Print verification database mechanism

• US 8,964,192 B2
• Filed: 12/06/2011
• Issued: 02/24/2015
• Est. Priority Date: 12/06/2011
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Production Print Solutions, LLC (Ricoh Company Limited)
• Inventors: LeCostaouec, Yann, Holley, Michael Jeffrey, Fisher, Ward, Wills, Cheyenne, Walp, Jason, Rijavec, Nenad, Vadlamani, Sathya
• Primary Examiner(s): Nguyen, Madelein A
• Application Number:
  US13/311,772
• Publication Number:
  US 20130141767A1
• Time in Patent Office: 1,176 Days
• Field of Search: None
• US Class Current: 358/1.13
• CPC Class Codes: G06T 2207/10008 from scanner, fax or copier
• CPC Class Codes: G06T 2207/30124 Fabrics; Textile; Paper
• CPC Class Codes: G06T 2207/30176 Document
• CPC Class Codes: G06T 7/0006 using a design-rule based approach
• CPC Class Codes: H04N 1/00005 relating to image data
• CPC Class Codes: H04N 1/00029 Diagnosis, i.e. identifying a problem by comparison with a normal state
• CPC Class Codes: H04N 1/00042 Monitoring, i.e. observation H04N1/00029 - H04N1/00039 take precedence
• CPC Class Codes: H04N 1/00045 using a reference pattern designed for the purpose, e.g. a test chart
• CPC Class Codes: H04N 1/0005 in service, i.e. during normal operation
• CPC Class Codes: H04N 1/00087 Setting or calibrating picture signal circuits H04N1/40
• CPC Class Codes: H04N 1/6072 adapting to different types of images, e.g. characters, graphs, black and white image portions

Abstract

A method is disclosed. The method includes reading image data from a print medium and performing image processing on the image data by querying a database to verify that each object to be included on the print medium appears on the medium in a manner in which it is supposed to appear.

Claims

1. A print verification system comprising:

one or more image readers to read image data from a print medium;

a database including one or more print job objects that are to be included on the print medium; and

a processor to perform image processing on the read image data by querying the database to verify that each print job object included in the read image data appears on the print medium in a manner according to object rules and criteria specified in the database, wherein an object rule includes information regarding a desired coordinate placement of a print job object and a criterion provides a desired print quality for the print job object.

2. The print verification system of claim 1 wherein the database object rules and criteria are generated from an analysis of print page data prior to application of ink to the print medium.

3. The print verification system of claim 1 wherein an object rule includes information regarding object combinations.

4. The print verification system of claim 1 wherein an object rule includes information regarding color values for an object.

5. The print verification system of claim 4 wherein the processor verifies that the object includes color values indicated by the object rule.

6. The print verification system of claim 1 wherein the database further comprises criteria metric.

7. The print verification system of claim 6 wherein a criteria metric is implemented to examine general object properties.

8. The print verification system of claim 7 wherein the general object properties comprise one of proportion, color, sheet cuts, or shifted planes.

9. The print verification system of claim 6 wherein a criteria metric is implemented to examine detailed object properties.

10. The print verification system of claim 6 wherein a criteria metric is implemented to determine legibility of an object.

11. A method comprising:

reading image data from a print medium; and

performing image processing on the read image data by querying the database to verify that each print job object included in the read image data appears on the print medium in a manner according to object rules and criteria specified in the database, wherein an object rule includes information regarding a desired coordinate placement of a print job object and a criterion provides a desired print quality for the print job object.

12. The method of claim 11 wherein the database object rules and criteria are generated from an analysis of print page data prior to application of ink to the print medium.

13. The method of claim 11 wherein an object rule includes information regarding object combinations.

14. The method of claim 11 wherein an object rule includes information regarding color values for an object.

15. The method of claim 11 wherein image processing further comprises querying the database to verify that each object appears on the print medium in accordance with one or more criteria metrics.

16. The method of claim 15 wherein a criteria metric is implemented to examine general object properties.

17. The method of claim 15 wherein a criteria metric is implemented to determine legibility of an object.