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. 01, 1985
Filed:
Jan. 31, 1984
Didier Juvin, Paris, FR;
Benoit Dupeyrat, Chilly-Mazarin, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
A process for the automatic recognition of an image (I) on the basis of a corresponding reference image, including obtaining, by optoelectronic detection means (C), signals representing both the image to be recognized and the reference image, digitizing (in CAN) and recording the respective signals in a memory (M), using a processing unit (UT) to determine the coordinates of respective characteristic contour lines in the image to be recognized and the reference image, segmenting the respective contour lines and coding the segments (Si), attributing to each segment a pair of values (.rho..sub.i, .theta..sub.i) relating to its length (.rho..sub.i) and its angle (.theta..sub.i) compared with a reference direction, and comparing the respective pairs of values while seeking coincidence between the large segments of the contour to be recognized and the reference contour. The process has application to the recognition of shapes, particularly in robotics.