CN104484639A - Decoding method and system - Google Patents
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- CN104484639A CN104484639A CN201410843952.XA CN201410843952A CN104484639A CN 104484639 A CN104484639 A CN 104484639A CN 201410843952 A CN201410843952 A CN 201410843952A CN 104484639 A CN104484639 A CN 104484639A
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Abstract
The invention provides a decoding method and system. Terminal decoding is combined with server decoding, when a terminal cannot conduct decoding successfully, an original code figure is uploaded to a server, the code figure is successfully analyzed as much as possible through mass information stored in the server to obtain a code value, the commodity attribute corresponding to the code value is then issued to the terminal, and therefore the success rate of code scanning for inquiring by the terminal is increased, and user experience is improved. In addition, when a two-dimensional code figure is incomplete or is abraded, the server conducts analysis to obtain a part of code value information; besides, the server can still inquire closest commodity attribute information through the part of code value information in combination with background characteristic information, and the decoding rate of the code figure is further increased. Besides, the decoding method and system have the advantages that the decoding process of the code figure is simple and efficient.
Description
Technical field
The invention belongs to technical field of information processing, be specifically related to a kind of coding/decoding method and decode system.
Background technology
At present, Quick Response Code is widely used in industry-by-industry, such as, and the industries such as logistics, the manufacturing industry, traffic, security protection, ticket.
Be applied as example with Quick Response Code in merchandise sales field, introduce the use principle of Quick Response Code: the database purchase Quick Response Code code value of (1) safety service platform and the corresponding relation of item property; (2) be fixed on commodity by the Quick Response Code with this Quick Response Code code value, such as, Quick Response Code A is fixed on commodity A, and Quick Response Code B is fixed on commodity B; (3) businessman is after vending articles, and buyer uses the Quick Response Code in intelligent terminal items scanning, and decodes to Quick Response Code at intelligent terminal, obtains Quick Response Code code value; Then, Quick Response Code code value is sent to safety service platform by intelligent terminal, safety service platform passes through Query Database, judge whether to there is the item property corresponding with this Quick Response Code code value, if had, then the item property found is returned to intelligent terminal, user can know the association attributes of bought commodity.
But mainly there is following problem in above-mentioned application mode:
Usually there is the phenomenon such as incompleteness or wearing and tearing in Quick Response Code code figure, therefore, when intelligent terminal adopts decoding algorithm to decode to Quick Response Code code figure, be usually difficult to normal solution and parse Quick Response Code code value, and then cause user to carry out follow-up query manipulation, reduce the experience of user to commodity.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of coding/decoding method and decode system, can effectively solve the problem.
The technical solution used in the present invention is as follows:
The invention provides a kind of coding/decoding method, comprise the following steps:
S1, terminal device gathers original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
S2, described terminal device is decoded to the described Quick Response Code identified region image in described original two dimensional code image, if successfully parse code value, then performs S3-S4; Otherwise, perform S5;
S3, described terminal device sends the request message of the inquiry information attribute value corresponding with described code value to server;
S4, described server is with described code value for searching keyword, and can Query Database, judge inquire the information attribute value corresponding with described code value; If can inquire, then the described information attribute value inquired is issued to described terminal device, and process ends; Otherwise, return the failed notification message of inquiry to described terminal device, and process ends;
S5, described terminal device by described original two dimensional code image uploading to server;
S6, described server is decoded to the described Quick Response Code identified region image in described original two dimensional code image, judges that success parses full code value information, if can, then perform S4; Otherwise, judge that success parses part code value information further, if can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If part code value information successfully can be parsed, then perform S7;
S7, can described server for searching keyword, searches database with described part code value information, judge inquire the information attribute value with described part code value information association; If can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If can, then judge that the information attribute value inquired belongs to the quantity of merchandise classification further, if be class I goods, then direct information attribute value corresponding for such commodity is issued to terminal device, and process ends; If be the above commodity of two classes, then perform S8;
S8, described server carries out feature extraction to the described background area image in described original two dimensional code image, obtains characteristic information point;
S9, in the above commodity of two classes that described server obtains at S7, selects and class I goods that the described characteristic information point that S8 obtains mates most, and the information attribute value of such commodity is issued to terminal device, and process ends.
