CN106504406A - A kind of method and device of identification bank note - Google Patents
A kind of method and device of identification bank note Download PDFInfo
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- CN106504406A CN106504406A CN201610940109.2A CN201610940109A CN106504406A CN 106504406 A CN106504406 A CN 106504406A CN 201610940109 A CN201610940109 A CN 201610940109A CN 106504406 A CN106504406 A CN 106504406A
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- 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
- G07D7/20—Testing patterns thereon
- G07D7/2016—Testing patterns thereon using feature extraction, e.g. segmentation, edge detection or Hough-transformation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
- G06V10/267—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion by performing operations on regions, e.g. growing, shrinking or watersheds
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
-
- 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
- G07D7/20—Testing patterns thereon
-
- 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
- G07D7/20—Testing patterns thereon
- G07D7/2075—Setting acceptance levels or parameters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10064—Fluorescence image
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Image Analysis (AREA)
Abstract
The embodiment of the invention discloses a kind of method and device of identification bank note.The method includes:Judge whether the rectangle fluorescence area size meets default size threshold value;Binary conversion treatment is carried out to the rectangle fluorescence area, splits each rectangle fluorescence area according to row projection properties;Detect whether each rectangle fluorescence area is rectangular area;The row projection in the rectangle fluorescence area is calculated on binary image, judges whether there is fracture inside the rectangle fluorescence area;If having fracture inside the rectangle fluorescence area, determine that the bank note to be identified is counterfeit money.So as to adopt line detection method to judge rectangle fluorescence shape facility;Using improved Hough transform line detection method, Time & Space Complexity is reduced, can preferably using real-time currency detecting system;Judge whether rectangle fluorescent characteristicss have fracture using row projecting method;Judge whether to meet fluorescent characteristicss size and gap size feature according to distance feature.
Description
Technical field
A kind of the present embodiments relate to technical field of bill handling, more particularly to method and device of identification bank note.
Background technology
As economic develops rapidly, the circulation of currency is increasing, and paper money counter also becomes now indispensable one
Individual instrument.Currency counting and detecting machine is mainly a kind of instrument that bank note can be checked and be checked forge or true or paper money, is commonly used for silver
Row sales counter.By being detected to the true and false of bank note using its internal image recognition technology, counterfeit money identification technology.But nowadays
The manufacturing technology more and more higher of counterfeit money, the true and false that bank note cannot be detected by conventional technology of identification.
Content of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device of identification bank note, it is intended to solve how to improve vacation
The problem of the accuracy of coin identification.
It is that the embodiment of the present invention is employed the following technical solutions up to this purpose:
In a first aspect, a kind of method of identification bank note, methods described includes:
The rectangle fluorescence area image of bank note to be identified is obtained, judges whether the rectangle fluorescence area size meets default
Size threshold value;
If the rectangle fluorescence area size meets the default size threshold value, two are carried out to the rectangle fluorescence area
Value is processed, and splits each rectangle fluorescence area according to row projection properties;
Detect whether each rectangle fluorescence area is rectangular area;
If each rectangle fluorescence area is the rectangular area, the rectangle fluorescence area is calculated on binary image
Interior row projection, judges whether there is fracture inside the rectangle fluorescence area;
If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
Preferably, described judge whether the rectangle fluorescence area size meets default size threshold value before, also include:
The rectangle fluorescence area position is determined using ranks projection.
Preferably, methods described also includes:
If not rupturing inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
Preferably, whether described each fluorescence area of detection is rectangular area, including:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold with the interval for judging the rectangle fluorescence area is
No meet predetermined interval threshold value.
Preferably, whether described each fluorescence area of detection is rectangular area, including:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and with the interval for judging the rectangle fluorescence area be
No meet predetermined interval threshold value;
If the length of each edge circle meet the interval of the pre-set length threshold and the rectangle fluorescence area meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is rectangular area;
If the length violation of each edge circle closes the pre-set length threshold and the interval of the rectangle fluorescence area does not meet
The predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
Second aspect, a kind of device of identification bank note, described device include:
First judge module, for obtaining the rectangle fluorescence area image of bank note to be identified, judges the rectangle phosphor region
Whether domain size meets default size threshold value;
Segmentation module, if meeting the default size threshold value for the rectangle fluorescence area size, to the rectangle
Fluorescence area carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Detection module, for detecting whether each rectangle fluorescence area is rectangular area;
Second judge module, if being the rectangular area for each rectangle fluorescence area, counts on binary image
The row projection in the rectangle fluorescence area is calculated, judges whether there is fracture inside the rectangle fluorescence area;
First determining module, if for having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is
Counterfeit money.
