Patent ID: 8666115
Filing Date: 2014-03-04
Classification: G06F,G06K

Abstract:
1. A method for computer vision based hand gesture device control, the method comprising receiving a sequence of images of a field of view, said images comprising at least one object; detecting movement of the at least one object in the images, to define at least one moving object; applying a shape recognition algorithm on the at least one moving object in each of at least two of the sequence of images, to obtain shape information; performing a first stage determination that the at least one moving object is a user hand by determining that the movement of the at least one object is a movement in a predefined pattern; performing a second stage determination that the at least one moving object is a user hand by combining the shape information from each of the at least two of the sequence of images to obtain a combined shape information, and determining that the combined shape information corresponds to a hand shape; and subject to successful first and second stage determination, tracking the user hand to control the device.