CN112329757A - Method, device and system for desensitizing acquisition of bill information - Google Patents
Method, device and system for desensitizing acquisition of bill information Download PDFInfo
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- 238000000586 desensitisation Methods 0.000 claims abstract description 53
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- 238000012015 optical character recognition Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 2
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- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
- G06F21/6254—Protecting personal data, e.g. for financial or medical purposes by anonymising data, e.g. decorrelating personal data from the owner's identification
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
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Abstract
The invention discloses a method, a device and a system for desensitizing acquisition of bill information. The method comprises the following steps: identifying all bill characteristics in the bill picture, and positioning a characteristic area containing preset sensitive information; sensitive information in the characteristic region is extracted and stored to a local terminal of an authorized client, and meanwhile, an image of the characteristic region in the bill picture is removed to complete desensitization processing; associating the desensitization-processed bill picture with the sensitive information, and uploading the desensitization-processed bill picture to a crowdsourcing platform for bill information identification; and combining the structured bill information returned after the crowdsourcing platform is identified with the sensitive information stored in the local terminal of the authorized client to form complete bill information of the bill. The method realizes the desensitization treatment of the bills at the client, and ensures that sensitive information is not revealed in the process of identifying the bill information by outgoing.
Description
Technical Field
The invention relates to the field of bill information processing, in particular to a method, a device and a system for desensitizing acquisition of bill information.
Background
OCR (Optical Character Recognition) is an important research direction in the field of pattern Recognition. In recent years, with the rapid update and iteration of mobile devices and the rapid development of mobile internet, OCR has a wider application scene, from the character recognition of the original scanned files to the recognition of picture characters in natural scenes, such as the characters in identification cards, bank cards, house numbers, bills and various network pictures.
Large enterprises, institutions, hospital physical examination, finance, insurance industries and the like have massive bills which need to be subjected to information acquisition, input and electronic archiving. At present, sensitive information on a bill is required to be ensured not to be revealed in the process of digitizing the bill so as to ensure the security of private data of a user.
Therefore, it is necessary to develop a method for desensitizing acquisition of bill information to perform desensitization processing of bills at a client, so as to ensure that sensitive information is not leaked in the process of identifying bill information by outgoing.
Disclosure of Invention
The invention aims to provide a method, a device and a system for desensitizing acquisition of bill information, which are used for performing desensitization processing on bills at a client and ensuring that sensitive information is not leaked in the process of identifying the bill information by outgoing.
In a first aspect, the invention provides a method for desensitizing acquisition of bill information, which comprises the following steps:
identifying all bill characteristics in the bill picture, and positioning a characteristic area containing preset sensitive information;
sensitive information in the characteristic region is extracted and stored in a local terminal of an authorized client, and meanwhile, an image of the characteristic region in the bill picture is removed to complete desensitization processing;
associating the bill picture subjected to desensitization with the sensitive information, and uploading the bill picture subjected to desensitization to a crowdsourcing platform for bill information identification;
and combining the structured bill information returned after the crowdsourcing platform is identified with the sensitive information stored in the local terminal of the authorized client to form complete bill information of the bill.
Optionally, identifying all ticket features in the ticket picture, and locating the feature region containing preset sensitive information includes:
and identifying all bill features in the bill picture through an OCR (optical character recognition) algorithm and a semantic recognition algorithm, and framing the feature region comprising the sensitive information.
Optionally, the removing the image of the feature region in the bill picture includes:
and carrying out cutting or coding treatment on the image of the selected characteristic region, or brushing the gray value of the pixel of the image of the selected characteristic region into 0.
Optionally, the extracting and storing the sensitive information to the local terminal of the authorized client includes:
and binding the sensitive information with a first serial number, encrypting and storing the sensitive information to a local terminal of the authorized client, and sending an encryption key of the sensitive information to the authorized client.
Optionally, the associating the note picture subjected to desensitization processing with the sensitive information includes:
and binding a second serial number to the bill picture subjected to desensitization processing, encrypting and transmitting the bill picture to the crowdsourcing platform, and associating the second serial number with the first serial number.
Optionally, combining the structured ticket information returned by the crowdsourcing platform with the sensitive information stored at the authorized customer local terminal comprises:
and combining the decrypted structured bill information and the sensitive information based on the first serial number and the second serial number to form complete bill information of the bill.
Optionally, the sensitive information includes: name, identification number, social security number, bank account number and contact information.
