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US 9,286,557 B2Granted
Optimizing quick response code capacity using gray luminance
AssigneeInternational Business Machines Corporation
InventorsSuzanne C. Deffeyes, Grant D. Miller, Nader M. Nassar, Richard J. Newhook
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Abstract
A system and methods are provided. A method includes determining a set of Grayscale bands providing an increase in a Quick Response Code data capacity that is an integer multiple of the Quick Response Code data capacity provided by a Black and White Quick Response Code that uses only Black and White to represent data. The method further includes generating, using a processor, a Grayscale Quick Response Code using the determined set of Grayscale bands to represent the data.
Claims20
A method, comprising:
- determining a set of Grayscale bands providing an increase in a Quick Response Code data capacity that is an integer multiple of the Quick Response Code data capacity provided by a Black and White Quick Response Code that uses only Black and White to represent data;
- and
- generating, using a processor, a Grayscale Quick Response Code using the determined set of Grayscale bands to represent the data.
A system, comprising:
- a memory for storing a set of Grayscale bands providing an increase in a Quick Response Code data capacity that is an integer multiple of the Quick Response Code data capacity provided by a Black and White Quick Response Code that uses only Black and White to represent data;
- and
- a Quick Response Code generator for generating a Grayscale Quick Response Code using the determined set of Grayscale bands to represent the data.
A method, comprising:
- determining a set of Grayscale bands providing an increase in a Quick Response Code data capacity that is an integer multiple of the Quick Response Code data capacity provided by a Black and White Quick Response Code that uses only Black and White to represent data;
- generating, using a processor, a Grayscale Quick Response Code using the determined set of Grayscale bands to represent the data;
- and
- establishing a calibration for a median brightness level for a Quick Response Code optical reader using a Grayscale color code primer in the Quick Response Code that assigns a predetermined percentage of Gray to predetermined elements of the Quick Response Code,
- wherein the set of Grayscale bands comprises sixteen shades of Gray, and the integer multiple is equal to four to provide four times the amount of data per pixel than the Black and White Quick Response Code.
2 more elements
Dependencies are inferred from the claim text.