CN108830594B - Multi-mode electronic fare payment system - Google Patents
Multi-mode electronic fare payment system Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/342—Cards defining paid or billed services or quantities
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
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- G—PHYSICS
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/352—Contactless payments by cards
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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Abstract
The present invention relates to a kind of multi-mode electronic fare payment systems, comprising: the top in the channel ETC is arranged in ETC information collecting device, for carrying out image information collecting to the vehicle being located in the channel ETC, to obtain and export corresponding ETC channel image；Dynamic range adjusts equipment, connect with the ETC information collecting device, for receiving the ETC channel image, carries out dynamic range to the ETC channel image and is adjusted so that the ETC channel image reaches default dynamic range width；Fringe analysis equipment is connect with the ETC information collecting device, for receiving the ETC channel image, fringe analysis is carried out to the ETC channel image, whether there is fringes noise in the determination ETC channel image, and determining that there are when fringes noise, issue striped to obtain signal.By means of the invention it is possible to ensure that the normalization of card is rinsed in the channel ETC.
Description
Technical field
The present invention relates to e-payment field more particularly to a kind of multi-mode electronic fare payment systems.
Background technique
In the prior art, there are following two main Types for e-payment association instrument:
1, SSL (Secure Sockets Layer, secure socket layer protocol).Ssl layer includes two protocol sublayers,
SSL record protocol and ssl handshake protocol.SSL record protocol basic characteristics are that connection is dedicated and reliable.SSL shakes hands association
View basic characteristics be can certification to the identity of communicating pair, the both sides to hold consultation secret be it is safe, negotiate to be reliable
's.
2, SET (Secure Electronic Transaction, Secure Electronics Transactions protocol).The mesh of set protocol operation
Mark include guarantee information on the internet safe transmission, guarantee e-commerce participant information it is mutually isolated, solve recognize on the net
Card problem, real-time, specification protocol and the message format for guaranteeing online transaction.Object involved in set protocol have consumer,
Line shop, merchant bank, electronic money issuer and authentication center (CA).
Summary of the invention
In order to solve the technical issues of can not currently evading the illegal phenomenon for usurping or borrowing ETC password card, the present invention is mentioned
A kind of multi-mode electronic fare payment system has been supplied, the electronics based on vehicle's contour feature is first carried out to the vehicle in the channel ETC and is received
Take operation, in the case where the electronic charging operation based on vehicle's contour feature can not be executed, just executes based on ETC password card
Electronic charging operation, it is particularly critical, it introduces according to the charging mode trigger mechanism of type of vehicle and targetedly moves
State range Regulation mechanism improves the precision and execution degree of above-mentioned multi-mode e-payment；It wherein, can be in image to be processed
Fringes noise situation analyzed, and adaptable image filtering mechanism is formulated based on analysis result, to realize image
Specific aim filtering processing.
According to an aspect of the present invention, a kind of multi-mode electronic fare payment system is provided, the system comprises:
The top in the channel ETC is arranged in ETC information collecting device, for carrying out image to the vehicle being located in the channel ETC
Information collection, to obtain and export corresponding ETC channel image.
More specifically, in the multi-mode electronic fare payment system, further includes:
Dynamic range adjusts equipment, connect with the ETC information collecting device, right for receiving the ETC channel image
The ETC channel image carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width.
More specifically, in the multi-mode electronic fare payment system, further includes:
Fringe analysis equipment is connect with the ETC information collecting device, for receiving the ETC channel image, to described
ETC channel image carries out fringe analysis, whether there is fringes noise in the determination ETC channel image, and exists determining
When fringes noise, issues striped and obtain signal.
