CN106504406B - A kind of method and device identifying bank note - Google Patents
A kind of method and device identifying bank note Download PDFInfo
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- CN106504406B CN106504406B CN201610940109.2A CN201610940109A CN106504406B CN 106504406 B CN106504406 B CN 106504406B CN 201610940109 A CN201610940109 A CN 201610940109A CN 106504406 B CN106504406 B CN 106504406B
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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
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- 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)
- Image Analysis (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Abstract
The embodiment of the invention discloses a kind of method and devices for identifying bank note.This method comprises: judging whether the rectangle fluorescence area size meets default size threshold value；Binary conversion treatment is carried out to the rectangle fluorescence area, divides each rectangle fluorescence area according to column projection properties；Detect whether each rectangle fluorescence area is rectangular area；The column 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.To judge rectangle fluorescence shape feature using line detection method；Using improved Hough transform line detection method, Time & Space Complexity is reduced, can preferably use real-time currency detecting system；Judge whether rectangle fluorescent characteristics has fracture using column projecting method；Judged whether to meet fluorescent characteristics size and gap size feature according to distance feature.
Description
Technical field
The present embodiments relate to the technical field of bill handling more particularly to a kind of method and devices for identifying bank note.
Background technique
With economic rapid development, the circulation of currency is increasing, and paper money counter also becomes now indispensable one
A tool.Currency counting and detecting machine is mainly the tool that one kind could be checked bank note and be examined forge or true or paper money, is commonly used for silver
Row sales counter.The true and false of bank note is detected by using its internal image recognition technology, counterfeit money identification technology.But nowadays
The manufacturing technology of counterfeit money is higher and higher, and the true and false of bank note can not be detected by conventional identification technology.
Summary of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device for identifying bank note, it is intended to solve how to improve vacation
The problem of accuracy of coin identification.
For this purpose, the embodiment of the present invention uses following technical scheme:
In a first aspect, a kind of method for identifying bank note, which comprises
It is default to judge whether the rectangle fluorescence area size meets for the rectangle fluorescence area image for obtaining bank note to be identified
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 processing divides each rectangle fluorescence area according to column 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 column 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, it is described judge whether the rectangle fluorescence area size meets default size threshold value before, further includes:
It is projected using ranks and determines rectangle fluorescence area position.
Preferably, the method also includes:
If not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
Preferably, whether each fluorescence area of detection is rectangular area, comprising:
Whether four edges circle for detecting each fluorescence area are straight line；And/or
Whether the length of detection each edge circle meets pre-set length threshold and judges that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value.
Preferably, whether each fluorescence area of detection is rectangular area, comprising:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates of each edge circle are calculated；
Judge whether the length of each edge circle meets pre-set length threshold and judge that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value；
If the interval that the length of each edge circle meets the pre-set length threshold and the rectangle fluorescence area meets described
Preset interval threshold value, it is determined that each fluorescence area 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 is not met
The preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
Second aspect, a kind of device identifying bank note, described device include:
First judgment module judges the rectangle phosphor region for obtaining the rectangle fluorescence area image of bank note to be identified
Whether domain size meets default size threshold value；
Divide module, if meeting the default size threshold value for the rectangle fluorescence area size, to the rectangle
Fluorescence area carries out binary conversion treatment, divides each rectangle fluorescence area according to column projection properties；
Detection module, for detecting whether each rectangle fluorescence area is rectangular area；
Second judgment module is counted on binary image if being the rectangular area for each rectangle fluorescence area
The column 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 further include:
Second determining module, for before judging whether the rectangle fluorescence area size meets default size threshold value,
It is projected using ranks and determines rectangle fluorescence area position.
Preferably, described device further include:
Third determining module, if for not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified
For genuine notes.
Preferably, the detection module, is specifically used for:
Whether four edges circle for detecting each fluorescence area are straight line；And/or
Whether the length of detection each edge circle meets pre-set length threshold and judges that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value.
Preferably, the detection module, also particularly useful for:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates of each edge circle are calculated；
Judge whether the length of each edge circle meets pre-set length threshold and judge that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value；
If the interval that the length of each edge circle meets the pre-set length threshold and the rectangle fluorescence area meets described
Preset interval threshold value, it is determined that each fluorescence area 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 is not met
The preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
A kind of method and device identifying 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 divided according to column projection properties each
Rectangle fluorescence area；Detect whether each rectangle fluorescence area is rectangular area；If each rectangle fluorescence area is the rectangle
Region then calculates the column projection in the rectangle fluorescence area on binary image, judges 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.To using straight
Line detecting method judges rectangle fluorescence shape feature；Using improved Hough transform line detection method, time and sky are reduced
Between complexity, can preferably use real-time currency detecting system；Judge whether rectangle fluorescent characteristics has fracture using column projecting method；Root
Judge whether to meet fluorescent characteristics size and gap size feature according to distance feature.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of method for identifying 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 flow diagram of the method for another identification bank note provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of the method for another identification bank note provided in an embodiment of the present invention；
Fig. 5 is a kind of the functional block diagram of device for identifying bank note provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
Locate described specific embodiment and 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 only parts related to embodiments of the present invention are shown rather than entire infrastructure for ease of description, in attached drawing.
