Patent · US Active

Image defect detection

US10404868B2 · kind B2 · utility

4Cited by

5References

17Claims

0Family size

Assignee

HP INDIGO B.V. · NL

Inventors

Alexander Spivakovsky · Bet Shemesh, IL
Oded Perry · Nes Ziona, IL
Oren Haik · Nes Ziona, IL
Avi Malki · Nes Ziona, IL

Key dates

Filing date	Jul 15, 2015
Grant date	Sep 3, 2019
Priority date	—
Expiry date	Jul 15, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/4097
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Apparatus to detect a defect in a printed image and methods of detecting detects in a printed image are described. In some examples, a printing operation is initiated using image data to generate a printed image. The printed image is then scanned to generate a scanned image. A resolution of the scanned image is estimated, calculated or determined on the basis of a characteristic of the printing operation, and a reference image, having a resolution corresponding to the estimated, calculated or determined resolution, is generated from the image data. Whether defects are present in the printed image may be determined on the basis of a comparison of the reference image with the scanned image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.