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:
May. 02, 1995
Filed:
Oct. 22, 1993
Yoichi Takagi, Hitachi, JP;
Kazunori Fujiwara, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A pattern recognition method for a cloth having a striped or checked pattern form comprising the steps of: inputting the pattern image for displaying the same on a display screen for teaching; generating X and Y axis concentration accumulated projection histograms from the input screen image over one pitch of the pattern for the teaching; performing a shading correction on the generated projection histograms; selecting a characteristic quantity and an evaluation function of the corrected projection histogram for the pattern based on the input screen image and the corrected projection histograms; further generating X and Y axis concentration accumulated projection histograms from the input screen image over one pitch of the pattern form for the actual pattern recognition; further generating an evaluation function diagram of the corrected projection histograms based on the selected characteristic quantity and the evaluation function; and determining a key pattern position on the input screen image of the pattern based on the generated evaluation function diagrams.