Validation method and validation apparatus for sealed unit

Patent metadata

Field	Value
Publication number	US-11942201-B2
Application number	US-202117235604-A
Country	US
Kind code	B2
Filing date	Apr 20, 2021
Priority date	Apr 21, 2020
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

An apparatus to perform or control obtaining or causing obtaining an image of at least a part of a surface of a sealed unit. The apparatus derives or causes to derive a representation of the at least a part of the surface from the image. The representation includes a set of values representing height levels of corresponding sections of the part of the surface. The apparatus generates or causes generating a string of characters based on the representation of the part of the surface. The string of characters includes a first portion representative of the set of height levels and a second portion generated based on a function of the representation and/or of the first portion of the string of characters. The apparatus associates or causes associating information representing the string of characters with identification information of the sealed unit.

First claim

What is claimed:

1. An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause an apparatus at least to perform or control:
obtaining or causing obtaining an image of at least a part of a surface of a sealed unit;
deriving or causing deriving a representation of the at least a part of the surface from the image, the representation comprising a set of values respectively representing a corresponding set of height levels of corresponding sections of the at least a part of the surface;
generating or causing generating a string of characters based on the representation of the at least a part of the surface, the string of characters comprising at least a first portion representative of the set of height levels of the corresponding sections of the at least a part of the surface and a second portion generated based on a function of the representation and/or of the first portion of the string of characters, wherein the function is a most-recurring function and/or an averaging function; and
associating or causing associating information representing the string of characters with identification information of the sealed unit.

2. The apparatus according to claim 1 , wherein associating the information representing the string of characters with the identification information comprises at least one of the following:
storing or causing storing the information representing the string of characters with the identification information of the sealed unit;
providing or causing providing the information representing the string of characters in association with the identification information of the sealed unit to be accessible by at least one external network device, in particular via a communication path.

3. The apparatus according to claim 1 , wherein obtaining the image comprises obtaining or causing obtaining the image of at least a part of:
a bare surface portion of the sealed unit;
a part of a label of the sealed unit;
a part of a seal for sealing the sealed unit.

4. The apparatus according to claim 3 , wherein obtaining the image of the at least a part of the surface comprises:
applying or causing applying ultraviolet, UV, infrared, IR, and/or white light to the at least a part of the surface.

5. An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause an apparatus at least to perform or control:
obtaining or causing obtaining first information representing a first string of characters with a first portion representative of a set of height levels of corresponding sections of at least a part of a surface of a first sealed unit;
determining or causing determining, based on the obtained first information, whether or not the first string of characters is present in a database; and
if the first string of characters is present in the database:
outputting or causing outputting confirmation information;
if the first string of characters is not present in the database:
determining or causing determining, based on a metric function, whether or not at least one second string of characters is present in the database, a distance of which to the first string of characters is below a first predefined threshold; and
outputting or causing outputting the confirmation information if at least one second string of characters is present in the database, the distance of which to the first string of characters is below the first predefined threshold.

6. The apparatus according to claim 5 , wherein the part of the surface of the sealed unit and/or of the first sealed unit corresponds to or comprises at least in part at least one of:
a bare surface portion of the sealed unit;
at least a part of a label of the sealed unit;
at least a part of a seal for sealing the sealed unit.

7. The apparatus according to claim 5 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus at least to perform or control:
if the first string of characters is not present in the database, the method further comprises the following steps (a), (b), and (c):
(a) obtaining or causing obtaining at least second information representing at least one first model string of characters with a first portion representative of a first model set of height levels of the corresponding sections of the at least a part of the surface of the first sealed unit;
(b) determining or causing determining, based on a metric function, whether or not at least one second string of characters is present in the database, a distance of which to the at least one first model string of characters and/or the first string of characters is below a second predefined threshold;
(c) outputting or causing outputting the confirmation information if at least one second string of characters is present in the database, the distance of which to the at least one first model string of characters and/or the first string of characters is below the second predefined threshold.

8. The apparatus according to claim 7 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus at least to perform or control:
if at least one second string of characters is determined to be present in the database, the at least one second string of characters comprising a first portion representative of a set of height levels of corresponding sections of at least a part of a surface of at least one respective second sealed unit corresponding to the at least one second string of characters and the distance of which to the first string of characters and/or to the at least one first model string of characters is below the first and/or the second predefined threshold, the method further comprises the following steps (a), (b) and (c):
(a) obtaining or causing obtaining, for each one of the at least one second string of characters, at least third information representing at least one respective second model string of characters corresponding to the at least one second string of characters with a first portion being representative of a second model set of height levels of corresponding sections of at least a part of the surface of the respective second sealed unit corresponding to the at least one second string of characters;
(b) determining or causing determining whether or not at least one string of characters of the at least one second string of characters and the at least one corresponding second model string of characters is present in the database for which a distance to any one of the first string of characters and/or the at least one first model string of characters is below a third predefined threshold; and
(c) if at least one string of characters of the at least one second string of characters and the at least one corresponding second model string of characters is found, the distance of which to any one of the first string of characters and/or the at least one first model string of characters is below the third predefined threshold, outputting or causing outputting the confirmation information.

9. The apparatus according to claim 5 ,
wherein for each one of the at least one first model string of characters, the first model set of height levels of the corresponding sections of the at least a part of the surface of the first sealed unit is obtained by calculating the height levels of the corresponding sections assuming different lighting conditions; and/or
wherein for eac

Assignees

• Oezyigit Ali
• Sal Baris Cem
• Deutsche Post Ag

Inventors

• Özyigit Ali
• Sal Baris Cem

Classifications

• G16H20/13 Primary

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• G06T7/0004

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• G06V10/141

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• G06V10/40

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• G06V20/66

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