University of Illinois

Motorola Solutions, Inc.

Deutschetelekom Ag

Klara Nahrstedt

Whay Chiou Lee

Cheng-Hsin Hsu

Roy H Campbell

Wenbo He

Shu Shi

Ying Huang

A method for encoding video for streaming includes receiving a plurality of sequential image frames generated by a 3D graphics rendering engine. Graphics rendering contexts are obtained, including pixel depth map, rendering camera parameters, and camera motion from the 3D rendering engine. The method next entails selecting key frames among the plurality of sequential image frames, interpolating non-key frames via 3D image warping, and encoding all key frames and warping residues of non-key frames. The system is implementable on a server linked to a mobile user device for receiving the encoded frame data. The mobile user device is configured to decode the encoded frame data and display a corresponding image to a user of the mobile user device.

Real-time video coding using graphics rendering contexts

A method and apparatus for alerting nodes of a malicious node in a mobile ad-hoc communication system is provided herein. Particularly, a method and apparatus for distributing an alert message to nodes surrounding a recently discovered malicious node is provided. This alert technique further leverages mobility to distribute the alert message to a large majority of nodes in the ad hoc wireless network within a reasonable amount of time.

Method and apparatus for alerting nodes of a malicious node in a mobile ad-hoc communication system

Growing community of inventors

Savoy, IL, United States of America

Klara Nahrstedt