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:
Apr. 05, 1988
Filed:
Apr. 09, 1985
Applicant:
Inventors:
Yusuke Yasukawa, Yokohama, JP;
Susumu Kawakami, Tama, JP;
Takashi Uchiyama, Kawasaki, JP;
Yasushi Inamoto, Tokyo, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382 16 ; 364725 ; 382 23 ; 382 56 ;
Abstract
An information extraction device including a coordinate transformation unit for transforming the coordinate values of points on a plane in question to the coordinate values of the points on a spherical surface corresponding to the points on the plane, and a mapping unit for mapping the points on the spherical surface to great circles. This information extraction device is applicable to the detection of the three-dimensional direction of a single line or a single plane existing in space.