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 language | English |
|---|---|
| Patent number | WO2005124657 |
| IPC | H04M 1/ 2755 A N |
| Priority date | 18/06/04 |
| Publication status | Published - 29 Dec 2005 |
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METHOD FOR DETECTING A CODE WITH THE AID OF A MOBILE STATION. / Baeckstroem, Christer (Inventor); Soedergaard, Caj (Inventor).
IPC No.: H04M 1/ 2755 A N. Patent No.: WO2005124657.Research output: Patent › Research
TY - PAT
T1 - METHOD FOR DETECTING A CODE WITH THE AID OF A MOBILE STATION
AU - Baeckstroem, Christer
AU - Soedergaard, Caj
PY - 2005/12/29
Y1 - 2005/12/29
N2 - 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.
AB - 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.
M3 - Patent
M1 - WO2005124657
ER -