Preferably, in S2, described terminal device is decoded to the described Quick Response Code identified region image in described original two dimensional code image, specifically comprises:
S2.1, described terminal device carries out contrast enhancement processing to described original two dimensional code image, then, carries out binary conversion treatment, obtain binaryzation image in 2 D code to the image in 2 D code strengthening contrast;
S2.2, described terminal device carries out decode operation to described binaryzation image in 2 D code.
Preferably, in S3, described information attribute value comprises at least one in trade name information, commodity production company-information, commodity production date and time information.
Preferably, S5 is specially:
Described original two dimensional code image is carried out compression process by described terminal device, then is uploaded onto the server by the image in 2 D code after compression.
Preferably, in S8, described characteristic information point is at least one in character features information point, color characteristic information point, pattern form characteristic information point.
Preferably, described original two dimensional code image is dot matrix image in 2 D code.
The present invention also provides a kind of decode system, comprises terminal device and server:
Described terminal device comprises:
Acquisition module, for gathering original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
Decoder module, decodes for the described Quick Response Code identified region image in the described original two dimensional code image that collects described acquisition module;
Enquiry module, for when described decoder module successfully parses code value, sends the request message of the inquiry information attribute value corresponding with described code value to server;
Receiver module, for receiving the Query Result of described server;
Display module, for showing the Query Result that described receiver module receives;
Described server comprises:
Receiving element, the inquiry request that the enquiry module for receiving described terminal device sends; Wherein, described inquiry request carries code value;
First query unit, can the code value for receiving with described receiving element be searching keyword, Query Database, judge inquire the information attribute value corresponding with described code value;
First issues unit, for the Query Result of described first query unit is issued to described terminal device;
Described terminal device also comprises:
Sending module, for when described query unit is inquired about unsuccessfully, by described original two dimensional code image uploading to server;
Described server also comprises:
Decoding unit, decodes for the described original two dimensional code image sent described sending module;
Second query unit, for when described decoding unit parses full code value information, with described full code value information for searching keyword, can Query Database, judge inquire the information attribute value corresponding with described full code value information;
Second issues unit, for the Query Result of described second query unit is issued to described terminal device; 3rd query unit, during for parsing part code value information when described decoding unit, with described part code value information for searching keyword, can Query Database, judge inquire the information attribute value with described part code value information association;
3rd issues unit, during for being empty when described 3rd query unit Query Result, returns the failed notification message of inquiry to described terminal device;
Judging unit, during for not being empty when described 3rd query unit Query Result, the further information attribute value judging that described 3rd query unit inquires belongs to the quantity of merchandise classification;
4th issues unit, for when the judged result of described judging unit is class I goods, directly information attribute value corresponding for such commodity is issued to terminal device;
Feature extraction unit, during for being the two above commodity of class when the judged result of described judging unit, carrying out feature extraction to the described background area image in described original two dimensional code image, obtaining characteristic information point;
Matching unit, during for being the two above commodity of class when described judging unit judged result, in the above commodity of described two class, selects and class I goods that the described characteristic information point that described feature extraction unit is extracted mates most;
5th issues unit, and the information attribute value for the commodity matched by described matching unit is issued to terminal device.
Preferably, described terminal device also comprises:
Image pre-processing module, for carrying out contrast enhancement processing to described original two dimensional code image, then, carrying out binary conversion treatment to the image in 2 D code strengthening contrast, obtaining binaryzation image in 2 D code; Then, described binaryzation image in 2 D code is sent to described decoder module.
Preferably, described terminal device also comprises:
Compression module, for when described query unit is inquired about unsuccessfully, carries out compression process, then the image in 2 D code after compression is sent to described sending module by described original two dimensional code image.
