1
Brian Hoffman
Wenyi Zhao, Christopher J Hasser, William C Nowlin, Brian D Hoffman: Methods and systems for robotic instrument tool tracking. Intuitive Surgical, Intellectual Property Dept, Intutive Surgical, April 2, 2009: US20090088897-A1

In one embodiment of the invention, a method for a robotic system is disclosed to track one or more robotic instruments. The method includes generating kinematics information for the robotic instrument within a field of view of a camera; capturing image information in the field of view of the camera ...


2
Brian Hoffman
Wenyi Zhao, Christopher J Hasser, William C Nowlin, Brian D Hoffman: Methods of locating and tracking robotic instruments in robotic surgical systems. Intuitive Surgical, Intellectual Property Dept, Intutive Surgical, April 2, 2009: US20090088773-A1

In one embodiment of the invention, a method is disclosed to locate a robotic instrument in the field of view of a camera. The method includes capturing sequential images in a field of view of a camera. The sequential images are correlated between successive views. The method further includes receiv ...


3
Brian Hoffman
Wenyi Zhao, Christopher J Hasser, William C Nowlin, Brian D Hoffman: Tool tracking systems and methods for image guided surgery. Intuitive Surgical, Intellectual Property Dept, Intutive Surgical, April 2, 2009: US20090088634-A1

In one embodiment of the invention, a tool tracking system is disclosed including a computer usable medium having computer readable program code to receive images of video frames from at least one camera and to perform image matching of a robotic instrument to determine video pose information of the ...


4
Brian Hoffman
Brandon D Itkowitz, Daniel J Halabe, Tao Zhao, Simon Dimaio, Christopher J Hasser, Catherine J Mohr, Paul W Mohr, David Q Larkin, Wenyi Zhao, Brian D Hoffman: Synthetic representation of a surgical robot. Intuitive Surgical, Patent Dept, Intuitive Surgical, July 30, 2009: US20090192524-A1

A synthetic representation of a robot tool for display on a user interface of a robotic system. The synthetic representation may be used to show the position of a view volume of an image capture device with respect to the robot. The synthetic representation may also be used to find a tool that is ou ...


5
Brian Hoffman
Wenyi Zhao, Chenyu Wu, David Hirvonen, Christopher J Hasser, Brian E Miller, Catherine J Mohr, Myriam J Curet, Tao Zhao, Simon Dimaio, Brian D Hoffman: Efficient 3-d telestration for local robotic proctoring. Intuitive Surgical, Patent Dept, Intuitive Surgical Operations, July 1, 2010: US20100164950-A1

An apparatus is configured to show telestration in 3-D to a surgeon in real time. A proctor is shown one side of a stereo image pair, such that the proctor can draw a telestration line on the one side with an input device. Points of interest are identified for matching to the other side of the stere ...


6
Brian Hoffman
David Scott, Wenyi Zhao, Christopher J Hasser, Brian D Hoffman, Ian McDowall, Catherine J Mohr, John D Stern: Augmented stereoscopic visualization for a surgical robot using time duplexing. Intuitive Surgical, Patent Dept, Intuitive Surgical, October 29, 2009: US20090270678-A1

An endoscope with a stereoscopic optical channel is again held and positioned by a robotic surgical system. A capture unit captures (1) at a first time, a first image from light from the channel; and (2) at a second time different from the first time, a second image from the light. Only one of the f ...


7
Brian Hoffman
David D Scott, Wenyi Zhao, Christopher J Hasser, Brian D Hoffman, Paul Lilagan, Ian McDowall, Catherine J Mohr, John D Stern, Tao Zhao: Augmented stereoscopic visualization for a surgical robot. Intuitive Surgical, Patent Dept, Intuitive Surgical, October 29, 2009: US20090268015-A1

A robotic surgical system positions and holds an endoscope. A visible imaging system is coupled to the endoscope. The visible imaging system captures a visible image of tissue. An alternate imaging system is also coupled to the endoscope. The alternate imaging system captures a fluorescence image of ...


8
Brian Hoffman
Wenyi Zhao, Christopher J Hasser, Brian D Hoffman, Catherine J Mohr, John D Stern, Tao Zhao: Augmented stereoscopic visualization for a surgical robot using a captured fluorescence image and captured stereoscopic visible images. Intuitive Surgical, Patent Dept, Intuitive Surgical, October 29, 2009: US20090268010-A1

An illumination channel, a stereoscopic optical channel and another optical channel are held and positioned by a robotic surgical system. A first capture unit captures a stereoscopic visible image from the first light from the stereoscopic optical channel while a second capture unit captures a fluor ...


9
Louis B Rosenberg, Christopher J Hasser, Bruce M Schena, Mike D Levin: Haptic accelerator for force feedback computer peripherals. Immersion Corporation, James R Riegel, December 7, 1999: US05999168 (185 worldwide citation)

A force feedback interface including a haptic accelerator that relieves the computational burden associated with force feedback generation from a force feedback processor. The force feedback processor is preferably a device microprocessor included in the interface device and separate from a controll ...


10
Christopher J Hasser, Marvin R Roark: Tactile graphics display. The United States of America represented by the Secretary of the Air Force, Gerald B Hollins, Thomas L Kundert, April 7, 1998: US05736978 (151 worldwide citation)

A method for communicating graphic data such as plotted two-dimensional curves to a user such as a sight impaired person is disclosed. The disclosed arrangement uses haptic or tactile stimulation of a user's extremity such as is relied--upon in the Braille code fingertip communication already known ...



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