7 papers · 1 filter
SSTL: Self-Sensing Tendon Loop for Hysteresis Modeling and Compensation in Tendon-Sheath Mechanisms
Myeongbo Park, Junhyun Park, Ihsan Ullah +2
Flexible endoscopic robots enable minimally invasive access through natural orifices, but their control accuracy is limited by configuration-dependent hysteresis in the tendon-shea…
Markerless 6D Pose Estimation and Position-Based Visual Servoing for Endoscopic Continuum Manipulators
Junhyun Park, Chunggil An, Myeongbo Park +3
Continuum manipulators in flexible endoscopic surgical systems offer high dexterity for minimally invasive procedures; however, accurate pose estimation and closed-loop control rem…
SIMS: Surgeon-Intention-driven Motion Scaling for Efficient and Precise Teleoperation
Jeonghyeon Yoon, Sanghyeok Park, Hyojae Park +3
Telerobotic surgery often relies on a fixed motion scaling factor (MSF) to map the surgeon's hand motions to robotic instruments, but this introduces a trade-off between precision…
Vibration-Assisted Hysteresis Mitigation for Achieving High Compensation Efficiency
Myeongbo Park, Chunggil An, Junhyun Park +2
Tendon-sheath mechanisms (TSMs) are widely used in minimally invasive surgical (MIS) applications, but their inherent hysteresis-caused by friction, backlash, and tendon elongation…
SAM: Semi-Active Mechanism for Extensible Continuum Manipulator and Real-time Hysteresis Compensation Control Algorithm
Junhyun Park, Seonghyeok Jang, Myeongbo Park +3
Cable-Driven Continuum Manipulators (CDCMs) enable scar-free procedures but face limitations in workspace and control accuracy due to hysteresis. We introduce an extensible CDCM wi…
Hysteresis Compensation of Flexible Continuum Manipulator using RGBD Sensing and Temporal Convolutional Network
Junhyun Park, Seonghyeok Jang, Hyojae Park +2
Flexible continuum manipulators are valued for minimally invasive surgery, offering access to confined spaces through nonlinear paths. However, cable-driven manipulators face contr…