Abstract: A method and apparatus for displaying and interacting with a user interface are described. In one embodiment, the method comprises: receiving first content for display on a display surface, displaying the first content at a first area of the display surface, capturing a stroke when written on the display surface over a first portion of the first content, and automatically creating a first page at a second area of the display surface, the second area being different than the first area and displaying the first content with the captured stroke.

Abstract: A method and apparatus for associating strokes with content are described. In one embodiment, an apparatus comprises: a memory to store contexts for a plurality of strokes, wherein each context represents an association between at least one stroke and a portion of image data previously displayed; and a matching module coupled to the memory to: receive an indication of a new stroke to be associated a first image and a first context, determine if the portion the first context is the same as, overlaps or is independent of the contexts stored in the memory, and update the memory to include the new stroke by adding the new stroke to one of the contexts stored in the memory or storing the new stroke with the first context independent of the contexts already stored in the memory.

Abstract: Techniques for automatically selecting information to be displayed. The displayed information may be automatically and dynamically changed in response to changes in one or more preconfigured conditions.

Abstract: A system and method for determining positions in three-dimensional space are described. The system includes a controller, a phase image module, a presentation module and a phase determination module. The controller receives projector geometry parameters. A phase image module determines a plurality of sinusoidal images where a constant phase represents a flat plane in a three-dimensional space based on the projector geometry parameters. A presentation module projects the plurality of sinusoidal images to be captured by a camera. The phase determination module determines a phase value at a camera pixel. The phase determination module determines an intersection between the flat plane of the phase value and the camera pixel to identify a ray-plane intersection.

Abstract: A smart display detection system is disclosed. The smart display system is configured to allow mobile users to connect with display screens through mobile device cameras. The system can detect the display screens within images captured by the mobile device camera in real time by matching the camera query image with screen images dynamically updated from the display devices. A synchronized time-stamped matching strategy is applied to achieve high performance in detecting the screens playing motion intensive video contents and an aggressive feature selection method is applied to minimize the system uploading bandwidth. The system can accurately find display screens playing either static or dynamic content within an image captured on a mobile device.

Abstract: A method and apparatus for summarizing a session are described. In one embodiment, the system associates strokes with image data and comprises: a display surface; a memory coupled to the display surface to store stroke contexts for a plurality of strokes, wherein each stroke context represents an association between at least one stroke and a portion of image data previously displayed; a stroke capture module operable with the display surface and communicably coupled with the memory to capture one or more strokes written over image data presented on the display surface; and a summarization unit coupled to the memory to generate a summary of a session based on content displayed during the session containing one or more strokes made during the session.

Abstract: The disclosure includes a system and method for switching between video views and data views. The system includes a controller, a view presentation module, a screen detection module and a view switching module. The controller receives data indicating a participant joined a multi-user communication session. The view presentation module presents a video stream on a mobile device associated with the participant. The screen detection module determines an occurrence of a detection trigger event. The controller receives a video frame image responsive to the occurrence of the detection trigger event. The screen detection module detects a data screen in the video frame image. The view switching module switches a view on the mobile device from video view to data view responsive to a natural gesture performed by the participant. The view presentation module presents a data stream associated with the data screen on the mobile device.

Abstract: The disclosure includes a system and method for switching between video views and data views. The system includes a controller, a view presentation module, a screen detection module and a view switching module. The controller receives data indicating a participant joined a multi-user communication session. The view presentation module presents a video stream on a mobile device associated with the participant. The screen detection module determines an occurrence of a detection trigger event. The controller receives a video frame image responsive to the occurrence of the detection trigger event. The screen detection module detects a data screen in the video frame image. The view switching module switches a view on the mobile device from video view to data view responsive to a natural gesture performed by the participant. The view presentation module presents a data stream associated with the data screen on the mobile device.

Abstract: A smart display detection system is disclosed. The smart display system is configured to allow mobile users to connect with display screens through mobile device cameras. The system can detect the display screens within images captured by the mobile device camera in real time by matching the camera query image with screen images dynamically updated from the display devices. A synchronized time-stamped matching strategy is applied to achieve high performance in detecting the screens playing motion intensive video contents and an aggressive feature selection method is applied to minimize the system uploading bandwidth. The system can accurately find display screens playing either static or dynamic content within an image captured on a mobile device.

