WO2012022086A1

WO2012022086A1 - Electronic entrance ticket process method and device thereof

Info

Publication number: WO2012022086A1
Application number: PCT/CN2010/079109
Authority: WO
Inventors: 曹妍
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-16
Filing date: 2010-11-25
Publication date: 2012-02-23
Also published as: CN101923733B; CN101923733A

Abstract

An electronic entrance ticket processing method and a device thereof are provided. The method involves the following steps. A recorded first watermark identifier is read by a mobile terminal. An electronic entrance ticket is processed by the mobile terminal according to a preset watermark extracting algorithm, so as to obtain an original entrance ticket image and a watermark image comprising a second watermark identifier. The first watermark identifier is compared with the second watermark identifier by the mobile terminal to determine they are the same or not, and the entrance ticket is validated as a legal entrance ticket if the watermark identifiers are same. The electronic entrance ticket processing method and the device thereof achieve the purpose that the validity of the electronic entrance ticket is proved by the mobile terminal only.

Description

Electronic ticket processing method and device

The present invention relates to the field of mobile communications, and more particularly to an electronic ticket processing method and apparatus. Background technique

With the development of science and technology, electronicization has become a trend, and the electronicization of tickets has gradually been widely used in people's daily life. The Beijing Olympics, various competitions, exhibitions, and even animal parks already have electronic tickets. People can stay at home, not to queue, and get the tickets they want with the MMS sent by the operators. In addition to being convenient and fast, electronic tickets have the advantage of being environmentally friendly than paper tickets. Therefore, electronic tickets are bound to gradually replace paper tickets, and mobile terminals (such as mobile phones) will be the easiest and most widely used electronic tickets. Tickets. Traditional mobile terminal electronic tickets are mostly two-dimensional security codes. For users, such tickets are not aesthetically pleasing and are not easily identifiable.

Digital watermarking is an effective digital image anti-counterfeiting algorithm. A watermark is a pattern or mark that is embedded in a medium (such as an image) according to a certain algorithm to distinguish between authenticity and falsehood. Specifically, digital watermarking refers to the embedding of hidden marks in digitized multimedia data by means of signal processing. Such marks are usually invisible and can only be extracted by a dedicated detector or reader. The embedded watermark can be any form of data, such as a paragraph of text, logo, serial number, and the like. A good watermarking algorithm can guarantee the imperceptibility, robustness and certainty of the watermark. In recent years, artificial neural networks have been widely used in the implementation of various algorithms due to their fast processing speed and strong self-learning adaptive ability.

At present, the image embedded in the digital watermark is used as the electronic ticket for the mobile terminal, and the user cannot prove the legality of the electronic ticket by simply using the mobile terminal, for example: If the electronic ticket is inspected, It is necessary to have the support of the RF scanning device on site; if the user wants to withdraw the electronic ticket or transfer the electronic ticket, the mobile terminal needs to send the short message to the operator side device, and after the verification of the operator side device, the electronic ticket can be refunded or transferred. The process is very complicated. Summary of the invention

The technical problem to be solved by the present invention is to address the defects of the prior art, and to provide an electronic ticket processing method and apparatus for verifying the legitimacy of an electronic ticket by the mobile terminal alone.

In order to solve the above technical problem, the present invention provides an electronic ticket processing method, including: a mobile terminal reading a recorded first watermark identifier;

According to the preset watermark extraction algorithm, the mobile terminal processes the electronic ticket to obtain an original ticket image and a watermark image including the second watermark identifier;

The mobile terminal compares whether the first watermark identifier and the second watermark identifier are the same; if they are the same, it indicates that the electronic ticket is a legitimate ticket.

The first watermark identifier and the second watermark identifier are information that uniquely identifies the mobile terminal, and include: a mobile terminal number and/or a mobile terminal identifier.

After indicating that the electronic ticket is a valid ticket, the method further includes: the mobile terminal outputting an indication that the electronic ticket is valid, or the mobile terminal refunds or transfers the electronic ticket;

The method further includes: if it is compared that the first watermark identifier and the second watermark identifier are different, the mobile terminal outputs a prompt that the electronic ticket is invalid.

