Abstract: Gesture recognition system for remote controlling a TV is disclosed. The system comprises: (a) a webcam for capturing a video sequence of a user which is composed of video frames (b) a hand tracker for receiving the video sequence, and when a hand is determined within a frame of the video sequence, the hand tracker calculates the hand centroid; (c) a trajectory buffer for receiving plurality of the hand centroids as determined from plurality of frames respectively; (d) trajectory segmentation module for continuously inspecting the buffer for possible inclusion of relevant trajectories that relate to a hand gesture pattern, and whenever a relevant trajectory is detected, it extracts a respective trajectory segment, and conveys the segment into a gesture classifier; and (e) the gesture classifier for verifying whether the segment relates to a specific gesture command, and when affirmative, the gesture classifier transfers the respective command to the TV.

Abstract: The invention relates to a gesture recognition system for remote controlling a TV, which comprises: (a) video capturing device for capturing a video sequence of a user which is composed of video frames, and conveying the same into a hand tracker; (b) hand tracker module for receiving said video sequence, inspecting each of said video frames for possible inclusion of a user hand within it, and when a hand is determined to be found in a frame, calculating the hand centroid, and outputting the centroid coordinates into a trajectory buffer; (c) trajectory buffer for receiving from said hand tracker each of said hand centroid coordinates, and maintaining in storage at least several tens of recent hand centroids, that altogether define a trajectory; (d) trajectory segmentation module for continuously inspecting said buffer for possible inclusion of relevant trajectories that are suspected to relate to a hand gesture pattern, and whenever a relevant trajectory is detected, extracting a trajectory segment of the same