Using Kinect and a Haptic Interface for Implementation of Real-Time Virtual Fixture
2011
The use of haptic virtual fixtures is a potential
tool to improve the safety of robotic and telerobotic surgery.
They can “push back” on the surgeon to prevent unintended
surgical tool movements into protected zones. Previous work has
suggested generating virtual fixtures from preoperative images
like CT scans. However these are difficult to establish and register
in dynamic environments. This paper demonstrates automatic
generation of real-time haptic virtual fixtures using a low cost
Xbox KinectTMdepth camera connected to a virtual environment.
This allows generation of virtual fixtures and calculation of haptic
forces, which are then passed on to a haptic device. This paper
demonstrates that haptic forces can be successfully rendered from
real-time environments containing both non-moving and moving
objects. This approach has the potential to generate virtual
fixtures from the patient in real-time during robotic surgery.
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