Various implementations disclosed herein include multi-scale visual markers that convey information in multiple sets of markings using different respective appearance attributes. In some implementations, the appearance attribute of the markings of a first set of markings corresponds to a first encoding parameter and the appearance attribute of markings of a second set of markings corresponds to a second encoding parameter different from the first encoding parameter. In some implementations, the first set of markings encode first data and the second set of markings are different than the first set of markings and encode second data. In some implementations, the different appearance attributes are different scales (e.g., different sizes, different numbers of markings per unit of space, different contrast, different color characteristics, different wavelengths, different image sensor types, etc.).

The present disclosure relates to signal processing such as image processing, signal encoding, digital watermarking and data hiding. A sparse or dense digital watermark signal can be conveyed with a narrow-band absorption material corresponding to a center wavelength of a Point of Sale (POS) barcode scanner. The POS barcode scanner typically captures 2D imagery. Since the narrow-band absorption material absorbs over a narrow-band it is relatively imperceptible to the Human Visual System (HVS) but can be seen by the POS scanner.

A physical object having a programmable, electronically readable tag can be identified and tracked in a given third party system with the aid of an identity services platform. When the owner of the object is about to place it in the custody of a third party system, the owner can use a client device to instruct the identity services platform to generate a nonce, for programming into the object's tag. Devices in the third party system read and use the nonce to identify and track the object and to make decisions about how it is handled. When the object exits from the control of the third party system for return to the owner, the identity services platform is asked to provide a proof of ownership to the third party system, which enables accurate return of the object to its proper owner.

Various implementations disclosed herein include multi-scale visual markers that convey information in multiple sets of markings using different respective appearance attributes. In some implementations, the appearance attribute of the markings of a first set of markings corresponds to a first encoding parameter and the appearance attribute of markings of a second set of markings corresponds to a second encoding parameter different from the first encoding parameter. In some implementations, the first set of markings encode first data and the second set of markings are different than the first set of markings and encode second data. In some implementations, the different appearance attributes are different scales (e.g., different sizes, different numbers of markings per unit of space, different contrast, different color characteristics, different wavelengths, different image sensor types, etc.).

For one-dimensional or two-dimensional images in which cells identified as bright-colored cells and cells identified as dark-colored cells are arranged in a matrix, the amount of information is further increased while the difficulty in reading information expressions are reduced. For this purpose, invented is a composite code comprising a first code, in which a plurality of cells each having a predetermined area are orderly arranged, and in which data is defined by each of the predetermined areas having one of two or more colors that can be distinguished from each other, and a second code in which special cells having an area other than the predetermined area form at least a part of the plurality of cells, and in which data is defined by distinguishable marks arranged at predetermined positions in the area other than the predetermined area.

Provided is a Device, a System, applications and an associated Ecosystem for the consistent and reliable production, creation, generation, management and utilization of two-dimensional (‘2D’) barcodes (‘Codes’) featuring embedded Images, designating the alignment position and alignment size of the embedding Images in 2D Codes and enabling the corresponding outputted Code files by the Device System to be downloaded and or showcased digitally within all forms of digital advertising, media, television, mobile telephony and the world wide web as well as integrated with the production processes for consumer products and packaged goods, printed products, merchandise and other items featuring such 2D Codes creating a public telecommunications platform and or private intranet services featuring a searchable database, directory and or registry of the 2D Codes with embedded Images that have been created by, produced by and outputted by the Device or System.

A method includes a first computer encoding input data into a sequence of two-dimensional barcodes, the first computer displaying an image of each of the two-dimensional barcodes on a display screen in sequential order, a second computer using an imaging device to capture each of the displayed images to obtain the sequence of two-dimensional barcodes, and the second computer decoding each of the two-dimensional barcodes to obtain the input data. Separately, a first computer may divide input data into a sequence of data segments, receiving a personal value from a second computer, and perform an iterated mathematical function that uses the personal value and the sequence of data segments to generate a sequence of parameter values. The first computer may then transmit the iterated function and the initial segment to the second computer through a first channel and transmit the parameter values to the second computer through a second channel.

Disclosed is a QR code extension method, comprising the following steps: S1. obtaining data encoding information, and determining the number of positioning points based on a data encoding length; S2. partitioning a data area according to different shapes, and adjusting a parameter of each data partition by adjusting the number of transverse and/or longitudinal unit QR codes; and S3, drawing a QR code, and outputting a result. The method is more flexible, and can make a QR code realize one-way or two-way extension, and the length and the width of a data area can be slightly adjusted to ensure that the capacity of the data area is close to the size of data information, so that capacity in per unit space is optimized.

Aspects of the present invention disclose a method, computer program product, and system for determining information based on a received image. The method includes one or more processors receiving image data from a computing device. The method further includes one or more processors identifying an object included in the received image data. The method further includes one or more processors determining a value that corresponds to the identified object included in the received image data. The method further includes one or more processors determining whether the determined value corresponds to a defined action. Another aspect of the present invention discloses an apparatus that includes a foreground label overlaying a background label, and a measurement device coupled to the foreground label. The measurement device is capable of movement in response to observing measurement data.

Provided is a method for marking an item comprising the steps of providing a first predetermined marking on the item; providing a second predetermined marking on the item at least partially overlapping with the first marking; and determining information dependent on a relationship between the first marking provided on the item and the second marking provided on the item. Further is provided an apparatus for providing a marking on an item, an apparatus for reading a marking on an item, a computer program, and a computer program product.