Preferably, described original two dimensional code image is dot matrix image in 2 D code.
Coding/decoding method provided by the invention and decode system, have the following advantages:
(1) decoding terminals and server decoding are combined, when terminal cannot successfully be decoded, source code figure is uploaded onto the server, by the magnanimity information of service memory, as much as possible successfully resolve code figure, obtain code value, then, the item property that code value is corresponding is again issued to terminal, thus improves the success ratio of terminal barcode scanning inquiry, improves the experience of user.
(2) when the phenomenon such as incompleteness or wearing and tearing appears in Quick Response Code code figure, server parses obtains part code value information, and, server passage demal value information, again in conjunction with background characteristics information, still can inquire information attribute value the most close, thus further increase a yard figure decoding rate; In addition, also there is simple, the efficient advantage of yard figure decode procedure.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of coding/decoding method provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, the invention provides a kind of coding/decoding method, comprise the following steps:
S1, terminal device gathers original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
Terminal device can be smart mobile phone or intelligent barcode scanning instrument, gathers original two dimensional code image and refers to: use the camera of smart mobile phone or the camera shooting image in 2 D code of intelligent barcode scanning instrument.
When gathering image in 2 D code, except the Quick Response Code code figure collecting rectangle, also can collect the background image that code figure has enough to meet the need.Herein; contact closely because commodity that the background image collected is usually corresponding with Quick Response Code code value exist; such as; for instant noodles Quick Response Code code figure; usually be pasted onto on Package bag for instant noodles, and Package bag for instant noodles usually can relate to instant noodles brand message or the instant noodles graphical information of written form.Therefore, can by the characteristic information of background image, aid identification Quick Response Code code value, detailed process can be introduced in detail at subsequent step of the present invention, is repeating no more.
S2, described terminal device is decoded to the described Quick Response Code identified region image in described original two dimensional code image, if successfully parse code value, then performs S3-S4; Otherwise, perform S5;
This step is specially:
S2.1, described terminal device carries out contrast enhancement processing to described original two dimensional code image, then, carries out binary conversion treatment, obtain binaryzation image in 2 D code to the image in 2 D code strengthening contrast;
S2.2, described terminal device carries out decode operation to described binaryzation image in 2 D code.
S3, described terminal device sends the request message of the inquiry information attribute value corresponding with described code value to server;
Wherein, information attribute value comprises at least one in trade name information, commodity production company-information, commodity production date and time information.
S4, described server is with described code value for searching keyword, and can Query Database, judge inquire the information attribute value corresponding with described code value; If can inquire, then the described information attribute value inquired is issued to described terminal device, and process ends; Otherwise, return the failed notification message of inquiry to described terminal device, and process ends;
S5, described terminal device by described original two dimensional code image uploading to server;
In this step, be save flow, can first by original two dimensional code compression of images to the amount of capacity not affecting decoding, then to upload.That is: described original two dimensional code image is carried out compression process by described terminal device, then is uploaded onto the server by the image in 2 D code after compression.
S6, described server is decoded to the described Quick Response Code identified region image in described original two dimensional code image, judges that success parses full code value information, if can, then perform S4; Otherwise, judge that success parses part code value information further, if can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If part code value information successfully can be parsed, then perform S7;
S7, can described server for searching keyword, searches database with described part code value information, judge inquire the information attribute value with described part code value information association; If can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If can, then judge that the information attribute value inquired belongs to the quantity of merchandise classification further, if be class I goods, then direct information attribute value corresponding for such commodity is issued to terminal device, and process ends; If be the above commodity of two classes, then perform S8;
S8, described server carries out feature extraction to the described background area image in described original two dimensional code image, obtains characteristic information point;
Such as, characteristic information point is at least one in character features information point, color characteristic information point, pattern form characteristic information point.
S9, in the above commodity of two classes that described server obtains at S7, selects and class I goods that the described characteristic information point that S8 obtains mates most, and the information attribute value of such commodity is issued to terminal device, and process ends.
