SYSTEM AND METHOD FOR GENERATING ELEMENTS CONTAINING QUICK RESPONSE CODES

DESCRIPTION

The object of the present invention is a system for duplicating QR codes on three-dimensional target elements.

The invention falls within the sector of use of "Quick Response" codes (hereinafter referred to as "QR codes"), which have long been used in the fields of logistics and, especially, promotional, thanks to the greater flexibility of use and storage capacity of informational data compared to the standard bar codes (or similar identification systems).

In brief, the QR code consist of a two-dimensional matrix with square shape and white background, wherein a series of black modules, of various shapes and positions, are arranged: the succession of said black modules and white spaces of the matrix background defines a unique and characteristic code, to which corresponds a predetermined content, capable of disclosing any time the code is decoded by suitable reading instruments.

More precisely, a unique stored information corresponds to each QR code, capable of carrying out any communication and information content, starting from text messages, alphanumerical sequences, images, up to multimedia and websites links.

Considering that over 7,000 numeric characters and over 4,000 alphanumeric characters may be contained in a single QR code, it is clear that it is a highly customisable instrument in terms of information contained and coded therein. For a more exhaustive description of the operation and fundamental features of a QR code, reference should be made to patent JP 4258794 and to the corresponding document EP 0672994 held by Denso Wave Corp., which made public and usable with free licence this technology, which had long become an international standard (with initial diffusion in the Eastern countries and, more recently, in the rest of the world).

For a quicker understanding of the present invention, it is hereby sufficient to specify only some peculiarities underlying the QR code and its operation mechanism.

Both the writing and reading step of a QR code may be easily implemented by means of free software and instruments, capable of coding the desired information in the two-dimensional matrix, which can then be decoded by the dedicated software (the so-called "QR reader"), typically represented by a scanner adapted to recognise and read said code: said scanning software is natively present or installable in the most widespread smartphones and mobile phones.

In addition, an error detection and correction system (precisely, the so-called Reed-Solomon system) is implemented in each QR code, providing the code reader with the capability of correcting and recovering the wrong or missing QR code portions, up to about 30% of the coded information: this is very important in cases where the QR code matrix is partly damaged or missing for accidental or deliberate reasons: in this last case it is mainly for aesthetic reasons, where the intent is to artfully intervene on the original QR code in order to adapt it to marketing and/or artistic needs.

Despite the unlimited codability of the content storable in a QR code and the partial exterior modifiability allowed by the error correction system, the QR code has a certain rigidity in terms of aesthetic appeal and operation.

In fact, the QR code consists of, always and in any case, a black and white two- dimensional matrix, composed of repetitive and schematic geometrical elements (starting from the three large pointing squares placed at the corners), certainly of little aesthetic appeal, which could cause, a loss of interest in the use thereof within the promotional, information and commercial sector, over time.

The object of the present invention is to obviate this kind of drawbacks, by providing a procedure for duplicating the QR code and the consequent attainment of a coded target element, capable of overcoming the two- dimensional and aesthetic physical limits of the same QR code.

A further object of the present invention is to provide an apparatus for the implementation of said procedure, so that it can be implemented on a multitude of physical or virtual three-dimensional target elements.

These and other objects, which shall appear clearly hereinafter, are achieved with a procedure for duplicating a QR code on a target element, according to claim 1, and with an apparatus for the implementation of said procedure, according to claim 12.

Other objects can also be obtained through the additional features of the dependent claims.

Further features of the present invention shall be better highlighted by the following description of some preferred embodiments, in accordance with the patent claims and illustrated, by way of a non-limiting example, in the enclosed drawing tables, wherein:

Fig. 1 shows a QR code, representing the starting element of the procedure according to an illustrative variant of the invention;

Figs. 2 to 6 show the various steps of the procedure for duplicating a QR code on a target element, according to said first illustrative variant of the invention; more precisely, as shall be specified in detail hereinafter:

Fig. 2 shows the (physical or virtual) space housing the target element whereon said QR code of fig. 1 may be duplicated;

Figs. 3 to 5 illustrate intermediate steps of the reconstruction/reprocessing of said QR code on said target element;

Fig. 6 show the target element whereon said QR code is duplicated, placed in the space of fig. 2;

