The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2000
Filed:
Dec. 22, 1997
Applicant:
Inventors:
Anthony Vernon Smith, Richardson, TX (US);
Alistair Ian Sutherland, Dublin, IE;
Arnaud Lemoine, Paris, FR;
Sean Mcgrath, Dublin, IE;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345157 ; 345158 ; 345156 ; 345358 ;
Abstract
Noise problems in processing small images or large-granularity images are reduced by representing hand images as rotational vectors calculated using a real-valued centroid. The hand region is therefore sectored independently of pixel quantization. Color segmentation is used to identify hand-color regions, followed by region labelling to filter out noise regions based on region size. Principal component analysis is used to plot gesture models.
Published as:
EP0849697A1; JPH10214346A; TW393629B; US6128003A; EP0849697B1; ATE232621T1; DE69626208D1; DE69626208T2;