In the experiments, we compare the previous commercial cloth model with the proposed method and show the proposed method can represent cloth animation more realistically.