The mobile terminal performing the refund process on the electronic ticket includes: the mobile terminal sends a refunding short message to the operator side device; and the mobile terminal receives the returning short message returned by the operator side device;

The mobile terminal performing the transfer process of the electronic ticket includes: the mobile terminal receiving the third watermark identifier input by the user; according to the preset watermark embedding algorithm, the mobile terminal embedding the third watermark identifier in the original ticket image to obtain a new The electronic terminal sends the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier; the mobile terminal sends the notification message of the electronic ticket transfer to the operator side device. The electronic ticket includes a definition or a signal-to-noise ratio of the original ticket image; and according to the preset watermark extraction algorithm, the mobile terminal processes the electronic ticket to obtain an original ticket image and a watermark image including the second watermark identifier include:

Taking the difference between the definition or the signal-to-noise ratio of the electronic ticket and the clarity or signal-to-noise ratio of the original ticket image as a first energy function, using a variable-scale transient chaotic neural network search algorithm, the search target is the first An energy function is minimized to obtain an original ticket image;

The watermark image is obtained based on the electronic ticket and the original ticket image.

The embedding the third watermark identifier in the original ticket image by the mobile terminal according to the preset watermark embedding algorithm includes:

Performing L-layer wavelet decomposition on the original ticket image to obtain a plurality of matrices;

Calculate the minimum sensible difference (JD) value of each wavelet coefficient point in each matrix; use the negative value of the spatial frequency as the second energy function, and use the variable-scale transient chaotic neural network search algorithm to search for the second energy The function is minimal, and the optimal embedding strength of the third watermark identifier is obtained, and the optimal embedding strength is less than or equal to the JD value of the wavelet coefficient point.

The invention also provides an electronic ticket processing device, comprising:

a reading module, configured to read the first watermark identifier of the record;

An extraction module, configured to process the electronic ticket according to a preset watermark extraction algorithm, to obtain an original ticket image and a watermark image including the second watermark identifier;

And a comparison module, configured to compare whether the first watermark identifier and the second watermark identifier are the same; if they are the same, the electronic ticket is a legal ticket.

The comparison module is further configured to compare the first watermark identifier and the second watermark identifier to send a first trigger signal; compare the first watermark identifier with the second watermark identifier, and issue a second Trigger signal The device also includes:

a processing module, configured to: when the first trigger signal is received, output a prompt that the electronic ticket is valid, or perform a refund or transfer process on the electronic ticket;

And an output module, configured to output a prompt that the electronic ticket is invalid when the second trigger signal is received.

The processing module includes: a first sending unit, configured to send a refunding short message to the operator side device; and a first receiving unit, configured to receive a returning short message returned by the operator side device;

Or the processing module includes: an input unit, configured to receive a third watermark identifier input by the user; and an embedding unit, configured to embed the third watermark identifier in the original ticket image according to a preset watermark embedding algorithm, Obtaining a new electronic ticket; a second sending unit, configured to send the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier; and a third sending unit, configured to send the electronic ticket transfer notification to the operator side device SMS.

The electronic ticket includes a sharpness or a signal to noise ratio of the original ticket image; the extracting module includes:

The original ticket image obtaining unit is configured to use the difference between the sharpness or the signal-to-noise ratio of the electronic ticket and the sharpness or the signal-to-noise ratio of the original ticket image as a first energy function, and use a variable-scale transient chaotic neural network search An algorithm, the search target is the first energy function being the smallest, and the original ticket image is obtained;

And a watermark image obtaining unit, configured to obtain the watermark image according to the electronic ticket and the original ticket image.

The embedded unit includes:

a decomposition unit, configured to perform L-layer wavelet decomposition on the original ticket image to obtain a plurality of matrices;

a calculation unit, configured to separately calculate a JD value of each wavelet coefficient point in each matrix; a search unit, configured to use the variable-scale transient chaotic neural network to search for the third water The best embedding strength of the printed logo, the optimal embedding strength being less than or equal to the JD value of the wavelet coefficient point.

The electronic ticket processing method and apparatus provided by the present invention, the mobile terminal checks whether the electronic ticket is valid by comparing whether the first watermark identifier and the second watermark identifier are the same, and realizes that the validity of the electronic ticket can be proved only by the mobile terminal. DRAWINGS

1A is a schematic diagram of a first level main menu of a mobile phone operation interface according to the present invention;

1B is a schematic diagram of a secondary sub-menu of a mobile phone operation interface according to the present invention;

FIG. 2 is a schematic flowchart of Embodiment 1 of an electronic ticket processing method according to the present invention; FIG. 3 is a schematic flowchart of Embodiment 2 of an electronic ticket processing method provided by the present invention; FIG. Schematic diagram of the flow; Figure 5 is a schematic diagram of three-layer wavelet decomposition of the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of an electronic ticket processing apparatus provided by the present invention. detailed description

The core idea of the present invention is: adding a function module for managing electronic ticket ticketing in the mobile terminal, the function module enabling the mobile terminal to have the following functions: When the user selects the corresponding electronic ticket management menu, the mobile terminal reads the record therein. The first watermark identification; according to the preset watermark extraction algorithm, the mobile terminal processes the electronic ticket to obtain the original ticket image and the watermark image including the second watermark identifier; the mobile terminal compares whether the first watermark identifier and the second watermark identifier are the same If the same, it indicates that the electronic ticket is a legitimate ticket. Further, the mobile terminal may output a valid prompt for the electronic ticket, or the mobile terminal may refund or transfer the electronic ticket. The invention realizes that the legality of the electronic ticket can be proved only by the mobile terminal.

