CN104951762B - Bill exchange prevention method and bill exchange prevention system - Google Patents
Bill exchange prevention method and bill exchange prevention system Download PDFInfo
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- CN104951762B CN104951762B CN201510331168.5A CN201510331168A CN104951762B CN 104951762 B CN104951762 B CN 104951762B CN 201510331168 A CN201510331168 A CN 201510331168A CN 104951762 B CN104951762 B CN 104951762B
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000002265 prevention Effects 0.000 title abstract 6
- 238000004380 ashing Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000002372 labelling Methods 0.000 claims description 2
- 230000006399 behavior Effects 0.000 description 4
- 238000010835 comparative analysis Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/44—Event detection
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Abstract
The invention discloses a bill exchange prevention method and a bill exchange prevention system. The bill exchange prevention system comprises a computer, a first camera shooting unit, a second camera shooting unit and a stamping machine, wherein the first camera shooting unit, the second camera shooting unit and the stamping machine are controlled by the computer; the first camera shooting unit is used for carrying out video recording on a bill in a corresponding position of the stamping machine; the second camera shooting unit is used for photographing the bill; the computer is used for receiving bill image data returned by the first camera shooting unit and the second camera shooting unit, controlling the stamping machine to move to a corresponding position above the bill according to a fixed track and stamp the bill, computing image gray difference between each bill image in a bill video before stamping and each image in the bill video after stamping, computing a bill change content ratio after stamping according to the image gray difference, judging whether the bill change content ratio excesses a set bill change content ratio threshold value or not and determining whether to start a bill exchange prevention response scheme according to a judging result.
Description
Technical field
The present invention relates to note stamping technical field, more particularly, it relates to a kind of anti-bill swap method and anti-bill
Substitute system.
Background technology
Bill can occur often during note stamping and substitute event, and the generation that bill substitutes event will cause not
The negotiation of affixing one's seal of Jing internal checks approval to market, to the financial institution based on bank or the bill safety and prestige of industry
Make a very bad impression.Just because of this, how to take precautions against bill of common occurrence during affixing one's seal and substitute event, improve negotiation
Security, eliminates bill and substitutes the negative effect that behavior brings to the financial institution based on bank or industry, it has also become urgently solve
Problem certainly.
The content of the invention
The technical problem to be solved in the present invention is the drawbacks described above for prior art, there is provided a kind of anti-bill side of substituting
Method and anti-bill substitute system.
The technical solution adopted for the present invention to solve the technical problems is:Construct a kind of anti-bill swap method, the side
Method comprises the steps:
S1, start the first image unit and the second image unit, by the first image unit to being positioned over the phase of seal-affixing machine
Answering the bill of position carries out video record, and the bill is taken pictures by the second image unit;
S2, control seal-affixing machine move to bill top relevant position by set running orbit, after the process that carries out affixing one's seal to bill
Remove bill region;
S3, calculate each width bill images in the bill video shot with video-corder before affixing one's seal of the first image unit and affix one's seal after
The gradation of image difference between every piece image in the bill video shot with video-corder, calculates after affixing one's seal according to the gradation of image difference
Bill changes content accounting;
Bill after S4, judgement are affixed one's seal changes the bill variation content accounting threshold whether content accounting meets or exceeds setting
Value, decides whether that starting anti-bill substitutes counte-rplan according to the judged result.
In the above-mentioned anti-bill swap method of the present invention, also comprised the steps before step S1:
S0, set for judging the grid gradation of image discrepancy threshold whether ticket contents change, and set for knowing
The bill occurred during other note stamping substitutes the bill of event and changes content accounting threshold value.
In the above-mentioned anti-bill swap method of the present invention, following step is also included between step S1 and step S2
Suddenly:
S12, the bill picture that the second image unit shoots is sent to ticket processing personnel and is audited, and examined in bill
After core passes through, execution step S2.