More specifically, in the multi-mode electronic fare payment system, further includes:
Window extract equipment is connect with the fringe analysis equipment, for the magnitude extraction neck based on the fringes noise
The size of domain window, wherein the amplitude of the fringes noise is bigger, and the field window of extraction is bigger；TF stores equipment, for depositing
Store up non-striped weighted value and striped weighted value, the non-striped weighted value is the pixel not quilt in fringe area in the window of field
The weighted value of imparting, the striped weighted value is the weighted value that pixel is endowed in fringe area in the window of field, described
Non-striped weighted value is the multiple of the striped weighted value；Filtering execute equipment, respectively with the fringe analysis equipment, the window
Mouthful extract equipment connect with TF storage equipment, for when receiving the striped acquisition signal, to the channel ETC figure
Each of picture pixel carries out following filter action: the pixel as target pixel points and is obtained into its pixel value,
Each neck of target pixel points described in the ETC channel image is determined based on the field window that the window extract equipment is extracted
The every field pixel value of domain pixel, determines whether every field pixel value is located at fringe area, and when field, pixel value is located at
When fringe area, it is endowed striped weighted value, when pixel value is not located at fringe area when field, is endowed non-striped weighted value,
The filtered pixel value of the target pixel points is obtained based on every field pixel value and respective weighted value；Image output device,
It executes equipment with the filtering to connect, for the filtered pixel value group based on each of ETC channel image pixel
At filtered image, and export the filtered image；Adaptive equalizing apparatus connect with described image output equipment, is used for
The filtered image is received, adaptive equalization processing is executed to the filtered image, to obtain corresponding balanced image, and
Export the balanced image；Vehicle type recognition equipment is connect with the adaptive equalizing apparatus, for receiving the equilibrium figures
Picture carries out type identification to the contour of the vehicle in the balanced image, when the corresponding type of the contour of the vehicle belongs to based on outer
When the type of shape charge, detection trigger signal is issued；Vehicle characteristics detection device is connect with the vehicle type recognition equipment,
For being detected to the vehicle characteristics in the balanced image, and export detection when receiving the detection trigger signal
The vehicle characteristics arrived；The top in the channel ETC is arranged in electronic payment devices, positioned at the side of the ETC information collecting device,
It is connect with the vehicle characteristics detection device, for corresponding with the vehicle characteristics detected based on the vehicle characteristics pair detected
Electronic account carries out operation of deducting fees；The top in the channel ETC is arranged in live card-reading apparatus, is located at the ETC information collecting device
Side, connect with the vehicle type recognition equipment, for when receiving the card reading identification signal, in the channel ETC
The ETC password card of front of the car carry out card reading and deduct fees operation；Wherein, it is executed in equipment in the filtering, is based on every field
The filtered pixel value that pixel value and respective weighted value obtain the target pixel points includes: each of calculating every field pixel value
From the sum of weighted value using as weight and, the product of each field pixel value and its weighted value is calculated using as field pixel
Product removes the pixel aggregate-value by the field pixel product addition of every field pixel to obtain pixel aggregate-value
With the weight and with the filtered pixel value of the determination target pixel points.
More specifically, in the multi-mode electronic fare payment system:
The fringe analysis equipment is also used to determining that there is no when fringes noise, issue striped signal has not been obtained；Wherein,
The filtering executes equipment and is also used to when receiving the striped signal having not been obtained, directly using the ETC channel image as
The filtered image output.
More specifically, in the multi-mode electronic fare payment system: in dynamic range adjustment equipment, to described
ETC channel image carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width to include: to work as institute
The dynamic range for stating ETC channel image is less than the default dynamic range width, then carries out dynamic model to the ETC channel image
Enclose adjustment.
More specifically, in the multi-mode electronic fare payment system: in dynamic range adjustment equipment, to described
ETC channel image carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width to include: to work as institute
State ETC channel image dynamic range be more than or equal to the default dynamic range width, then be not required to the ETC channel image into
The adjustment of Mobile state range.
More specifically, in the multi-mode electronic fare payment system: the vehicle characteristics detection device receive it is described
When card reading identification signal, any detection is not carried out to the vehicle characteristics in the balanced image.
More specifically, in the multi-mode electronic fare payment system:
In the vehicle type recognition equipment, when the corresponding type of the contour of the vehicle belongs to the class based on shape charge
When type, card reading identification signal is issued；Wherein, the live card-reading apparatus is also used to when receiving the detection trigger signal,
Card reading is not carried out to the ETC password card of the front of the car in the channel ETC to deduct fees operation.