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

In the following specific embodiments of the present invention, a mobile phone is taken as a mobile terminal as an example for description. Of course, the present invention is not limited thereto, and the mobile terminal may also be a personal digital assistant, a notebook, or the like.

In the present invention, the mobile phone electronic ticket ordering relationship mainly includes: a manufacturer, an operator, and a mobile phone user (ie, a user who has a subscription requirement) having a ticket sales demand. The operator will issue electronic tickets with anti-counterfeiting information according to the requirements of the ticket sales vendors. The mobile phone terminal manufacturers can develop corresponding functional modules in the mobile phone software system, corresponding to the encrypted anti-counterfeiting electronic tickets issued by the operators, and effectively manage the mobile phones. Electronic tickets. An effective digital watermarking algorithm based on chaotic neural network is an effective management method for electronic gates between maintenance operators and mobile phone terminal manufacturers. Watermark embedding algorithm or watermark extraction algorithm is preset in both software systems for encrypting and anti-counterfeiting electronic tickets. For third parties whose algorithm is unknown, it is impossible to extract useful information from electronic tickets to prove the authenticity of electronic tickets. . According to the needs of the manufacturer, the operator adds unique anti-counterfeiting information, that is, watermark identification, according to the watermark embedding algorithm in the original ticket image provided by the manufacturer.

The electronic ticket of the present invention may be a determined binary image, and may also be a determined grayscale image or an RGB (Red Green Blue) image. Regardless of which of the above images, the watermark information that the user cannot perceive can be embedded in the electronic ticket, so that the user looks like an electronic ticket of the same pattern to the naked eye, and the graphic content can be information such as an introduction of an exhibition or an event, and has certain The visual effect not only affects the image effect of the electronic ticket, but also effectively plays the role of ticket anti-counterfeiting, and is more in line with the user's habit of using paper tickets in the past, and is more humanized.

In the present invention, the watermark identifier embedded in the original ticket image may be a mobile terminal number (such as a mobile phone number) and/or a mobile terminal identifier (such as an IMEI (International Mobile Equipment Identity) of the mobile phone). The IMEI is a unique identification number that distinguishes the mobile phone terminal. If the IMEI is used as the watermark identifier alone, there are some drawbacks. For example, after the user replaces the SIM card, anyone can use the mobile phone to use the electronic ticket. If the SIM card has a large storage capacity, the electronic ticket with the MMS as the carrier can be stored in the SIM card, and the IMEI and the mobile phone number are collectively used as the watermark identifier, and embedded in the electronic ticket to play the role of anti-counterfeiting. In In the following embodiments, the mobile phone number is taken as an example of the watermark identification, but the present invention is not limited thereto.

Referring to FIG. 1A and FIG. 1B, respectively, schematic diagrams of the first-level main menu and the second-level sub-menu of the mobile phone operation interface are shown. As shown in FIG. 1A, a ticket management function is added to the operation interface of the mobile phone, and the user can select ticket management to enter the secondary sub-menu. As shown in FIG. 1B, the second sub-menu of the mobile phone operation interface provides four functions of electronic ticket ordering, electronic ticket inspection, electronic ticket transfer and refund.

When the user selects an electronic ticket order, the electronic ticket ordering process can be entered. Users can choose to order one or more e-tickets for this unit, or they can choose to order one or more e-tickets for other mobile users. When ordering for the machine, the mobile phone sends the number of the ordered number and the code of the electronic ticket to be ordered to the operator-side device; the operator-side device adds the electronic ticket to the mobile phone number according to the watermark embedding algorithm in the original ticket image provided by the manufacturer. , send the corresponding number of electronic tickets to the mobile phone. When ordering tickets for other mobile phone users, the user needs to send the mobile phone number (also called the target mobile phone number) with the ticket ordering requirement, the number of sheets to be ordered, and the ticket code to the operator side device; the carrier side device is provided by the manufacturer. In the original ticket image, the electronic ticket is obtained by adding the target mobile phone number according to the watermark embedding algorithm, and the corresponding number of electronic tickets are sent to the mobile phone user who has the ticket ordering requirement, instead of being sent to the mobile phone user who initiates the ordering request.

