High speed image acquisition system and method

G - Physics – 06 – K

Patent

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G06K 7/14 (2006.01) G06K 7/10 (2006.01)

Patent

CA 2255576

A system for high speed acquisition and decoding of a barcode symbol locates potential barcode candidates within a scanned image and filters the candidates to eliminate invalid data. The system permits computational resources to be focused on decoding information most likely to be an actual barcode symbol. Once a potential barcode candidate has been located, the barcode symbol is processed to determine the barcode orientation and symbology. Each element of the barcode symbol is then located, even if all elements are not visible in the original image, and the barcode symbol is decoded in accordance with the specific symbology.

Un système permettant d'effectuer l'acquisition et le décodage à grande vitesse d'un symbole de code à barres localise les candidats de codes à barres potentiels dans une image balayée et filtre les candidats pour éliminer les données non valides. Le système permet de concentrer les ressources informatiques sur le décodage des informations qui le plus probablement décrivent un symbole de vrai code à barres. Lorsqu'un candidat de code à barres potentiel a été localisé, le symbole de code à barres est traité pour déterminer l'orientation et la symbologie du code à barres. Chaque élément du symbole de code à barres est ensuite localisé même si tous les éléments ne sont pas visibles dans l'image d'origine, et le symbole de code à barres est décodé en fonction de la symbologie spécifique.

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