Optionally, after uploading the desensitization-processed ticket picture to a crowdsourcing platform, the crowdsourcing platform performing ticket information identification includes:
identifying the ticket face characteristics of the uploaded ticket pictures, and matching corresponding identification area positioning templates from a preset template library based on the ticket face characteristics;
cutting the bill picture based on the identification area positioning template to obtain a plurality of image slices corresponding to bill fields in a plurality of different areas in the bill picture;
identifying fields in each image slice through an OCR automatic identification algorithm, and screening out image slices with overlapped bill fields and fuzzy image slices which cannot be accurately identified by the OCR automatic identification algorithm;
filtering the image slices with the overlapped bill fields and extracting corresponding field information;
establishing a corresponding manual identification order dispatching task for the fuzzy image slices, and simultaneously distributing the manual identification order dispatching task to a plurality of crowdsourcing personnel;
and receiving manual identification field information returned by manual identification, performing structured data processing on the manual identification field information and the field information identified by the OCR automatic identification algorithm, and outputting the structured bill information.
In a second aspect, the invention further provides a device for desensitizing acquisition of bill information, which comprises:
the scanning unit is used for scanning the bills and generating bill pictures of the bills;
the first communication module is used for being in communication connection with a local terminal of the authorized client;
the second communication module is used for being in communication connection with the crowdsourcing platform;
and the processing unit is used for executing the bill information desensitization acquisition method in the first aspect.
In a third aspect, the present invention further provides a system for desensitizing acquisition of ticket information, including: at least one bill information desensitization acquisition device, the local terminal of the authorized client and a crowdsourcing platform;
the local terminal of the authorized client and the crowdsourcing platform are respectively in communication connection with the bill information desensitization acquisition device;
the bill information desensitization acquisition device is arranged at a client;
the bill information desensitization acquisition device is the bill information desensitization acquisition device of claim 9.
The invention has the beneficial effects that:
the invention comprises the following steps: firstly, identifying all bill information in a bill picture, positioning the area where the sensitive information is located, extracting the sensitive information, storing the sensitive information to a local terminal of an authorized client, removing the image of a characteristic area in the bill picture, then associating the bill picture which is subjected to desensitization with the sensitive information, transmitting the bill picture which is subjected to desensitization to a crowdsourcing platform for bill information identification, and finally combining the structured bill information returned by the crowdsourcing platform with the sensitive information stored at the local terminal of the authorized client to form complete bill information of the bill, so that desensitization of the sensitive information of the bill can be realized before the bill is sent to the crowdsourcing platform for identification, the extracted sensitive information is stored at the local terminal of the authorized client, the bill image which is sent to the crowdsourcing platform is ensured to have no sensitive information, and the sensitive information of the bill in the whole datamation process of the bill is effectively ensured not to be leaked, the safety is improved.
Furthermore, the sensitive information is encrypted and stored locally, the encryption key of the sensitive information is sent to an authorized client for storage, and encryption processing is carried out in the process that the bill picture is sent to the crowdsourcing platform and the crowdsourcing platform to return the identified structured bill information, so that the safety of each link in the bill datamation process is effectively improved.
The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
FIG. 1 illustrates a step diagram of a method for desensitizing the collection of billing information according to the present invention.
Fig. 2 is a step diagram illustrating the process of identifying the bill information by the crowdsourcing platform in the desensitization acquisition method of the bill information according to the invention.
Fig. 3 shows a schematic diagram of a ticket information desensitization collection apparatus according to one embodiment of the invention.
FIG. 4 shows a schematic diagram of a ticket information desensitization collection system according to one embodiment of the invention.
Description of reference numerals:
the method comprises the steps of 1-a bill information desensitization acquisition device, 2-a scanning unit, 3-a first communication module, 4-a second communication module, 5-a processing unit, 6-a local terminal of an authorized client and 7-a crowdsourcing platform.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
FIG. 1 illustrates a step diagram of a method for desensitizing the collection of billing information according to the present invention.
As shown in fig. 1, a method for desensitizing acquisition of ticket information comprises:
s101, identifying all bill characteristics in a bill picture, and positioning a characteristic area containing preset sensitive information;
in a specific application scenario, all bill features in a bill picture are identified through the existing OCR and semantic recognition algorithms, and a feature area comprising sensitive information is selected in a frame mode. Wherein the sensitive information includes: name, identification card number, social security number, bank account number, contact information and the like.
S102, extracting sensitive information in the characteristic region, storing the sensitive information in the local terminal of an authorized client, and removing the image of the characteristic region in the bill picture to complete desensitization processing;
in the specific application scenario, the sensitive information is bound with the first serial number, encrypted and stored in the local terminal of the authorized client, and meanwhile, the encryption key of the sensitive information is sent to the authorized client.
The image of the characteristic region in the bill picture is removed by cutting or coding the image of the framed characteristic region, or brushing the gray value of the pixel of the image of the framed characteristic region to 0, so as to ensure that the sensitive information on the bill picture is completely removed. Wherein, the authorized client means: banks, insurance companies, hospitals and the like have business personnel with related business operation authority. The encryption key is calculated by adopting a dynamic encryption algorithm.