For convenience of understanding, be exemplified below:
(1) full code value information situation is successfully parsed:
If successfully parse full code value information, due to the unique corresponding class I goods of complete code value, therefore, only need direct Query Database, Query Result only comprises two kinds of situations: there are not such commodity in database, or, the class I goods of existence anduniquess in database.
(2) due to reasons such as Quick Response Code wearing and tearing, the situation of part code value information is only successfully parsed:
The corresponding relation of the code value shown in following table and merchandise classification is stored in tentation data storehouse:
| Six bit code values | Merchandise classification |
| 123456 | A brand instant noodles commodity |
| 123457 | B brand instant noodles commodity |
| 123459 | C brand instant noodles commodity |
| 457824 | Alcoholic commercial articles |
| 523457 | Furniture commodity |
Due to reasons such as Quick Response Code wearing and tearing, the code value successfully parsed is: 4578xx; Wherein, x represents default, does not parse corresponding numerical value.Server is searching keyword with 4578xx, searches database, only can inquire alcoholic commercial articles, then the direct attribute information by alcoholic commercial articles is issued to terminal device;
If the code value successfully parsed is: 1234xx; Server is searching keyword with 1234xx, searches database, can inquire three class commodity, be respectively: A brand instant noodles commodity, B brand instant noodles commodity and C brand instant noodles commodity; Now, the ownership determining 1234xx code value is further needed; Therefore, in the present invention, feature extraction is carried out to the background area image in image in 2 D code, such as, extract " Shanxi " printed words, if for A brand instant noodles commodity, B brand instant noodles commodity and C brand instant noodles commodity, only the production address of A brand instant noodles is Shanxi, then clearly can determine that 1234xx code value belongs to A brand instant noodles, then, the attribute information of A brand instant noodles is issued to terminal device;
(2) due to Quick Response Code heavy wear reason, the situation of any code value is not parsed:
The part of this kind of information slip plain code figure loss is too much, has both made to carry out feature extraction to background parts, and has also been difficult to inquire relevant commodity, and therefore, no longer carried out feature extraction to background parts, returns the failed notification message of inquiry directly to terminal device.
The present invention also provides a kind of decode system, comprises terminal device and server:
Described terminal device comprises:
Acquisition module, for gathering original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
Decoder module, decodes for the described Quick Response Code identified region image in the described original two dimensional code image that collects described acquisition module;
Enquiry module, for when described decoder module successfully parses code value, sends the request message of the inquiry information attribute value corresponding with described code value to server;
Receiver module, for receiving the Query Result of described server;
Display module, for showing the Query Result that described receiver module receives;
Described server comprises:
Receiving element, the inquiry request that the enquiry module for receiving described terminal device sends; Wherein, described inquiry request carries code value;
First query unit, can the code value for receiving with described receiving element be searching keyword, Query Database, judge inquire the information attribute value corresponding with described code value;
First issues unit, for the Query Result of described first query unit is issued to described terminal device;
Described terminal device also comprises:
Sending module, for when described query unit is inquired about unsuccessfully, by described original two dimensional code image uploading to server;
Described server also comprises:
Decoding unit, decodes for the described original two dimensional code image sent described sending module;
Second query unit, for when described decoding unit parses full code value information, with described full code value information for searching keyword, can Query Database, judge inquire the information attribute value corresponding with described full code value information;
Second issues unit, for the Query Result of described second query unit is issued to described terminal device; 3rd query unit, during for parsing part code value information when described decoding unit, with described part code value information for searching keyword, can Query Database, judge inquire the information attribute value with described part code value information association;
3rd issues unit, during for being empty when described 3rd query unit Query Result, returns the failed notification message of inquiry to described terminal device;
Judging unit, during for not being empty when described 3rd query unit Query Result, the further information attribute value judging that described 3rd query unit inquires belongs to the quantity of merchandise classification;
4th issues unit, for when the judged result of described judging unit is class I goods, directly information attribute value corresponding for such commodity is issued to terminal device;
Feature extraction unit, during for being the two above commodity of class when the judged result of described judging unit, carrying out feature extraction to the described background area image in described original two dimensional code image, obtaining characteristic information point;
Matching unit, during for being the two above commodity of class when described judging unit judged result, in the above commodity of described two class, selects and class I goods that the described characteristic information point that described feature extraction unit is extracted mates most;
5th issues unit, and the information attribute value for the commodity matched by described matching unit is issued to terminal device.
