Abstract: A system for generating a virtual gaming environment based on features identified within a real-world environment, and adapting the virtual gaming environment over time as the features identified within the real-world environment change is described. Utilizing the technology described, a person wearing a head-mounted display device (HMD) may walk around a real-world environment and play a virtual game that is adapted to that real-world environment. For example, the HMD may identify environmental features within a real-world environment such as five grassy areas and two cars, and then spawn virtual monsters based on the location and type of the environmental features identified. The location and type of the environmental features identified may vary depending on the particular real-world environment in which the HMD exists and therefore each virtual game may look different depending on the particular real-world environment.

Abstract: Methods for recognizing gestures using adaptive multi-sensor gesture recognition are described. In some embodiments, a gesture recognition system receives a plurality of sensor inputs from a plurality of sensor devices and a plurality of confidence thresholds associated with the plurality of sensor inputs. A confidence threshold specifies a minimum confidence value for which it is deemed that a particular gesture has occurred. Upon detection of a compensating event, such as excessive motion involving one of the plurality of sensor devices, the gesture recognition system may modify the plurality of confidence thresholds based on the compensating event. Subsequently, the gesture recognition system generates a multi-sensor confidence value based on whether at least a subset of the plurality of confidence thresholds has been satisfied. The gesture recognition system may also modify the plurality of confidence thresholds based on the plugging and unplugging of sensor inputs from the gesture recognition system.

Abstract: A system for generating a virtual gaming environment based on features identified within a real-world environment, and adapting the virtual gaming environment over time as the features identified within the real-world environment change is described. Utilizing the technology described, a person wearing a head-mounted display device (HMD) may walk around a real-world environment and play a virtual game that is adapted to that real-world environment. For example, the HMD may identify environmental features within a real-world environment such as five grassy areas and two cars, and then spawn virtual monsters based on the location and type of the environmental features identified. The location and type of the environmental features identified may vary depending on the particular real-world environment in which the HMD exists and therefore each virtual game may look different depending on the particular real-world environment.

Abstract: A system for generating a virtual gaming environment based on features identified within a real-world environment, and adapting the virtual gaming environment over time as the features identified within the real-world environment change is described. Utilizing the technology described, a person wearing a head-mounted display device (HMD) may walk around a real-world environment and play a virtual game that is adapted to that real-world environment. For example, the HMD may identify environmental features within a real-world environment such as five grassy areas and two cars, and then spawn virtual monsters based on the location and type of the environmental features identified. The location and type of the environmental features identified may vary depending on the particular real-world environment in which the HMD exists and therefore each virtual game may look different depending on the particular real-world environment.

Abstract: Technology is described for automatically determining placement of one or more interaction zones in an augmented reality environment in which one or more virtual features are added to a real environment. An interaction zone includes at least one virtual feature and is associated with a space within the augmented reality environment with boundaries of the space determined based on the one or more real environment features. A plurality of activation criteria may be available for an interaction zone and at least one may be selected based on at least one real environment feature. The technology also describes controlling activation of an interaction zone within the augmented reality environment. In some examples, at least some behavior of a virtual object is controlled by emergent behavior criteria which defines an action independently from a type of object in the real world environment.

Abstract: Technology is described for representing a physical location at a previous time period with three dimensional (3D) virtual data displayed by a near-eye, augmented reality display of a personal audiovisual (A/V) apparatus. The personal A/V apparatus is identified as being within the physical location, and one or more objects in a display field of view of the near-eye, augmented reality display are automatically identified based on a three dimensional mapping of objects in the physical location. User input, which may be natural user interface (NUI) input, indicates a previous time period, and one or more 3D virtual objects associated with the previous time period are displayed from a user perspective associated with the display field of view. An object may be erased from the display field of view, and a camera effect may be applied when changing between display fields of view.