- Figs. 7 to 13 show the various steps of the procedure for duplicating a QR code on a target element, according to a second illustrative variant of the invention; more precisely, as shall be specified in detail hereinafter:

Fig. 7 shows a QR code, representing the starting element of the procedure according to said second illustrative variant of the invention;

- Figs. 8a and 8b show an intermediate element for duplicating said

QR code of fig. 7;

Fig. 9 shows the (physical) space housing the target element whereon said QR code may be duplicated;

Figs. 10 to 12 illustrate intermediate steps of the reconstruction/reprocessing procedure of said QR code on said target element through the intermediate element of figs. 8a or 8b;

Fig. 13 show the target element whereon said QR code is duplicated, placed in the space of fig. 7.

The features of the invention are now described using the references in the figures. It is noted that the above figures, although schematic, reproduce the various steps of the procedure and the system components in proportions between their dimensions and spatial orientations which are compatible with the possible embodiment of the variant shown in the same figures. It is also noted that any dimensional and spatial term (such as "lower", "upper", "inner", "outer", "front", "rear" and the like) refers to the position according to which the system elements are shown in the annexed figures, without any limiting intent relative to the possible operating conditions.

Hereinafter, the term "coded object" refers to the target element whereon the QR code is duplicated, where "target element", in turn, comprises any (physical or virtual) representation of an element having a predetermined spatially definable three-dimensional development.

More precisely the "coded object" according to the invention may be expressed both with virtual images and physical objects, and the latter both with elements directly constituting said coded object and elements that are preparatory to the subsequent generation of said coded object. Said synthetic definitions will be clarified in greater detail in the description. According to a preferred embodiment, the procedure for duplicating a QR code on said coded object, is composed of a sequence of steps, which will be shortly progressively described hereinafter:

a) creation of the starting QR code;

b) implementation of the QR code in the three-dimensional space, shown with known display instruments;

c) duplication, through reconstruction or reprocessing, of the QR code on the coded object, placed in the three-dimensional space;

d) attainment of the final coded object.

Let's now describe in detail the single steps listed, with particular reference to the illustrative variants shown in the annexed figures,

a) Creation of the QR code

As said, in fig. 1 reference 1 indicates a typical QR code, coding the desired content of the author, and created through one of the various free software for generating QR codes.

The QR 1 code has all the characteristics of a standard QR code, visually resolving in a two-dimensional matrix having square shape, wherein a series of black modules on a white background are arranged, according to the spatial arrangement resulting from the coding of the information contained in the QR code.

In conclusion, it is the succession of black modules and white background spaces (hereinafter, simply, "black code N" and "white code B") to make the QR code characterising: the information contained in the QR code, thus, gives life to a new unique matrix, which may not be obtained by coding different information; in short, each coded information produces a single and peculiar matrix of black code N and white code B and, vice versa, each QR code decodes for a single and unique information.

In common to each generated QR code is, instead, the presence of three large pointing squares, placed at the corner of the matrix: with the references NQ1, NQ2 and NQ3 said three pointing squares of black code N are shown, each comprising an external delimiting frame, wherein a square is placed.

They actually carry out the function of allowing the recognition of positioning and orientation of the QR code by the reading scanner, according to the reading procedure described in said prior patent EP 0672994.

Actually, thanks to the capability of correcting the QR code by the scanning software, it has been verified that it is possible to obtain a correct interpretation of the matrix even in cases where the outer delimiting frame of said pointing squares is partly missing or damaged, it being understood the performance of predetermined minimum requirements, which shall be explained hereinafter.

Said possibility has practical relevance profiles in the implementation of the procedure of the present patent, particularly in the duplication step of the QR 1 code on the coded object.

b) Implementation of the QR code in the three-dimensional space

Once the QR 1 code is generated, it is displayed on a screen by means of known display instruments, such as, for example, a monitor (analogue, digital, two or three-dimensional), a projection (analogue, digital or holographic) or other optical display.

With the same display instrument it is also shown on-screen the three- dimensional space, intended to receive the QR 1 code and the final coded object. Said three-dimensional space (for shortness hereinafter referred to as "S3D") may consist of a representative image of a real environment, filmed by video- photographic instruments, live, continuously or at a previous time; as an alternative, it may consist of a virtual environment, previously generated through information instruments for processing 2D images or 3D environments.