When the user selects the electronic ticket inspection, the electronic ticket inspection process can be entered. Referring to FIG. 2, the first embodiment of the electronic ticket processing method provided by the present invention is an electronic ticket checking process, which includes the following steps:

Step 101: The mobile phone receives a confirmation check message input by the user to start an electronic ticket verification process.

If the user selects the electronic ticket check of the second-level sub-menu shown in FIG. 1B and enters the ticket browsing interface, after the user selects the electronic ticket to be inspected, the mobile phone receives the confirmation check message generated by the selection to start the electronic ticket inspection process.

Step 102: The mobile phone sends an instruction to read the SIM card (Subscriber Identity Module, The user identifies the module side information to obtain the recorded first mobile phone number, which is the user's mobile phone number.

Step 103: According to a preset watermark extraction algorithm, the mobile phone processes the electronic ticket to obtain an original ticket image and a watermark image including the second mobile phone number.

The watermark extraction algorithm is pre-configured in the mobile phone, and the watermark extraction algorithm corresponds to the watermark embedding algorithm of the operator side device, which is the inverse process. The mobile phone initiates the watermark extraction algorithm to obtain an original ticket image and a watermark image including the second mobile number.

Step 104: The mobile phone deletes the electronic ticket.

At this time, the mobile phone can delete the electronic ticket, and retain the original ticket image and the watermark image obtained after executing the watermark extraction algorithm. The embodiment of the present invention can follow the following rules: As long as the watermark extraction algorithm is started, the mobile phone will actively delete the electronic ticket to prevent the electronic ticket from being reused and maintain the legitimate rights and interests of the ticket seller. Except in the case where electronic tickets can be reused.

Step 105: The mobile phone compares whether the first mobile phone number and the second mobile phone number are the same. If yes, step 106 is performed; otherwise, step 109 is performed.

Step 106: The mobile phone outputs an effective prompt for the electronic ticket.

If the first mobile phone number and the second mobile phone number are the same, indicating that the electronic ticket is true, the mobile phone outputs a valid prompt for the electronic ticket, and the ticket inspecting party confirms that the electronic ticket is true according to the prompt.

Step 107: The mobile phone can delete the separated original ticket image and the watermark image. This step is an optional step.

Step 108: The mobile phone may send a short message to the operator side device to confirm that the electronic ticket has been used normally, and the process ends. This step is an optional step.

Step 109: The mobile phone outputs an indication that the electronic ticket is invalid, and the process ends.

The difference between the first mobile phone number and the second mobile phone number indicates that the electronic ticket is false, and the mobile phone outputs a prompt that the electronic ticket is invalid, and the ticket inspecting party confirms that the electronic ticket is false according to the prompt.

In this embodiment, the user can check the electronic ticket by the mobile phone only, specifically, the user Select the electronic ticket test in the second sub-menu, the mobile phone will output the prompt of valid or invalid electronic ticket, realize the electronic ticket inspection function with one button only, the inspection process is completed in the mobile phone instantaneously, and only the inspection process and inspection are required. The results are presented to the ticket inspector, eliminating the need to configure the RF scanning device on site.

When the user chooses to refund, they can enter the refund process. Referring to FIG. 3, the second embodiment of the electronic ticket processing method is provided by the present invention. The embodiment is specifically a refund process, and includes the following steps:

Step 201: The mobile phone receives a confirmation refund message input by the user to start the electronic ticket refund process.

If the user selects the refund of the second-level sub-menu shown in FIG. 1B and enters the ticket browsing interface, and the user selects the electronic ticket that needs to be refunded, the mobile phone receives the confirmation refund message generated by the selection to start the electronic ticket refund process.

Step 202: The mobile phone sends an instruction to read the SIM card side information to obtain the recorded first mobile phone number, where the first mobile phone number is the mobile phone number of the user.

Step 203: According to a preset watermark extraction algorithm, the mobile phone processes the electronic ticket to obtain an original ticket image and a watermark image including the second mobile phone number.

Step 204: The mobile phone deletes the electronic ticket.

At this time, the mobile phone can delete the electronic ticket, and retain the original ticket image and the watermark image obtained after executing the watermark extraction algorithm. The embodiment of the present invention can follow the following rules: As long as the watermark extraction algorithm is started, the mobile phone will actively delete the electronic ticket to prevent the electronic ticket from being reused and maintain the legitimate rights and interests of the ticket seller.

Step 205: The mobile phone compares whether the first mobile phone number and the second mobile phone number are the same. Then step 206 is performed; otherwise, step 209 is performed.

Step 206: The mobile phone confirms the refund, and sends a refund message to the operator side device.

