Abstract: A pen tool for use with a machine vision interactive input system comprises an elongate body and a tip arrangement at one end of the body, an end surface of the body at least partially about the tip arrangement carrying light reflective material that is visible to at least one imaging assembly of the interactive input system when the pen tool is angled.

Abstract: A three-dimensional (3D) interactive input system comprises a holographic image generator defining an enclosed space to accommodate a 3D object and configured to generate a holographic image of the 3D object that appears adjacent an input region of the holographic image generator. A projection unit is configured to project image data onto the 3D object, the image data projected onto the 3D object appearing on the holographic image. A sensing unit is configured to detect user proximity to the input region. Processing structure is configured to process sensing unit output and in response, update image data projected by the projection unit.

Abstract: An apparatus for coordinating data sharing in a computer network with at least one physical display device is provided. The apparatus includes a code generator generating at least one unique temporary session connection code (SCC), and a storage device storing associations between each of the at least one SCC and one or more of the at least one physical display device. An interface receives requests from one or more source computers to establish communications sessions for sharing data, and a processor in response to a request establishes a communications session between the requesting source computer and at least one physical display device only in the event that at least one condition is met. The at least one condition includes that a valid SCC is received with the request. The establishing is based on the received SCC. Related methods and computer programs are disclosed.

Abstract: A fixture mounting assembly comprises a track; and a fixture mount on the track and configured to engage a fixture, the track being pivotable between a generally upright orientation and a generally horizontal orientation where engagement of the fixture mount and fixture is facilitated.

Abstract: A method of determining pointer position in an interactive input system comprises identifying pixels of at least one captured image frame as being associated with coherent light; generating a processed image frame from the identified pixels; and determining from the processed image frame a position of at least one pointer that emits coherent light.

Abstract: A method comprising obtaining a first location of a first pointer contact on an input surface; calculating a restricted area proximate the first location; processing the first pointer contact; and inhibit processing of a second location of a second pointer contact within the restricted area.

Abstract: A computerized method of creating an irregular-shaped table of cells comprises detecting one or more cells of a table to be removed, removing each detected cell from the table and creating a table object representing the resultant irregular-shaped table.

Abstract: A method for selecting a graphic widget displayed on a background of an interactive input system comprises tracking one or more touch points associated with the background, and in the event that one or more touch points coincide with a location of the graphic widget, associating the coinciding touch points with the graphic widget.

Abstract: A method of conducting a collaborative event, comprising receives input from at least one participant computing device joined to the collaborative event, categorizing the input according to two or more categories defined within the collaborative event, and displaying the input according to the two or more categories.

Abstract: A video conferencing display device a display panel, at least one imaging device and processing structure. The at least one imaging device has a field of view aimed at an inner surface of the display panel and captures images through the display panel such that when a user is positioned adjacent an outer surface of the display panel, the user appears in the captured images. The processing structure communicates with the at least one imaging device and processes the captured images to create a direct eye image for transmission to a remote device over a network.

Abstract: A method is provide for manipulating a table comprising a plurality of cells, at least one row header and at least one column header. Input events representing a pointer contacting an interactive surface are received. An ink annotation is displayed on the interactive surface in response to the input events. It is determined that the ink annotation corresponds with an ink gesture by comparing the ink annotation with a plurality of predefined ink gestures. The ink annotation is deleted and one or more commands associated with the ink gesture are executed. A system configured to implement the method and a computer readable medium storing instructions to implement the method are also provided.

Abstract: An input tool for use with an interactive input system comprises a body housing processing circuitry storing input tool operating mode data representing operating modes of the input tool and at least one display on the body and communicating with the processing circuitry. The display is responsive to the processing circuitry to present a selected operating mode of the input tool.

Abstract: A projection unit comprises a first light source outputting light that is used to project an image during normal projection unit use, and a second light source outputting light of a different intensity that is used to project an image outside of normal projection unit use.

Abstract: A method comprises detecting when an input device is moved across digital content presented on a display surface and comparing at least one attribute assigned to the input device with at least one attribute assigned to the digital content; and based on the result of the comparison, manipulating the digital content.

Abstract: A method for identifying changes between a current image and a previous image comprises generating a mask using a graphics processing unit, the mask identifying differences between the current and previous images using the graphics processing unit to identify at least a portion of the current image based on the mask and copying image data of the current image corresponding to the identified portions from memory associated with the graphics processing unit to memory associated with a central processing unit.

Abstract: Computerized methods and interactive input systems for manipulation of 3D objects are disclosed. An image of 3D object is displayed on a 2D interactive surface, and input is received and is interpreted for manipulating the 3D object. When the 3D object is selected, rotation control handles indicating available rotation directions are displayed. In one embodiment, the method comprises capturing images of a 3D input space, recognizing at least one object in the images, and comparing the recognized objects in the images to determine a difference therebetween based on a difference threshold. Depending on the outcome of the comparison, the recognized objects are emerged and associated with digital content, or only one of the recognized objects is maintained and associated with digital content.

Abstract: A method comprises detecting the location of a portable computing device within a collaboration system based on wireless communications between the portable computing device and a plurality of collaboration sites within the collaboration system; and displaying a map on the portable computing device that identifies the location of the portable computing device within the collaboration system and that specifies a path to a target collaboration site.

Abstract: A method for resolving ambiguities between at least two pointers in a plurality of input regions defining an input area of an interactive input system. The method includes capturing images of the plurality of input regions, the images captured by a plurality of imaging devices having a field of view of at least a portion of the input area, processing image data from the images to identify a plurality of targets for the at least two pointers within the input area, and analyzing the plurality of targets to resolve a real location associated with each pointer.