Reading of optical codes
AssigneeSick AG
InventorsSascha BURGHARDT, Jean STAWIASKI
Life of this patent
Estimating the term…
Abstract
A method for reading optical codes (12) with distortions caused by an uneven back-ground of the code (12), the method comprising the steps of acquiring image data including the code (12), locating a region including the code (12) in the image data, and reading the code content of the code (12) from image data in the region, wherein the code (12) is read from image data at sampling points arranged in a sampling pattern corresponding to the distortions.
Claims19
A method for reading optical codes (12) with distortions caused by an uneven background of the code (12), the method comprising the steps of
- acquiring image data including the code (12),
- locating a region including the code (12) in the image data,
- and reading the code content of the code (12) from image data in the region,
- wherein the code (12) is read from image data at sampling points arranged in a sampling pattern corresponding to the distortions.
A code reading apparatus (10) for reading optical codes (12) with distortions caused by an uneven background of the code (12), the code reading device (10) comprising an image sensor (14) for acquiring image data including the code (12) and a control and evaluation unit (16) which is configured to locate a region including the code in the image data and to read the code content of the code (12) from image data in the region at sampling points arranged in a sampling pattern corresponding to the distortions.
Dependencies are inferred from the claim text.