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Method of decoding optical information

  • US 9,430,689 B2
  • Filed: 12/22/2011
  • Issued: 08/30/2016
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. A method for decoding optical information present in an acquired image, and comprising:

  • identifying a set of functional parameters that are settable for processing said image and a plurality of instances of said set of functional parameters, and in which each of said instances corresponds to a different processing mode for said image;

    selecting a processing mode for decoding said optical information from the processing modes of a working set of processing modes;

    applying said selected processing mode; and

    associating with each processing mode a respective probability of success;

    wherein said selecting a processing mode comprises;

    choosing the processing mode with a highest probability of success value;

    updating after said applying said selected processing mode, both if said decoding was successful and if said decoding was not successful, a probability of success of each processing mode of said working set, such as to provide adaptive decoding of said optical information,wherein a library set of processing modes for decoding said code corresponds to said plurality of instances, said library set being formed of a preset number of different processing modes, said preset number being greater than or the same as the number of processing modes of which said working set is formed,the method further comprising identifying a set of possible causes of failure of said decoding and associating with each of said causes of failure a respective specialised subset or a plurality of respective specialised subsets of said settable functional parameters, to define a respective specialised set or a plurality of respective specialised subsets of said processing mode, each of said specialised sets being related with a different cause of failure.

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