In the above-mentioned anti-bill swap method of the present invention, step S3 is specifically included:
S31, sequentially select the first image unit that a width bill images of bill video are shot with video-corder before affixing one's seal, to the width ticket
Grid process is carried out according to image, it is uniformly divided into the first grid spaces comprising W*H the first grid, it is right
First grid spaces carry out ashing process, calculate the image intensity value of each the first grid;
S32, sequentially select the first image unit that a width bill images of bill video are shot with video-corder after affixing one's seal, to the width ticket
Grid process is carried out according to image, it is uniformly divided into the second grid spaces comprising W*H the second grid, it is right
Second grid spaces carry out ashing process, calculate the image intensity value of each the second grid;
S33, calculate in the first grid spaces and the second grid spaces one the first grid of residing orientation identical and one
Grid gradation of image difference between second grid, judges whether party's table images gray scale difference value exceedes the grid image ash of setting
Degree discrepancy threshold, in this way, is then defined as the second grid of ticket contents variation by second grid, and labels and distinguished;
The quantity of tagged second grid, calculates the number of tagged second grid in S34, the second grid spaces of statistics
Amount accounts for the percentage of the second grid total quantity in the second grid spaces, and the percent value is defined as into M1%;
S35, circulation execution step S31 to S34, obtain n percent data, respectively M1%, M2%...Mn%, calculates
The mean value of the n percent data, is the accounting that bill changes content by the mean value definition;
Wherein n represents the quantity of the bill images included in the bill video shot with video-corder before affixing one's seal;
It is as follows that the bill changes content accounting computing formula:
X represents that bill changes the accounting of content;
M1%, M2%...MN% represent classical prescription in the bill video after affixing one's seal format process bill images in label
The second grid quantity account for the width bill images the second grid total quantity percentage.
In the above-mentioned anti-bill swap method of the present invention, occurs the second party of variation in step S33 to ticket contents
Lattice also comprise the steps before labelling:
Judge that the ticket contents occurred in the second grid change whether to be changed by seal-affixing machine to cause, in this way, then not to this
Two grids are labelled process.
In the above-mentioned anti-bill swap method of the present invention, decided whether according to judged result to start anti-ticket in step S4
Specifically include according to the step of substituting counte-rplan:
S41, judgement affix one's seal before and after ticket contents change percentage whether meet or exceed and changed in the bill of setting in
Hold accounting threshold value;In this way, then execution step S42, otherwise, execution step S43;
S42, judge to affix one's seal after be positioned over seal-affixing machine relevant position bill as the bill substituted, generate the first bill take out
Event is changed, the first bill is substituted into event write into Databasce, while starting operation of reporting to the police;
S43, the document field monitor video that the first image unit is shot with video-corder further is transferred, whether judge the first image unit
The bill that absorbing artificially is carried out moves/substitutes picture, in this way, then judges the relevant position for being positioned over seal-affixing machine after affixing one's seal
Bill is the bill substituted, and generates the second bill and substitutes event, and the second bill is substituted into event write into Databasce, while starting report
Alert operation, otherwise, the bill after judgement is affixed one's seal is without the bill substituted.
The present invention also constructs a kind of anti-bill and substitutes system, and the anti-bill system of substituting includes:
First image unit and the second image unit, first image unit as video detecting camera, for right
Being positioned over the bill of the relevant position of seal-affixing machine carries out video record, and second image unit is used for as camera of taking pictures
The bill is taken pictures;
Seal-affixing machine;
For controlling the calculating of first image unit, second image unit and the seal-affixing machine collaborative work
Machine, for receive that first image unit passes back affix one's seal before and after bill video, control seal-affixing machine is by the movement of both fixed tracks
Process of affixing one's seal, each width ticket in the bill video that calculating is shot with video-corder before affixing one's seal are carried out to bill top relevant position and to bill
Gradation of image difference between every piece image of the bill video shot with video-corder according to image and after affixing one's seal, according to the gradation of image difference
Bill after calculating is affixed one's seal changes content accounting, and judges that the bill changes the bill variation that content accounting meets or exceeds setting
Bill is generated during content accounting threshold value and substitutes event, and start the computer of warning.
Substitute in system in the above-mentioned anti-bill of the present invention, the anti-bill substitutes system also to be included being substituted for recording bill
The database of event.