S103, associating the desensitization-finished bill picture with sensitive information, and uploading the desensitization-finished bill picture to a crowdsourcing platform for bill information identification;
in the specific application scenario, the second serial number is bound to the bill picture subjected to desensitization processing and encrypted to be transmitted to the crowdsourcing platform, and meanwhile the second serial number is associated with the first serial number.
Referring to fig. 2, the process of identifying the ticket information by the crowdsourcing platform includes:
s201, identifying the ticket face characteristics of the uploaded ticket pictures, and matching corresponding identification area positioning templates from a preset template library based on the ticket face characteristics;
s202, cutting the bill picture based on the identification area positioning template to obtain a plurality of image slices corresponding to a plurality of bill fields in different areas in the bill picture;
s203, identifying fields in each image slice through the conventional OCR automatic identification algorithm, and screening out image slices with overlapped bill fields and blurred image slices which cannot be accurately identified by the OCR automatic identification algorithm;
s204, filtering the image slices with the overlapped bill fields and extracting corresponding field information;
s205, establishing a corresponding manual identification order dispatching task for the blurred image slices, and simultaneously distributing the manual identification order dispatching task to a plurality of crowdsourcing personnel;
and S206, receiving the manual identification field information returned by manual identification, performing structured data processing on the manual identification field information and the field information identified by the OCR automatic identification algorithm, outputting structured bill information and returning.
Specifically, by establishing different recognition area positioning templates of bills and forming a template library, slicing processing can be performed on a bill picture through the recognition area positioning templates, recognition can be performed on a sliced image, the automatic recognition efficiency of OCR is improved, and filtering recognition is performed on pictures of overlapped parts so as to improve the accuracy of OCR automatic recognition; the method has the advantages that manual identification in a crowdsourcing mode is carried out on fuzzy fields, complex tasks with short timeliness and large workload are decomposed into a plurality of simple operations with small workload through specialized division of labor, social human resources are utilized to the maximum extent and the maximum extent through the crowdsourcing mode of manual auxiliary identification, efficient and quality-guaranteed manual auxiliary bill identification is further achieved, manual identification precision and efficiency are improved, overall accuracy and identification efficiency of bill identification are further improved, and accordingly omnibearing identification precision and efficiency of bill pictures are improved.
And S104, combining the structured bill information returned after the crowdsourcing platform is identified with the sensitive information stored in the local terminal of the authorized client to form complete bill information of the bill.
In the above specific application scenario, the decrypted structured ticket information and the decrypted sensitive information are combined based on the first serial number and the second serial number to form complete ticket information of the ticket. Sensitive information is encrypted and stored locally, an encryption key of the sensitive information is sent to an authorized client for storage, and encryption processing is carried out in the process that a bill picture is sent to a crowdsourcing platform and a crowdsourcing platform to return identified structured bill information, so that the safety of each link in the bill datamation process is effectively improved.
Example 2
Fig. 3 shows a schematic diagram of a ticket information desensitization collection apparatus according to one embodiment of the invention.
As shown in fig. 3, a bill information desensitization collecting apparatus 1 includes:
the scanning unit 2 is used for scanning the bills and generating bill pictures of the bills;
the first communication module 3 is used for being in communication connection with a local terminal of an authorized client;
the second communication module 4 is used for being in communication connection with the crowdsourcing platform;
and the processing unit 5 is used for executing the bill information desensitization acquisition method of the embodiment 1.
In the specific implementation process, the scanning unit 2 can be realized by an integrated document scanner or a photographing device, the first communication module 3 can be realized by an integrated LAN interface, the second communication module 4 can be realized by an integrated WAN interface, data transmission with local terminal equipment of an authorized client is realized by the LAN interface, and internet communication with a crowdsourcing platform is realized by the WAN interface. The processing unit 5 can select a processor chip such as a CPU, a GPU and the like and integrate a memory and related control program software implementation. The bill information desensitization acquisition device 1 can realize automatic desensitization of bill pictures for information identification sent by clients.
Example 3
FIG. 4 shows a schematic diagram of a ticket information desensitization collection system according to one embodiment of the invention.
As shown in fig. 4, a ticket information desensitization collection system includes: at least one bill information desensitization acquisition device 1, a local terminal 6 of an authorized client and a crowdsourcing platform 7;
the local terminal 6 and the crowdsourcing platform 7 of the authorized client are respectively in communication connection with the bill information desensitization acquisition device 1;
the bill information desensitization acquisition device 1 is arranged at a client;
the bill information desensitization acquisition device 1 is the bill information desensitization acquisition device of embodiment 2.