Preferably, described device also includes:
Second determining module, for before judging whether the rectangle fluorescence area size meets default size threshold value,
The rectangle fluorescence area position is determined using ranks projection.
Preferably, described device also includes:
3rd determining module, if for not fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified
For genuine notes.
Preferably, the detection module, specifically for:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold with the interval for judging the rectangle fluorescence area is
No meet predetermined interval threshold value.
Preferably, the detection module, also particularly useful for:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and with the interval for judging the rectangle fluorescence area be
No meet predetermined interval threshold value;
If the length of each edge circle meet the interval of the pre-set length threshold and the rectangle fluorescence area meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is rectangular area;
If the length violation of each edge circle closes the pre-set length threshold and the interval of the rectangle fluorescence area does not meet
The predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
A kind of method and device of identification bank note provided in an embodiment of the present invention, obtains the rectangle phosphor region of bank note to be identified
Area image, judges whether the rectangle fluorescence area size meets default size threshold value;If the rectangle fluorescence area size symbol
The default size threshold value is closed, then binary conversion treatment is carried out to the rectangle fluorescence area, is split each according to row projection properties
Rectangle fluorescence area;Detect whether each rectangle fluorescence area is rectangular area;If each rectangle fluorescence area is the rectangle
Region, then calculate the row projection in the rectangle fluorescence area on binary image, judge inside the rectangle fluorescence area
Whether fracture is had;If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.Straight so as to adopt
Line detecting method judges rectangle fluorescence shape facility;Using improved Hough transform line detection method, time and sky is reduced
Between complexity, can preferably using real-time currency detecting system;Judge whether rectangle fluorescent characteristicss have fracture using row projecting method;Root
Judge whether to meet fluorescent characteristicss size and gap size feature according to distance feature.
Description of the drawings
Fig. 1 is a kind of schematic flow sheet of the method for identification bank note provided in an embodiment of the present invention;
Fig. 2 is a kind of fluorescence area schematic diagram of bank note provided in an embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the method for another kind of identification bank note provided in an embodiment of the present invention;
Fig. 4 is the schematic flow sheet of the method for another kind of identification bank note provided in an embodiment of the present invention;
Fig. 5 is a kind of high-level schematic functional block diagram of the device of identification bank note provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the embodiment of the present invention is described in further detail.It is understood that this
The described specific embodiment in place is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of description, illustrate only the part related to the embodiment of the present invention rather than entire infrastructure in accompanying drawing.
With reference to Fig. 1, Fig. 1 is a kind of schematic flow sheet of the method for identification bank note provided in an embodiment of the present invention.
As shown in figure 1, the method for the identification bank note includes:
Step 101, obtains the rectangle fluorescence area image of bank note to be identified, whether judges the rectangle fluorescence area size
Meet default size threshold value;
Specifically, as shown in Fig. 2 Hongkong dollar is glimmering positioned at the rectangle of the useful colorless fluorescent ink printing in front central authorities position to the left
Light area, size are 26mm × 20mm, from left to right have 5 fluorescent belts, and by narrow, narrow/wide, narrow, narrow order arrangement, belt length is equal
For 20mm, bandwidth respectively 2mm, 2mm, 4mm, 2mm and 2mm, midfeather are respectively 2mm, 8mm, 2mm and 2mm.In ultraviolet
Irradiation under send yellow fluorescence.Silver-colored version in 2003 100 yuan of versions, different editions, the different banks of issue, different denominations rectangle are glimmering
Light region fluorescence tape number is different, and arrangement mode is different, and bandwidth and midfeather are variant;Value of money, version according to banknote, send out
Row bank information locating rectangle phosphor region figure.
Step 102, if the rectangle fluorescence area size meets the default size threshold value, to the rectangle phosphor region
Domain carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Wherein, row are projected as a square-wave waveform feature, can be according to wave character segmentation figure picture.Implementation can be with
For:One threshold value is set, is classified as target column more than threshold value, be background row less than threshold value, continuously this section then thought for background
For background, continuously then think that this section is target (i.e. fluorescence area) for target.
Step 103, detects whether each rectangle fluorescence area is rectangular area;
Preferably, whether described each fluorescence area of detection is rectangular area, including:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold with the interval for judging the rectangle fluorescence area is
No meet predetermined interval threshold value.
Preferably, whether described each fluorescence area of detection is rectangular area, including:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and with the interval for judging the rectangle fluorescence area be
No meet predetermined interval threshold value;
If the length of each edge circle meet the interval of the pre-set length threshold and the rectangle fluorescence area meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is rectangular area;
If the length violation of each edge circle closes the pre-set length threshold and the interval of the rectangle fluorescence area does not meet
The predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
Step 104, if each rectangle fluorescence area is the rectangular area, calculates the rectangle on binary image
Row projection in fluorescence area, judges whether there is fracture inside the rectangle fluorescence area;
Specifically, row projection is more than threshold value, and then thinks the row without fracture without the point continuously for background, if the row of fracture
More than threshold value, number then thinks that fluorescence area content ruptures.
