Method for detecting a code with the aid of a mobile station

Christer Baeckstroem (Inventor), Caj Soedergaard (Inventor)

Research output: PatentPatent application

Abstract

The invention relates to a method for detecting a code (40), and a mobile station adapted to the method. In the method, the mobile station (50) is used to capture an image of the subject (40) and the image is analysed and decoded into a numerical form in the mobile station (50). According to the invention, before the decoding of the bar code in the mobile station the edges of the subject (40) are determined from a high-resolution image, in the case of a 2D code, the location of the corner point of the subject (49) are estimated on the basis of adaptive thresholding, and, in the case of a 2D code, a perspective transformation is formed.

Original languageEnglish
Patent numberWO05124657 A1
IPCH04M 1/ 2755 A N
Priority date18/06/04
Filing date17/06/05
Publication statusPublished - 29 Dec 2005
MoE publication typeNot Eligible

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Baeckstroem, C., & Soedergaard, C. (2005). IPC No. H04M 1/ 2755 A N. Method for detecting a code with the aid of a mobile station. (Patent No. WO05124657 A1).