It is a kind of flow diagram of method for identifying bank note provided in an embodiment of the present invention with reference to Fig. 1, Fig. 1.
As shown in Figure 1, the method for the identification bank note includes:
Step 101, whether the rectangle fluorescence area image for obtaining bank note to be identified 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 center position to the left
Light area, size are 26mm × 20mm, from left to right share 5 fluorescent belts, are arranged by narrow, narrow/wide, narrow, narrow sequence, belt length is equal
For 20mm, bandwidth is respectively 2mm, 2mm, 4mm, 2mm and 2mm, and midfeather is respectively 2mm, 8mm, 2mm and 2mm.In ultraviolet light
Irradiation under issue 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；According to the value of money of banknote, version, hair
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, divides each rectangle fluorescence area according to column projection properties；
Wherein, column are projected as a square-wave waveform feature, can be according to wave character segmented image.Implementation can be with
Are as follows: one threshold value of setting is classified as target column greater than threshold value, is background column less than threshold value, continuously then thinks this section for background
It is continuously that target then thinks that this section is target (i.e. fluorescence area) for background.
Step 103, detect whether each rectangle fluorescence area is rectangular area；
Preferably, whether each fluorescence area of detection is rectangular area, comprising:
Whether four edges circle for detecting each fluorescence area are straight line；And/or
Whether the length of detection each edge circle meets pre-set length threshold and judges that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value.
Preferably, whether each fluorescence area of detection is rectangular area, comprising:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates of each edge circle are calculated；
Judge whether the length of each edge circle meets pre-set length threshold and judge that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value；
If the interval that the length of each edge circle meets the pre-set length threshold and the rectangle fluorescence area meets described
Preset interval threshold value, it is determined that each fluorescence area 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 is not met
The preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
Step 104, if each rectangle fluorescence area is the rectangular area, the rectangle is calculated on binary image
Column projection in fluorescence area, judges whether there is fracture inside the rectangle fluorescence area；
Specifically, column projection is greater than threshold value, and the column are then thought without fracture, if the column of fracture without the continuous point for background
Number is more than that threshold value then thinks that fluorescence area content is broken.
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 identifying 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, divides each rectangle according to column projection properties
Fluorescence area；Detect whether each rectangle fluorescence area is rectangular area；If each rectangle fluorescence area is the rectangular area,
The column projection in the rectangle fluorescence area is then calculated on binary image, judges 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.To use straight-line detection
Method judges rectangle fluorescence shape feature；Using improved Hough transform line detection method, time and spatial complex are reduced
Degree, can preferably use real-time currency detecting system；Judge whether rectangle fluorescent characteristics has fracture using column projecting method；According to distance
Feature judges whether to meet fluorescent characteristics size and gap size feature.
It is the flow diagram of the method for another identification bank note provided in an embodiment of the present invention with reference to Fig. 3, Fig. 3.
As shown in figure 3, the method for the identification bank note includes:
Step 301, the rectangle fluorescence area image of bank note to be identified is obtained；
Step 302, it is projected using ranks and determines rectangle fluorescence area position；
Step 303, judge 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, divides each rectangle fluorescence area according to column projection properties；
Step 305, detect whether each rectangle fluorescence area is rectangular area；
Step 306, if each rectangle fluorescence area is the rectangular area, the rectangle is calculated on binary image
Column 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.
It is the flow diagram of the method for another identification bank note provided in an embodiment of the present invention with reference to Fig. 4, Fig. 4.
As shown in figure 4, the method for the identification bank note includes:
Step 401, whether the rectangle fluorescence area image for obtaining bank note to be identified 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, divides each rectangle fluorescence area according to column projection properties；
Step 403, detect whether each rectangle fluorescence area is rectangular area；
Step 404, if each rectangle fluorescence area is the rectangular area, the rectangle is calculated on binary image
Column 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 not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
It is a kind of the functional block diagram of device for identifying bank note provided in an embodiment of the present invention with reference to Fig. 5, Fig. 5.
Such as Fig. 5, described device includes:
First judgment module 501 judges the rectangle fluorescence for obtaining the rectangle fluorescence area image of bank note to be identified
Whether area size meets default size threshold value；
Divide 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, divides each rectangle fluorescence area according to column projection properties；
Detection module 503, for detecting whether each rectangle fluorescence area is rectangular area；
Preferably, the detection module 503, is specifically used for:
Whether four edges circle for detecting each fluorescence area are straight line；And/or
Whether the length of detection each edge circle meets pre-set length threshold and judges that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value.