Abstract: A method and apparatus for associating strokes with content are described. In one embodiment, an apparatus comprises: a memory to store contexts for a plurality of strokes, wherein each context represents an association between at least one stroke and a portion of image data previously displayed; and a matching module coupled to the memory to: receive an indication of a new stroke to be associated a first image and a first context, determine if the portion the first context is the same as, overlaps or is independent of the contexts stored in the memory, and update the memory to include the new stroke by adding the new stroke to one of the contexts stored in the memory or storing the new stroke with the first context independent of the contexts already stored in the memory.

Abstract: A method and apparatus for displaying and interacting with a user interface are described. In one embodiment, the method comprises: receiving first content for display on a display surface, displaying the first content at a first area of the display surface, capturing a stroke when written on the display surface over a first portion of the first content, and automatically creating a first page at a second area of the display surface, the second area being different than the first area and displaying the first content with the captured stroke.

Abstract: A method and apparatus for summarizing a session are described. In one embodiment, the system associates strokes with image data and comprises: a display surface; a memory coupled to the display surface to store stroke contexts for a plurality of strokes, wherein each stroke context represents an association between at least one stroke and a portion of image data previously displayed; a stroke capture module operable with the display surface and communicably coupled with the memory to capture one or more strokes written over image data presented on the display surface; and a summarization unit coupled to the memory to generate a summary of a session based on content displayed during the session containing one or more strokes made during the session.

Abstract: Techniques for associating strokes information generated at an interactive whiteboard system with a user identifier. The user identifier may, for example, be an image of a user who generated the strokes information. The associating may be performed based upon time stamps associated with the strokes information and the image. Information may be stored indicative of the association between the strokes information and the user identifier.

Abstract: In systems that enable collaboration, techniques are provided for communicating and displaying positional information with respect to these systems so as to enhance the collaborative experience. The systems may include interactive whiteboard (IWB) systems participating in a collaborative session. The position of an object (e.g., a user) at a first IWB system may be tracked and displayed at a second IWB system located remotely from the first IWB system.

Abstract: A method and apparatus is disclosed herein for associating strokes with a document image. In one embodiment, the method comprises capturing strokes written on a screen over a first document image while the document image is being displayed, associating captured stroke data of the captured strokes with underlying image patches of the document image being displayed, determining that a second document image is being displayed on the screen, determining whether one or more image patches of the second document image, or parts thereof, had previously been associated with captured stroke data, and drawing one or more previously captured strokes, or portions thereof, on image patches of the second document image based on results of determining whether one or more image patches of the second document image, or parts thereof, had previously been associated with captured stroke data.

Abstract: A method and apparatus is disclosed herein for automatically ending an interactive device session. In one embodiment, the system comprises a memory; and a processor coupled to the memory and operable to: log out a user, delete locally stored data created during a session, and place one or more system hardware components in a reduced power consumption state based on: occupancy sensor data indicating presence or absence of one or more individuals in proximity to an occupancy sensor, and activity information associated with a display surface.

Abstract: A method and apparatus for maintaining a tamper proof device log are described. In one embodiment, the method comprises maintaining an embedded log in the device, the embedded log being a chain of log entries. In one embodiment, the method may also comprise publishing at least one log entry to a location external to the device.

Abstract: A method and apparatus for printing from mobile devices are described. In one embodiment, the method comprises outputting a machine-readable code associated with the printer; receiving rendered print data specified by the mobile device that scanned and decoded the machine-readable code; and printing the rendered print data.

Abstract: The disclosure includes a system and method for switching between video views and data views. The system includes a controller, a view presentation module, a screen detection module and a view switching module. The controller receives data indicating a participant joined a multi-user communication session. The view presentation module presents a video stream on a mobile device associated with the participant. The screen detection module determines an occurrence of a detection trigger event. The controller receives a video frame image responsive to the occurrence of the detection trigger event. The screen detection module detects a data screen in the video frame image. The view switching module switches a view on the mobile device from video view to data view responsive to a natural gesture performed by the participant. The view presentation module presents a data stream associated with the data screen on the mobile device.

Abstract: Techniques for automatically performing one or more actions responsive to a successful login. In one embodiment, an action automatically performed responsive to the login uses content created prior to the login.