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.

Abstract: An interactive input system comprises a pointer input region; and a multi-angle reflecting structure located along a single side of the pointer input region and operable to reflect radiation from a pointer within the pointer input region from at least two surface locations of the multi-angle reflecting structure, wherein the at least two surface locations each have different respective angles. An imaging system is operable to capture within at least a portion of the pointer input region images of the reflected radiation located within a field of view of the imaging system. Processing structure is provided for determining the location of the pointer relative to the pointer input region based on the at least one image.

Abstract: An interactive input system and imaging assembly therefor are disclosed. The imaging assembly includes an image sensor for capturing images of a region of interest; a light source; and a beam splitter. The beam splitter is configured such that optical axes of the image sensor and the light source are generally aligned.

Abstract: An interactive input system includes at least one image sensor capturing image frames of a region of interest; at least one light source emitting illumination into the region of interest; a bezel at least partially surrounding the region of interest, the bezel comprising at least one multi-angle reflector reflecting the illumination emitted from the light source towards the at least one image sensor; and processing structure in communication with the at least one image sensor processing captured image frames for locating a pointer positioned in proximity with the regin of interest. A method of generating image frames is also provided.

Abstract: A method of resolving ambiguities between at least two pointers within a region of interest comprises capturing images of the region of interest and at least one reflection thereof from different vantages using a plurality of imaging devices, processing image data to identify a plurality of targets for the at least two pointers, for each image, determining a state for each target and assigning a weight to the image data based on the state, and calculating a pointer location for each of the at least two pointers based on the weighted image data.

Abstract: A method of inhibiting a subject's eyes from being exposed to projected light when the subject is positioned in front of a background on which an image is displayed comprises capturing at least one image of the background including the displayed image, processing the captured image to detect the existence of the subject and to locate generally the subject and masking image data used by the projector to project the image corresponding to a region that encompasses at least the subject's eyes.

Abstract: A housing assembly for an imaging assembly comprises a housing body comprising at least one passage for accommodating a respective light socket; and a filter integrated with the housing body through which an image sensor looks.

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.

Abstract: An interactive input system comprises a pointer input region; and a multi-angle reflecting structure located along a single side of the pointer input region and operable to reflect radiation from a pointer within the pointer input region from at least two surface locations of the multi-angle reflecting structure, wherein the at least two surface locations each have different respective angles. An imaging system is operable to capture within at least a portion of the pointer input region images of the reflected radiation located within a field of view of the imaging system. Processing structure is provided for determining the location of the pointer relative to the pointer input region based on the at least one image.

Abstract: An illumination assembly for an interactive input system comprises at least two proximate radiation sources directing radiation into a region of interest, each of the radiation sources having a different emission angle.

Abstract: A method of inhibiting a subject's eyes from being exposed to projected light when the subject is positioned in front of a background on which an image is displayed comprises capturing at least one image of the background including the displayed image, processing the captured image to detect the existence of the subject and to locate generally the subject and masking image data used by the projector to project the image corresponding to a region that encompasses at least the subject's eyes.