Patent · US Expired

Method of recognizing a code

US7388984B2 · kind B2 · utility

1Cited by
10References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 28, 2002
Grant dateJun 17, 2008
Priority date
Expiry dateFeb 14, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06K19/06037
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

The invention relates to a method of recognizing a code which is encoded inside an image data set which contains a piece of respective information on a gray scale value for each of a plurality of picture elements. At least one dilation operation and/or erosion operation is carried out on the image data set.

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