Microsoft Technology Licensing, LLC

Joel Stephen Pritchett

Rod G Fleck

Darko Kirovski

Hugues Herve Hoppe

Andreas Georg Nowatzyk

Michalis Raptis

Chuck Noble

A near-eye display system includes a see-through display, an image source, a background light sensor, a selective background occluder including a first liquid crystal panel and a second liquid crystal panel positioned between a pair of polarizers, and a computing device including instructions executable by a logic subsystem to determine a shape and a position of an occlusion area based upon a virtual object to be displayed, obtain a first and a second birefringence pattern for the first and the second liquid crystal panels, produce the occlusion area by applying the birefringence patterns to the liquid crystal panels, and display the virtual object in a location visually overlapping with the occlusion area.

Selective occlusion system for augmented reality devices

A method for thread-safe development of a computer program configured for parallel thread execution comprises maintaining a digital record of read or write access to a data object from each of a plurality of sibling threads executing on a computer system. Pursuant to each instance of read or write access from a given sibling thread, an entry comprising an indicator of the access type is added to the digital record. The method further comprises assessing the thread safety of the read or write access corresponding to each entry in the digital record and identifying one or more thread-unsafe instances of read or write access based on the assessment of thread safety.

Thread-safe development in a multi-threaded system

The present disclosure relates to systems, methods, and computer-readable media to efficiently render movable three-dimensional objects within a virtual space. For example, systems disclosed herein may identify a voxel representation of a three-dimensional unit that includes voxel volumes associated with bones from a bone structure of the three-dimensional unit. The systems described herein may further maintain a voxel index including pixel data mapped to corresponding bones and voxel volumes for use in rendering pixels of a pixel space. The systems described herein may utilize raytracing to render an identified voxel representation based on pixel data from the voxel index. The systems disclosed herein may significantly reduce expense of processing resource over conventional rendering methods that involve transforming thousands of vertices of three-dimensional mesh models.

Using bounding volume representations for raytracing dynamic units within a virtual space

Embodiments related to predictive cloud-based presimulation are described herein. For example, one disclose embodiment provides, on a computing device, a method comprising receiving an input of state from a client device and executing a server simulation of a digital experience based on the input of state, the server simulation configured to run concurrently with, and ahead of, a client simulation on the client device. The method further comprises generating a plurality of simulation results from the server simulation, selecting one or more simulation results from the plurality of simulation results based on a likelihood the client simulation will utilize a particular simulation result, and sending the one or more simulation results to the client device.

Predictive cloud-based presimulation

Human body motion is represented by a skeletal model derived from image data of a user. The model represents joints and bones and has a rigid body portion. The sets of body data are scaled to a predetermined number of sets for a number of periodic units. A body-based coordinate 3-D reference system having a frame of reference defined with respect to a position within the rigid body portion of the skeletal model is generated. The body-based coordinate 3-D reference system is independent of the camera's field of view. The scaled data and representation of relative motion within an orthogonal body-based 3-D reference system decreases the data and simplifies the calculations for determining motion thus enhancing real-time performance for multimedia applications controlled by a user's natural movements.

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Duvall, WA, United States of America

Joel Stephen Pritchett