Substitute in system in the above-mentioned anti-bill of the present invention, it is described for receive that first image unit passes back affix one's seal before
Bill video afterwards, control seal-affixing machine is moved to bill top relevant position and carries out process of affixing one's seal to bill by both fixed tracks,
Calculating affix one's seal before width bill images in the bill video shot with video-corder with affix one's seal after the width image of bill video shot with video-corder it
Between gradation of image difference, the bill after affixing one's seal is calculated according to the gradation of image difference and changes content accounting, and judge the bill
Change generation bill when content accounting meets or exceeds the bill variation content accounting threshold value of setting and substitute event, and start warning
The computer of operation includes:
Communication module, for sending to the first image unit, the second image unit and seal-affixing machine successively control signal is started,
And the reception bill video passed back by the first image unit and the bill images passed back by the second image unit;
Selecting module, for the width bill images in the bill video shot with video-corder before sequentially selecting to affix one's seal, and sequentially
A width bill images in the bill video that selection is shot with video-corder after affixing one's seal;
Bill images grid processing module, for carrying out at grid to the every width bill images selected by selecting module
Reason, it is the first grid comprising W*H the first grid that every width bill images of the bill video shot with video-corder before affixing one's seal are evenly dividing
Region, and it is the second grid spaces comprising W*H the second grid that the every width bill images shot with video-corder after affixing one's seal are evenly dividing;
Bill images are ashed processing module, for carrying out respectively at ashing to the first grid spaces and the second grid spaces
Reason;
Computing module, for calculating the image intensity value of each the first grid and the gradation of image of each the second grid
Value, calculate in the first grid spaces and the second grid spaces one the first grid of residing orientation identical and second grid it
Between grid gradation of image difference, judge whether party table images gray scale difference value exceedes the grid gradation of image difference threshold of setting
Value, in this way, then second grid is defined as the second grid of ticket contents variation;
Mark module, the second grid for changing to ticket contents is labelled and is distinguished.
Substitute in system in the above-mentioned anti-bill of the present invention, the computing module is additionally operable to count in the bill video after affixing one's seal
Classical prescription format process every width bill images in tagged second grid quantity, calculate the quantity of tagged second grid
The mean value of the percentage of the second grid total quantity in the second grid spaces when percentage is accounted for, is bill by the mean value definition
Change the accounting of content;
The accounting computing formula that the bill changes content is as follows:
Wherein
X represents that bill changes the accounting of content;
M1%, M2%...MN% represent classical prescription in the bill video after affixing one's seal format process bill images in label
The second grid quantity the second grid total quantity for accounting for the width bill images percentage n represent affix one's seal before the bill shot with video-corder
The quantity of the bill images included in video.
Implement anti-bill swap method of the invention and anti-bill substitutes system, can reach following beneficial effect:
1st, the bill video before and after affixing one's seal by the intake of video detecting camera is present invention employs, is calculated by computer
Each width bill images in the bill video that video detecting camera is shot with video-corder before affixing one's seal and the bill shot with video-corder after affixing one's seal
Gradation of image difference between every piece image of video, the bill after affixing one's seal is calculated according to the gradation of image difference and changes content
Accounting, changes bill content accounting and is compared with the bill variation content accounting threshold value of setting, is judged according to comparative result
Whether the bill after affixing one's seal is that the anti-bill of the bill substituted substitutes scheme, therefore the present invention can be based on the bill images before and after affixing one's seal
Intensity contrast analysis distinguishes that the bill occurred during note stamping substitutes behavior, generates the bill comprising operating personnel's information and takes out
Event is changed, bill is substituted into logout in database, while starting operation of reporting to the police, thus timely and effectively prevented and affixed one's seal
The bill occurred in journey substitutes event for another surreptitiously, it is to avoid company sustains a loss.
2nd, on the basis of original anti-bill substitutes scheme, staff of the present invention can also aid in having access to video detecting and take the photograph
As the bill video that head is shot with video-corder and is stored in before and after affixing one's seal in database, judge whether video detecting camera is truncated to artificially
Bill substitute picture, substitute original document using similar bill evading present system by affixing one's seal to exclude lawless people
Gradation of image comparative analysis identification bill in front and back substitutes the situation of event, further increasing anti-bill of the invention and substitutes and is
The bill of system substitutes the recognition accuracy of event.