If the first mobile phone number and the second mobile phone number are the same, indicating that the electronic ticket is true, it is confirmed that the mobile phone has the right to refund the ticket, and the mobile phone sends a refunding short message to the operator-side device, and notifies the operator of the refund.

Step 207: The mobile phone may delete the separated original ticket image and the watermark image. This step is an optional step.

Step 208: The mobile phone receives the receipt message returned by the operator side device, and the process ends.

Step 209: The mobile phone outputs an indication that the electronic ticket is invalid, and the process ends.

In this embodiment, the user can confirm that the user has the right to refund the electronic ticket by using the mobile phone. Specifically, the user selects the refund in the second sub-menu. After the mobile phone is verified, if the electronic ticket is true, the user can directly refund the ticket. Processing; If the electronic ticket is false, the prompt for invalid electronic ticket is directly output. The refund of the electronic ticket starts the inspection function. Only after the verification is passed, the electronic ticket can be refunded, and the service is more detailed and comprehensive.

When the user selects the electronic ticket transfer, the electronic ticket transfer process can be entered. Referring to FIG. 4, it is a third embodiment of the electronic ticket processing method provided by the present invention. The embodiment is specifically an electronic ticket transfer process, and includes the following steps:

Step 301: The mobile phone receives a confirmation transfer message input by the user to start the electronic ticket transfer process.

If the user selects the electronic ticket transfer of the second-level sub-menu shown in FIG. 1B and enters the ticket browsing interface, after the user selects the electronic ticket to be transferred, the mobile phone receives the confirmation transfer message generated by the selection to start the electronic ticket transfer process.

Step 302: The mobile phone sends an instruction to read the SIM card side information to obtain the recorded first mobile phone number, where the first mobile phone number is the mobile phone number of the user.

Step 303: According to a preset watermark extraction algorithm, the mobile phone processes the electronic ticket, and obtains The original ticket image and the watermark image including the second mobile phone number.

Step 304: The mobile phone deletes the electronic ticket.

Step 305: The mobile phone compares whether the first mobile phone number and the second mobile phone number are the same. If they are the same, go to step 306; otherwise, go to step 311.

Step 306: The mobile phone receives a third mobile phone number input by the user.

If the first mobile phone number and the second mobile phone number are the same, indicating that the electronic ticket is true, it is confirmed that the mobile phone has the right to transfer the electronic ticket. The user inputs the mobile phone number of the user to be transferred, that is, the third mobile phone number.

Step 307: According to the preset watermark embedding algorithm, the mobile phone embeds the third mobile phone number in the original ticket image to obtain a new electronic ticket.

A watermark embedding algorithm is pre-configured in the mobile phone, and the watermark embedding algorithm is the same as the watermark embedding algorithm of the operator side device. The mobile phone initiates the watermark embedding algorithm, embedding the third mobile phone number in the original ticket image to obtain a new electronic ticket.

Step 308: The mobile phone may delete the watermark image including the second mobile phone number. This step is an optional step.

Step 309: The mobile phone sends the new electronic ticket to the target mobile phone corresponding to the third mobile phone number. The target mobile phone is the mobile phone of the user to be transferred.

Step 310: The mobile phone sends a notification message of the electronic ticket transfer to the operator side device, and the transfer will be transferred. The situation is notified to the operator and the process ends.

Step 311: The mobile phone outputs an prompt that the electronic ticket is invalid, and the process ends.

In this embodiment, the user can confirm that the user has the right to transfer the electronic ticket by using the mobile phone. Specifically, the user selects the electronic ticket transfer in the second-level sub-menu. After the mobile phone is verified, if the electronic ticket is true, the user can directly Do the transfer processing; if the electronic ticket is false, directly output the prompt that the electronic ticket is invalid. The transfer of electronic tickets starts the inspection function, and only after the verification is passed, the electronic ticket can be transferred, and the service is more detailed and comprehensive.

The invention also provides an intelligent digital watermark embedding algorithm based on chaotic neural network, which can be applied to the above various embodiments, and the specific description is as follows:

First, in order to determine the embedding position of the watermark, the original ticket image is subjected to L-layer wavelet decomposition. The image is a two-dimensional signal. The basic idea of wavelet transform for image analysis is to decompose the image into multiple resolutions and decompose the image into sub-images of different spatial and different frequencies. The image is divided into four frequency bands after wavelet transform: horizontal, vertical, diagonal and low frequency, and the low frequency part can continue to decompose. The low frequency portion may be referred to as a luminance image, and the horizontal, vertical, and diagonal portions may be referred to as detailed images. For an image, the wavelet transform constitutes a multi-scale time-frequency decomposition of it.

