Microsoft Technology Licensing, LLC

Magic Leap, Inc.

Federico Schliemann

Donald D Karlov

Sam J George

Wenbo Zhang

Gilles Khouzam

Victor Ng-Thow-Hing

Tomislav Pejsa

Francisco Lopez-Fresquet

Mike Harsh

Michael John Hillberg

Gurpratap Virdi

Eldar Azerovich Musayev

Michael R Harsh

Akshay Johar

Lawrence Wayne Olson

John Gossman

Christian Klein

Mark D Schwesinger

Greg D Schechter

Serge Smirnov

Sergio Paolantonio

Jay P Kapur

Weibing Zhan

Emily M Yang

Greg D Schechler

Serge Smimov

Examples of systems and methods for improved hand tracking of a user in a mixed reality environment are disclosed. The systems and methods may be configured to estimate the hand pose and shape of a user's hands for applications such as animating a hand on a user's avatar. Data from multiple sources, such as a totem internal measurement unit ('IMU'), external totem location tracking, vision cameras, and depth sensors, may be manipulated using a set of rules that are based on historical data, ergonomics data, and motion data.

Multi-modal hand location and orientation for avatar movement

A system for video playback switching in response to changing network conditions. The system includes streaming, from a distribution device such as a server, respective index files for a low bit rate version and a high bit rate version of the video file, to remotely executing instantiations of a low bit rate media player and a high bit rate media. Playback of the video file is begun by the high bit rate media player receiving and playing the high bit rate version from the server. Upon an indication of impeded network conditions, a transition point is selected, wherein the transition point indicates where downloading of the high bit rate version stops and where downloading of the low bit rate version begins. The low bit rate media player is then positioned to begin playback at the transition point. The stream of the video file is then switched to the low bit rate player upon encountering the transition point.

System for adaptive video switching for variable network conditions

Described is a technology by which code, such as an untrusted web application hosted in a browser, provides content through an interface for playback by an application environment, such as an application environment running in a browser plug-in. Content may be in the form of elementary video, audio and/or script streams. The content is in a container that is unpackaged by the application code, whereby the content may be packaged in any format that the application understands, and/or or come from any source from which the application can download the container. An application environment component such as a platform-level media element receives information from an application that informs the application environment that the application is to provide media stream data for playback. The application environment requests media stream data (e.g., samples) from the application, receives them as processed by the application, and provides the requested media stream data for playback.

Media streams from containers processed by hosted code

A method for video playback switching in response to changing network conditions. The method includes accessing a server to retrieve respective index files for a low bit rate version and a high bit rate version of the video file, and instantiating a low bit rate media player and a high bit rate media. Playback of the video file is begun by the high bit rate media player streaming the high bit rate version from the server. Upon an indication of impeded network conditions, a transition point is selected, wherein the transition point indicates where downloading of the high bit rate version stops and where downloading of the low bit rate version begins. The low bit rate media player is then positioned to begin playback at the transition point. Playback of the video file is then switched to the low bit rate player upon encountering the transition point.

Adaptive video switching for variable network conditions

Display screen with animated graphical user interface

Growing community of inventors

Redmond, WA, United States of America

Federico Schliemann