In the example of fig. 2, said S3D, indicated with reference numeral 2, consists of a room with substantially light colour walls and flooring.

Through any multilevel graphical processing software, the QR 1 code is applied on the representative image of said S3D 2, suitably subjected to adjustment of the contrast levels of black code N and to a removal operation of the white code B, as shown in fig. 3.

In the example shown, since the S3D 2 is representative of a substantially empty room, the positioning of said QR 1 code may be carried out in any area thereof, at user discretion.

On the other hand, if the S3D is an environment provided with (real or. virtual) elements, spatially arranged in predetermined points thereof, it can be appropriate to place the QR 1 code in a specific area, that is according to the criteria of making one or more of said elements coincide, at least partly, with one or more portions of black code N or white code B of said QR 1 code.

However, as shall be explained hereinafter, said collimation requirement is absolutely not mandatory, due to the great possibility of manual or digital reprocessing and repositioning provided by the procedure and by the apparatus of the present invention.

The adjustment actions of the QR 1 code contrast (and/or of the same image of the S3D 2, where necessary) and removal of the white code B of the QR 1 code, are aimed to an easier reconstruction and reprocessing step of the code in the S3D 2, in order to obtain the coded object OC.

For the same reason it may be advisable to implement a change in the transparency degree of the black code N of the QR 1 code, in order to make partly visible the portions of the S3D 2, underlying the positioning level of said QR 1 code (see fig. 4).

c) Duplication of the QR code on the coded object

Figs. 4 and 5 show the steps of the procedure for duplicating the QR 1 code, through the reconstruction and/or reprocessing thereof in the S3D 2, up to obtaining the coded object (hereinafter indicated in short with "OC").

As mentioned above, the error recognition and correction capabilities of a QR code up to about a 30% of wrong or damaged code, intrinsic of the reading and decoding software, allow a certain degree of modifiability of the black code N. In the black code N portions corresponding to the three pointing squares NQ1, NQ2 and NQ3, it is even possible to remove an even greater percentage of code, without affecting the recognition of positioning and orientation of the QR 1 code by the reading software.

It is instead not recommended to manipulate the QR 1 code portions at the vertical band underlying the pointing square NQ1 on top right, since said portion contains fundamental information for the correct recognition of the code and the orientation thereof.

Fig. 4 shows an example of deletion of N code portions in the outer delimiting frame of the pointing square NQ3, positioned in the lower left corner of the QR 1 code matrix: in order to keep its functionality, it is sufficient that only the four squares NQ3Q positioned at the vertical - horizontal symmetry axes of the pointing square NQ3 remain.

From this possibility of removing portions of black code N (associated to the automatic error correction system which has been often mentioned), without impairing the correct decoding of the QR 1 code, derives a considerable increase of freedom of the user for the reconstruction and duplication of said QR 1 code, in order to obtain the OC.

In fact, the procedure of the present invention continues with the selection and positioning of suitable three-dimensional elements, having specific shape and colour features, substituting predetermined black code N and white code B portions of the QR 1 code.

The example shown in fig. 5 serves to explain what just mentioned: in said figure, the pointing square NQ1 (on top right of the matrix) is replaced by the image of a television screen, having shape, dimension and colour comparable to that of the original black code N square.

The same applies for the other three-dimensional elements, arranged for replacing black code N and white code B portions, substantially similar to them by shape, dimension and colour (or, in other words, compatible with them from the viewpoint of decoding the QR 1 code, as explained hereinafter).

Therefore, an armchair E3 can be placed as a replacement of the pointing square NQ3, taking into account that the three-dimensional image thereof must be substantially and perspectively correspondent to that of the original pointing square, as well as the colour of the seat must be black or in any case sufficiently dark so that the scanning software recognises it as a portion of black code N. Likewise, the legs of said armchair must have a reduced thickness or sufficiently light colour, such that they are brought back within the portion of the white code B, and recognised as such in the next decoding step of code QR 1 duplicated on the OC.

In correspondence of the pointing square NQ2 (on top left of the matrix), the black code N square is replaced by an element E2.1, corresponding to a picture canvas.