Description of the drawings
Fig. 1 substitutes the structured flowchart of system for the anti-bill that first preferred embodiment of the present invention is provided;
Fig. 2 is the structured flowchart that the anti-bill shown in Fig. 1 substitutes the computer under system;
The flow chart of the anti-bill swap method that Fig. 3 is provided for second preferred embodiment of the present invention;
Fig. 4 changes the operational flowchart of content accounting for bill after affixing one's seal in the anti-bill swap method shown in Fig. 3.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this
The scope of bright protection.
Embodiment one
The present embodiment discloses a kind of anti-bill and substitutes system.
As shown in figure 1, the anti-bill substitutes system and including computer 100, being controlled by the first image unit of computer 100
300th, the database 500 of the second image unit 400, seal-affixing machine 200 and connection computer 100.
Wherein, the first image unit 300 is used as video detecting camera, for the corresponding positions to being positioned over seal-affixing machine 200
The bill put carries out video record, passes the bill video shot with video-corder back computer 100;
Second image unit 400 enters as camera of taking pictures, the bill for the relevant position to being positioned over seal-affixing machine 200
Row is taken pictures, and passes the bill images of shooting back computer 100.
Computer 100 is used to the bill images that the second image units of Jing 400 are passed back are sent to ticket processing personnel to carry out
Examination & verification, after ticket processing passes through, control seal-affixing machine 200 is moved to bill position top and bill is carried out by both fixed tracks
Affix one's seal and removed after processing.
The computer 100 is additionally operable to receive the bill video for affixing one's seal front/rear passed back by the first image unit 300, calculates
Each width bill images in the bill video that first image unit 300 is shot with video-corder before affixing one's seal and the bill shot with video-corder after affixing one's seal are regarded
The gradation of image difference between every piece image in frequency, the bill after affixing one's seal is calculated according to the gradation of image difference and changes content
Accounting, the bill of the bill is changed into content accounting and setting changes content accounting threshold value and is compared, according to judging to tie
Fruit decides whether that starting anti-bill substitutes counte-rplan.(for example, meet or exceed setting in the accounting for judging bill variation content
Bill when changing content accounting threshold value, generate bill and substitute event, bill is substituted into event write into Databasce 500, and start
Report to the police and operate).In the present embodiment, bill variation content accounting threshold value is preferably 30%.
As shown in Fig. 2 the computer 100 includes communication module 101, selecting module 102, the bill image space being sequentially connected
Processing module of formatting 103, bill images ashing processing module 104, computing module 105 and mark module 106.Wherein:
The communication module 101 is used to send to the first image unit 300, the second image unit 400 and seal-affixing machine 200 successively
Start control signal, receive the bill video passed back by the first image unit 300 and the ticket passed back by the second image unit 400
According to image.
The width bill images that the selecting module 102 is used in the bill video that sequentially selection is shot with video-corder before affixing one's seal, and
Sequentially select the width bill images in the bill video shot with video-corder after affixing one's seal.
The bill images grid processing module 103 is used to enter the every width bill images selected by the selecting module 102
The process of row gridization, it is comprising W*H the first grid that every width bill images of the bill video shot with video-corder before affixing one's seal are evenly dividing
The first grid spaces, and it is comprising W*H the second grids that the every width bill images shot with video-corder after affixing one's seal are evenly dividing
Two grid spaces.
The bill images ashing processing module 104 is used to be ashed the first grid spaces and the second grid spaces respectively
Process.
The computing module 105 is used to calculate the image intensity value of each the first grid and the image of each the second grid
Gray value, calculates one the first grid of residing orientation identical and a second party in the first grid spaces and the second grid spaces
Grid gradation of image difference between lattice, judges whether party's table images gray scale difference value exceedes the grid gradation of image difference of setting
Threshold value, in this way, then second grid is defined as the second grid of ticket contents variation.