Taking three-layer wavelet decomposition as an example, as shown in Fig. 5, it is a three-layer wavelet decomposition diagram. The components of the third layer are LL3, LH3, HL3 and HH3, and each component forms a matrix. At the same level resolution, the HL3 block is the detail information retained by the high-pass and vertical low-pass filtering in the horizontal direction. The LH3 block is the horizontal low-pass and vertical high-pass filtering, and the HH2 block is horizontal and vertical. After high-pass filtering, LL3 is the low-pass filtered detail information in both horizontal and vertical directions.

Secondly, for a plurality of matrices obtained by L-layer wavelet decomposition, the JD (Just Noticeable Difference) values of each wavelet coefficient point in each matrix are respectively calculated. A point with a large JD value allows for more embedded watermark information, and the corresponding robustness of the watermarked image is better. For the watermark image to be embedded, the point where the wavelet coefficient values are arranged in the order of large to small is embedded in the point where the JD value of the host image is large, so that sufficient watermark information can be embedded in the host image.

After the L-layer wavelet decomposition of the original ticket image, the frequency masking factor of the HVS (Human Vision System) image is:

Where /re e«<y(/, represents the frequency sensitivity of the direction s on the /th frequency band, {LL, HL, LH, HH}.

Let (x, be the wavelet coefficient value, where / denotes the wavelet transform layer number, /e {0,1,2...}, show the direction of the wavelet coefficient transform, and (x,_y) denote the position of the wavelet s coefficient. Ω(χ, >) represents the point (χ, and the neighborhood of the point. After defining the neighborhood, the following formula is used to estimate the brightness masking factor, specifically:

Where is the number of wavelet coefficients in Ω(χ, >). The addition of 1.5 to the brightness is to prevent the value of the point from going to zero because the brightness is too small.

As part of the texture masking factor in the HVS model, the variance factor for the low frequency coefficients is defined as:

Through the wavelet transform, the texture information and edge information of the image are stored in the high frequency coefficients (LH, HL, ΗΗ). The larger the energy factor of the wavelet coefficient point, the more texture information and edge information is included in the coefficient point, and the texture of the point is considered to be complex or has edges. The energy factor of the high frequency coefficient defined by the present invention is:

Energy = ∑

+ 2 ^l ~ ^k (y - 1 combined with the above analysis, the JD estimate for each wavelet coefficient is: Where, for the intensity adjustment factor, ", β, ^ are the weights of the brightness masking factor, the variance factor, and the energy factor, respectively, «e [0.5,0.7] , ^ e [0.06,0.08] , ye [0 ·08,0·1].

In fact, the J D value calculated by the formula is the limit value of the embedded watermark intensity, which is the maximum embedding strength (MAX ) that the human eye cannot clearly observe the existence of the watermark. Of course, from the perspective of robustness, the greater the intensity of the embedded watermark, the better, but in order to achieve good transparency, the high watermark intensity cannot be pursued blindly. Therefore, the present invention designs the chaotic neural network in the interval [0, MAX]. Look for the best insertion strength to maintain good transparency.

The watermark embedding strength is determined by a variable-scale transient chaotic neural network capable of intelligently adjusting its value. The combination of chaotic neural network and watermark embedding strength lies in the determination of the energy function of chaotic neural network. In order to achieve a good visual effect, the present invention sets the second energy function of the chaotic neural network to a negative value of the spatial frequency within the region of the watermarked image. The spatial frequency is defined as follows:

SF = ^RF ² + CF

Where RF is the line frequency and CF is the column frequency.

Where M*N is the size of the region, and ^·, ·) is the wavelet coefficient value of the ( , _/·) point.

Chaotic neural network searches for self-suppression on a certain fractal structure in a chaotic manner in phase space. The search target has the second energy function minimum, that is, the search minimizes the second energy function of the chaotic neural network. The point is output, which in turn gives the best embedding strength for that point. The second energy function is the smallest, the negative of the spatial frequency is the smallest, and the spatial frequency is maximized. Spatial frequency is a common indicator for objectively evaluating image quality. The larger the spatial frequency, the better the quality of the image, and the better the visual effect of the human eye. The watermark extraction algorithm is the inverse of the watermark embedding algorithm. First, when the watermark embedding algorithm is executed on the operator side, the operator side device calculates the sharpness or signal to noise ratio of the original ticket image, and the original ticket image is an image without any information, so the resolution or the signal to noise ratio is the largest. of. The resolution or signal-to-noise ratio of the original ticket image is written into the electronic ticket, for example, the resolution or the signal-to-noise ratio is sent to the user as the pixel value of the bottom right corner of the electronic ticket. A change in the pixel value at the bottom right corner does not affect the visual effect of the image. Because operators and handset manufacturers are a cooperative relationship, handset manufacturers know this convention. After the mobile phone obtains the electronic ticket, the watermark extraction algorithm executed includes: using the difference between the clarity or the signal-to-noise ratio of the electronic ticket and the clarity or signal-to-noise ratio of the original ticket image as the first energy function, using the variable-scale transient The chaotic neural network search algorithm searches for the first energy function to obtain the original ticket image. According to the electronic ticket and the original ticket image, the watermark image is obtained. The watermark extraction algorithm belongs to a semi-blind watermark extraction algorithm. Watermark extraction algorithm.