Reference E4 shows a white chandelier (or in any case sufficiently light to be recognised as a portion of white code B by the QR code reading scanner), descending from the room ceiling representing the S3D 2 and placed in a portion of white code B of the QR 1 code.

The procedure for duplicating said QR 1 code may continue until its portions of black code N and white code B are fully replaced with other three-dimensional elements El, E2, .... EN; for example, other elements compatible with the S3D 2 may consist in furniture, shelves, furnishings, vases or others, having such a shape, dimension and colour so as to be able to be positioned as a replacement for said black code N and white code B.

As an alternative, said reconstruction and reprocessing procedure may also stop after some allocation steps of the three-dimensional elements El, E2, .... EN, without reaching the total replacement of the original QR 1 code: the choice is at user discretion and according to his will and imagination.

The discretion in the reprocessing of the QR 1 code is further increased by the already mentioned possibility of formal variation of the black code N portions and, as a result, of the three-dimensional elements El, E2, .... EN to be placed for the substitution thereof.

Therefore, it is also possible to use three-dimensional elements El, E2, .... EN having shapes not exactly matching with the black code N portions to be replaced, being able, for example, to use a three-dimensional element having spherical shape or curvilinear elements, which, correctly allocated, shall be in any case recognised as correct code if their variability falls within the percentage of error recognition, allowed by the scanner for decoding the QR code.

As seen, said procedure for duplicating the QR 1 code in the S3D 2, by replacing the two-dimensional code portions of said QR 1 code with suitable three- dimensional elements El, E2, .... EN, envisages that each replacement is followed by the step of deletion of the replaced code portion, by means of manual or semi-automatic removal, on user confirmation, by the multilevel graphical processing software.

However this operation is associated to a continuous control step, in order to verify that the three-dimensional element replacing the QR 1 code portion is validly recognised as suitable (by shape, dimension and colour) to carry out the same decoding function, natively performed by the original QR 1 code portion replaced.

This verification is carried out by a system comprising the association of an additional software to the multilevel graphical processing software: said additional software consist of the QR code reading scanner, whose recursive operation allows checking continuously the correct arrangement of the three- dimensional elements El _s E2, .... EN in place of the native QR 1 code portions. Therefore, any time there is a replacement of a three-dimensional element El, E2, .... EN to the portion of two-dimensional code of QR 1 , the scanner ensures whether the partial OC (whereon said QR 1 code is being duplicated through the reconstruction/reprocessing thereof) is capable of correctly decoding the information initially coded in the starting QR 1 code.

In case said continuous verification gives a positive result, it is possible to proceed with the deletion of the black code N or white code B of the QR 1 code matrix, being certain that the replacing three-dimensional element El, E2, .... EN is suitable to decode for the same content of said native QR 1 code.

Otherwise, instead, the deletion step of the replaced QR 1 code portion is not carried out, because the three-dimensional element El, E2 .... EN that is used has been proved to be unsuitable for decoding for the same content of said native QR 1 code, since it is different by shape, dimension or colour relative to the black code N or white code B portion to be replaced, or because it is perspectively positioned incorrectly in the S3D 2.

In this second case, therefore, it is necessary to move back through the procedure until the step preceding the replacement of the QR 1 code portion with the three- dimensional element El, E2, .... EN which revealed to be unsuitable (operation allowed by the graphical processing software in use, as well as in almost all software already known), in order to use a new three-dimensional element El, E2, .... EN and proceed to its suitability check through the reading scanner.

In fact, the three-dimensional element placed may be too different (by shape, dimension and colour) from the replaced QR lcode portion, to the point that the scanner error correction system is not sufficient to compensate such difference because the same error tolerance has been exceeded: in that case, the user understands that it is necessary to increase the compatibility of the three- dimensional element with said QR 1 code portion to be replaced, using a different three-dimensional element El, E2, .... EN that is found to be more similar to the original code.

Thanks to this continuous control step, it is possible to test the OC in construction, step by step, and to notice immediately any error in the selection or positioning of the three-dimensional element in place of the QR 1 portion to be replaced.

In the example of fig. 5 the element E2.2, representing the canvas frame E2.1 and positioned as a replacement of the outer frame of the pointing square NQ2, is not an element suitable for being recognised by the scanner as decoding the same content of the QR 1 code, since its thickness is too small relative to the native black code N portion.