The mark module 106 is used to label the second grid that ticket contents change and is distinguished.
The computing module 105 be additionally operable to count classical prescription in the bill video after affixing one's seal format process every width bill images in
The quantity of tagged second grid, the quantity for calculating tagged second grid accounts for the second grid sum in the second grid spaces
The mean value of the percentage of the amount when percentage, is the accounting that bill changes content by the mean value definition;
In the present invention, the accounting computing formula of bill variation content is as follows:
Wherein
X represents that bill changes the accounting of content;
M1%, M2%...Mn%M1%, M2%...MN% represent that classical prescription in the bill video after affixing one's seal is formatted the ticket of process
The percentage of the second grid total quantity of the width bill images is accounted for according to the quantity of tagged second grid in image;
N represents the quantity of the bill images included in the bill video shot with video-corder before affixing one's seal.
Embodiment two
The present embodiment discloses a kind of anti-bill swap method.The method includes following process step:
Step 101, preset for judging the grid gradation of image the difference threshold whether ticket contents of grid change
(in the present embodiment, grid gradation of image discrepancy threshold is preferably 50*W*H to value, and W*H represents that classical prescription is formatted the bill after processing
The grid quantity on surface), and the bill of appearance is substituted in the bill variation of event during setting for recognizing note stamping
(in the present embodiment, bill changes content accounting threshold value and is preferably 30%) to hold accounting threshold value.
Step 102, computer 100 start the first image unit 300 and the second image unit 400, single by the first shooting
First 300 pairs of bills put carry out video recording, are taken pictures by 400 pairs of bills put of the second image unit, by second
The bill images that image unit 400 is passed back are sent to ticket contents auditor and are audited.
Step 103, judge ticket contents examination & verification whether pass through.
Audit such as ticket contents and passed through, then return to step 102, otherwise, execution step 104.
Step 104, computer 100 calculate in the bill video shot with video-corder before affixing one's seal of the first image unit 300 per width
Gradation of image difference between each image of the bill video that bill images and the first image unit 300 are shot with video-corder after affixing one's seal,
The bill before and after affixing one's seal is calculated according to the gradation of image difference value and changes content accounting.
Step 105, judge that bill changes content accounting and whether exceedes in the bill of setting and change content accounting threshold value.
Content accounting threshold value is changed as Jing multilevel iudges bill is changed in bill of the content accounting not less than setting, is then performed
Step 106, otherwise, execution step 107.
Step 106, first camera is transferred from database 500 in the bill video shot with video-corder in front and back of affixing one's seal, judge first
Whether image unit 300 captures artificial bill is substituted picture.In this way, then execution step 107, otherwise, execution step 108.
Step 107, computer 100 generate bill and substitute event, and bill is substituted into logout in database 500, and open
Dynamic operation of reporting to the police (for example, open buzzer to be reported to the police, while the red light of flicker is sent by LED alarm indicators, with
Remind related personnel to process and investigate occurred bill in time and substitute behavior).
Step 108, computer 100 judge that the bill of the relevant position for being placed in seal-affixing machine 200 is replaced, and return step
Rapid 102.
As shown in figure 4, in anti-bill swap method of the invention, step 104 further includes following subprocessing step:
Step 1041, computer 100 sequentially select the first image unit 300 to be taken the photograph before affixing one's seal by selecting module 102
The width bill images are carried out grid process by one width bill images of record bill video, and it is uniformly divided into
The first grid spaces comprising W*H the first grid.
Step 1042, computer 100 sequentially select the first image unit 300 to be taken the photograph after affixing one's seal by selecting module 102
The width bill images are carried out grid process by one width bill images of record bill video, and it is uniformly divided into
The second grid spaces comprising W*H the second grid.
Step 1043, calculate in the first grid spaces and the second grid spaces one the first grid of residing orientation identical and
Grid gradation of image difference between one the second grid.
Step 1044, judge whether party table images gray scale difference value exceedes the grid gradation of image discrepancy threshold of setting.Such as
It is, then execution step 1045, otherwise, execution step 1046.