Abstract: Techniques for facilitating interaction with an application in a motion capture system allow a person to easily begin interacting without manual setup. A depth camera system tracks a person in physical space and determines a probabilistic measure of the person's intent to engage of disengage with the application based on location, stance and movement. Absolute location in a field of view of the depth camera, and location relative to another person, can be evaluated. Stance can include facing a depth camera, indicating a willingness to interact. Movements can include moving toward or away from a central area in the physical space, walking through the field of view, and movements which occur while standing generally in one location, such as moving one's arms around, gesturing, or shifting weight from one foot to another.

Abstract: Technology is described for displaying a collision between objects by an augmented reality display device system. A collision between a real object and a virtual object is identified based on three dimensional space position data of the objects. At least one effect on at least one physical property of the real object is determined based on physical properties of the real object, like a change in surface shape, and physical interaction characteristics of the collision. Simulation image data is generated and displayed simulating the effect on the real object by the augmented reality display. Virtual objects under control of different executing applications can also interact with one another in collisions.

Abstract: Methods for recognizing gestures using adaptive multi-sensor gesture recognition are described. In some embodiments, a gesture recognition system receives a plurality of sensor inputs from a plurality of sensor devices and a plurality of confidence thresholds associated with the plurality of sensor inputs. A confidence threshold specifies a minimum confidence value for which it is deemed that a particular gesture has occurred. Upon detection of a compensating event, such as excessive motion involving one of the plurality of sensor devices, the gesture recognition system may modify the plurality of confidence thresholds based on the compensating event. Subsequently, the gesture recognition system generates a multi-sensor confidence value based on whether at least a subset of the plurality of confidence thresholds has been satisfied. The gesture recognition system may also modify the plurality of confidence thresholds based on the plugging and unplugging of sensor inputs from the gesture recognition system.

Abstract: A computing system runs an application (e.g., video game) that interacts with one or more actively engaged users. One or more physical properties of a group are sensed. The group may include the one or more actively engaged users and/or one or more entities not actively engaged with the application. The computing system will determine that the group (or the one or more entities not actively engaged with the application) have performed a predetermined action. A runtime condition of the application is changed in response to determining that the group (or the one or more entities not actively engaged with the computer based application) have performed the predetermined action. Examples of changing a runtime condition include moving an object, changing a score or changing an environmental condition of a video game.

Abstract: Technology is described for controlling a virtual object displayed by a near-eye, augmented reality display with a real controller device. User input data is received from a real controller device requesting an action to be performed by the virtual object. A user perspective of the virtual object being displayed by the near-eye, augmented reality display is determined. The user input data requesting the action to be performed by the virtual object is applied based on the user perspective, and the action is displayed from the user perspective. The virtual object to be controlled by the real controller device may be identified based on user input data which may be from a natural user interface (NUI). A user selected force feedback object may also be identified, and the identification may also be based on NUI input data.

Abstract: Methods for recognizing gestures using adaptive multi-sensor gesture recognition are described. In some embodiments, a gesture recognition system receives a plurality of sensor inputs from a plurality of sensor devices and a plurality of confidence thresholds associated with the plurality of sensor inputs. A confidence threshold specifies a minimum confidence value for which it is deemed that a particular gesture has occurred. Upon detection of a compensating event, such as excessive motion involving one of the plurality of sensor devices, the gesture recognition system may modify the plurality of confidence thresholds based on the compensating event. Subsequently, the gesture recognition system generates a multi-sensor confidence value based on whether at least a subset of the plurality of confidence thresholds has been satisfied. The gesture recognition system may also modify the plurality of confidence thresholds based on the plugging and unplugging of sensor inputs from the gesture recognition system.

Abstract: Methods for generating and displaying people-triggered holographic reminders are described. In some embodiments, a head-mounted display device (HMD) generates and displays an augmented reality environment to an end user of the HMD in which reminders associated with a particular person may be displayed if the particular person is within a field of view of the HMD or if the particular person is within a particular distance of the HMD. The particular person may be identified individually or identified as belonging to a particular group (e.g., a member of a group with a particular job title such as programmer or administrator). In some cases, a completion of a reminder may be automatically detected by applying speech recognition techniques (e.g., to identify key words, phrases, or names) to captured audio of a conversation occurring between the end user and the particular person.

