Treffer: Detection of printed codes with a camera phone
Title:
Detection of printed codes with a camera phone
Authors:
Source:
Hakola, L & Linna, H 2005, Detection of printed codes with a camera phone. in Digitalisation and Print Media : 32nd International iagirai Research Conference. Conference Papers. VTT Technical Research Centre of Finland, pp. 355-361, 32nd International Research Conference of IARIGAI, Porvoo, Finland, 4/09/05. < http://jpmtr.org/iarigai_Porvoo_2005_1.pdf >
Publisher Information:
VTT Technical Research Centre of Finland
Publication Year:
2005
Subject Terms:
Document Type:
Fachzeitschrift
article in journal/newspaper
Language:
English
Relation:
info:eu-repo/semantics/altIdentifier/isbn/951-38-5534-1
Availability:
Rights:
info:eu-repo/semantics/openAccess
Accession Number:
edsbas.E8C850F0
Database:
BASE
Weitere Informationen
The scope of a research project at VTT Information Technology was to investigate new printed coding methods such as two-dimensional bar codes and their applications. It was found that the camera phones are suitable for detecting even very small printed two-dimensional bar codes, but add-on lenses are needed. It is, however, expected that camera phones will have higher resolution and better lenses in a few years time which will result in detecting smaller cells and more characters in one symbol. Camera phones can also be used for detecting colours for purposes such as food quality indication, but for reliable detection better CCD cells or colour calibration is needed.