For providing an apparatus and method for providing a graphic representation (1, 2) or a graphic representation sequence for detection by a detector (3) which provide a simple and effective variation of a graphic representation (1, 2) or a graphic representation sequence for detection by the detector (3) an apparatus is claimed, comprising: at least one light source (4, 5) emitting at least one definable light colour or light colour spectrum, a coloured graphic representation (1, 2) or graphic representation sequence, wherein the at least one light source (4, 5) illuminates the coloured graphic representation (1, 2) or graphic representation sequence, so that depending on the at least one light colour or light colour spectrum the coloured graphic representation (1, 2) or a part of the coloured graphic representation (1, 2) is visible by the detector (3) with a predefinable intensity and/or colour or not, and a control unit (6) for defining and providing an illumination sequence of the at least one light source (4, 5) for providing a change of visibility of the graphic representation (1, 2) or of a part of the graphic representation (1, 2) by the detector (3). Further, a corresponding method is claimed.

The present invention relates to the field of anti-counterfeit protection of products. Specifically, the invention is directed to a composite security marking for a physical object, in particular to an anti-counterfeit product marking. In particular, without limitation, such composite security marking can be used in connection with or can form a component of a multi-component security system, in particular of an anti-counterfeit protection system, which is also disclosed herein as part of an overall solution for anti-counterfeit protection. The composite security marking comprises a physical unclonable function, PUF, and a representation of a digital signature or of a pointer indicating a location where said digital signature can be accessed. The digital signature digitally signs a hash value resulting from application of a predetermined cryptographic hash function to data representing a response generated by the PUF in reaction to a challenge of a predetermined challenge-response authentication scheme.

The present disclosure relates to the field of anti-counterfeit protection of products. Specifically, the disclosure is directed to a composite security marking for a physical object, in particular to an anti-counterfeit product marking. In particular, without limitation, such composite security marking can be used in connection with or can form a component of a multi-component security system, in particular of an anti-counterfeit protection system, which is also disclosed herein as part of an overall solution for anti-counterfeit protection. The composite security marking comprises a physical unclonable function, PUF, and a representation of a digital signature or of a pointer indicating a location where said digital signature can be accessed. The digital signature digitally signs a hash value resulting from application of a predetermined cryptographic hash function to data representing a response generated by the PUF in reaction to a challenge of a predetermined challenge-response authentication scheme.

The present invention relates to the field of anti-counterfeit protection of products. Specifically, the invention is directed to a composite security marking for a physical object, in particular to an anti-counterfeit product marking. In particular, without limitation, such composite security marking can be used in connection with or can form a component of a multi-component security system, in particular of an anti-counterfeit protection system, which is also disclosed herein as part of an overall solution for anti-counterfeit protection. The composite security marking comprises a physical unclonable function, PUF, and a representation of a digital signature or of a pointer indicating a location where said digital signature can be accessed. The digital signature digitally signs a hash value resulting from application of a predetermined cryptographic hash function to data representing a response generated by the PUF in reaction to a challenge of a predetermined challenge-response authentication scheme.

The present invention relates to systems, entities, and methods for certificates and certifications of documents, such as passports, licenses, degree certificates, and the like. More specifically, the present invention relates to re-certifying a document in the sense of verifying and/or renewing an already existing certificate/certification.

Disclosed is a Data Matrix (DM) code. An image of the DM code consists of several color blocks arranged in a rectangular array, a circle of color blocks on the edge of the image constitutes a positioning region, and the color blocks inside the image constitute a coding region; the positioning region includes an L-shaped edge and a positioning edge opposite to the L-shaped edge, wherein the colors of the color blocks include at least three of eight colors, the eight colors being three standard RGB colors, four standard CMYK colors, and white. The positioning edge is formed by alternately arranging color blocks of two colors that are black after filtering by a channel in any color of RGB and white after filtering by a channel in the same color.

An image processing apparatus includes an acquisition unit that acquires setting information acquired from a captured image, a setting unit that performs, based on the acquired setting information, setting regarding image analysis processing to be performed on a captured image obtained by capturing an image of a predetermined monitoring target range.

A high precision optical tag includes gradient features at the corners. The gradient features transition from a darker pattern proximal to the corner of the tag to a lighter pattern distal to the corner. The gradient facilitates rapid and computationally efficient determination of the corners of the optical tag at high resolution, such as to a pixel-level within an image. Once the corners of the optical tag are precisely identified, a boundary of the tag may be determined. In one implementation, with the precise information about the corners and boundary of the optical tag in the image, a pose of the camera relative to the optical tag may be determined.

Provided is an optical code that retains compatibility with existing optical codes and is used for recording information different from the information recorded under prescribed conditions. Also provided are a method and a device for reading the optical code. The optical code includes a plurality of light color modules of a light color and a plurality of dark color modules of a dark color to record first data. At least the light color modules or the dark color modules are made up of a first module and a second module having different reflectance for light of a predetermined wavelength. Second data is recorded in a pattern of the first and second modules.

An indicia reading terminal is disclosed that eliminates unwanted flickering effects in an illuminated screen reading mode, among other advantageous features. The indicia reading terminal, in response to a screen reading signal, is operative to activate a screen reading cycle. In the screen reading cycle, an imaging subsystem is activated at least once at the same time that an illumination subsystem is activated for one of a plurality of active illumination periods, for a first illuminated exposure period. The imaging subsystem is activated at least once while the illumination subsystem is not activated, for a first unilluminated exposure period, which is longer than the first illuminated exposure period. An aimer subsystem is activated for a plurality of active aimer periods when neither the imaging subsystem nor the illumination subsystem is activated, wherein intervals of time between the active aimer periods are equal, within nominal tolerances.