Described terminal device also comprises:
Image pre-processing module, for carrying out contrast enhancement processing to described original two dimensional code image, then, carrying out binary conversion treatment to the image in 2 D code strengthening contrast, obtaining binaryzation image in 2 D code; Then, described binaryzation image in 2 D code is sent to described decoder module.
Described terminal device also comprises:
Compression module, for when described query unit is inquired about unsuccessfully, carries out compression process, then the image in 2 D code after compression is sent to described sending module by described original two dimensional code image.
Coding/decoding method provided by the invention and decode system, have the following advantages:
(1) decoding terminals and server decoding are combined, when terminal cannot successfully be decoded, source code figure is uploaded onto the server, by the magnanimity information of service memory, as much as possible successfully resolve code figure, obtain code value, then, the item property that code value is corresponding is again issued to terminal, thus improves the success ratio of terminal barcode scanning inquiry, improves the experience of user.
(2) when the phenomenon such as incompleteness or wearing and tearing appears in Quick Response Code code figure, server parses obtains part code value information, and, server passage demal value information, again in conjunction with background characteristics information, still can inquire information attribute value the most close, thus further increase a yard figure decoding rate; In addition, also there is simple, the efficient advantage of yard figure decode procedure.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (10)
1. a coding/decoding method, is characterized in that, comprises the following steps:
S1, terminal device gathers original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
S2, described terminal device is decoded to the described Quick Response Code identified region image in described original two dimensional code image, if successfully parse code value, then performs S3-S4; Otherwise, perform S5;
S3, described terminal device sends the request message of the inquiry information attribute value corresponding with described code value to server;
S4, described server is with described code value for searching keyword, and can Query Database, judge inquire the information attribute value corresponding with described code value; If can inquire, then the described information attribute value inquired is issued to described terminal device, and process ends; Otherwise, return the failed notification message of inquiry to described terminal device, and process ends;
S5, described terminal device by described original two dimensional code image uploading to server;
S6, described server is decoded to the described Quick Response Code identified region image in described original two dimensional code image, judges that success parses full code value information, if can, then perform S4; Otherwise, judge that success parses part code value information further, if can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If part code value information successfully can be parsed, then perform S7;
S7, can described server for searching keyword, searches database with described part code value information, judge inquire the information attribute value with described part code value information association; If can not, then return the failed notification message of inquiry directly to described terminal device, and process ends; If can, then judge that the information attribute value inquired belongs to the quantity of merchandise classification further, if be class I goods, then direct information attribute value corresponding for such commodity is issued to terminal device, and process ends; If be the above commodity of two classes, then perform S8;
S8, described server carries out feature extraction to the described background area image in described original two dimensional code image, obtains characteristic information point;
S9, in the above commodity of two classes that described server obtains at S7, selects and class I goods that the described characteristic information point that S8 obtains mates most, and the information attribute value of such commodity is issued to terminal device, and process ends.
2. coding/decoding method according to claim 1, is characterized in that, in S2, described terminal device is decoded to the described Quick Response Code identified region image in described original two dimensional code image, specifically comprises:
S2.1, described terminal device carries out contrast enhancement processing to described original two dimensional code image, then, carries out binary conversion treatment, obtain binaryzation image in 2 D code to the image in 2 D code strengthening contrast;
S2.2, described terminal device carries out decode operation to described binaryzation image in 2 D code.
3. coding/decoding method according to claim 1, is characterized in that, in S3, described information attribute value comprises at least one in trade name information, commodity production company-information, commodity production date and time information.