Referring to FIG. 6, an embodiment of an electronic ticket processing apparatus provided by the present invention may be a function module of a mobile terminal or a mobile terminal, and specifically includes: a reading module 11, an extracting module 12, and a comparison module. 13.

The reading module 11 is configured to read the recorded first watermark identifier; the extracting module 12 is configured to process the electronic ticket according to a preset watermark extraction algorithm, to obtain an original ticket image and a watermark image including the second watermark identifier; The comparison module 13 is configured to compare whether the first watermark identifier and the second watermark identifier are the same. If they are the same, the electronic ticket is a legal ticket.

In this embodiment, the first watermark identifier and the second watermark identifier are a mobile terminal number and/or a mobile terminal identifier.

Further, the comparison module 13 is further configured to compare that the first watermark identifier and the second watermark identifier are the same, and issue a first trigger signal; comparing the first watermark identifier and the second watermark identifier, A second trigger signal is issued. The device may further include: a processing module 14 configured to: when receiving the first trigger signal, output a prompt that the electronic ticket is valid, or perform a refund or transfer process on the electronic ticket; and the output module 16 is configured to receive the second trigger Signal, output prompt for invalid electronic tickets.

Further, the embodiment may further include: a deleting module 15 for deleting the electronic ticket. The device provided in this embodiment can implement the function of electronic ticket inspection. Specifically, the comparison module 13 compares whether the first watermark identifier and the second watermark identifier are the same. If they are the same, the first trigger signal is sent. If different, the second trigger signal is sent. After receiving the first trigger signal, the processing module 14 outputs The electronic ticket is valid prompt; after receiving the second trigger signal, the output module 16 outputs a prompt that the electronic ticket is invalid. Thereby the function of electronic ticket inspection is realized.

The device provided in this embodiment can also implement the refund function. At this time, the processing module 14 may include: a first sending unit 17 and a first receiving unit 18, where the first sending unit 17 is configured to send a refunding short message to the operator side device; the first receiving unit 18 is configured to receive the operator side. A receipt message returned by the device. Specifically, the comparison module 13 compares whether the first watermark identifier and the second watermark identifier are the same. If they are the same, the first trigger signal is sent, and if not, the second trigger signal is sent; after the first sending unit 17 receives the first trigger signal, And sending the refunding short message to the operator side device. After waiting for a period of time, the first receiving unit 18 receives the returning short message returned by the operator side device; after receiving the second triggering signal, the output module 16 outputs the prompt that the electronic ticket is invalid. Thereby, the electronic ticket refund function is realized.

The device provided in this embodiment can also implement an electronic ticket transfer function. At this time, the processing module 14 may include: an input unit, an embedding unit, a second sending unit, and a third sending unit, where the input unit is configured to receive a third watermark identifier input by the user; the embedding unit is configured to embed according to the preset watermark The algorithm, the third watermark identifier is embedded in the original ticket image to obtain a new electronic ticket; the second sending unit is configured to send the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier; and the third sending unit is configured to the operator side The device sends a notification SMS for the transfer of electronic tickets. specifically The comparison module compares whether the first watermark identifier and the second watermark identifier are the same. If the same, the first trigger signal is sent, if not, the second trigger signal is sent; the input unit receives the third watermark identifier input by the user; the embedded unit is receiving After the first trigger signal, according to the preset watermark embedding algorithm, the third watermark identifier is embedded in the original ticket image to obtain a new electronic ticket; the second sending unit sends the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier. The third sending unit sends the notification message of the electronic ticket transfer to the operator side device; after receiving the second trigger signal, the output module outputs a prompt that the electronic ticket is invalid. Thereby the function of electronic ticket transfer is realized.

