Patents by Inventor Paul Lapstun

Paul Lapstun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10846558
    Abstract: A scanning camera for capturing a set of images along a curved scan path on an object plane within an area of interest, each image of the set of images associated with a viewing angle and a viewing direction relative to the object plane, the scanning camera comprising an image sensor; a lens; a scanning mirror; and a drive coupled to the scanning mirror; wherein the drive is operative to rotate the scanning mirror about a spin axis according to a spin angle; the spin axis is tilted relative to a camera optical axis; the scanning mirror is tilted relative to both the camera optical axis and the spin axis and positioned to reflect an imaging beam into the lens, a viewing angle and a viewing direction of the imaging beam relative to the object plane varying with the spin angle; the lens is positioned to focus the imaging beam onto the image sensor; and the image sensor is operative to capture each image by sampling the imaging beam at a value of the spin angle corresponding to the viewing angle and the viewing d
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: November 24, 2020
    Assignee: Vergent Research Pty Ltd
    Inventor: Paul Lapstun
  • Patent number: 10848654
    Abstract: A scanning camera for capturing a set of oblique images along a curved scan path on an object plane within an area of interest, each image of the set of images associated with a viewing angle and a viewing direction relative to the object plane, the scanning camera comprising an image sensor; a lens; a scanning mirror; and a drive coupled to the scanning mirror; wherein the drive is operative to rotate the scanning mirror about a spin axis according to a spin angle; the spin axis is tilted relative to a camera optical axis; the scanning mirror is tilted relative to both the camera optical axis and the spin axis and positioned to reflect an imaging beam into the lens, a viewing angle and a viewing direction of the imaging beam relative to the object plane varying with the spin angle; the camera optical axis is tilted at an oblique angle relative to the object plane; the lens is positioned to focus the imaging beam onto the image sensor; and the image sensor is operative to capture each image by sampling the im
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: November 24, 2020
    Assignee: Vergent Research Pty Ltd
    Inventor: Paul Lapstun
  • Patent number: 10733924
    Abstract: A method of displaying a light field via a light field display device, the light field display device comprising an array of light field display elements, the method comprising the steps of: (a) estimating a gaze direction, and thereby a foveal field of view, of at least one eye of at least one viewer of the light field display device; (b) displaying, via each display element and at a first angular sampling rate, at least part of a light field view image; and (c) displaying, via at least one of the display elements and at a second angular sampling rate, a partial foveal light field view image, the partial foveal light field view image covering at least part of the foveal field of view of the at least one eye, the second angular sampling rate higher than the first angular sampling rate.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: August 4, 2020
    Inventor: Paul Lapstun
  • Publication number: 20200191568
    Abstract: A method for capturing a multi-view set of images of an area of interest, the multi-view set of images comprising, for each of a plurality of points within the area of interest, at least one nadir image and at least four oblique images from four substantially different viewing directions, the method comprising moving a dual-scan scanning camera along a survey path above the area of interest, and capturing, within selected intervals along the survey path and using the dual-scan scanning camera, subsets of the multi-view set of images of the area of interest along pairs of opposed non-linear scan paths.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventor: Paul Lapstun
  • Publication number: 20200193214
    Abstract: A scanning camera for capturing a set of images along a curved scan path within an area of interest, the scanning camera comprising: an image sensor; a lens; a scanning mirror; and a drive coupled to the scanning mirror; wherein the drive is operative to rotate the scanning mirror about a spin axis according to a spin angle; the spin axis is tilted relative to a camera optical axis; the scanning mirror is tilted relative to the camera optical axis and positioned to reflect an imaging beam into the lens; the lens is positioned to focus the imaging beam onto the image sensor; and the image sensor is operative to capture each image by sampling the imaging beam at a corresponding spin angle.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventor: Paul Lapstun
  • Publication number: 20200195813
    Abstract: A scanning camera for capturing a set of oblique images along a curved scan path within an area of interest, the scanning camera comprising an image sensor; a lens; a scanning mirror; and a drive coupled to the scanning mirror; wherein the drive is operative to rotate the scanning mirror about a spin axis according to a spin angle; the spin axis is tilted relative to a camera optical axis; the scanning mirror is tilted relative to the camera optical axis and positioned to reflect an imaging beam into the lens; the camera optical axis is tilted at an oblique angle relative to an object plane within the area of interest; the lens is positioned to focus the imaging beam onto the image sensor; and the image sensor is operative to capture each image by sampling the imaging beam at a corresponding spin angle.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventor: Paul Lapstun
  • Publication number: 20200154099
    Abstract: A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
    Type: Application