It is therefore necessary to use a different three-dimensional element El, E2, .... EN or to thicken the element E2.2 originally used, so that the control system through the reading scanner gives the go-ahead to the replacement operation. The connection of the scanner to the system may be obtained in several ways: it is possible, for example, to position the scanner camera facing the screen that displays the S3D , the QR 1 code and the OC; or, in order to improve the visibility and operating convenience, it is possible to use a second video output and divert the content shown on a second screen, in front of which said reading scanner is to be placed.

The common QR code scanners already have a focus and light self-adjusting system, such that there are not any problems for said reading scanner to identify and decode the QR 1 code (native or modified as described above) shown onscreen.

However, it has been verified through empirical tests that it is preferable to place the scanner at a distance generally double relative to the dimension of the QR code to be detected, displayed on the screen. Due to the huge variations of perimeter detection of the QR code among different scanning software available in the industry, it is also advisable to carry out a preliminary positioning operation and a manual-visual adjustment during the first positioning of the scanner, in order to obtain the full functionality of the reading system, d) Attainment of the final coded object

The example of fig. 6 shows the OC 3 obtained from the procedure of reconstruction/reprocessing of the initial QR 1 code on the S3D 2.

Actually, the figure shows a partial progress in the attainment of the final OC 3 but, as mentioned above, the duplication of the QR 1 code may also stop after some allocation steps of the three-dimensional elements El, E2, .... EN, without reaching the total replacement of the original QR 1 code.

The OC 3 obtained, once subject to reading by the scanner, decodes exactly the same information contained in the starting QR 1 code, although it is so different by exterior shapes from said QR 1 code to be virtually unrecognisable to the human eye.

The OC 3 resulting from the example shown in the annexed figures consists of a virtual image, consisting of the allocation of purely virtual elements.

Nevertheless, the same identical procedure may be implemented for obtaining an OC 3 through the correct positioning of physical elements present in one S3D 2 actually existing, wherein the arrangement of the three-dimensional elements El, E2, .... EN in place of the relative QR 1 code portions does not take place through the on-screen graphical processing software (or, at least non only through it), but by means of physical movements and material adjustments of said elements actually available in the S3D 2.

In this case, in practice, the OC 3 consists of a real three-dimensional environment, suitably set up and directly decodable by the QR code reading scanner.

According to a variant of the present invention, there is also the possibility that the above-described procedure ends with the generation of an intermediate OC 3' which, although being per se already decodable by the QR code reading scanner, may actually be used as a shaped mask for the creation of a final OC 3, through reconstruction operations with really existing or actually constructible three- dimensional elements.

More precisely, said shaped mask, after its transformation into a physical object having dimensions suitable for the final OC 3 to be obtained, acts as a template for the subsequent material realisation of the OC 3, which as well decodes the correct information initially contained in the starting QR 1 code.

The realisation of said shaped mask into a physical object usable as a template, may be carried out through the association of the above described system to known instruments for typographic printing (also intaglio), three-dimensional printing (also by additive manufacturing), quick prototyping or sintering. As an alternative, said template may be materially constructed by manual or industrial operations.

The advantage of said embodiment variant with the template representing an intermediate OC 3', lies in its characteristics of tangible materiality and reusability over time, so as to be used for the serial and repeated attainment of final OC 3, that is for the mass production of OC 3, all decoding the same content of the starting QR 1 code.

While the steps of the above described procedure remain unchanged, it is obvious that the correct decodability of the final OC 3 resulting from this embodiment variant is ensured as far as possible when the starting QR 1 code applied on the S3D 2 is less subject to manipulation, that is when the intermediate OC 3' (represented by said template) is more similar to the starting QR 1 code.

For those reasons, in this particular variant, the procedure for duplicating the intermediate OC 3' may also stop during the initial steps, after only some modification operations of the two-dimensional matrix of the starting QR1 code or after few replacements of three-dimensional elements to the black code N or white code B; or the procedure may even stop at the end of the implementation step of said starting QR 1 code on the S3D 2, to proceed immediately to the attainment of the shaped mask for the subsequent physical realisation of the final OC 3.

Figures 7 to 13 chronologically show the different steps of the variant of the present invention wherein said intermediate OC 3' is used for obtaining the final OC 3.