Detailed description of the invention
Embodiment of the present invention is described below with reference to attached drawing, in which:
Fig. 1 is the on-the-spot schematic according to the multi-mode electronic fare payment system shown in embodiment of the present invention.
Specific embodiment
The embodiment of multi-mode electronic fare payment system of the invention is described in detail below with reference to accompanying drawings.
E-payment, which refers to, passes through letter payment information using safe electronic means between consumer, businessman and financial institution
It is transmitted to breath network security bank or corresponding processing mechanism, for realizing the behavior of currency payment or fund flow.
In the 1990s, Internet moves towards rapidly universalness, enterprise and family gradually are moved towards from university, scientific research institution
Front yard, function also develop into a kind of popular information communication means from information sharing, and trade activity steps into this
Kingdom.It by using internet, that is, reduces costs, also creates more commercial opportunities, e-commerce technology is to be able to
Development, making it gradually becomes the maximum hot spot of Internet application.For adapt to this trend of the market of e-commerce, e-payment with
Grow up.
In October, 2005, People's Bank of China announce " e-payment guide (number one) ", it is specified that: " e-payment refers to
Unit, individual is direct or other people is authorized to pass through electric terminal sending payment instruction, realizes the behavior that currency payment and fund shift.
The type of e-payment initiates mode according to electronic payment instruction and is divided into online payment, phone-payment, mobile payment, point of sale end
End transaction, ATM transaction and other e-payments ".E-payment refers to the party of electronic transaction in simple terms, packet
Consumer, manufacturer and financial institution are included, using secured electronic charging means, the currency payment carried out by network or cash flow
Turn.E-payment is the important component of e-commerce system.
In order to overcome above-mentioned deficiency, the present invention has built a kind of multi-mode electronic fare payment system, can effectively solve the problem that corresponding
The technical issues of.
Fig. 1 is the on-the-spot schematic according to the multi-mode electronic fare payment system shown in embodiment of the present invention.Wherein, 1 is
ETC information collecting device, 2 be ETC password card, and 3 be passing vehicle.
The multi-mode electronic fare payment system shown according to an embodiment of the present invention includes:
The top in the channel ETC is arranged in ETC information collecting device, for carrying out image to the vehicle being located in the channel ETC
Information collection, to obtain and export corresponding ETC channel image.
Then, continue that the specific structure of multi-mode electronic fare payment system of the invention is further detailed.
In the multi-mode electronic fare payment system, further includes:
Dynamic range adjusts equipment, connect with the ETC information collecting device, right for receiving the ETC channel image
The ETC channel image carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width.
In the multi-mode electronic fare payment system, further includes:
Fringe analysis equipment is connect with the ETC information collecting device, for receiving the ETC channel image, to described
ETC channel image carries out fringe analysis, whether there is fringes noise in the determination ETC channel image, and exists determining
When fringes noise, issues striped and obtain signal.
