Christie Digital Systems Usa, Inc.

Google Inc.

Kevin R Moule

Derek Scott

Nick Wasilka

Daniel Thomson Urquhart

James Alexander Robinson

Peter Anthony Van Eerd

Jean-François Roy

Roy Anthony

Maxwell Elendt

Nicholas Deakin

Derek Bulner

Chetan Kakkar

Robert Fraser

Ian James Fraser

Idris S Aleem

Sui Tong Tang

Eliezer Azi Ben-Lavi

Kevin Robertson Wright

Ian Chadwyck Faragher

Nicholas Jankovic

Ryan Thomas Morris

Andrew Douglas Dennison

Charles Peter Harland

Lukas Rezek

Samuel Jewell Lochner

Ehsan Parvizi

A graphics pipeline cache reconstruction operation is implemented to reconstruct one or more graphics pipeline caches for a current client gaming session based on one or more pipeline structures. The pipeline structures each represent a graphical object rendered during a respective previous client gaming session and are used to reconstruct one or more graphics pipeline caches that include graphics pipeline cache objects related to the graphical objects of the pipeline structures. These graphics pipeline cache objects are used to initialize one or more graphics pipelines used to render the graphical objects in a gaming application for a current client gaming session.

Creating secure pipeline cache objects using differential privacy techniques

Systems and methods for fitting a wearable heads-up display (WHUD) to a subject are described. Imaging data representative of at least a portion of the subject's head with one or more gaze positions of the eyes is obtained from a plurality of cameras. One or more models representative of the subject's head are generated and a set of features is recognized in the one or more models. One or more models of the WHUD are also obtained based on WHUD data stored in memory. One or more simulations are performed positioning one or more WHUD models in proximity to at least one subject model based at least in part on the set of features recognized in the subject model. A fit of a WHUD to the subject is evaluated based at least in part on a determination regarding whether the simulation satisfies one or more of a set of criteria.

Methods and systems for fitting heads-up display to user

A system and method for automatic alignment and projection mapping are provided. A projector and at least two cameras are mounted with fields of view that overlap a projection area on a three-dimensional environment. A computing device: controls the projector to project structured light patterns that uniquely illuminate portions of the environment; acquires images of the patterns from the cameras; generates a two-dimensional mapping of the portions between projector and camera space and by processing the images and correlated patterns; generates a cloud of points representing the environment using the mapping and camera positions; determines a projector location, orientation and lens characteristics from the cloud; positions a virtual camera relative to a virtual three-dimensional environment, corresponding to the environment, parameters of the virtual camera respectively matching parameters of the projector; and, controls the projector to project based on a virtual location, orientation and characteristics of the virtual camera.

System and method for automatic alignment and projection mapping

A system and method for geometric warping correction in projection mapping is provided. A lower resolution mesh is applied to A mesh model, at least in a region of the mesh model misaligned with a corresponding region of a real-world object. One or more points of the lower resolution mesh are moved. In response, one or more corresponding points of the mesh model are moved to increase alignment between the region of the mesh model and the corresponding region of the real-world object. An updated mesh model is stored in a memory. And one or more projectors are controlled to projection map images corresponding to the updated mesh model onto the real-world object.

System and method for geometric warping correction in projection mapping

A system and method for digital black level blending is provided. The system comprises: projectors located to project respective projector images overlapping in overlap regions; at least one sensor configured to acquire digital images of at least portions of the plurality of projector images; and a computing device configured to, for each given projector: determine, using the at least one sensor, respective correspondences between projected points of a given projector image and respective points of respective image modulators of other projectors of the projectors, the correspondences representing the respective points of the respective image modulators of the other projectors that correspond to overlap regions; determine respective brightness of the overlap regions; and, control pixels of an image modulator of the projector, and each of the respective image modulators, at least adjacent edge pixels corresponding to overlap region edges, to increase brightness in corresponding projector image regions using the respective brightness.

System and method for digital black level blending

A projector and at least two cameras are mounted with fields of view that overlap a projection area on a three-dimensional environment. A computing device: controls the projector to project structured light patterns that uniquely illuminate portions of the environment; acquires images of the patterns from the cameras; generates a two-dimensional mapping of the portions between projector and camera space and by processing the images and correlated patterns; generates a cloud of points representing the environment using the mapping and camera positions; determines a projector location, orientation and lens characteristics from the cloud; positions a virtual camera relative to a virtual three-dimensional environment, corresponding to the environment, parameters of the virtual camera respectively matching parameters of the projector; and, controls the projector to project based on a virtual location, orientation and characteristics of the virtual camera.

A method, system, and a computer readable medium for screen correction is provided. The system includes a memory storage unit for storing model content, a screen having screen parameters, an input device for receiving the screen parameters, a correction engine, and a projector. The method involves storing model content on a memory storage unit, receiving screen parameters, generating screen content, and projection at least a portion of the screen content onto the screen. The computer readable medium encoded with codes for directing a processor to carry out the method.

Method and system for screen correction

A system and method for advanced lens geometry fitting is provided for projecting images using a projector with a non-planar lens. An initial estimate of intrinsic parameters of the projector can be determined, for example from a list; an initial estimate of extrinsic parameters of the projector can be determined based on the initial estimate of intrinsic parameters. The intrinsic parameters and extrinsic parameters can be optimized together by starting with a simple lens model and iteratively adding nonlinear terms, an error function evaluated at each iteration, for example for each set of intrinsic parameters in the list and the corresponding extrinsic parameters. As the values of the error function converges the optimized intrinsic parameters and the optimized extrinsic parameters can be used to generate images that are projected by the projector.

System and method for advanced lens geometry fitting for imaging devices

A method, system and apparatus for determining locations in a projected image are provided. The apparatus comprises a light sensor; a body comprising the light sensor, the body enabled to position the light sensor proximal to a screen to detect light from a projector; a communication interface for communicating with a projector system comprising at least the projector; and, a processor enabled to transmit a request to the projector system to project a structured light pattern using the projector; and when at least one pixel in the structured light pattern projected by the projector is detected at the light sensor, transmit a detection indication to the projector system to communicate detection of the at least one pixel.

Method, system and apparatus for determining locations in a projected image

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Kitchener, Canada

Kevin R Moule