Step 1045, judge that the ticket contents of the second grid change whether to be changed by seal-affixing machine 200 and cause.In this way, then hold
Row step 1046, otherwise, execution step 1047.
Step 1046, process that or not second grid do not labelled.
Step 1047, the second grid is defined as the grid that ticket contents change, and the second grid is labelled, with
It is easy to distinguish and counts.
The quantity of tagged second grid accounts for the hundred of the second grid total quantity in step 1048, the second grid spaces of calculating
Divide ratio.Step 1048 be finished after return to step 1041.
Step 1049, circulation execution step 1041 obtain N group percent datas to step 1048, calculate the N group percentages
The mean value of data, as bill change the accounting of content.
It is as follows that the present invention changes content accounting computing formula in bill after affixing one's seal:
Wherein
X represents that bill changes the accounting of content;
M1%, M2%...Mn%M1%, M2%...MN% represent that classical prescription in the bill video after affixing one's seal is formatted the ticket of process
The percentage of the second grid total quantity of the width bill images is accounted for according to the quantity of tagged second grid in image;
N represents the quantity of the bill images included in the bill video shot with video-corder before affixing one's seal.
In sum, anti-bill swap method of the invention and the anti-bill system of substituting have the advantage that and be especially embodied in:
1st, the bill video before and after affixing one's seal by the intake of video detecting camera is present invention employs, by computer 100
Calculate each width bill images in the bill video shot with video-corder before affixing one's seal of video detecting camera and shot with video-corder after affixing one's seal
Gradation of image difference between the corresponding width image of bill video, the bill after affixing one's seal is calculated according to the gradation of image difference and is changed
Content accounting, changes bill content accounting and is compared with the bill variation content accounting threshold value of setting, according to comparative result
Judge whether the bill after affixing one's seal substitutes scheme as the anti-bill of the bill substituted, therefore the present invention can be based on the bill before and after affixing one's seal
Gradation of image comparative analysis distinguishes that the bill occurred during note stamping substitutes behavior, generates the ticket comprising operating personnel's information
According to the event of substituting, bill is substituted into logout in database 500, while starting operation of reporting to the police, thus timely and effectively prevented
The bill occurred during affixing one's seal substitutes event for another surreptitiously, it is to avoid company sustains a loss.
2nd, on the basis of original anti-bill substitutes scheme, staff of the present invention can also aid in having access to video detecting and take the photograph
As the bill video that head is shot with video-corder and is stored in before and after affixing one's seal in database 500, judge whether video detecting camera is truncated to
Artificial bill substitutes picture, is passed through evading present system with excluding lawless people and substituting original document using similar bill
Gradation of image comparative analysis identification bill before and after affixing one's seal substitutes the situation of event, further increasing anti-bill of the invention and takes out
The bill for changing system substitutes the recognition accuracy of event.
One of ordinary skill in the art will appreciate that realizing all or part of link in above-described embodiment method, can be
The hardware of correlation is instructed by the program of computer 100 completing, described program can be stored in a computer 100 and can read deposits
In storage media, the program is upon execution, it may include such as the link of the embodiment of above-mentioned each method.Wherein, described storage medium
Can be magnetic disc, CD, read-only memory (Read Only Memory, ROM) or random access memory (Random
Access Memory, RAM) etc..
