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:
Jan. 31, 2006
Filed:
Mar. 07, 2003
Hiroshi Tanaka, Tochigi, JP;
Takuji Maruta, Tochigi, JP;
Hiroshi Tanaka, Tochigi, JP;
Takuji Maruta, Tochigi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of detecting a position of a mark within image data. The method includes a first step of obtaining a first position of the mark based on a first degree of correlation between a first template and the image data, the first template having a first feature point to obtain the first degree of correlation, a second step of obtaining a second position of the mark based on a second degree of correlation between a second template and the image data, the second template having a second feature point, of which a position is different from that of the first feature point, to obtain the second degree of correlation, and a third step of detecting the position of the mark through the first and second steps.