Patent ID: 6819782
Filing Date: 2004-11-16
Classification: G06K,G06T

Abstract:
A device for recognizing hand shape and position of an input hand image, said device comprising:first hand image normalization means for receiving a plurality of hand images varied in hand shape and position, and after a wrist region is respectively deleted therefrom, subjecting the hand images to normalization in a predetermined manner to generate hand shape images; hand shape image information storage means for storing so the hand shape images together with shape information and position information about each of the hand shape images; eigenspace calculation means for calculating an eigenvalue and an eigenvector from each of the hand shape images based on an eigenspace method; eigenvector storage means for storing the eigenvectors; first eigenspace projection means for calculating eigenspace projection coordinates respectively for the hand shape images by projecting the hand shape images onto an eigenspace having the eigenvectors as a basis, and storing the eigenspace projection coordinates into said hand shape image information storage means; second hand image normalization means for receiving the input hand image, and after a wrist region is deleted therefrom, normalizing the input hand image to generate an input hand shape image being equivalent to the hand shape images; second eigenspace projection means for calculating eigenspace projection coordinates for the input hand shape image by projecting the input hand shape image onto the eigenspace having the eigenvectors as the basis; hand shape image selection means for comparing the eigenspace projection coordinates calculated by said second eigenspace projection means with the eigenspace projection coordinates stored in said hand shape image information storage means, and determining which of the hand shape images is closest to the input hand shape image; and shape/position output means for obtaining, for output, the shape information and the position information of the closest hand shape image from said hand shape image information storage means.