Microsoft Technology Licensing, LLC

Barry L Brumitt

John Charles Krumm

Brian R Meyers

Kentaro Toyama

Richard S Bailey

Michael E Tipping

Mark Andrew Hatton

Steven A N Shafer

Stephen C Harris

Reverberation parameters for one or more positions of interest are derived from graphics data used for displaying a computer-generated environment. For each position of interest for which reverberation parameters are desired, environmental parameters including distances and the hardness of features in a range of interest and at points on cubemap faces are automatically determined from the graphics data. The environmental parameters are stored with the graphics data and associated with each position of interest. Upon rendering of the computer-generated environment, reverberation property set values usable by a reverberation engine are calculated or interpolated between predetermined values according to the environmental parameters. Thus, values such as reverb, reverb delay, reflections, decay time, reflection delay, and other reverb parameters are automatically calculated, subject to selective operator tuning, and provide realistic reverberation effects in the sounds heard by a user who is experiencing the rendered environment.

Method and system for automatically generating world environment reverberation from a game geometry

A learning controller overcomes tuning problems in vehicle simulation programs by estimating requisite vehicle-specific parameters, effectively learning from its mistakes, as the vehicle is automatically driven around a track. After a sufficient period of calibration, the learned parameters are automatically saved to a car-specific file. The file parameters may be loaded in the controller in the future to optimally control a vehicle without the need to re-run the learning procedure.

Learning controller for vehicle control

Method and system for automatically generating world environmental reverberation from game geometry

An image background maintenance system and method for maintaining a background model of an image sequence by processing on multiple spatial scales. These multiple spatial scales include a pixel scale, a regional scale and a frame scale. The image sequence undergoes pixel processing that determines a current background model and provides an initial pixel assignment as either a background or a foreground pixel. Region processing further refines the initial pixel assignments by considering relationships between pixels and possibly reassigning pixels. Frame processing further refines the current background model by determining whether a substantial change has occurred in the actual background and, if so, providing a more accurate background model.

Background maintenance of an image sequence

The present invention is embodied in a system and method for maintaining a background model of an image sequence by processing on multiple spatial scales. These multiple spatial scales include a pixel scale, a regional scale and a frame scale. The image sequence undergoes pixel processing that determines a current background model and provides an initial pixel assignment as either a background or a foreground pixel. Region processing further refines the initial pixel assignments by considering relationships between pixels and possibly reassigning pixels. Frame processing further refines the current background model by determining whether a substantial change has occurred in the actual background and, if so, providing a more accurate background model.

System and method for background maintenance of an image sequence

A system and process for automatically initiating and terminating associations between a computer input device of some type (e.g., computer mice, keyboards, trackballs, and the like) and a computer in a computing space that can have many such devices and several computers. In this way, input devices can be used to interface with any of the computers in the space. For instance, a user could move about a room filled with computers and their respective computer monitors, with a wireless mouse, and interface with the various computers using the mouse. To this end, the aforementioned association entails redirecting signals generated by a computer input device from one computing device in a computing space to another computing device in the space. The association is either initiated or terminated depending on whether sets of preconditions have been satisfied. These preconditions can be tied to any event or combination of events desired, and a set of preconditions can include any number of preconditions, even just one. In general, the preconditions will fall in two categories&mdash;namely proximity-related preconditions and nonproximity-related preconditions. Proximity-related initiating preconditions as the name implies involve a requirement that the input devices are relatively near a computer or a display device connected to the computer for an association to be initiated. Conversely, if the input device and computer are too far apart, proximity-related terminating preconditions would dictate that any association be terminated. Nonproximity-related preconditions can concern such things as ambient conditions (e.g., illumination), device states, pre-existing associations, and device incompatibility.

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Seattle, WA, United States of America

Barry L Brumitt