摘要:
Systems and methods for adapting an incremental information object (IIO) to accommodate a change in a workflow are provided. A method includes analyzing an IIO, wherein the IIO comprises a plurality of tiles, and wherein the plurality of tiles comprise a code. The code is confirmed and, if the confirmation is successful, a determination is made as to whether the workflow has changed. If the workflow has changed the IIO is modified to change the information density of the IIO, a new code comprising a bitstream is generated, and the bitstream is overwritten on the plurality of tiles.
摘要:
Methods, and apparatus for performing methods, for classifying an image. Methods include determining a corresponding set of metrics for each region of two or more regions of a pattern of regions of an image, and classifying the image in response to at least the corresponding set of metrics for each of the two or more regions of the pattern of regions.
摘要:
Systems and methods for generating a dual deterrent information object (IIO) are provided. A method includes analyzing a dual deterrent IIO to determine a first code, wherein the dual deterrent IIO comprises an IIO comprising a plurality of tiles and an associated mark, wherein each tile in the plurality of tiles represents a data element encoded by color, intensity, or both, and the associated mark comprises information related to the IIO. The first code is confirmed, and, if the first code passes the confirmation a new code comprising a bitstream is generated. The bitstream is overwritten on the plurality of tiles, wherein the dual deterrent IIO is the same size after writing of the bitstream. A new associated mark related to the dual deterrent IIO is generated and the associated mark is overwritten with the new associated mark.
摘要:
A forensic verification system (700) extracts a print signature via print signature extractor 710 from the boundary of a halftone contained in an image. The system (700) compares the print signature to a reference signature stored in a registry via comparator 720 to determine differences between the print signature and the reference signature. The system 700 performs a forensic-level statistical image analysis via forensic analyzer 730 on the print signature and the reference signature based on the comparison to authenticate the printed media.
摘要:
A method for model-based signature profile extraction includes capturing an image of an authentic glyph. An outline model is fit to the image of the authentic glyph, and an authentic signature profile is extracted based on the outline model. A signature profile extracted from an image of another glyph may be compared to the to the authentic signature profile so as to forensically verify authenticity of the other glyph The system for model-based signature profile extraction includes a controller, a capture unit, an outline unit, a profiling unit, and a forensic verification unit. A computer readable medium containing executable instructions is also described.
摘要:
A system is provided that includes a Radio Frequency Identification (RFID) writer and a target tag within operational range of the RFID writer. The system also includes a processor coupled to the RFID writer and a memory coupled to the processor, wherein the memory stores instructions that, when executed, cause the processor to prepare a target tag value for the target tag. The target tag value comprises a position vector that identifies a positioning of data fields of the target tag value.
摘要:
Systems and methods for generating a dual deterrent information object (IIO) are provided. A method includes analyzing a dual deterrent IIO to determine a first code, wherein the dual deterrent IIO comprises an IIO comprising a plurality of tiles and an associated mark, wherein each tile in the plurality of tiles represents a data element encoded by color, intensity, or both, and the associated mark comprises information related to the IIO. The first code is confirmed, and, if the first code passes the confirmation a new code comprising a bitstream is generated. The bitstream is overwritten on the plurality of tiles, wherein the dual deterrent IIO is the same size after writing of the bitstream. A new associated mark related to the dual deterrent IIO is generated and the associated mark is overwritten with the new associated mark.
摘要:
A method of determining whether a mass serialization engine is cryptographically secure is provided herein. The method includes performing (202) a specified number of mass serializations to generate a corresponding number of mass serialization sets. A size of the mass serialization sets is increased from a first portion size to a second portion size by the mass serialized engine. The method further includes determining (204) a corresponding number of collisions for each of the specified number of mass serializations. Additionally, the method includes comparing (206) the number of collisions to an expected number of collisions. Further, the method includes determining (208) whether the mass serialization engine is cryptographically secure based on the comparison.
摘要:
In a method for managing access to a secure content-part of a PPCD following introduction of the PPCD into a workflow among a plurality of workflow participants, in a secure content manager, from a workflow participant of the plurality of workflow participants, a key-map file for a subsequent workflow participant that is to receive the key-map file is received, wherein the key-map file comprises a set of keys to enable the subsequent workflow participant to access the content-part in the PPCD. In addition, authenticity of the received key-map file is verified, the subsequent workflow participant to receive the PPCD is identified and authenticated, a public key of the subsequent workflow participant is accessed, the key map file or a symmetric key used to encrypt the key-map file prior to receipt of the key-map file by the secure content manager is encrypted using the public key of the subsequent workflow participant, and the encrypted key-map file is sent to the subsequent workflow participant.
摘要:
A void pantograph and a method for generating the same are disclosed herein. The void pantograph includes a foreground portion based on a region of an image that is defined using a predetermined filter, and a background portion based on another region of the image that is defined using the predetermined filter.