In the multi-mode electronic fare payment system, further includes:
Window extract equipment is connect with the fringe analysis equipment, for the magnitude extraction neck based on the fringes noise
The size of domain window, wherein the amplitude of the fringes noise is bigger, and the field window of extraction is bigger；
TF stores equipment, and for storing non-striped weighted value and striped weighted value, the non-striped weighted value is field window
The weighted value that pixel is not endowed in fringe area in mouthful, the striped weighted value are pixel in the window of field in striped
The weighted value being endowed when region, the non-striped weighted value are the multiples of the striped weighted value；
Filtering executes equipment, stores equipment with the fringe analysis equipment, the window extract equipment and the TF respectively
Connection, for being carried out to each of ETC channel image pixel following when receiving the striped acquisition signal
Filter action: as target pixel points and obtaining its pixel value for the pixel, is extracted based on the window extract equipment
Field window determines the every field pixel value of the every field pixel of target pixel points described in the ETC channel image,
It determines whether every field pixel value is located at fringe area, when field pixel value is located at fringe area, is endowed striped weight
Value, when pixel value is not located at fringe area when field, is endowed non-striped weighted value, based on every field pixel value and respectively
Weighted value obtains the filtered pixel value of the target pixel points；
Image output device executes equipment with the filtering and connect, for based on each of described ETC channel image
The filtered pixel value of pixel forms filtered image, and exports the filtered image；
Adaptive equalizing apparatus is connect with described image output equipment, for receiving the filtered image, to the filter
Image executes adaptive equalization processing after wave, to obtain corresponding balanced image, and exports the balanced image；
Vehicle type recognition equipment is connect with the adaptive equalizing apparatus, for receiving the balanced image, to described
Contour of the vehicle in balanced image carries out type identification, when the corresponding type of the contour of the vehicle belongs to the class based on shape charge
When type, detection trigger signal is issued；
Vehicle characteristics detection device is connect with the vehicle type recognition equipment, for receiving the detection triggering
When signal, the vehicle characteristics in the balanced image are detected, and export the vehicle characteristics detected；
The top in the channel ETC is arranged in electronic payment devices, and described positioned at the side of the ETC information collecting device
Vehicle characteristics detection device connection, for based on the vehicle characteristics pair detected electronics account corresponding with the vehicle characteristics detected
Family carries out operation of deducting fees；
The top in the channel ETC is arranged in live card-reading apparatus, and described positioned at the side of the ETC information collecting device
Vehicle type recognition equipment connection, for when receiving the card reading identification signal, to the front of the car in the channel ETC
ETC password card carries out card reading and deducts fees operation；
Wherein, it is executed in equipment in the filtering, the mesh is obtained based on every field pixel value and respective weighted value
The filtered pixel value of mark pixel include: calculate the sum of respective weighted value of every field pixel value using as weight and, calculate
The product of each field pixel value and its weighted value is using as field pixel dot-product, by the field picture of every field pixel
Vegetarian refreshments product addition is to obtain pixel aggregate-value, by the pixel aggregate-value divided by the weight and with the determination object pixel
The filtered pixel value of point.
In the multi-mode electronic fare payment system:
The fringe analysis equipment is also used to determining that there is no when fringes noise, issue striped signal has not been obtained；
Wherein, the filtering executes equipment and is also used to when receiving the striped signal having not been obtained, directly by the ETC
Channel image is exported as the filtered image.
In the multi-mode electronic fare payment system: in dynamic range adjustment equipment, to the ETC channel image
It carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width to include: when the channel ETC figure
The dynamic range of picture is less than the default dynamic range width, then carries out dynamic range adjustment to the ETC channel image.
In the multi-mode electronic fare payment system: in dynamic range adjustment equipment, to the ETC channel image
It carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width to include: when the channel ETC figure
The dynamic range of picture is more than or equal to the default dynamic range width, then is not required to carry out dynamic range to the ETC channel image
Adjustment.
In the multi-mode electronic fare payment system: the vehicle characteristics detection device is receiving the card reading identification letter
Number when, any detection is not carried out to the vehicle characteristics in the balanced image.
In the multi-mode electronic fare payment system: in the vehicle type recognition equipment, when the contour of the vehicle pair
When the type answered belongs to the type based on shape charge, card reading identification signal is issued；
Wherein, the live card-reading apparatus is also used to when receiving the detection trigger signal, not in the channel ETC
The ETC password card of front of the car carries out card reading and deducts fees operation.
In addition, executing in equipment in the filtering, image filtering is that is, right under conditions of retaining image minutia as far as possible
The noise of target image is inhibited, and is indispensable operation in image preprocessing, and the quality for the treatment of effect is by direct shadow
The validity and reliability for handling and analyzing is rung to subsequent image.
