US 8,045,232 B2 · Image display medium, method and system for preparing composite image display data

Abstract

An image display medium displays an image including a first region having a first composite image. The first composite image includes a first display image and a first latent image. The first display image includes at least one of a first halftone dot image and a first line image having a first linearity. The first halftone dot image and the first line image have such densities as are not reproduced by copying. The first latent image includes at least one of a second halftone dot image and a second line image having a second linearity. The second halftone dot image and the second line image have such densities as are not reproduced by copying. The first and second linearities produce different moiré patterns when the first display and the first latent images are enlarged by a first common optical system.

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Claims19

Dependent claims

An image display medium for displaying an image having a first region including a first composite image and a second region including a second composite image,

the first composite image comprising:
a first display image including at least one of a first halftone dot image and a first line image having a first linearity, the first halftone dot image and the first line image having such densities as are not reproduced by copying;
a first latent image incorporated into the first display image including at least one of a second halftone dot image and a second line image having a second linearity, the second halftone dot image and the second line image having such densities as are not reproduced by copying, wherein
the first linearity produces a moiré pattern different from a moiré pattern produced by the second linearity when the first display image and the first latent image are enlarged by a first common optical system;
and
the second composite image comprising:
a second display image including at least one of a third halftone dot image and a third line image having a third linearity, the third halftone dot image and the third line image having such densities as are reproduced by copying;
and
a second latent image including at least one of a fourth halftone dot image and a fourth line image having a fourth linearity, the fourth halftone dot image and the fourth line image having such densities as are reproduced by copying, wherein
the third linearity produces a moiré pattern different from a moiré pattern produced by the fourth linearity when the second display image and the second latent image are enlarged by a second common optical system.

7 more elements

A method of preparing composite image display data implemented by a computer programmed as an image generation device for displaying a first composite image in a first region and a second composite image in a second region, the method comprising:

obtaining data relating to a first display image of the first composite image including at least one of a first halftone dot image and a first line image having a first linearity, a first latent image of the first composite image including at least one of a second halftone dot image and a second line image having a second linearity, a second display image of the second composite image including at least one of a third halftone dot image and a third line image having a third linearity, and a second latent image of the second composite image including at least one of a fourth halftone dot image and a fourth line image having a fourth linearity;
generating, by the image generation device, image data of the first region displaying the first composite image including the first display image and the first latent image based on the data relating to the first display image and the first latent image, wherein the first linearity and the second linearity produce different moiré patterns when the first display image and the first latent image are enlarged by a first common optical system, the first region including the first halftone dot image, the first line image, the second halftone dot image and the second line image having such densities as are not reproduced by copying;
and
generating image data of the second region displaying the second composite image of the second display image and the second latent image based on the data relating to the second display image and the second latent image, wherein the third linearity and the fourth linearity produce different moiré patterns when the second display image and the second latent image are enlarged by a second optical system, the second region including the third halftone dot image, the third line image, the fourth halftone dot image and the fourth line image having such densities as are reproduced by copying.

1 more element

An image generation system configured to prepare composite image display data for displaying a first composite image in a first region and a second composite image in a second region, the image generation system comprising:

a first mechanism configured to obtain data relating to a first display image of the first composite image including at least one of a first halftone dot image and a line image having a first linearity, a first latent image of the first composite image including at least one of a second halftone dot image and a second line image having a second linearity, a second display image of the second composite image including at least one of a third halftone dot image and a third line image having a third linearity, and a second latent image of the second composite image including at least one of a fourth halftone dot image and a fourth line image having a fourth linearity;
and
a second mechanism configured to generate image data of the first region displaying the first composite image including the first display image and the first latent image based on the data relating to the first display image and the first latent image, wherein the first linearity and the second linearity produce different moiré patterns when the first display image and the first latent image are enlarged by a first optical system, the first region including the first halftone dot image, the first line image, the second halftone dot image and the second line image having such densities as are not reproduced by copying, and further configured to generate image data of the second region displaying the second composite image including the second display image and the second latent image based on the data relating to the second display image and the second latent image, wherein the third linearity and the fourth linearity produce different moiré patterns when the second display image and the second latent image are enlarged by a second optical system, the second region including the third halftone dot image, the third line image, the fourth halftone dot image and the fourth line image having such densities as are reproduced by copying.

Dependencies are inferred from the claim text.

Description6,911 words

Summary1,398 words

#This patent specification is based on and claims priority from Japanese Patent Application No. 2006-205233 filed on Jul. 27, 2006 in the Japan Patent Office, the entire contents of which are incorporated by reference herein.

#1. Field of the Invention

#The present invention relates to a medium, a method and a system for composite image formation. More particularly, the present invention relates to an image display medium capable of displaying a composite image including a display image and a latent image, and a preparation method and a generation system for preparing composite display image data.

Brief description of the drawings10 figures

#A more complete appreciation of the exemplary aspects of the invention and many of the attendant advantage thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:

#FIG. 1A is a schematic diagram illustrating an original image on an image display medium according to an embodiment of the present invention;

#FIG. 1B is an enlarged partial view partially illustrating the original image of FIG. 1A as seen when observed through an optical system;

Detailed description5,247 words

#In describing embodiments illustrated in the drawings, specific terminology is employed for the sake of clarity. However, the disclosure of this patent specification is not intended to be limited to the specific terminology so selected and it is to be understood that each specific element includes all technical equivalents that operate in a similar manner.

#Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views, an image display medium according to an embodiment of the present invention is described.

#Referring to FIG. 1A, an original image to be displayed on an image display medium includes a high density region H (also referred to as a first region) and a low density region L (also referred to as a second region). The original image is a monochrome image and includes a halftone dot image. The image display medium in the embodiment is a print sheet. However, the image display medium is not limited thereto and can be an overhead projector sheet, a display medium, etc.

Facts

Application

11/782,946Filed 25 Jul 2007

Priority

JP 2006-20523327 Jul 2006

Published

US 2008/0024803 A131 Jan 2008

Granted

25 Oct 2011

Term ends

23 Aug 2030

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 1,125 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification2 codes

G06T 11/60
Two-dimensional [2D] image generation: creating or editing images; Combining images with text
G06T
Image data processing or generation, in general

Timeline

27 Jul 2006Priority claimedJP 2006-205233
25 Jul 2007Application filedUS 11/782,946
25 Jul 2007Assigned to Ricoh Company, Ltd.assignment of assignor's interest
31 Jan 2008PublishedUS 2008/0024803 A1
25 Oct 2011GrantedUS 8,045,232 B2
12 Oct 2026TodayWithin its term
23 Aug 2030Term endsEstimated, includes 1,125 days of adjustment

Image display medium, method and system for preparing composite image display data

Life of this patent

Image display medium, method and system for preparing composite image display data

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims19

Description6,911 words

Drawings

Classification2 codes

Life of this patent

Description6,911 words