Preferably, the detection module 503, also particularly useful for:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates of each edge circle are calculated；
Judge whether the length of each edge circle meets pre-set length threshold and judge that the interval of the rectangle fluorescence area is
It is no to meet preset interval threshold value；
If the interval that the length of each edge circle meets the pre-set length threshold and the rectangle fluorescence area meets described
Preset interval threshold value, it is determined that each fluorescence area 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 is not met
The preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
Second judgment module 504, if being the rectangular area for each rectangle fluorescence area, on binary image
The column 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 further include:
Second determining module, for before judging whether the rectangle fluorescence area size meets default size threshold value,
It is projected using ranks and determines rectangle fluorescence area position.
Preferably, described device further include:
Third determining module, if for not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified
For genuine notes.
A kind of device identifying 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, divides each rectangle according to column projection properties
Fluorescence area；Detect whether each rectangle fluorescence area is rectangular area；If each rectangle fluorescence area is the rectangular area,
The column projection in the rectangle fluorescence area is then calculated on binary image, judges 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.To use straight-line detection
Method judges rectangle fluorescence shape feature；Using improved Hough transform line detection method, time and spatial complex are reduced
Degree, can preferably use real-time currency detecting system；Judge whether rectangle fluorescent characteristics has fracture using column projecting method；According to distance
Feature judges whether to meet fluorescent characteristics size and gap size feature.
Describe the technical principle of the embodiment of the present invention in conjunction with specific embodiments above.These descriptions are intended merely to explain this
The principle of inventive embodiments, and it cannot be construed to the limitation to protection scope of the embodiment of the present invention in any way.Based on herein
Explanation, those skilled in the art, which does not need to pay for creative labor, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection scope of the embodiment of the present invention.
Claims (8)
1. a kind of method for identifying bank note, which is characterized in that the described method includes:
The rectangle fluorescence area image for obtaining bank note to be identified is projected using ranks and determines rectangle fluorescence area position, sentenced
Whether the rectangle fluorescence area size of breaking 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
Processing divides each rectangle fluorescence area according to column projection properties；
Detect whether each rectangle fluorescence area is rectangular area；
If each rectangle fluorescence area is the rectangular area, calculated on binary image in the rectangle fluorescence area
Column projection, judges whether there is fracture inside the rectangle fluorescence area, and column projection is greater than threshold value, and without being continuously background
Point then thinks that the column without fracture, think fluorescence area internal break if the columns of fracture is more than threshold value；
If having fracture inside the rectangle fluorescence area, it is determined that the bank note to be identified is counterfeit money.
2. the method according to claim 1, wherein the method also includes:
If not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified is genuine notes.
3. according to claim 1 to method described in 2 any one, which is characterized in that whether each fluorescence area of detection
For rectangular area, comprising:
Whether four edges circle for detecting 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 preset interval threshold value.
4. according to claim 1 to method described in 2 any one, which is characterized in that whether each fluorescence area of detection
For rectangular area, comprising:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates 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 preset 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 preset
Interval threshold, it is determined that each fluorescence area is rectangular area；
If the interval that the length violation of each edge circle closes the pre-set length threshold and the rectangle fluorescence area does not meet described
Preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
5. a kind of device for identifying bank note, which is characterized in that described device includes:
First judgment module judges that the rectangle fluorescence area is big for obtaining the rectangle fluorescence area image of bank note to be identified
It is small whether to meet default size threshold value；
Second determining module, for using before judging whether the rectangle fluorescence area size meets default size threshold value
Ranks, which project, determines rectangle fluorescence area position；
Divide module, if meeting the default size threshold value for the rectangle fluorescence area size, to the rectangle fluorescence
Region carries out binary conversion treatment, divides each rectangle fluorescence area according to column projection properties；
Detection module, for detecting whether each rectangle fluorescence area is rectangular area；
Second judgment module calculates institute if being the rectangular area for each rectangle fluorescence area on binary image
The column projection in rectangle fluorescence area is stated, judges whether there is fracture inside the rectangle fluorescence area, the column projection is greater than threshold
Value, and then think that the column without fracture, are thought in fluorescence area if the columns of fracture is more than threshold value without the continuous point for background
Portion's fracture；
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.
6. device according to claim 5, which is characterized in that described device further include:
Third determining module, if for not being broken inside the rectangle fluorescence area, it is determined that the bank note to be identified is true
Paper money.
7. according to device described in claim 5 to 6 any one, which is characterized in that the detection module is specifically used for:
Whether four edges circle for detecting 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 preset interval threshold value.
8. according to device described in claim 5 to 6 any one, which is characterized in that the detection module, also particularly useful for:
Whether the method for using straight-line detection detects four edges circle of the rectangle fluorescence area for straight line；
If four edges circle are straight line, the length and position coordinates 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 preset 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 preset
Interval threshold, it is determined that each fluorescence area is rectangular area；
If the interval that the length violation of each edge circle closes the pre-set length threshold and the rectangle fluorescence area does not meet described
Preset interval threshold value, it is determined that each fluorescence area is not rectangular area.
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