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.:

US 8411325 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 02, 2013

Filed:

Mar. 26, 2010
Applicant:

Dietrich Blum, Kiel, DE;

Inventor:

Dietrich Blum, Kiel, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01); G06K 9/32 (2006.01); G06K 1/405 (2006.01); H04N 13/00 (2006.01); H04N 13/04 (2006.01); H04N 1/46 (2006.01); G06F 3/12 (2006.01); H04F 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for screening color separations of a lenticular image having a lenticular frequency of lenticular lenses for viewing the image, with a lens width l. An amplitude-modulated halftone image is calculated for each color separation at one screen angle with a rational number tangent and screen frequency. The screen has non-orthogonal screen cells spanned by vectors u, v for a specific color separation. A distance k is defined. Directions of vectors u, v relating to perpendicular direction relative to image strips of the lenticular image are defined for the specific color separation. First (n, m) and second (i, j) pairs of rational numbers are defined, to satisfy a system of equations: n*u+m*v=0, n*u+m*v=1, i*u−j*v=k and i*u−j*v=0 for vectors u=(u, u) and v=(v, v) spanning screen cells. A computer program product is also provided.


Find Patent Forward Citations

Blum, Dietrich. (2013). Method for screening color separations of a lenticular image, computer program product and method for producing a lenticular image on a printing material (U.S. Patent No. 8411325). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8411325

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