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Method for detecting graphical symbols, involves determining minimum extension factor and maximum extension factor of rotated graphical symbols, and determining value representing addition of minimum and maximum extension factors
Method for detecting graphical symbols, involves determining minimum extension factor and maximum extension factor of rotated graphical symbols, and determining value representing addition of minimum and maximum extension factors
The method involves determining an extension factor of graphical symbols, and rotating the graphical symbols around 90 degree. A minimum extension factor and a maximum extension factor of the rotated graphical symbols are determined. A value representing addition of minimum and maximum extension factors is determined. A rotation angle is determined for determining rotation with respect to minimum extension factor, where extension and rotation of the graphical symbols take place on a pattern field (10) that consists of a rectangular surface (11) and quadratic pattern fields (12). Independent claims are also included for the following: (1) a device for performing a method for detecting graphical symbols (2) a computer program product for a device for performing a method for detecting graphical symbols (3) a computer readable data structure comprising instructions to perform a method for detecting graphical symbols (4) a computer readable data medium comprising instructions to perform a method for detecting graphical symbols.
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