Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
  • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
  • G07D7/005—Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
  • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
  • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
  • G07D7/12—Visible light, infrared or ultraviolet radiation

Definitions

• the invention relates to a method for automatically checking the authenticity of labeled with luminescent ink value labels with simultaneous value recognition.
• the invention relates to a method for the automatic authenticity checking and value recognition of luminescent ink marked Postwertish.
• German Offenlegungsschrift discloses DE 196 49 874 A1 a security having, in a certain area, a luminescent background partially covered by a contrasting colorant, such as a non-luminescent ink.
• the shape and arrangement of the cover provide a coding that correlates with data specific to the document.
• the document is illuminated with excitation radiation of the luminescent substance.
• German patent application DE 10 2006 017 764 A1 it is known to arrange at least two different luminescent substances emitting at different emission wavelengths at different locations on the surface of the security and / or security document so as to form a luminescent substance pattern, each emission wavelength being associated with a character and with each location being associated with a character position, whereby a machine-readable first string of characters is formed by selecting the various luminescent substances in conjunction with their location.
• a suitable energy input to excite the luminescence a pattern with different emission wavelengths of different luminescent substances can be detected by machine, which contains coded information that can be compared after decoding with other information of the value document for validation purposes.
• a device that can automatically read contents of value documents, such as checks.
• the data is at least partially printed or written on a luminescent background.
• the device recognizes which text is to be detected on the basis of the position of the luminescence and detects it.
• the document is irradiated with light of a wavelength suitable for exciting the luminescence.
• the characters to be read are applied with a non-luminescent ink and contrast with the luminescent background so that they can be recognized.
• Usual postage stamps have a luminescent mark, which is located in a defined area on the postage stamp. This can be for example is a luminescent ink printed frame, bar, or other pattern, with an indication of value applied outside of this luminescent region. But it is also possible that the postage stamp has a planar luminescent region, to which a value is applied with non-luminescent ink.
• the luminescent property can not be recognized by the human eye under daylight-like illumination. However, an indication of value can always be recognized by the human eye under daylight-like illumination.
• the postage stamps found are canceled by a marking.
• This mark can be printed or stamped on and is visible to the human eye under daylight-like lighting.
• the recognition speed decreases. Therefore, the throughput speed of the shipments through the sorting system must be reduced. To ensure the same overall throughput of a mail distribution center, therefore, more sorting machines must be purchased.
• the object of the invention is to specify a method which increases the speed for the reliable automatic verification of the authenticity of a luminescent region having and applied to a mailing surface Postwertsch. It is another object of the invention to provide a device for carrying out the method.
• the mailing surface is first illuminated with light containing wavelengths from a first, spectral range. This may be, for example, daylight-like lighting. Under this illumination, a first image of the mailing surface is taken with a camera system which is evaluated with regard to the location of postal stamps applied to the mailing surface. Subsequently, the postal value mark is irradiated with light containing wavelengths from a second spectral range, this light being suitable for exciting the luminescence of the luminescent printing ink and a second image of the postage value being recorded with a camera system under this illumination.
• a first, spectral range This may be, for example, daylight-like lighting.
• a first image of the mailing surface is taken with a camera system which is evaluated with regard to the location of postal stamps applied to the mailing surface.
• the postal value mark is irradiated with light containing wavelengths from a second spectral range, this light being suitable for exciting the luminescence of the luminescent printing ink and a second image of the postage value
• This second image is evaluated for the location of the luminescent region. Subsequently, a comparison of the two evaluations regarding the criterion of the presence of luminescence takes place at the location or locations where postal stamps are applied according to the evaluation of the first image, whereby only such postage stamps are further investigated in the following steps, where the presence of luminescence has been detected. Subsequently For example, one or more frames of the second image are defined at the location or locations where the presence of postage indicia has been detected. This image detail or image sections are evaluated with regard to the determination of the location and geometry of the luminescence pattern or the luminescence pattern of each postage indicium recognized on the mailing surface, in which the presence of luminescence was recognized.
• the comparison of the evaluation of the image section or the image sections with stored luminescence patterns leads, in agreement with the decision on the authenticity of each postage due.
• the two-step verification increases the speed of authenticating since the first check for the presence of luminescence at the location (s) of postage stamps is very fast.
• the quality of the verification is increased with the second stage of the verification of the respective luminescence pattern, whereby only those postage indicia are checked in the second stage, in which the presence of luminescence was determined in the first stage.
• the authenticity check of the postage due to the detection of luminescence can occur under such low illumination intensity that the shipment is not damaged.
• the first image of the mailing surface is evaluated with regard to the reading in of the value applied in the value specification of postage stamps recognized as genuine.
• located on the postage stamp information such as the value specified by means of an OCR software can be read into a control means.
• OCR stands for the English word for text recognition, Optical Character Recognition.
• the text recognition is done under illumination with light containing wavelengths from a first spectral range, such as a daylight-like spectral range, in which case the radiation is not sufficient to damage the broadcast, for example, a light radiation with a wavelength spectrum similar to daylight at the same radiation intensity is less energy than one Light radiation with a radiation spectrum that is suitable to excite the luminescence.
• the quality of the review can be further increased by checking the location relationship of the value specification to a luminescent area of the postage stamp.
• These local relationships can be stored in a database system which is located on a separate control means, a control means of the sorting system or a central unit, wherein the sorting system is connected to the central unit.
• both the first and the second image are recorded with the same camera system.
• the intensity of the luminescence is also evaluated during the evaluation of the second image.
• the recorded intensity of the luminescence can be compared with luminescence intensities stored, for example, in a database system, and this comparison can additionally be used to check the authenticity of the postage stamp, which leads to a further increase in the quality of the authenticity check.
• the database system can be located on a separate control means, a control means of the sorting system or a central unit, wherein the sorting system is connected to the central unit.
• the stored luminescence patterns and luminescence intensities and, if appropriate, the local relationships of values for luminescent areas are not input manually, but are determined from the postage stamps present in the mail stream by recorded luminescence pattern and luminescence intensities depending on an adjustable accumulation of occurrence are deposited as a reference pattern.
• the process automatically learns new postage stamps. If certain luminescence patterns and / or intensities occur frequently in the shipment stream, the probability that these are genuine postage stamps speaks for itself. The limits, from which an accumulation is regarded as an indication of the authenticity, are adjustable.
• luminescence patterns and / or intensities that were not yet known but have occurred frequently can be manually confirmed as true.
• the length and width dimensions of the programs are evaluated in the evaluation of the first or second image.
• the thickness of each shipment can be detected. In many cases, this information can already be used to determine a target franking charge. If, in addition, the mass of the consignment is also detected by weighing, for example, the desired franking fee can be determined as a function of the consignment dimensions and the mass and compared with the value of the added values of the postage stamps found on the consignment surface and recognized as genuine. Deliveries recognized as sub-franked can be removed from the process.
• the target franking fees for items of different dimensions and / or mass can be stored in a database.
• a device for carrying out the method has a camera system, via a first illumination device for illuminating broadcasts with light comprising wavelengths from a first spectral range, via a second illumination device for illuminating broadcasts with light, containing wavelengths from a second spectral range, this light is suitable for exciting the luminescence of the luminescent printing ink, and a control means which is suitable for evaluating images recorded with the camera system and recognizing signs by means of OCR software.
• the device can be integrated in a sorting system.
• the control means usually available in the sorting system can be shared for the evaluation of the image information transmitted by the camera system, so that no separate control means is required.
• the realization of a Ausschleusungs Kunststoffung for as franked with counterfeit postal stamps or recognized as a sub-franked broadcasts in this way is easily possible.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Sorting Of Articles (AREA)
• Inspection Of Paper Currency And Valuable Securities (AREA)
• Image Analysis (AREA)

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Citations (9)

Family Cites Families (24)

• 2011
  • 2011-10-04 EP EP11183849.6A patent/EP2579222A1/fr not_active Withdrawn
• 2012
  • 2012-09-27 EP EP12762620.8A patent/EP2764499B1/fr active Active
  • 2012-09-27 WO PCT/EP2012/069068 patent/WO2013050290A1/fr active Application Filing
  • 2012-09-27 CN CN201280047411.5A patent/CN103827930A/zh active Pending
  • 2012-09-27 US US14/349,282 patent/US9224059B2/en not_active Expired - Fee Related

Patent Citations (9)

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