    Filed: January 11, 2020
    Publication date: May 14, 2020
    Inventor: Paul Lapstun
  • Patent number: 10560689
    Abstract: A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 11, 2020
    Inventor: Paul Lapstun
  • Publication number: 20200012090
    Abstract: A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventor: Paul Lapstun
  • Patent number: 10432919
    Abstract: A light field display device comprising at least one multiplexed light field display module, the multiplexed light field display module comprising a view image generator, a waveguide, and a set of shutters spatially distributed along the waveguide, the view image generator optically coupled to the waveguide, the waveguide optically coupled to each shutter, the view image generator operable to generate a set of beams of light from one of a set of view images, the waveguide configured to transmit the set of beams along its length via internal reflection, each shutter operable to be switched between a closed state and an open state, the closed state of the shutter configured to prevent the beams from escaping the waveguide, the open state of the shutter configured to allow the beams to escape the waveguide, the module operable to generate, over time, the set of beams from a different one of the set of view images, and to open, over time, a different subset of the set of shutters, thereby to allow the set of beam
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 1, 2019
    Inventor: Paul Lapstun
  • Patent number: 10429639
    Abstract: A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 1, 2019
    Inventor: Paul Lapstun
  • Publication number: 20190259319
    Abstract: A virtual window system, the system comprising a light field camera device and a light field display device arranged back-to-back, the light field camera device configured to capture an input light field video stream, the light field display device configured to display an output light field video stream based on the input light field video stream.
    Type: Application
    Filed: May 5, 2019
    Publication date: August 22, 2019
    Inventor: Paul Lapstun
  • Publication number: 20190259320
    Abstract: A virtual window system, the system comprising a light field camera device and a light field display device arranged back-to-back, the light field camera device configured to capture an input light field video stream, the light field display device configured to display an output light field video stream based on the input light field video stream.
    Type: Application
    Filed: May 5, 2019
    Publication date: August 22, 2019
    Inventor: Paul Lapstun
  • Patent number: 10311768
    Abstract: A virtual window system, the system comprising a light field camera device and a light field display device arranged back-to-back, the light field camera device configured to capture an input light field video stream, the light field display device configured to display an output light field video stream based on the input light field video stream.
    Type: Grant
    Filed: January 25, 2015
    Date of Patent: June 4, 2019
    Inventor: Paul Lapstun
  • Publication number: 20190166359
    Abstract: A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
    Type: Application
    Filed: February 9, 2018
    Publication date: May 30, 2019
    Inventor: Paul Lapstun
  • Publication number: 20190162950
    Abstract: A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventor: Paul Lapstun
  • Patent number: 10008141
    Abstract: The present invention provides a light field display device (300) comprising an array of light field display elements (310) populating a display surface, each display element (310) comprising: a beam generator (522) for generating an output beam of light; a radiance modulator (524) for modulating the radiance of the beam over time; a focus modulator (530) for modulating the focus of the beam over time; and a scanner (504, 506) for scanning the beam across a two-dimensional angular field.
    Type: Grant
    Filed: September 17, 2016
    Date of Patent: June 26, 2018
    Inventor: Paul Lapstun
  • Patent number: 9965982
    Abstract: A near-eye light field display device for displaying a light field to at least one eye of a viewer, the device comprising an array of light field display elements, each display element adapted to display a time-varying light field view image, the display device configured to modulate the focus of the time-varying view image displayed by each display element according to a time-varying fixation depth of the at least one eye.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 8, 2018
    Inventor: Paul Lapstun
  • Publication number: 20180084245
    Abstract: A light field display device comprising at least one multiplexed light field display module, the multiplexed light field display module comprising a view image generator, a waveguide, and a set of shutters spatially distributed along the waveguide, the view image generator optically coupled to the waveguide, the waveguide optically coupled to each shutter, the view image generator operable to generate a set of beams of light from one of a set of view images, the waveguide configured to transmit the set of beams along its length via internal reflection, each shutter operable to be switched between a closed state and an open state, the closed state of the shutter configured to prevent the beams from escaping the waveguide, the open state of the shutter configured to allow the beams to escape the waveguide, the module operable to generate, over time, the set of beams from a different one of the set of view images, and to open, over time, a different subset of the set of shutters, thereby to allow the set of beam
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventor: Paul Lapstun
  • Patent number: 9860522
    Abstract: A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
    Type: Grant
    Filed: January 31, 2016
    Date of Patent: January 2, 2018
    Inventor: Paul Lapstun