Not perfect due to imaging system, transmission medium and recording equipment etc., digital picture formed at it, transmission log mistake
The often pollution by a variety of noises in journey.In addition, certain links in image procossing when the picture object inputted and are not so good as pre-
Also noise can be introduced when thinking in result images.These noises often show as one on the image and cause the isolated of stronger visual effect
Pixel or block of pixels.Generally, noise signal it is uncorrelated to the object to be studied it occur with useless message form, upset figure
The observable information of picture.For data image signal, psophometer is either large or small extreme value, these extreme values are acted on by plus-minus
On the true gray value of image pixel, cause bright, dim spot to interfere image, greatly reduce picture quality, influence image restoration,
The progress of the subsequent work such as segmentation, feature extraction, image recognition.The filter for constructing a kind of effectively inhibition noise must be taken into consideration
Two basic problems: the noise that can be effectively removed in target and background；Meanwhile can protect well image object shape,
Size and specific geometry and topological features.
One of common image filtering mode is nonlinear filter, it is, in general, that when signal spectrum and noise frequency
When composing aliasing or such as the noise as caused by mission nonlinear or there are non-gaussian to make an uproar when containing nonadditivity noise in signal
Sound etc.), traditional linear filter technology, if Fourier converts, while filtering out noise, always blurred picture is thin in some way
Section (such as edge) and then the extraction property reduction for leading to the positioning accuracy and feature as linear character.And nonlinear filter is
Based on a kind of Nonlinear Mapping relationship to input signal, often a certain specific noise approximatively can be mapped as zero and retained
Signal wants feature, thus it can overcome the shortcoming of linear filter to a certain extent.
Using multi-mode electronic fare payment system of the invention, for the row for usurping or borrowing ETC password card in the prior art
The technical issues of for that can not take precautions against, by the way that the electronic charging based on vehicle's contour feature is first carried out to the vehicle in the channel ETC
Operation just executes the electricity based on ETC password card in the case where that can not execute the electronic charging operation based on vehicle's contour feature
Son charge operation, it is particularly critical, it introduces according to the charging mode trigger mechanism of type of vehicle and targetedly dynamic
Range Regulation mechanism improves the precision and execution degree of above-mentioned multi-mode e-payment；It wherein, can be in image to be processed
Fringes noise situation is analyzed, and formulates adaptable image filtering mechanism based on analysis result, realizes being directed to for image
Property filtering processing, to solve above-mentioned technical problem.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not to
Limit the present invention.For any person skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications all are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of variation.Therefore, anything that does not depart from the technical scheme of the invention are right according to the technical essence of the invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments still fall within the range of technical solution of the present invention protection
It is interior.
Claims (5)
1. a kind of multi-mode electronic fare payment system, which is characterized in that the system comprises:
The top in the channel ETC is arranged in ETC information collecting device, for carrying out image information to the vehicle being located in the channel ETC
Acquisition, to obtain and export corresponding ETC channel image；
Dynamic range adjusts equipment, connect with the ETC information collecting device, for receiving the ETC channel image, to described
ETC channel image carries out dynamic range and is adjusted so that the ETC channel image reaches default dynamic range width；
Fringe analysis equipment is connect with the ETC information collecting device, for receiving the ETC channel image, to the ETC
Channel image carries out fringe analysis, whether there is fringes noise in the determination ETC channel image, and is determining that there are stripeds
When noise, issues striped and obtain signal；
Window extract equipment is connect with the fringe analysis equipment, for the magnitude extraction field window based on the fringes noise
The size of mouth, wherein the amplitude of the fringes noise is bigger, and the field window of extraction is bigger；
TF stores equipment, and for storing non-striped weighted value and striped weighted value, the non-striped weighted value is in the window of field
The weighted value that pixel is not endowed in fringe area, the striped weighted value are pixel in the window of field in fringe area
When the weighted value that is endowed, the non-striped weighted value is the multiple of the striped weighted value；
Filtering executes equipment, connect respectively with the fringe analysis equipment, the window extract equipment and the TF storage equipment,
For carrying out following filtering to each of ETC channel image pixel when receiving the striped acquisition signal