Step 105, if having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
A kind of method of identification bank note provided in an embodiment of the present invention, obtains the rectangle fluorescence area figure of bank note to be identified
Picture, judges whether the rectangle fluorescence area size meets default size threshold value;If the rectangle fluorescence area size meets institute
Default size threshold value is stated, then binary conversion treatment is carried out to the rectangle fluorescence area, is split each rectangle according to row projection properties
Fluorescence area;Detect whether each rectangle fluorescence area is rectangular area;If each rectangle fluorescence area is the rectangular area,
On binary image, the row projection in the rectangle fluorescence area is then calculated, judge whether have inside the rectangle fluorescence area
Fracture;If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.So as to adopt straight-line detection
Method judges rectangle fluorescence shape facility;Using improved Hough transform line detection method, time and spatial complex is reduced
Degree, can preferably using real-time currency detecting system;Judge whether rectangle fluorescent characteristicss have fracture using row projecting method;According to distance
Feature judges whether to meet fluorescent characteristicss size and gap size feature.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of the method for another kind of identification bank note provided in an embodiment of the present invention.
As shown in figure 3, the method for the identification bank note includes:
Step 301, obtains the rectangle fluorescence area image of bank note to be identified;
Step 302, determines the rectangle fluorescence area position using ranks projection;
Step 303, judges whether the rectangle fluorescence area size meets default size threshold value;
Step 304, if the rectangle fluorescence area size meets the default size threshold value, to the rectangle phosphor region
Domain carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Step 305, detects whether each rectangle fluorescence area is rectangular area;
Step 306, if each rectangle fluorescence area is the rectangular area, calculates the rectangle on binary image
Row projection in fluorescence area, judges whether there is fracture inside the rectangle fluorescence area;
Step 307, if having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of the method for another kind of identification bank note provided in an embodiment of the present invention.
As shown in figure 4, the method for the identification bank note includes:
Step 401, obtains the rectangle fluorescence area image of bank note to be identified, whether judges the rectangle fluorescence area size
Meet default size threshold value;
Step 402, if the rectangle fluorescence area size meets the default size threshold value, to the rectangle phosphor region
Domain carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Step 403, detects whether each rectangle fluorescence area is rectangular area;
Step 404, if each rectangle fluorescence area is the rectangular area, calculates the rectangle on binary image
Row projection in fluorescence area, judges whether there is fracture inside the rectangle fluorescence area;
Step 405, if having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money;
Step 406, if do not rupture inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
With reference to Fig. 5, Fig. 5 is a kind of high-level schematic functional block diagram of the device of identification bank note provided in an embodiment of the present invention.
Such as Fig. 5, described device include:
First judge module 501, for obtaining the rectangle fluorescence area image of bank note to be identified, judges the rectangle fluorescence
Whether area size meets default size threshold value;
Segmentation module 502, if meeting the default size threshold value for the rectangle fluorescence area size, to the square
Shape fluorescence area carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Detection module 503, for detecting whether each rectangle fluorescence area is rectangular area;
Preferably, the detection module 503, specifically for:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold with the interval for judging the rectangle fluorescence area is
No meet predetermined interval threshold value.
Preferably, the detection module 503, also particularly useful for:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and with the interval for judging the rectangle fluorescence area be
No meet predetermined interval threshold value;
If the length of each edge circle meet the interval of the pre-set length threshold and the rectangle fluorescence area meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is rectangular area;
If the length violation of each edge circle closes the pre-set length threshold and the interval of the rectangle fluorescence area does not meet
The predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
Second judge module 504, if being the rectangular area for each rectangle fluorescence area, on binary image
The row projection in the rectangle fluorescence area is calculated, judges whether there is fracture inside the rectangle fluorescence area;
First determining module 505, if for having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified
For counterfeit money.
Preferably, described device also includes:
Second determining module, for before judging whether the rectangle fluorescence area size meets default size threshold value,
The rectangle fluorescence area position is determined using ranks projection.
Preferably, described device also includes:
3rd determining module, if for not fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified
For genuine notes.