Further, the electronic ticket includes the clarity or the signal-to-noise ratio of the original ticket image, and the extracting module 12 may include:

The original ticket image obtaining unit is configured to use the difference between the clarity or the signal-to-noise ratio of the electronic ticket and the clarity or the signal-to-noise ratio of the original ticket image as the first energy function, and use the variable-scale transient chaotic neural network search algorithm. The search target is the first energy function is the smallest, and the original ticket image is obtained; the watermark image obtaining unit is configured to obtain the watermark image according to the electronic ticket and the original ticket image.

The above embedded unit may include:

a decomposing unit, configured to perform L-layer wavelet decomposition on the original ticket image to obtain a plurality of matrices; a calculating unit, configured to respectively calculate a JD value of each wavelet coefficient point in each matrix; and a searching unit, configured to use the variable-scale transient The chaotic neural network searches for the best embedding strength of the third watermark identifier, and the optimal embedding strength is less than or equal to the JD value of the wavelet coefficient point.

In summary, the electronic ticket processing method and apparatus provided by the present invention enable the user to check the electronic ticket by the mobile terminal alone, or the user can confirm that the user has refunded or transferred the electronic ticket by simply using the mobile terminal. Permissions; if the ordering, inspection, refund and transfer functions are integrated, the mobile terminal has a complete set of ticket management functions.

Finally, it should be noted that the above list is only specific embodiments of the present invention, and those skilled in the art can change and modify the present invention, provided that these modifications and variations are Within the scope of the claims of the present invention and its equivalents, it should be considered as the scope of the present invention.

Claims

Claim

1. An electronic ticket processing method, characterized in that:

The mobile terminal reads the recorded first watermark identifier;

The method according to claim 1, wherein the first watermark identifier and the second watermark identifier are information that uniquely identifies the mobile terminal, and includes: a mobile terminal number and/or a mobile terminal identifier;

The method according to claim 2, wherein the mobile terminal performs a refund process on the electronic ticket: the mobile terminal sends a refund message to the operator side device; and the mobile terminal receives the return message returned by the operator side device.

The method according to claim 2, wherein the transferring processing of the electronic ticket by the mobile terminal comprises: receiving, by the mobile terminal, a third watermark identifier input by the user; according to the preset watermark embedding algorithm, the mobile terminal is in the Embedding the third watermark identifier in the original ticket image to obtain a new electronic ticket; the mobile terminal transmitting the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier; the mobile terminal sending the electronic ticket to the operator side device Transfer notification SMS.

The method according to claim 1, 2, 3 or 4, wherein the electronic ticket includes a sharpness or a signal to noise ratio of the original ticket image; the extracting according to a preset watermark The algorithm, the mobile terminal processes the electronic ticket, and obtains the original ticket image and the watermark image including the second watermark identifier, including:

The method according to claim 4, wherein the embedding the third watermark identifier in the original ticket image by the mobile terminal according to the preset watermark embedding algorithm comprises: performing the original ticket image L-layer wavelet decomposition, resulting in multiple matrices;

7. An electronic ticket processing device, comprising:

The device according to claim 7, wherein the first watermark identifier and the second watermark identifier are information that uniquely identifies the mobile terminal, and includes: a mobile terminal number and/or a mobile terminal identifier;

The device according to claim 8, wherein the processing module comprises: a first sending unit, configured to send a refunding short message to the operator side device;

The first receiving unit is configured to receive a return receipt message returned by the operator side device.

The device according to claim 8, wherein the processing module comprises: an input unit, configured to receive a third watermark identifier input by a user;

An embedding unit, configured to embed the third watermark identifier in the original ticket image according to a preset watermark embedding algorithm to obtain a new e-ticket;

a second sending unit, configured to send the new electronic ticket to the target mobile terminal corresponding to the third watermark identifier;

The third sending unit is configured to send a notification short message of the electronic ticket transfer to the operator side device.

The apparatus according to claim 7, 8, 9 or 10, wherein the electronic ticket includes a sharpness or a signal to noise ratio of the original ticket image; the extracting module comprises: an original ticket image acquisition a unit, configured to use a difference between a sharpness or a signal-to-noise ratio of the electronic ticket and a sharpness or a signal-to-noise ratio of the original ticket image as a first energy function, using a variable-scale transient chaotic neural network search algorithm, searching for a target Obtaining the original ticket image for the first energy function to be minimum;

The apparatus according to claim 10, wherein the embedding unit comprises: a decomposing unit, configured to perform L-layer wavelet decomposition on the original ticket image to obtain a plurality of moments Array

a calculation unit, configured to separately calculate a JD value of each wavelet coefficient point in each matrix; a search unit, configured to use a variable-scale transient chaotic neural network, to search for an optimal embedding strength of the third watermark identifier, The best embedding strength is less than or equal to the JD value of the wavelet coefficient point.