Movement: as target pixel points and obtaining its pixel value for the pixel, the field extracted based on the window extract equipment
Window determines the every field pixel value of the every field pixel of target pixel points described in the ETC channel image, determines
Whether every field pixel value is located at fringe area, when field pixel value is located at fringe area, is endowed striped weighted value, when
When field pixel value is not located at fringe area, it is endowed non-striped weighted value, is based on every field pixel value and respective weight
Value obtains the filtered pixel value of the target pixel points；
Image output device executes equipment with the filtering and connect, for based on each of ETC channel image pixel
The filtered pixel value of point forms filtered image, and exports the filtered image；
Adaptive equalizing apparatus is connect with described image output equipment, for receiving the filtered image, after the filtering
Image executes adaptive equalization processing, to obtain corresponding balanced image, and exports the balanced image；
Vehicle type recognition equipment is connect with the adaptive equalizing apparatus, for receiving the balanced image, to the equilibrium
Contour of the vehicle in image carries out type identification, when the corresponding type of the contour of the vehicle belongs to the type based on shape charge
When, issue detection trigger signal；
Vehicle characteristics detection device is connect with the vehicle type recognition equipment, for receiving the detection trigger signal
When, the vehicle characteristics in the balanced image are detected, and export the vehicle characteristics detected；
The top in the channel ETC is arranged in electronic payment devices, positioned at the side of the ETC information collecting device, with the vehicle
Feature detection device connection, for based on the vehicle characteristics pair detected electronic account corresponding with the vehicle characteristics detected into
Capable operation of deducting fees；
The top in the channel ETC is arranged in live card-reading apparatus, positioned at the side of the ETC information collecting device, with the vehicle
Type identification equipment connection, for when receiving card reading identification signal, to the ETC password card of the front of the car in the channel ETC
Card reading is carried out to deduct fees operation；
Wherein, it is executed in equipment in the filtering, the target picture is obtained based on every field pixel value and respective weighted value
The filtered pixel value of vegetarian refreshments include: calculate the sum of respective weighted value of every field pixel value using as weight and, calculate each
The product of a field pixel value and its weighted value is using as field pixel dot-product, by the field pixel of every field pixel
Product addition is to obtain pixel aggregate-value, by the pixel aggregate-value divided by the weight and with the determination target pixel points
Filtered pixel value；
Wherein, the filtering executes the image filtering mode that equipment executes, right under conditions of retaining image minutia as far as possible
The noise of target image is inhibited, and is indispensable operation in image preprocessing, and the quality for the treatment of effect is by direct shadow
Ring to subsequent image handle and analyze validity and reliability, for handle shown as in data image signal it is either large or small
Extreme value, these extreme values are acted on the true gray value of image pixel by plus-minus, cause bright, dim spot to interfere image, greatly
Picture quality is reduced, the progress of image restoration, segmentation, feature extraction, the subsequent work of image recognition is influenced.
2. multi-mode electronic fare payment system as described in claim 1, it is characterised in that:
The fringe analysis equipment is also used to determining that there is no when fringes noise, issue striped signal has not been obtained；
Wherein, the filtering executes equipment and is also used to when receiving the striped signal having not been obtained, directly by the channel ETC
Image is exported as the filtered image.
3. multi-mode electronic fare payment system as claimed in claim 2, it is characterised in that:
In dynamic range adjustment equipment, dynamic range is carried out to the ETC channel image and is adjusted so that the ETC is logical
It includes: when the dynamic range of the ETC channel image is less than the default dynamic model that road image, which reaches default dynamic range width,
Width is enclosed, then dynamic range adjustment is carried out to the ETC channel image.
4. multi-mode electronic fare payment system as claimed in claim 3, it is characterised in that:
In dynamic range adjustment equipment, dynamic range is carried out to the ETC channel image and is adjusted so that the ETC is logical
It includes: to move when the dynamic range of the ETC channel image is more than or equal to described preset that road image, which reaches default dynamic range width,
State range wide is then not required to carry out dynamic range adjustment to the ETC channel image.
5. multi-mode electronic fare payment system as claimed in claim 4, it is characterised in that:
The vehicle characteristics detection device is not special to the vehicle in the balanced image when receiving the card reading identification signal
Sign carries out any detection.
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