4 accepted papers
This letter provides a methodology to analyze noise sensitivity of quaternion and axis-angle representations in the presence of joint measurement noise. A general formulation based on the trace of the rotation matrix is proposed, enabling to compute noise sensitivity as a function of robot postures
This paper discusses a new teleoperation approach for robotic-assisted tele-echography. A teleoperation architecture in the joint space is presented, taking advantage of kinematic similarity between master and slave manipulators. Haptic force feedback is provided based on the slave control command t…
Typical robot force control architectures have a positive force feedback loop to decouple robot dynamics from contact dynamics. Due to the noisy profile of force measurements, it is common to filter force signals by low pass filters. This paper shows that, when force feedback is filtered, robot and…
This paper discusses a new control approach for robotic-assisted tele-echography where contact dynamics are driven by a 3D time-of-flight camera and a force sensor. Based on 3D camera and force data, contact stiffness is anticipated, allowing adaptation before contact. This approach enables to slow…