Abstract: A user device within a communication architecture, the user device comprising: an image capture device configured to determine image data for the creation of a video channel defining the shared scene; an intrinsic/extrinsic data determiner configured to determine intrinsic/extrinsic capture device data associated with the image capture device; and a video encoder configured to encode the image data and intrinsic/extrinsic capture device data within the video channel.

Abstract: A head-mounted display includes a visible-light camera configured to collect a visible-light image of a physical space, a surface sensor configured to measure one or more surface parameters of the physical space, a see-through display configured to visually present an augmentation image while light from the physical space passes through the see-through display to a user eye, and an augmented-reality engine. The augmented-reality engine may be configured to identify a surface of the physical space from the one or more measured surface parameters, compose a mixed-reality image that includes the augmentation image overlaid on the visible-light image, and visually present, via the see-through display, the mixed-reality image in alignment with the identified surface.

Abstract: A head-mounted display includes a visible-light camera configured to collect a visible-light image of a physical space, a surface sensor configured to measure one or more surface parameters of the physical space, a see-through display configured to visually present an augmentation image while light from the physical space passes through the see-through display to a user eye, and an augmented-reality engine. The augmented-reality engine may be configured to identify a surface of the physical space from the one or more measured surface parameters, compose a mixed-reality image that includes the augmentation image overlaid on the visible-light image, and visually present, via the see-through display, the mixed-reality image in alignment with the identified surface.

Abstract: A user device has a display, a user interface and a network interface. The network interface receive a video data stream from another user interface. A user of the user device is able to pause the video stream. The paused image of the video stream and the video stream are both displayed on the display. The user is able to annotate the paused image.

Abstract: A user device within a communication architecture, the user device comprising: an image capture device configured to determine image data for the creation of a video channel defining the shared scene; an intrinsic/extrinsic data determiner configured to determine intrinsic/extrinsic capture device data associated with the image capture device; and a video encoder configured to encode the image data and intrinsic/extrinsic capture device data within the video channel.

Abstract: A user device has a display, a user interface and a network interface. The network interface receive a video data stream from another user interface. A user of the user device is able to pause the video stream. The paused image of the video stream and the video stream are both displayed on the display. The user is able to annotate the paused image.

Abstract: Systems and methods for building and/or simplifying structured-document path-language expressions are described. One of these systems or methods enables a user to graphically select structured-document path-language functions and addresses. With these addresses and functions, a structured-document path-language expression can be built without a user having to fully understand or type in syntax for the expression. Another of these systems or methods simplifies structured-document path-language address and function syntax. This simplification can aid a user in building and easily understanding a structured-document path-language expression.

Abstract: Systems and methods for building and/or simplifying structured-document path-language expressions are described. One of these systems or methods enables a user to graphically select structured-document path-language functions and addresses. With these addresses and functions, a structured-document path-language expression can be built without a user having to fully understand or type in syntax for the expression. Another of these systems or methods simplifies structured-document path-language address and function syntax. This simplification can aid a user in building and easily understanding a structured-document path-language expression.