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Ian Mcdowall

Ian Mcdowall, Woodside, CA US

Patent application numberDescriptionPublished
20080297593Rendering for an Interactive 360 Degree Light Field Display - An interactive, autostereoscopic system for displaying an object in 3D includes a mirror configured to spin around a vertical axis when actuated by a motor, a high speed video projector, and a processing system including a graphics card interfaced to the video projector. An anisotropic reflector is bonded onto an inclined surface of the mirror. The video projector projects video signals of the object from the projector onto the inclined surface of the mirror while the mirror is spinning, so that light rays representing the video signals are redirected toward a field of view of a 360 degree range. The processing system renders the redirected light rays so as to interactively generate a horizontal-parallax 3D display of the object. Vertical parallax can be included in the display by adjusting vertically the displayed views of the object, in response to tracking of viewer motion by a tracking system.12-04-2008
20090052838Electrically controlled optical elements and method - The configuration of an optical system can be electronically controlled using switchable wave plates in conjunction with polarized light.02-26-2009
20090268015AUGMENTED STEREOSCOPIC VISUALIZATION FOR A SURGICAL ROBOT - 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 at least a portion of the tissue. A stereoscopic video display system is coupled to the visible imaging system and to the alternate imaging system. The stereoscopic video display system outputs a real-time stereoscopic image comprising a three-dimensional presentation of a blend of a fluorescence image associated with the captured fluorescence image, and the visible image.10-29-2009
20090270678AUGMENTED STEREOSCOPIC VISUALIZATION FOR A SURGICAL ROBOT USING TIME DUPLEXING - 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 first image and the second image includes a combination of a fluorescence image and a visible image. The other of the first image and the second image is a visible image. An intelligent image processing system generates an artificial fluorescence image using the captured fluorescence image. An augmented stereoscopic display system outputs an augmented stereoscopic image of at least a portion of the tissue comprising the artificial fluorescence image.10-29-2009
20100104018SYSTEM, METHOD AND COMPUTER-ACCESSIBLE MEDIUM FOR PROVIDING BODY SIGNATURE RECOGNITION - Provided and described herein are, e.g., exemplary embodiments of systems, methods, procedures, devices, computer-accessible media, computing arrangements and processing arrangements in accordance with the present disclosure related to body signature recognition and acoustic speaker verification utilizing body language features. For example, certain exemplary embodiments can include a computer-accessible medium containing executable instructions thereon. When one or more computing arrangements executes the instructions, the computing arrangement(s) can be configured to perform certain exemplary procedures, including (i) receiving first information relating to one or more visual features from a video, (ii) determining second information relating to motion vectors as a function of the first information, and (iii) computing a statistical representation of a plurality of frames of the video based on the second information. Further, the computing arrangement(s) can be configured to provide the statistical representation to a display device and/or recording the statistical representation on a computer-accessible medium, for example.04-29-2010
20100250000OPTIC FIBER CONNECTION FOR A FORCE SENSING INSTRUMENT - In one embodiment, a surgical instrument includes a housing linkable with a manipulator arm of a robotic surgical system, a shaft operably coupled to the housing, a force transducer on a distal end of the shaft, and a plurality of fiber optic strain gauges on the force transducer. In one example, the plurality of strain gauges are operably coupled to a fiber optic splitter or an arrayed waveguide grating (AWG) multiplexer. A fiber optic connector is operably coupled to the fiber optic splitter or the AWG multiplexer. A wrist joint is operably coupled to a distal end of the force transducer, and an end effector is operably coupled to the wrist joint. In another embodiment, a robotic surgical manipulator includes a base link operably coupled to a distal end of a manipulator positioning system, and a distal link movably coupled to the base link, wherein the distal link includes an instrument interface and a fiber optic connector optically linkable to a surgical instrument. A method of passing data between an instrument and a manipulator via optical connectors is also provided.09-30-2010
20110082369METHODS AND APPARATUS FOR DISPLAYING ENHANCED IMAGING DATA ON A CLINICAL IMAGE - In one embodiment of the invention, an apparatus includes a display device. The display device displays a desaturated image of tissue captured in the visible electro-magnetic (EM) spectrum from a body cavity; and a first color enhanced image combined with the desaturated image. The first color enhanced image represents the first data captured from the body cavity outside the visible electromagnetic spectrum. The relative brightness between the desaturated image and the first color enhanced image is set to emphasize the first data over the tissue captured in the visible electromagnetic spectrum to provide improved information content.04-07-2011

Patent applications by Ian Mcdowall, Woodside, CA US

Ian Mcdowall, Cambridge GB

Patent application numberDescriptionPublished
20100144274Systems, Methods, and Apparatuses for Determining Proximity Between Computing Apparatuses - Methods, apparatuses, and systems are provided for determining proximity between computing apparatuses. A method may include extracting information indicating a transmit signal strength from each of a plurality of electromagnetic transmissions sent by a plurality of second computing apparatuses and received by a first computing apparatus. The method may further include determining received signal strengths of the electromagnetic transmissions. The method may additionally include determining proximities between the first computing apparatus and each of the second computing apparatuses based at least in part upon transmit signal strengths and the received signal strengths. The method may also include generating a list listing the second computing apparatuses and providing an indication of the determined proximities of the second computing apparatuses. Corresponding apparatuses and systems are also provided.06-10-2010
20100146070FILTERING TRANSFERRED DATA - A data transfer client device comprising: memory for storing at least one dataset comprising a plurality of data fields and at least one filter definition comprising data defining which of the data fields can be accessed by a particular server; an interface for communicating with a data transfer server, whereby a data transfer server can access a dataset stored in the memory; and a data transfer controller for policing access during a data transfer operation by a data transfer server to the data fields, the data transfer controller being arranged to determine in dependence on the filter definition whether the data transfer server can access particular data fields and to deny the server access to those data fields to which the data transfer controller determines that the data transfer server cannot have access.06-10-2010
20100211685PAIRING EXCHANGE - A computing device capable of communicating over multiple types of communication channel pairing data for use with a further type of communication channel, the device being arranged to communicate pairing data with another device in response to a pairing stimulus and to communicate that pairing data over each of said multiple types of communication channel.08-19-2010
20100250490Field Filtering - A computing device capable of storing at least one set of data and communicating at least one stored set of data to another device during a data synchronisation operation, the computing device being arranged to determine that a stored data set includes filtered data that is not to be communicated to the other device during a data synchronisation operation, form synchronisation data from the stored data set by substituting the filtered data with an indicator, the indicator being such as to indicate the filtered data to the other device and communicate the synchronisation data to the other device during the data synchronisation operation.09-30-2010

Ian Mcdowall, Mountain View, CA US

Patent application numberDescriptionPublished
20090185030Multi-Person Stereo Display System - The multi-person stereo display system permits several independent viewers to see different stereo images on a single projection surface. This is accomplished through the innovative use of video multiplexing, software, control electronics, and special viewing glasses. The system is particularly useful in situations where the viewers see computer generated images from their own independent perspectives.07-23-2009
20100002288Electrically Controlled Optical Elements and Method - The effective focal length of an optical system can be electronically controlled using switchable wave plates in conjunction with polarized light.01-07-2010
20100067573Interface for Fast Pattern Projection - A method for projecting sequences of images from a standard digital source by packing the binary bit planes of an image is conveyed. The method enables 24× frame rates from a standard source using standard electrical interfaces.03-18-2010

Patent applications by Ian Mcdowall, Mountain View, CA US