Specifically, set up bill information desensitization collection system 1 in customer's place, carry out the bill scanning in customer's department, desensitization is handled and is sent out to crowdsourcing platform 7 again, can realize sending out the sensitive information of bill to crowdsourcing platform before discerning and carry out desensitization to the sensitive information of bill, and keep the sensitive information of extracting at authorized customer's local terminal 6, guarantee that the bill image of sending out to crowdsourcing platform 7 has not had sensitive information, effectively guaranteed that the sensitive information of the whole datumization process bill of bill can not reveal, improve the security.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A method for desensitizing the collection of billing information, comprising:
identifying all bill characteristics in the bill picture, and positioning a characteristic area containing preset sensitive information;
sensitive information in the characteristic region is extracted and stored in a local terminal of an authorized client, and meanwhile, an image of the characteristic region in the bill picture is removed to complete desensitization processing;
associating the bill picture subjected to desensitization with the sensitive information, and uploading the bill picture subjected to desensitization to a crowdsourcing platform for bill information identification;
and combining the structured bill information returned after the crowdsourcing platform is identified with the sensitive information stored in the local terminal of the authorized client to form complete bill information of the bill.
2. The method of desensitizing collection of ticket information according to claim 1, wherein identifying all ticket features in the ticket image and locating feature regions containing preset sensitive information comprises:
and identifying all bill features in the bill picture through an OCR (optical character recognition) algorithm and a semantic recognition algorithm, and framing the feature region comprising the sensitive information.
3. The method of desensitizing collection of billing information according to claim 2 wherein said removing images of said feature areas in said billing image comprises:
and carrying out cutting or coding treatment on the image of the selected characteristic region, or brushing the gray value of the pixel of the image of the selected characteristic region into 0.
4. The method of desensitizing collection of billing information according to claim 1 wherein extracting and storing said sensitive information to authorized customer local terminals comprises:
and binding the sensitive information with a first serial number, encrypting and storing the sensitive information to a local terminal of the authorized client, and sending an encryption key of the sensitive information to the authorized client.
5. The desensitization acquisition method of ticket information of claim 4, wherein said associating said ticket pictures that have been desensitized with said sensitive information comprises:
and binding a second serial number to the bill picture subjected to desensitization processing, encrypting and transmitting the bill picture to the crowdsourcing platform, and associating the second serial number with the first serial number.
6. The method of desensitizing collection of ticket information according to claim 5, wherein combining structured ticket information returned by the crowdsourcing platform with the sensitive information stored at the authorizing customer local terminal comprises:
and combining the decrypted structured bill information and the sensitive information based on the first serial number and the second serial number to form complete bill information of the bill.
7. The method for desensitizing collection of billing information according to any of claims 1 through 6 wherein said sensitive information includes: name, identification number, social security number, bank account number and contact information.
8. The method for desensitizing acquisition of ticket information according to claim 1, wherein after uploading the desensitized ticket pictures to a crowdsourcing platform, the crowdsourcing platform performing ticket information identification comprises:
identifying the ticket surface characteristics of the uploaded ticket pictures subjected to desensitization processing, and matching corresponding identification area positioning templates from a preset template library based on the ticket surface characteristics;
cutting the bill picture based on the identification area positioning template to obtain a plurality of image slices corresponding to bill fields in a plurality of different areas in the bill picture;
identifying fields in each image slice through an OCR automatic identification algorithm, and screening out image slices with overlapped bill fields and fuzzy image slices which cannot be accurately identified by the OCR automatic identification algorithm;
filtering the image slices with the overlapped bill fields and extracting corresponding field information;
establishing a corresponding manual identification order dispatching task for the fuzzy image slices, and simultaneously distributing the manual identification order dispatching task to a plurality of crowdsourcing personnel;
and receiving manual identification field information returned by manual identification, performing structured data processing on the manual identification field information and the field information identified by the OCR automatic identification algorithm, and outputting the structured bill information.
9. A ticket information desensitization collection device, comprising:
the scanning unit is used for scanning the bills and generating bill pictures of the bills;
the first communication module is used for being in communication connection with a local terminal of the authorized client;
the second communication module is used for being in communication connection with the crowdsourcing platform;
a processing unit for performing the ticket information desensitization collection method of any of claims 1-8.
10. A ticket information desensitization collection system, comprising: at least one bill information desensitization acquisition device, the local terminal of the authorized client and a crowdsourcing platform;
the local terminal of the authorized client and the crowdsourcing platform are respectively in communication connection with the bill information desensitization acquisition device;
the bill information desensitization acquisition device is arranged at a client;
the bill information desensitization acquisition device is the bill information desensitization acquisition device of claim 9.
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| CN202011125015.2A CN112329757A (en) | 2020-10-20 | 2020-10-20 | Method, device and system for desensitizing acquisition of bill information |
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| CN202011125015.2A CN112329757A (en) | 2020-10-20 | 2020-10-20 | Method, device and system for desensitizing acquisition of bill information |
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