Embodiments of the invention are described above in conjunction with accompanying drawing, but be the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned specific embodiment is only schematic, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (7)
1. a kind of anti-bill swap method, it is characterised in that methods described comprises the steps:
S1, start the first image unit and the second image unit, by the first image unit to being positioned over the corresponding positions of seal-affixing machine
The bill put carries out video record, and the bill is taken pictures by the second image unit;
S2, control seal-affixing machine move to bill top relevant position by set running orbit, remove after the process that carries out affixing one's seal to bill
Bill region;
S3, calculate each width bill images in the bill video shot with video-corder before affixing one's seal of the first image unit and shoot with video-corder after affixing one's seal
Bill video in every piece image between gradation of image difference, the bill after affixing one's seal is calculated according to the gradation of image difference
Change content accounting;
Bill after S4, judgement are affixed one's seal changes the bill variation content accounting threshold value whether content accounting meets or exceeds setting,
Decide whether that starting anti-bill substitutes counte-rplan according to the judged result;
Wherein, step S3 is specifically included:
S31, sequentially select the first image unit that a width bill images of bill video are shot with video-corder before affixing one's seal, to the width bill
As carrying out grid process, it is uniformly divided into the first grid spaces comprising W*H the first grid, to first
Grid spaces carry out ashing process, calculate the image intensity value of each the first grid;
S32, sequentially select the first image unit that a width bill images of bill video are shot with video-corder after affixing one's seal, to the width bill
As carrying out grid process, it is uniformly divided into the second grid spaces comprising W*H the second grid, to second
Grid spaces carry out ashing process, calculate the image intensity value of each the second grid;
S33, calculate in the first grid spaces and the second grid spaces one the first grid of residing orientation identical and one second
Grid gradation of image difference between grid, judges whether party's table images gray scale difference value exceedes the grid gradation of image for setting poor
Different threshold value, in this way, is then defined as the second grid of ticket contents variation by second grid, and labels and distinguished;
The quantity of tagged second grid in S34, the second grid spaces of statistics, the quantity for calculating tagged second grid is accounted for
The percentage of the second grid total quantity, by the percent value M is defined as in second grid spaces1%;
S35, circulation execution step S31 to S34, obtain n percent data, respectively M1%, M2%...Mn%, calculates the n
The mean value of individual percent data, is the accounting that bill changes content by the mean value definition;
Wherein n represents the quantity of the bill images included in the bill video shot with video-corder before affixing one's seal;
It is as follows that the bill changes content accounting computing formula:
X represents that bill changes the accounting of content;
M1%, M2%...Mn% represent classical prescription in the bill video after affixing one's seal format process bill images in tagged second
The quantity of grid accounts for the percentage of the second grid total quantity of the width bill images.
2. anti-bill swap method according to claim 1, it is characterised in that also included before step S1 as follows
Step:
S0, set for judging the grid gradation of image discrepancy threshold whether ticket contents change, and set for recognizing ticket
The bill for substituting event according to the bill occurred during affixing one's seal changes content accounting threshold value.
3. anti-bill swap method according to claim 2, it is characterised in that step S1 and step S2 it
Between also comprise the steps:
S12, the bill picture that the second image unit shoots is sent to ticket processing personnel and is audited, and it is logical in ticket processing
Later, execution step S2.
4. anti-bill swap method according to claim 1, it is characterised in that ticket contents are gone out in step S33
The second grid for now changing also comprises the steps before labelling:
Judge that the ticket contents occurred in the second grid change whether to be changed by seal-affixing machine to cause, in this way, then not to the second party
Lattice are labelled process.
5. anti-bill swap method according to claim 4, it is characterised in that according to the judged result in step S4
Decide whether to start the step of anti-bill substitutes counte-rplan and specifically include:
Whether the ticket contents change percentage before and after S41, judgement are affixed one's seal meets or exceeds and change in the bill of setting content and account for
Compare threshold value;In this way, then execution step S42, otherwise, execution step S43;
S42, judge to affix one's seal after be positioned over seal-affixing machine relevant position bill as the bill substituted, generate the first bill substitute thing
Part, by the first bill event write into Databasce is substituted, while starting operation of reporting to the police;
S43, the document field monitor video that the first image unit is shot with video-corder further is transferred, judge whether the first image unit absorbs
Picture is moved/substituted to the bill for artificially carrying out, in this way, then the bill of the relevant position for being positioned over seal-affixing machine after affixing one's seal is judged
For the bill substituted, generate the second bill and substitute event, the second bill is substituted into event write into Databasce, while starting the behaviour that reports to the police
Make, otherwise, it is determined that the bill after affixing one's seal is without the bill substituted.
