Registers – Coded record sensors – Particular sensor structure
Patent
1996-02-26
1998-09-22
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235463, G06K 710
Patent
active
058117768
ABSTRACT:
A method and apparatus locates multiple "bounding boxes" within an image of a symbol located within an image stored by a reader. The symbol preferably has a recognition pattern with an longitudinally extending bar and at least one vertically extending reference bar, such as in the Code One symbology. The method locates the positions of landmark points within the stored image. Landmark points include points at the end of the longitudinally extending bar, points at the corner or root formed between the longitudinally extending bar and the vertically extending bar, points at the ends of the vertically extending bars, and points at the intersection between the bars and blocks that extend transversely therefrom. Based on the locations of the landmark points, horizontal and vertical line functions are defined between collinear landmark points. Based on the intersection of the line functions, multiple bounding boxes are constructed to determine the periphery and all data areas of the symbol within the stored image.
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Hajec Donald T.
Intermec Corporation
Tremblay Mark
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