A kind of device of identification bank note provided in an embodiment of the present invention, obtains the rectangle fluorescence area figure of bank note to be identified
Picture, judges whether the rectangle fluorescence area size meets default size threshold value;If the rectangle fluorescence area size meets institute
Default size threshold value is stated, then binary conversion treatment is carried out to the rectangle fluorescence area, is split each rectangle according to row projection properties
Fluorescence area;Detect whether each rectangle fluorescence area is rectangular area;If each rectangle fluorescence area is the rectangular area,
On binary image, the row projection in the rectangle fluorescence area is then calculated, judge whether have inside the rectangle fluorescence area
Fracture;If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.So as to adopt straight-line detection
Method judges rectangle fluorescence shape facility;Using improved Hough transform line detection method, time and spatial complex is reduced
Degree, can preferably using real-time currency detecting system;Judge whether rectangle fluorescent characteristicss have fracture using row projecting method;According to distance
Feature judges whether to meet fluorescent characteristicss size and gap size feature.
Above in association with the know-why that specific embodiment describes the embodiment of the present invention.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the restriction to embodiment of the present invention protection domain can not be construed to by any way.Based on herein
Explanation, those skilled in the art associate by need not paying performing creative labour the embodiment of the present invention other are concrete
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (10)
1. a kind of identification bank note method, it is characterised in that methods described includes:
The rectangle fluorescence area image of bank note to be identified is obtained, judges whether the rectangle fluorescence area size meets default size
Threshold value;
If the rectangle fluorescence area size meets the default size threshold value, binaryzation is carried out to the rectangle fluorescence area
Process, split each rectangle fluorescence area according to row projection properties;
Detect whether each rectangle fluorescence area is rectangular area;
If each rectangle fluorescence area is the rectangular area, calculate on binary image in the rectangle fluorescence area
Row projection, judges whether there is fracture inside the rectangle fluorescence area;
If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
2. method according to claim 1, it is characterised in that described judge whether the rectangle fluorescence area size meets
Before default size threshold value, also include:
The rectangle fluorescence area position is determined using ranks projection.
3. method according to claim 1, it is characterised in that methods described also includes:
If not rupturing inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
4. the method according to claims 1 to 3 any one, it is characterised in that whether the detection each fluorescence area
For rectangular area, including:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold and judges whether the interval of the rectangle fluorescence area accords with
Close predetermined interval threshold value.
5. the method according to claims 1 to 3 any one, it is characterised in that whether the detection each fluorescence area
For rectangular area, including:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and judge whether the interval of the rectangle fluorescence area accords with
Close predetermined interval threshold value;
If the length of each edge circle meets the pre-set length threshold and the interval of the rectangle fluorescence area meets described presetting
Interval threshold, it is determined that each fluorescence area described is rectangular area;
If the interval of the length violation conjunction pre-set length threshold of each edge circle and the rectangle fluorescence area does not meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
6. a kind of identification bank note device, it is characterised in that described device includes:
First judge module, for obtaining the rectangle fluorescence area image of bank note to be identified, judges that the rectangle fluorescence area is big
Little whether meet default size threshold value;
Segmentation module, if meeting the default size threshold value for the rectangle fluorescence area size, to the rectangle fluorescence
Region carries out binary conversion treatment, splits each rectangle fluorescence area according to row projection properties;
Detection module, for detecting whether each rectangle fluorescence area is rectangular area;
Second judge module, if being the rectangular area for each rectangle fluorescence area, calculates institute on binary image
The row projection in rectangle fluorescence area is stated, judges whether there is fracture inside the rectangle fluorescence area;
First determining module, if for having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
7. device according to claim 6, it is characterised in that described device also includes:
Second determining module, for, before judging whether the rectangle fluorescence area size meets default size threshold value, adopting
Ranks projection determines the rectangle fluorescence area position.
8. device according to claim 6, it is characterised in that described device also includes:
3rd determining module, if for not fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is true
Paper money.
9. the device according to claim 6 to 8 any one, it is characterised in that the detection module, specifically for:
Described in detection, whether four edges circle of each fluorescence area are straight line;And/or,
Whether the length of detection each edge circle meets pre-set length threshold and judges whether the interval of the rectangle fluorescence area accords with
Close predetermined interval threshold value.
10. the device according to claim 6 to 8 any one, it is characterised in that the detection module, also particularly useful for:
The method of straight-line detection is adopted to detect four edges circle of the rectangle fluorescence area whether for straight line;
If four edges circle are straight line, length and the position coordinateses of each edge circle are calculated;
Judge whether the length of each edge circle meets pre-set length threshold and judge whether the interval of the rectangle fluorescence area accords with
Close predetermined interval threshold value;
If the length of each edge circle meets the pre-set length threshold and the interval of the rectangle fluorescence area meets described presetting
Interval threshold, it is determined that each fluorescence area described is rectangular area;
If the interval of the length violation conjunction pre-set length threshold of each edge circle and the rectangle fluorescence area does not meet described
Predetermined interval threshold value, it is determined that each fluorescence area described is not rectangular area.
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CN106504406B (en) | 2019-11-15 |
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