Autofocus and/or autoscaling in telesurgery
First Claim
1. A surgical robotic system comprising:
- an image capture device having a variable focus and an initial focus point;
a robotic linkage movably extending from a base to the image capture device;
at least one sensor for generating a sensor signal indicating movement of the robotic linkage;
an actuator coupled to the variable focus of the image capture device; and
a processor configured to determine, based on the sensor signal, a change in distance between the image capture device and the initial focus point, the processor further configured to adjust the variable focus of the image capture device according to a predetermined relationship between a focus setting of the image capture device and the change in distance.
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Accused Products
Abstract
Robotic, telerobotic, and/or telesurgical devices, systems, and methods take advantage of robotic structures and data to calculate changes in the focus of an image capture device in response to movement of the image capture device, a robotic end effector, or the like. As the size of an image of an object shown in the display device varies with changes in a separation distance between that object and the image capture device used to capture the image, a scale factor between a movement command input may be changed in response to moving an input device or a corresponding master/slave robotic movement command of the system. This may enhance the perceived correlation between the input commands and the robotic movements as they appear in the image presented to the system operator.
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Citations
14 Claims
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1. A surgical robotic system comprising:
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an image capture device having a variable focus and an initial focus point; a robotic linkage movably extending from a base to the image capture device; at least one sensor for generating a sensor signal indicating movement of the robotic linkage; an actuator coupled to the variable focus of the image capture device; and a processor configured to determine, based on the sensor signal, a change in distance between the image capture device and the initial focus point, the processor further configured to adjust the variable focus of the image capture device according to a predetermined relationship between a focus setting of the image capture device and the change in distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification