EP0799460A1 - Process for detecting and checking the genuineness of bank notes and device for implementing it - Google Patents
Process for detecting and checking the genuineness of bank notes and device for implementing itInfo
- Publication number
- EP0799460A1 EP0799460A1 EP96934173A EP96934173A EP0799460A1 EP 0799460 A1 EP0799460 A1 EP 0799460A1 EP 96934173 A EP96934173 A EP 96934173A EP 96934173 A EP96934173 A EP 96934173A EP 0799460 A1 EP0799460 A1 EP 0799460A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaluation
- banknote
- image
- signal
- authenticity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000011156 evaluation Methods 0.000 claims abstract description 33
- 230000005855 radiation Effects 0.000 claims abstract description 3
- 230000005670 electromagnetic radiation Effects 0.000 claims description 7
- 238000013144 data compression Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000003909 pattern recognition Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G07D7/06—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 detecting and checking the authenticity of banknotes with an electromagnetic radiation source, and a device for detecting and checking the authenticity of banknotes, in which the banknote is emitted into an electromagnetic radiation source, e.g. Light source is inserted.
- an electromagnetic radiation source e.g. Light source
- banknotes are illuminated in incident light, for example with an ultraviolet light source, in order to enable visual control in this way are known.
- the evaluation is based on the experience of the viewer, depending on the banknote, the focus being on specific, characteristic positions of the banknote suitable for the evaluation.
- a number of devices are known for the automatic evaluation of banknotes, in which the banknotes are passed under a scanner.
- the special evaluation detects a number of criteria oriented towards a specific bank note and is carried out according to a predetermined scheme, so that a separate presetting is required for each bank note.
- Such devices can generally only be used for a small number of different banknotes if the effort for the evaluation should not be too high.
- the invention now aims to provide a method and a device of the type mentioned at the beginning with which a simple adaptation of the recognition to different banknotes is facilitated.
- the invention aims to minimize the detection effort via simple procedures that can be carried out without complex computers so that a rapid and reliable evaluation of a large number of each other is possible different banknotes is possible.
- the method according to the invention is used to achieve this object. Ren for recognizing and checking the authenticity of banknotes essentially characterized in that a black and white image of the irradiated banknote is recorded and that the image is an evaluation of the number, frequency and / or area distribution of at least 32 detected gray levels will throw.
- the device according to the invention for recognizing and checking the authenticity of banknotes in which the banknote is inserted into an electromagnetic radiation source such as a light source, is essentially characterized in that the banknote is guided between a digital camera and a light source and it is detected that the video signal of the image camera is fed to a computer, that at least 32 gray levels in their relative arrangement, frequency and / or area share in the image are subjected to an evaluation and that an evaluation signal for the authenticity of a display and / or Control for the forwarding of the banknote is fed.
- a still image By capturing a banknote carried between a digital camera and a light source, a still image can be are taken, the video signal of the image camera possibly being subjected to a conventional data compression, in particular an image data compression, before further processing.
- the signals to be evaluated in the sequence should contain at least 32 gray levels on the recording side, the video signal being able to be subjected to a corresponding computing operation which can increase the significance of the subsequent evaluation with a correspondingly reduced computing effort.
- the evaluation of the number of gray levels can also take place on the basis of compressed signals, it also being possible to subsequently further evaluate correspondingly coded signals, such as sum signals of the individual pixel information.
- an evaluation signal for the authenticity of a display can be obtained in a very short time and / or a controller for forwarding the banknote.
- the design is advantageously made such that the banknote is kept at a standstill on an illuminated plate during the recording.
- Such a still picture allows any compression and coding before further processing, the reproducibility being independent of the transport speed of the feed or other mechanical parameters in any case.
- the evaluation comprising at least 64, preferably 128 gray levels, the gray level signal advantageously being compared with reference signals in order to quickly follow appropriate results.
- the reference signals can either be supplied externally to the respective computer in the form of data.
- the design can advantageously be made such that the computer has an adaptive learning circuit, in particular an iteration circuit for calibration to a specific bank note, which enables reference signals to be formed by iteration.
- the design can advantageously be such that a difference signal between the image signal and the reference signal is fed to the evaluation circuit.
- the design is such that the electromagnetic steel source is designed as a steel source with short-wave light, UV or X-ray source, which ensures that even with relatively densely printed banknotes there is a maximum of evaluable signals.
- the design preferably being such that the black and white image of the banknote is used for a picture element evaluation e.g. is subject to a "pattern recognition".
- image evaluation programs are used, for example, in connection with the evaluation of satellite images, in which case a high degree of error tolerance is also achieved, since incorrectly read data or disturbances in the image can possibly be compensated for.
- a banknote 1 can be seen on a transparent support 2, the banknote being held at a standstill by a digital camera 3 during the photographic recording.
- the banknote 1 is emitted via a radiation source 4 designed as a light source shines through.
- the signal from the digital camera passes via data lines 5 and a data compressor or data concentrator 6 to a computer 7, in which the corresponding evaluation takes place.
- the digital camera 3 is to record at least 32 gray levels, and when the evaluation confirms the authenticity, a corresponding signal 8 can be actuated to display the authenticity.
- a corresponding lock or a further transport mechanism can also be actuated in order to enable the banknote recognized as genuine to be stored in a corresponding slot for receiving this banknote.
- the light source can be adapted to the particular type of bank notes 1 to be examined. In principle, high-energy, electromagnetic radiation sources are particularly advantageous for densely printed banknotes.
- the digital camera 3 is intended to enable at least 5 band images per second with the desired resolution for rapid and reliable detection.
- the transparent plate 2 can also be replaced by a perforated plate, and can in particular ensure the secure standstill position for fixing the banknotes during the recording by sucking in air through corresponding holes in the plate.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT58095U | 1995-10-24 | ||
AT0058095U AT1348U1 (en) | 1995-10-24 | 1995-10-24 | METHOD FOR DETECTING AND CHECKING THE REALITY OF BANKNOTES AND DEVICE FOR IMPLEMENTING THIS METHOD |
AT580/95U | 1995-10-24 | ||
PCT/AT1996/000205 WO1997015904A1 (en) | 1995-10-24 | 1996-10-23 | Process for detecting and checking the genuineness of bank notes and device for implementing it |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0799460A1 true EP0799460A1 (en) | 1997-10-08 |
EP0799460B1 EP0799460B1 (en) | 2001-10-04 |
Family
ID=3494349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96934173A Revoked EP0799460B1 (en) | 1995-10-24 | 1996-10-23 | Process for detecting and checking the genuineness of bank notes and device for implementing it |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0799460B1 (en) |
AT (2) | AT1348U1 (en) |
AU (1) | AU709677B2 (en) |
CA (1) | CA2207924A1 (en) |
CZ (1) | CZ290214B6 (en) |
DE (1) | DE59607830D1 (en) |
DK (1) | DK0799460T3 (en) |
ES (1) | ES2162100T3 (en) |
PT (1) | PT799460E (en) |
WO (1) | WO1997015904A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000222615A (en) * | 1998-11-27 | 2000-08-11 | Nittetsu Mining Co Ltd | Authenticity discriminating method, object of authenticity discrimination and autheticity discrimination device |
SE520847C2 (en) | 1999-02-10 | 2003-09-02 | Scan Coin Ind Ab | Coin-separating device, coin-handling apparatus including such device and a method for separating coins |
WO2003081542A1 (en) * | 2002-03-25 | 2003-10-02 | Dongshan Bao | A multiple testing apparatus for bank notes having high-technology |
CN113379961B (en) * | 2021-06-10 | 2022-04-05 | 广州市银科电子有限公司 | Method, device, equipment and storage medium for assisting identification of bank notes and tickets |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4208652A (en) * | 1978-09-14 | 1980-06-17 | A. C. Nielsen Company | Method and apparatus for identifying images |
DE3273665D1 (en) * | 1981-07-30 | 1986-11-13 | Gao Ges Automation Org | Method for rastering half-tone images |
SE458316B (en) * | 1988-02-17 | 1989-03-13 | Inter Innovation Ab | DEVICE FOR CONTROL OF DOCUMENTS |
JPH0514683A (en) * | 1991-07-01 | 1993-01-22 | Canon Inc | Picture processing unit |
JPH05166029A (en) * | 1991-12-18 | 1993-07-02 | Koufu Nippon Denki Kk | Paper money discriminating unit |
-
1995
- 1995-10-24 AT AT0058095U patent/AT1348U1/en not_active IP Right Cessation
-
1996
- 1996-10-23 AU AU72651/96A patent/AU709677B2/en not_active Ceased
- 1996-10-23 WO PCT/AT1996/000205 patent/WO1997015904A1/en not_active Application Discontinuation
- 1996-10-23 CA CA002207924A patent/CA2207924A1/en not_active Abandoned
- 1996-10-23 PT PT96934173T patent/PT799460E/en unknown
- 1996-10-23 EP EP96934173A patent/EP0799460B1/en not_active Revoked
- 1996-10-23 DK DK96934173T patent/DK0799460T3/en active
- 1996-10-23 CZ CZ19971916A patent/CZ290214B6/en not_active IP Right Cessation
- 1996-10-23 AT AT96934173T patent/ATE206545T1/en not_active IP Right Cessation
- 1996-10-23 ES ES96934173T patent/ES2162100T3/en not_active Expired - Lifetime
- 1996-10-23 DE DE59607830T patent/DE59607830D1/en not_active Revoked
Non-Patent Citations (1)
Title |
---|
See references of WO9715904A1 * |
Also Published As
Publication number | Publication date |
---|---|
CZ290214B6 (en) | 2002-06-12 |
AU7265196A (en) | 1997-05-15 |
AT1348U1 (en) | 1997-03-25 |
PT799460E (en) | 2002-01-30 |
DK0799460T3 (en) | 2001-12-31 |
EP0799460B1 (en) | 2001-10-04 |
AU709677B2 (en) | 1999-09-02 |
ATE206545T1 (en) | 2001-10-15 |
DE59607830D1 (en) | 2001-11-08 |
ES2162100T3 (en) | 2001-12-16 |
CZ191697A3 (en) | 1997-10-15 |
MX9704692A (en) | 1997-10-31 |
CA2207924A1 (en) | 1997-05-01 |
WO1997015904A1 (en) | 1997-05-01 |
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