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신상균(Sangkyun Shin),김래현(Laehyun Kim),한만철(Manchul Han),조현철(Hyunchul Cho),박세형(Sehyung Park) 한국HCI학회 2009 한국HCI학회 학술대회 Vol.2009 No.2
기존에 제안했던 실감가상시작을 위한 햅틱 다이얼 시스템을 개선하여 보다 다양하고 세련된 햅틱 효과를 주는 시스템을 제안한다. 제안된 시스템은 사용자가 실제 제품을 조작하는 듯한 느낌을 얻을 수 있도록 힘의 세기에 따른 사운드의 변화를 주며, 미리 디자인된 햅틱 효과를 GUI부 화면에서 선택하여 실시간으로 변환할 수 있다. 또한 그래픽으로 표현된 햅틱 효과에 대해 힘의 세기나 노치의 간격을 편집할 수 있다. 햅틱 다이얼에는 실제 제품에 사용되는 여러 종류의 다이얼 노브를 탈부착할 수 있어서 사용자가 실제와 같은 느낌을 받을 수 있다. 제안된 시스템은 TCP통신으로 모터부와 GUI부가 정보를 주고받기 때문에 원격 제어가 가능하다. 이 시스템은 햅틱 효과 출력 장치일 뿐만 아니라 입력 인터페이스로 사용될 수 있으므로 그 활용 범위가 넓다. The purpose of this study is to propose a new Haptic Dial System (HDS) for Virtual Prototyping by developing upgraded systems and various Haptic effects. The Haptic Effect Design (HED) which gives users sensations like handling actual products has a function of controlling loudness by force and changing Haptic effects on GUI windows in real-time. In addition, the HED has another function of editing intervals to express Haptic effects as graphical force and notch on windows. Many kind of dial knob can be attached and removed easily for testing the performance of actual product designs. The HDS can be remotecontrolled through giving and taking the information between motor part and GUI part with TCP communication. The HDS can be applied to the output devices of Haptic effects as well as input-interfaces.
뇌혈종 제거 수술을 위한 무마커 수술 유도 로봇 시스템의 정확도 향상을 위한 캘리브레이션 기법
박규식(Kyusic Park),윤현민(Hyon Min Yoon),신상균(Sangkyun Shin),조현철(Hyunchul Cho),김영준(Youngjun Kim),김래현(Laehyun Kim),이득희(Deukhee Lee) (사)한국CDE학회 2015 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2015 No.동계
In this paper, we propose calibration methods that can be applied to the markerless surgical robotic system for Intracerebral Hematoma (ICH) Surgery. This surgical robotic system does not require additional process of patient imaging but only uses CT images that are initially taken for a diagnosis purpose. Furthermore, the system applies markerless registration method other than using stereotactic frames. Thus, in overall, our system has many advantages when compared to other conventional ICH surgeries in that they are noninvasive, much less exposed to radiation exposure, and most importantly reduces a total operation time. In the paper, we specifically focus on the application of calibration methods and their verification which is one of the most critical factors that determine the accuracy of the system. We implemented three applications of calibration methods between the coordinates of robot’s end-effector and the coordinates of 3D facial surface scanner, based on the hand-eye calibration method. Phantom tests were conducted to validate the feasibility and accuracy of our proposed calibration methods and the surgical robotic system.
뇌혈종 제거 수술을 위한 무마커 수술 유도 로봇 시스템의 정확도 향상을 위한 캘리브레이션 기법
박규식(Kyusic Park),윤현민(Hyon Min Yoon),신상균(Sangkyun Shin),조현철(Hyunchul Cho),김영준(Youngjun Kim),김래현(Laehyun Kim),이득희(Deukhee Lee) (사)한국CDE학회 2015 한국CDE학회 논문집 Vol.20 No.3
In this paper, we propose calibration methods that can be applied to the markerless surgical robotic system for Intracerebral Hematoma (ICH) Surgery. This surgical robotic system does not require additional process of patient imaging but only uses CT images that are initially taken for a diagnosis purpose. Furthermore, the system applies markerless registration method other than using stereotactic frames. Thus, in overall, our system has many advantages when compared to other conventional ICH surgeries in that they are non-invasive, much less exposed to radiation exposure, and most importantly reduces a total operation time. In the paper, we specifically focus on the application of calibration methods and their verification which is one of the most critical factors that determine the accuracy of the system. We implemented three applications of calibration methods between the coordinates of robot’s end-effector and the coordinates of 3D facial surface scanner, based on the hand-eye calibration method. Phantom tests were conducted to validate the feasibility and accuracy of our proposed calibration methods and the surgical robotic system.
C-arm 영상 기반 척추 디스크 내시경 수술을 위한 가이드 바늘 삽입 보조 시스템
윤현민(Hyon Min Yoon),조현철(Hyunchul Cho),박규식(Kyusic Park),신상균(Sangkyun Shin),이득희(Deukhee Lee) (사)한국CDE학회 2015 한국CDE학회 논문집 Vol.20 No.3
Due to an increased sitting time in work, lumbar disc disease is one of the most frequent diseases in modern days, and this occasionally requires surgery for treatment. Endoscopic disc surgery, one of the common disc surgeries, requires a process of inserting a guide needle to the target disc for which the insertion path is manually planned by drawing lines on the patient’s skin while monitoring the fluoroscopic view of the lumbar. Such procedure inevitably exposes both surgeon and patient to the fluoroscopy radiation emitted from the c-arm for a long time. To reduce the radiation exposure time, this study proposes a computer assisted method of calculating the 3D guide needle path by using 2D c-arm images of the disc in 3 different angles. Additionally, a method of the guide robot control based on the 3D needle path was developed by implementing the Hand-eye Calibration method to calculate the transformation matrix between the c-arm and robot base coordinate systems. The proposed system was then tested for its accuracy.
C-arm 영상 기반 척추 디스크 내시경 수술을 위한 가이드 바늘 삽입 보조 시스템
윤현민(Hyon Min Yoon),조현철(Hyunchul Cho),박규식(Kyusic Park),신상균(Sangkyun Shin),이득희(Deukhee Lee) (사)한국CDE학회 2015 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2015 No.동계
Due to an increased sitting time in work, lumbar disc disease is one of the most frequent diseases in modern days, and this occasionally requires surgery for treatment. Endoscopic disc surgery, one of the common disc surgeries, requires a process of inserting a guide needle to the target disc for which the insertion path is manually planned by drawing lines on the patient’s skin while monitoring the fluoroscopic view of the lumbar. Such procedure inevitably exposes both surgeon and patient to the fluoroscopy radiation emitted from the c-arm for a long time. To reduce the radiation exposure time, this study proposes a computer assisted method of calculating the 3D guide needle path by using 2D c-arm images of the disc in 3 different angles. Additionally, a method of the guide robot control based on the 3D needle path was developed by implementing the Hand-eye Calibration method to calculate the transformation matrix between the c-arm and robot base coordinate systems. The proposed system was then tested for its accuracy.