Consumer product packaging with a visible code, system comprising the packaging and method for framing the visible code

1 . A packaging for a consumer product, the packaging comprising a first visible code, the first visible code having associated therewith a first maximum reading distance of a camera and a first information density, wherein the packaging further comprises a second visible code having a second maximum reading distance of the camera and a second information density, and wherein:

the first maximum distance is smaller than the second maximum distance;

the first information density is greater than the second information density;

and the second visible code contains information relating to the relative position of the first visible code with respect to the second visible code.

2 . The packaging according to claim 1 , wherein the first visible code is a high-density code such as a QR code, a Data Matrix code, a barcode, a MaxiCode, a PDF417 code, or an Aztec code.

3 . The packaging according to claim 1 , wherein the first visible code is a date.

4 . The packaging according to claim 1 , wherein the second visible code is a long-range code such as an ArUCo code, AprilTag, ARTag, ARToolKit, or ddTags.

5 . The packaging according to claim 1 , wherein the first code and the second code are arranged adjacent to one another and in the same plane, with several pairs of the first code and the second code being able to exist together on the product.

6 . A system comprising a packaging according to claim 1 and a device provided with a camera.

7 . The system according to claim 6 , wherein the device is configured to carry out the following steps:

a) detecting and reading the second visible code with the camera being arranged at a distance greater than the first maximum distance and smaller than the second maximum distance;

b) extracting from the second visible code information relating to the relative position of the first visible code with respect to the second visible code;

c) framing based on said information the image region in which the first visible code is located; and

d) extracting information contained in the first visible code based on the framing.

8 . The system according to claim 7 , wherein the device is configured to perform a subsequent step consisting of displaying an enlarged image of the first visible code on a screen.

9 . The system according to claim 7 , wherein the first code and the second code are arranged in an oblique plane with respect to the line of view of the camera, wherein the device is configured to obtain, after step b), information about the orientation of the second code, infer a transformation that converts the image of the second code into a vertical representation, and to apply, after step c), the same transformation to the image of the first visible code.

10 . The system according to claim 7 , wherein in step c) the device is configured to focus on the image region in which the first visible code is located.

11 . A method for framing a visible code, the visible code being arranged in the packaging according to claim 1 , wherein a device provided with a camera is used, the method including the following steps:

a) detecting and reading the second visible code with the camera being arranged at a distance greater than the first maximum distance and smaller than the second maximum distance;

b) extracting from the second visible code information relating to the relative position of the first visible code with respect to the second visible code;

c) framing based on said information the image region in which the first visible code is located; and

d) extracting information contained in the first visible code based on the framing.

12 . The method according to claim 11 , wherein step c) is performed by focusing on the image region in which the first visible code is located.

13 . The method according to claim 12 , comprising a subsequent step consisting of displaying an enlarged image of the first visible code on a screen.

14 . The method according to claim 11 , wherein the first code and the second code are arranged in an oblique plane with respect to the line of view of the camera, wherein, after step b), information about the orientation of the second code is obtained, a transformation that converts the image of the second code into a vertical representation is inferred, and wherein, after step c), the same transformation is applied to the image of the first visible code.