Patent · US Active

Scratch identification utilizing integrated defect maps

US10635040B2 · kind B2 · utility

0Cited by
3References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 21, 2017
Grant dateApr 28, 2020
Priority date
Expiry dateMar 21, 2037

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/55
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In one example of the disclosure, a set of scanned images is accessed. The scanned images are scans of distinct printouts of subject images produced utilizing a photo imaging plate. A set of defect maps is created by comparing the scanned images to reference data for the subject images. The set of defect maps are combined into an integrated defect map. A scratch defect on the PIP is identified utilizing the integrated defect map.

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