Abstract: An apparatus for interaction of a plurality of users with an application, comprising: a plurality of pointing devices (10) capable of emitting a signal (80; 110) (such as visible or infrared light, a laser or omnidirectional flashes), each pointing device comprising one or more triggers; a presentation device (20) (such as display, a wall, or any objects); and detection means (30) (camera, stereo camera, other) capable of detecting said signal (80; 110). The apparatus also comprises means (30, 40) for detecting trigger actions by said users, and recording the identity and time of said trigger actions (30, 40), means (40, 13) for enabling said pointing devices (10) to emit said signal (80; 110) and means (40) for enabling said detection means (30) to detect said signal (80, 110), and for linking said signal detection to a specific pointing device (10) trigger action.

Abstract: The invention relates to a method for identifying and extracting images of one or more users in an interactive environment comprising the steps of: —obtaining a depth map (7) of a scene in the form of an array of depth values, and an image (8) of said scene in the form of a corresponding array of pixel values, said depth map (7) and said image (8) being registered; applying a coordinate transformation to said depth map (7) and said image (8) for obtaining a corresponding array (15) containing the 3D positions in a real-world coordinates system and pixel values points; —grouping said points according to their relative positions, by using a clustering process (18) so that each group contains points that are in the same region of space and correspond to a user location (19); —defining individual volumes of interest (20) each corresponding to one of said user locations (19); —selecting, from said array (15) containing the 3D positions and pixel values, the points located in said volumes of interest for obtaining

Abstract: An apparatus for interaction of a plurality of users with an application, comprising: a plurality of pointing devices (10) capable of emitting a signal (80; 110) (such as visible or infrared light, a laser or omnidirectional flashes), each pointing device comprising one or more triggers; a presentation device (20) (such as display, a wall, or any objects); and detection means (30) (camera, stereo camera, other) capable of detecting said signal (80; 110). The apparatus also comprises means (30, 40) for detecting trigger actions by said users, and recording the identity and time of said trigger actions (30, 40), means (40, 13) for enabling said pointing devices (10) to emit said signal (80; 110) and means (40) for enabling said detection means (30) to detect said signal (80, 110), and for linking said signal detection to a specific pointing device (10) trigger action.

Abstract: The invention relates to a method for identifying and extracting images of one or more users in an interactive environment comprising the steps of: —obtaining a depth map (7) of a scene in the form of an array of depth values, and an image (8) of said scene in the form of a corresponding array of pixel values, said depth map (7) and said image (8) being registered; applying a coordinate transformation to said depth map (7) and said image (8) for obtaining a corresponding array (15) containing the 3D positions in a real-world coordinates system and pixel values points; —grouping said points according to their relative positions, by using a clustering process (18) so that each group contains points that are in the same region of space and correspond to a user location (19); —defining individual volumes of interest (20) each corresponding to one of said user locations (19); —selecting, from said array (15) containing the 3D positions and pixel values, the points located in said volumes of interest for obtaining