Leaving unchanged the procedural steps previously described and shown in figs 1 to 6, it is hereinafter sufficient to focus only on the distinctive elements.

The starting step still consists of the creation of a QR 1 code, coding the desired content (fig. 7).

Subsequently, the implementation step of said QR 1 code in the S3D 2 and the duplication step is carried out, by means of the reconstruction and/or reprocessing thereof, to arrive to an intermediate OC 3' which, through suitable printing or manufacturing processes, materially consists of a template, acting as a shaped mask for creating the final OC 3.

In the specific case, said intermediate OC 3' is shown in figs 8a and 8b and is physically represented by a grid comprising a series of cells which, suitably left open (empty cells) or subject to closure (full cells) duplicate the two-dimensional matrix of the starting QR 1 code, identifying the white code B and black code N portions of said QR 1 code.

In conclusion, in said illustrative variant the intermediate OC 3' has been obtained immediately at the end of the implementation step of said starting QR 1 code on the S3D 2; but obviously said grid OC 3' may also be representative of the QR 1 code partly reconstructed/reprocessed after some allocation steps of three-dimensional elements El, E2, .... EN in place of said black code N and white code B portion, always in accordance with the procedure described above. Once the realisation of said template (that is the intermediate OC 3') has been materially carried out, it can be used for the actual creation of the final OC 3. This tangible creation of the final OC 3 may be carried out using the intermediate OC 3' as a shaped mask for the correct positioning of the three- dimensional elements El, E2, .... EN suitable for recreating the black code N and white code B on the underlying S3D 2, by means of known manual or semiautomatic allocation techniques.

Fig. 8a shows a variant of the intermediate OC 3' wherein the grid cells left open identify the black code N, while those closed identify the white code B of the QR 1 code.

In that case, in practice, said intermediate OC 3' acts as an actual template, guiding the user in the positioning of suitable three-dimensional elements for the correct duplication of the black code N on said S3D 2: the techniques that may be used are the most different, such as, for example, gravity positioning of the three-dimensional elements, or their duplication by spray or brush painting, always using the cells left open on said grid OC 3'.

With an intermediate OC 3' thus obtained, it is clear that it is preferable that the S3D 2 is an element with a white or substantially light coloured surface, so as to natively act as a white code B whereon the three-dimensional elements are arranged in place of the black code N portions: however, nothing prevents that the white code B portions may be recreated by difference or reprocessed directly on the S3D 2, once the three-dimensional elements decoding for the black code N have been positioned, with said intermediate OC 3' and with the above- mentioned techniques.

Vice versa, in case the intermediate OC 3' consists of a template whose grid has cells left open identifying the white code B and closed cells identifying the black code N (as shown in the example of fig. 8b), it is preferable that the S3D 2 is an element with a dark surface, since with said OC 3' the white code B portions of the QR 1 code are recreated.

Whichever the intermediate OC 3' used is, the possibility remains of applying the next control and verification steps (through the scanner reading system described above), in order to ensure that the three-dimensional element replacing the QR 1 code portion is validly recognised as suitable (by shape, dimension and colour) to carry out the same decoding function, natively performed by the original QR lcode portion replaced.

Nevertheless it should be noted that said continuous control step may also be redundant and have only an additional function of mere assessment of attainment of the desired decoding, because the recreation of the final OC 3 is in any case performed with the aid of the intermediate OC 3', which has already successfully passed said verification steps and it is already certain that it decodes correctly for the same content of the starting QR 1 code.

However, in the event that the final OC 3 consists of an object (for example of the culinary sector) the three-dimensional elements thereof have particularly variable and aleatory peculiarities which, despite the use of the correct intermediate OC 3', may result in uncertain or incorrect decoding, then it is possible to proceed with the replication of the continuous control steps during the duplication of the QR 1 code on the S3D 2, always in accordance with the procedure and system of the present invention.

Figs. 9 to 13 show the steps of the procedure for duplicating the QR 1 code, through the reconstruction and/or reprocessing thereof in the S3D 2 thanks to the aid of the intermediate OC 3' and with the continuous control allowed by the system comprising the QR code reading scanner..

Specifically, the intermediate OC 3' consists of the template shown in fig. 8b, while the S3D2 is represented by a pizza dough (fig. 9), whereon said OC 3' is implemented (fig. 10).