6. a kind of anti-bill of anti-bill swap method of application as described in arbitrary in claim 1 to 5 substitutes system, its feature
It is that the anti-bill system of substituting includes:
First image unit and the second image unit, first image unit as video detecting camera, for placing
Bill in the relevant position of seal-affixing machine carries out video record, second image unit as camera of taking pictures, for this
Bill is taken pictures;
Seal-affixing machine;
For controlling the computer of first image unit, second image unit and the seal-affixing machine collaborative work, use
In receive that first image unit passes back affix one's seal before and after bill video, control seal-affixing machine is moved to bill by both fixed tracks
Top relevant position simultaneously carries out process of affixing one's seal to bill, each width bill images in the bill video that calculating is shot with video-corder before affixing one's seal
With affix one's seal after gradation of image difference between every piece image of bill video for shooting with video-corder, lid is calculated according to the gradation of image difference
Bill after chapter changes content accounting, and judges that bill variation content accounting meets or exceeds the bill variation content of setting and accounts for
Event is substituted than generating bill during threshold value, and starts the computer of operation of reporting to the police;
Wherein, it is described for receive that first image unit passes back affix one's seal before and after bill video, control seal-affixing machine was by both
Fixed track is moved to bill top relevant position and process of affixing one's seal is carried out to bill, in the bill video that calculating is shot with video-corder before affixing one's seal
A width bill images and the width image for the bill video shot with video-corder after affixing one's seal between gradation of image difference, according to image ash
Degree difference calculates the bill after affixing one's seal and changes content accounting, and judges that the bill changes the ticket that content accounting meets or exceeds setting
Substituting event according to bill is generated when changing content accounting threshold value, and start the computer of operation of reporting to the police includes:
Communication module, for sending to the first image unit, the second image unit and seal-affixing machine successively control signal is started, and is connect
Receive the bill video passed back by the first image unit and the bill images passed back by the second image unit;
Selecting module, for the width bill images in the bill video shot with video-corder before sequentially selecting to affix one's seal, and sequentially selects
A width bill images in the bill video shot with video-corder after affixing one's seal;
Bill images grid processing module, for carrying out grid process to the every width bill images selected by selecting module,
It is the first grid zone comprising W*H the first grid that every width bill images of the bill video shot with video-corder before affixing one's seal are evenly dividing
Domain, and it is the second grid spaces comprising W*H the second grid that the every width bill images shot with video-corder after affixing one's seal are evenly dividing;
Bill images are ashed processing module, for carrying out ashing process respectively to the first grid spaces and the second grid spaces;
Computing module, for calculating the image intensity value of each the first grid and the image intensity value of each the second grid,
Calculate in the first grid spaces and the second grid spaces between one the first grid of residing orientation identical and second grid
Grid gradation of image difference, judge whether party table images gray scale difference value exceedes the grid gradation of image discrepancy threshold of setting,
In this way, then by second grid be defined as ticket contents variation the second grid;
Mark module, the second grid for changing to ticket contents is labelled and is distinguished;
The computing module be additionally operable to count classical prescription in the bill video after affixing one's seal format process every width bill images in mark-on
The quantity of the second grid of note, the quantity for calculating tagged second grid accounts for the second grid total quantity in the second grid spaces
The mean value of the percentage when percentage, is the accounting that bill changes content by the mean value definition;
The accounting computing formula that the bill changes content is as follows:
Wherein
X represents that bill changes the accounting of content;
N represents the quantity of the bill images included in the bill video shot with video-corder before affixing one's seal;
M1%, M2%...Mn% represent respectively classical prescription in the bill video after affixing one's seal format process bill images in it is tagged
The quantity of the second grid accounts for the percentage of the second grid total quantity of the width bill images.
7. anti-bill according to claim 6 substitutes system, it is characterised in that the anti-bill substitutes system also to be included using
The database of event is substituted in record bill.
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CN107323114B (en) * | 2017-06-22 | 2019-08-16 | 珠海汇金科技股份有限公司 | Intrusion detection method, system and the print control instrument of print control instrument |
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CN100345155C (en) * | 2004-09-22 | 2007-10-24 | 珠海金联安警用技术研究发展中心有限公司 | Anti-fake bill processing system |
CN103208004A (en) * | 2013-03-15 | 2013-07-17 | 北京英迈杰科技有限公司 | Automatic recognition and extraction method and device for bill information area |
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