Abstract: Technology is described for automatically determining placement of one or more interaction zones in an augmented reality environment in which one or more virtual features are added to a real environment. An interaction zone includes at least one virtual feature and is associated with a space within the augmented reality environment with boundaries of the space determined based on the one or more real environment features. A plurality of activation criteria may be available for an interaction zone and at least one may be selected based on at least one real environment feature. The technology also describes controlling activation of an interaction zone within the augmented reality environment. In some examples, at least some behavior of a virtual object is controlled by emergent behavior criteria which defines an action independently from a type of object in the real world environment.

Abstract: A system and method are disclosed for building and experiencing three-dimensional virtual objects from within a virtual environment in which they will be viewed upon completion. A virtual object may be created, edited and animated using a natural user interface while the object is displayed to the user in a three-dimensional virtual environment.

Abstract: Technology is described for controlling a virtual object displayed by a near-eye, augmented reality display with a real controller device. User input data is received from a real controller device requesting an action to be performed by the virtual object. A user perspective of the virtual object being displayed by the near-eye, augmented reality display is determined. The user input data requesting the action to be performed by the virtual object is applied based on the user perspective, and the action is displayed from the user perspective. The virtual object to be controlled by the real controller device may be identified based on user input data which may be from a natural user interface (NUI). A user selected force feedback object may also be identified, and the identification may also be based on NUI input data.

Abstract: Methods for recognizing gestures using adaptive multi-sensor gesture recognition are described. In some embodiments, a gesture recognition system receives a plurality of sensor inputs from a plurality of sensor devices and a plurality of confidence thresholds associated with the plurality of sensor inputs. A confidence threshold specifies a minimum confidence value for which it is deemed that a particular gesture has occurred. Upon detection of a compensating event, such as excessive motion involving one of the plurality of sensor devices, the gesture recognition system may modify the plurality of confidence thresholds based on the compensating event. Subsequently, the gesture recognition system generates a multi-sensor confidence value based on whether at least a subset of the plurality of confidence thresholds has been satisfied. The gesture recognition system may also modify the plurality of confidence thresholds based on the plugging and unplugging of sensor inputs from the gesture recognition system.

Abstract: A system for generating a virtual gaming environment based on features identified within a real-world environment, and adapting the virtual gaming environment over time as the features identified within the real-world environment change is described. Utilizing the technology described, a person wearing a head-mounted display device (HMD) may walk around a real-world environment and play a virtual game that is adapted to that real-world environment. For example, the HMD may identify environmental features within a real-world environment such as five grassy areas and two cars, and then spawn virtual monsters based on the location and type of the environmental features identified. The location and type of the environmental features identified may vary depending on the particular real-world environment in which the HMD exists and therefore each virtual game may look different depending on the particular real-world environment.

Abstract: Technology is described for displaying a collision between objects by an augmented reality display device system. A collision between a real object and a virtual object is identified based on three dimensional space position data of the objects. At least one effect on at least one physical property of the real object is determined based on physical properties of the real object, like a change in surface shape, and physical interaction characteristics of the collision. Simulation image data is generated and displayed simulating the effect on the real object by the augmented reality display. Virtual objects under control of different executing applications can also interact with one another in collisions.

Abstract: An audio and/or visual experience of a see-through head-mounted display (HMD) device, e.g., in the form of glasses, can be moved to target computing device such as a television, cell phone, or computer monitor to allow the user to seamlessly transition the content to the target computing device. For example, when the user enters a room in the home with a television, a movie which is playing on the HMD device can be transferred to the television and begin playing there without substantially interrupting the flow of the movie. The HMD device can inform the television of a network address for accessing the movie, for instance, and provide a current status in the form of a time stamp or packet identifier. Content can also be transferred in the reverse direction, to the HMD device. A transfer can occur based on location, preconfigured settings and user commands.