Patent ID: 8254627
Filing Date: 2012-08-28
Classification: E05F,E05Y,G06K

Abstract:
1. A method for following hand movements in an image flow, the method comprising: receiving an image flow in real time; locating in each image in the received image flow a hand contour delimiting an image zone of a hand; extracting postural characteristics from the image zone of the hand located in each image; and determining hand movements in the image flow from the postural characteristics extracted from each image, wherein the extracting the postural characteristics of the hand in each image includes locating in the image zone of the hand a center of a palm of the hand by applying to the image zone of the hand a distance transform which associates with each pixel of the image zone of the hand a distance from the pixel to a nearest pixel of the hand contour, the center of the palm of the hand being located on the pixel associated with a greatest distance.