The user provides for the selection and positioning of the suitable three- dimensional elements El, E2, .... EN, which, always with particular reference to the case shown in the figures, replace the black code N portions of the intermediate OC 3' (herein represented by the closed cells of the template grid), which can then be removed if the scanner recognises said three-dimensional elements as suitable for decoding the initial QR 1 code.

On account of the concrete materiality of the intermediate OC 3', "removal of the replaced black code N portions" should mean that the closed cells of the grid are physically converted into open cells, so that the template may show the back S3D2 and allow the scanner to read the OC 3 in construction and to verify the correct decodability thereof.

To this end, in the particular variant in which said template OC 3' consists of a grid, it is obvious that it can be envisaged that its cells may be variably left open or subject to closure, so that a single grid is capable to act as a material support for duplicating the multiple templates OC 3', according to the succession of said open and closed cells replicating several starting QR 1.

Fig. 1 1 shows how the pointing square NQl is reconstructed on the S3D 2 by means of a couple of olives El.2 and a mussel El .l ; in fig. 12 it can be seen how this last three-dimensional element El.l has been replaced by a slice of salami Ε1. , because the verification through scanner has detected the unsuitability of said mussel El .l to replace the black code N portion, unlike said slice of salami El .l' which is, instead, able to be validly recognised as a tree-dimensional element suitable for decoding the same content of the QR 1 code.

The reconstruction procedure of the starting QR 1 code, shown in the intermediate OC 3' and thanks to this, on the target S3D 2, can continue up to obtaining the final OC 3, in this case represented by the pizza shown in fig. 13. Duly garnished with ingredients suitable for acting as three-dimensional elements replacing the respective portions of the starting QR 1 code, said final OC 3 decodes exactly the same information contained in said QR 1, once it is subject to reading by the scanner according to the particular perspective inclination set out at the beginning of the duplication procedure.

The objects and advantages that may be achieved appear clearly from the description of the procedure and apparatus just described.

The present invention exceeds the physical two-dimensional limits of the graphics representing the starting QR 1 code, to extend to the huge three- dimensional perspective, both physical and virtual, so as to allow unlimited variations, only limited by the artistic creativity and imagination of the OC 3 creator.

The procedure and system, object of the present invention, allow the easy replication of some types of three-dimensional environments, which may be identified in specific objects of the most various nature, including those of artistic figurative, culinary, mechanical, building, architectural type, and others. With the present invention, in practice, it is possible to obtain OC 3, even not recognisable at first sight by the human eye because of the perspective inclination to be used, but correctly decodable by the QR code scanner, once the right axonometric reading perspective is given (that is the same perspective by which said QR 1 code has been implemented in the S3D 2).

In other words, said OC 3 can be embodied in a three-dimensional element which is visually different from the starting QR 1 code and, for that reason, not easily identifiable as such by the human eye; however it is absolutely capable to decode the same information contained in said QR 1, when subject to reading in accordance with the suitable parameters used for its implementation in the S3D 2 (that is, with the same criteria in terms of distance, depth and perspective axonometry).

This allows creating OC 3 showing in physical or virtual environments which decode the most various contents: mimetic messages, surprising advertising spots, visual and multimedia meta-works relating the visual and pictorial- sculptural arts to those of other nature, advertising pictures, etc.

This prerogative of the OC 3 containing the starting QR 1 code not being easily recognisable by the human eye is further amplified by the possibility that between said OC 3 and QR 1 there is a considerable exterior difference, up to the point that one may not be easily associated to the other (even where the human eye is able to to identify a code from it, an event that, as said, is not at all expected but obviously possible).

More precisely, thanks to the procedure for duplicating the QR 1 for obtaining the OC 3 described in the present invention and to the correction capability of the scanning software, the OC 3 may be without a certain percentage of code portions, especially in the areas corresponding to the pointing squares NQ1, NQ2 and NQ3 (the external frames whereof may also limit to keep the vertical and horizontal symmetry points), so as to considerably differentiate it from the starting QR 1 code: once again it should be noted that said visual discrepancy relates exclusively to the exterior shape of the OC 3 relative to said starting QR 1, while the essential characteristic that the OC 3 still decodes the identical information contained in the starting QR 1 remains unaffected.