4. coding/decoding method according to claim 1, is characterized in that, S5 is specially:
Described original two dimensional code image is carried out compression process by described terminal device, then is uploaded onto the server by the image in 2 D code after compression.
5. coding/decoding method according to claim 1, is characterized in that, in S8, described characteristic information point is at least one in character features information point, color characteristic information point, pattern form characteristic information point.
6. the coding/decoding method according to any one of claim 1-5, is characterized in that, described original two dimensional code image is dot matrix image in 2 D code.
7. a decode system, is characterized in that, comprises terminal device and server:
Described terminal device comprises:
Acquisition module, for gathering original two dimensional code image; Wherein, described original two dimensional code image comprises Quick Response Code identified region image and background area image;
Decoder module, decodes for the described Quick Response Code identified region image in the described original two dimensional code image that collects described acquisition module;
Enquiry module, for when described decoder module successfully parses code value, sends the request message of the inquiry information attribute value corresponding with described code value to server;
Receiver module, for receiving the Query Result of described server;
Display module, for showing the Query Result that described receiver module receives;
Described server comprises:
Receiving element, the inquiry request that the enquiry module for receiving described terminal device sends; Wherein, described inquiry request carries code value;
First query unit, can the code value for receiving with described receiving element be searching keyword, Query Database, judge inquire the information attribute value corresponding with described code value;
First issues unit, for the Query Result of described first query unit is issued to described terminal device;
Described terminal device also comprises:
Sending module, for when described first query unit is inquired about unsuccessfully, by described original two dimensional code image uploading to server;
Described server also comprises:
Decoding unit, decodes for the described original two dimensional code image sent described sending module;
Second query unit, for when described decoding unit parses full code value information, with described full code value information for searching keyword, can Query Database, judge inquire the information attribute value corresponding with described full code value information;
Second issues unit, for the Query Result of described second query unit is issued to described terminal device; 3rd query unit, during for parsing part code value information when described decoding unit, with described part code value information for searching keyword, can Query Database, judge inquire the information attribute value with described part code value information association;
3rd issues unit, during for being empty when described 3rd query unit Query Result, returns the failed notification message of inquiry to described terminal device;
Judging unit, during for not being empty when described 3rd query unit Query Result, the further information attribute value judging that described 3rd query unit inquires belongs to the quantity of merchandise classification;
4th issues unit, for when the judged result of described judging unit is class I goods, directly information attribute value corresponding for such commodity is issued to terminal device;
Feature extraction unit, during for being the two above commodity of class when the judged result of described judging unit, carrying out feature extraction to the described background area image in described original two dimensional code image, obtaining characteristic information point;
Matching unit, during for being the two above commodity of class when described judging unit judged result, in the above commodity of described two class, selects and class I goods that the described characteristic information point that described feature extraction unit is extracted mates most;
5th issues unit, and the information attribute value for the commodity matched by described matching unit is issued to terminal device.
8. decode system according to claim 7, is characterized in that, described terminal device also comprises:
Image pre-processing module, for carrying out contrast enhancement processing to described original two dimensional code image, then, carrying out binary conversion treatment to the image in 2 D code strengthening contrast, obtaining binaryzation image in 2 D code; Then, described binaryzation image in 2 D code is sent to described decoder module.
9. decode system according to claim 7, is characterized in that, described terminal device also comprises:
Compression module, for when described query unit is inquired about unsuccessfully, carries out compression process, then the image in 2 D code after compression is sent to described sending module by described original two dimensional code image.
10. the decode system according to any one of claim 7-9, is characterized in that, described original two dimensional code image is dot matrix image in 2 D code.
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| CN109376568A (en) * | 2018-09-19 | 2019-02-22 | 上海商米科技有限公司 | Identify the method, apparatus and system of bar code |
| CN113111673A (en) * | 2021-04-09 | 2021-07-13 | 北京复兴华创技术有限公司 | Production line two-dimensional code rapid decoding method and device |
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