It is clear that several variants of the procedure and system for duplicating the QR 1 code on the OC 3, described above, are possible to the man skilled in the art, without departing from the novelty scopes of the inventive idea, as well as it is clear that in the practical embodiment of the invention, the various components described above may be replaced with technically equivalent ones. For example, in the demonstration variants described above, reference has always been made to the reprocessing/reconstruction of the QR 1 code in the SD3 2 for obtaining the OC 3 through manual or semi-automatic operations, that is by means of the correct perspective positioning of the three-dimensional elements El, E2, .... EN, through material movements of physical objects in a real setup environment or through movements of incorporeal objects in a virtual environment with the graphical processing software. However, it may also be provided a completely automated variant, wherein the same graphical processing software is related to software for managing, creating and/or selecting three-dimensional elements El, E2, .... EN more suitable for being replaced to the QR 1 code portions to be replaced, always in accordance with the above-mentioned shape, dimension and colour compatibility criteria. Or said completely automated variant may be obtained by means of a suitable additional software that instructs a robotic clamp, or similar instruments, to select and place correctly said three-dimensional elements in the S3D 2.

With reference to the colour requirement of the three-dimensional element replacing a predetermined portion of black code N or white code B of the two- dimensional matrix of the starting QR 1 code, it should be underlined that said colour must not be necessarily white or black, but simply attributable to the two categories of black code N or white code B by the scanning software.

Therefore, it shall be possible to use (real or virtual) three-dimensional elements having a wide variety of chromaticities, such as paints (applied to real three- dimensional elements) reactive to UV light or sensitive to frequency spectrums which may be even invisible to the human eye, suitable for highlighting autofluorescence characteristics or revealing if and when loaded with natural or artificial light of suitable frequency: the fundamental principle is that the colours of said three-dimensional elements El, E2, .... EN are interpreted as white or black by the scanner (in other words one colour range is interpreted as "white", while the remaining range is interpreted as "black") and the three-dimensional element is correctly allocated as a replacement of the respective portion of black code N and white code B of the QR 1 code, being all checks carried out by the above-described procedure and system.

In the variant wherein a template is used having the function of intermediate OC 3' for the creation of the final OC 3, it may be provided that said template consists of a sheet pre-printed through a cutting plotter, according to the intaglio typographic printing technology.

In this case, said intermediate OC 3' may be directly pasted or juxtaposed to the 0147

S3D 2 and its diecuts to act as area whereon the correct three-dimensional elements may be placed (with the many different techniques above, such as painting, manual decoration, gravity positioning, brush or spray application, etc.) in place of the respective portions of white code B or black code N of the QR 1 code.

As the reproduction of said QR 1 code is carried out, the intermediate OC 3' is increasingly removed for the relative part already duplicated, always and only if the three-dimensional element used has successfully passed the verification test through the scanner.

A further variant of intermediate OC 3' may be represented by the projection of a template on the S3D 2 (or back-projection, in case said S3D 2 consists of cloth, curtains, semi-transparent lamps, plexiglass, various fabrics, usually materials with a certain degree of transparency; or, again, micro-projection in case said S3D 2 has very small dimensions): said OC 3' always acts as a template indicating the physical areas whereon the various portions of black code N and white code B of the original QR1 code can be duplicated, by means of the known techniques already described.

It must be underlined that in the above-described variants wherein a template is used with the function of intermediate OC 3' for obtaining the final OC 3, reference has always been made to a template having dimensions substantially similar to those of said OC 3, on the basis that it is juxtaposable or in any case approachable in close proximity with S3D 2.

However, this option could not be possible, due to physical impediments which impede the approach of the intermediate OC 3' to the S3D 2: it will be therefore necessary to place the template at a greater distance from said S3D 2, by suitably scaling down the dimensions of the same template and the relevant portions of white code B and black code N (that is the relevant cells, in the example of the grid of the annexed figures), according to the common rules of optics and perspective, so that it continues to act as a suitable shaped mask for obtaining the final OC 3. The same applies in case the scanner and the video-photographic instrument must be placed further for the on-screen display of the S3D2 and the OC 3', it being understood the need for a preliminary operation of positioning and a manual-visual adjustment of said means, in order to obtain full functionality of the reading system.