CN106557503A - A kind of method and system of image retrieval - Google Patents
A kind of method and system of image retrieval Download PDFInfo
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Abstract
The invention discloses a kind of method and system of image retrieval.The method of the image retrieval, is applied to retrieval server, and retrieval server includes central server and historical record server, and method includes：Historical record server receives benchmark image to be checked, judges that history is retrieved in record sheet with the presence or absence of the record entry matched with benchmark image to be checked；When there is the record entry matched with benchmark image to be checked, the retrieval result recorded in obtaining record entry；When there is no the record entry matched with benchmark image to be checked, send benchmark image to be checked and image retrieval is instructed to central server, wherein image retrieval is instructed from image comparison database carries out image retrieval by preserve the history retrieval record of image based on benchmark image to be checked for control centre's server.The efficiency of picture retrieval is improve, the load of the server for preserving image comparison database is reduced.
Description
Technical field
The present invention relates to image processing field, more particularly to a kind of method and system of image retrieval.
Background technology
Image retrieval and querying method are mainly based upon the image retrieval technologies of text and the image based on content
Retrieval technique.Text based image retrieval technologies by being manually labeled to the pictograph in video,
Again with keyword entering line retrieval, this technology not only takes time and effort, and word also is difficult to reflect image
In complete content.CBIR technology overcomes the time-consuming and deficiency of subjectivity, its basis
The characteristic information of image is searched, similar image is found out in image library.
The CBIR mode of current main flow on the market, is in general both for image and builds
Its model value is stored after mould, the overall situationization compares all of model value when initiating to scheme to search figure request, looks for
Go out similarity highest 1 or N pictures, it is so time-consuming longer, and comparing every time does not have algorithm to be situated between
Enter, rely on merely violence alignments, recall precision is low, the load of server is high.
The content of the invention
It is an object of the invention to provide a kind of method and system of image retrieval, which passes through to preserve going through for image
History retrieval record, when picture retrieval task is received, judges that picture retrieval is appointed from history retrieval record
Record of the benchmark image to be checked in business with the presence or absence of matching, if it does, directly recording from history retrieval
Middle acquisition retrieval result, carries out image retrieval otherwise in image comparison database；Improve the retrieval of picture
Efficiency, reduces the load of the server for preserving image comparison database.
For achieving the above object, specifically employ the following technical solutions：
On the one hand a kind of method of image retrieval is adopted, retrieval server is applied to, the retrieval server includes
Central server and historical record server, methods described include：
Historical record server receives benchmark image to be checked, judge history retrieve in record sheet with the presence or absence of with
The record entry of the benchmark image matching to be checked；
When there is the record entry matched with the benchmark image to be checked, remember in obtaining the record entry
The retrieval result of record；
When there is no the record entry matched with the benchmark image to be checked, send the benchmark image to be checked and
Image retrieval is instructed to central server, and wherein described image search instruction is used to control the center service
Device carries out image retrieval from image comparison database based on the benchmark image to be checked.
On the other hand a kind of system of image retrieval is adopted, retrieval server, the retrieval server bag is applied to
Central server and historical record server are included, the system includes：
Matching unit is received, benchmark image to be checked is received for historical record server, judge that history is retrieved
With the presence or absence of the record entry matched with the benchmark image to be checked in record sheet；
First retrieval unit, for when there is the record entry matched with the benchmark image to be checked, obtaining
The retrieval result recorded in taking the record entry；
Second retrieval unit, for when there is no the record entry matched with the benchmark image to be checked, sending
The benchmark image to be checked and image retrieval are instructed to central server, and wherein described image search instruction is used
Image inspection is carried out from image comparison database based on the benchmark image to be checked in the central server is controlled
Rope.
The beneficial effects of the present invention is：By the history retrieval record for preserving image, when receiving picture
During retrieval tasks, judge whether the benchmark image to be checked in picture retrieval task is deposited from history retrieval record
In the record of matching, if it does, directly retrieval result is obtained from history retrieval record, otherwise in figure
As image retrieval is carried out in comparison database；The effectiveness of retrieval of picture is improve, preservation image comparison is reduced
The load of the server in storehouse.
Description of the drawings
Fig. 1 is a kind of first embodiment of the method for the image retrieval provided in the specific embodiment of the invention
Method flow diagram.
Fig. 2 is a kind of second embodiment of the method for the image retrieval provided in the specific embodiment of the invention
Method flow diagram.
Fig. 3 is a kind of second embodiment of the method for the image retrieval provided in the specific embodiment of the invention
Application scenarios schematic diagram.
Fig. 4 is a kind of 3rd embodiment of the method for the image retrieval provided in the specific embodiment of the invention
Method flow diagram.
Fig. 5 is a kind of 3rd embodiment of the method for the image retrieval provided in the specific embodiment of the invention
Application scenarios schematic diagram.
Fig. 6 is a kind of first embodiment of the system of the image retrieval provided in the specific embodiment of the invention
Block diagram.
Fig. 7 is a kind of second embodiment of the system of the image retrieval provided in the specific embodiment of the invention
Block diagram.
Fig. 8 is a kind of 3rd embodiment of the system of the image retrieval provided in the specific embodiment of the invention
Block diagram.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to being embodied as
Mode referring to the drawings, the present invention is described in more detail.It should be understood that these descriptions are example
Property, and it is not intended to limit the scope of the present invention.Additionally, in the following description, eliminate to known knot
The description of structure and technology, to avoid unnecessarily obscuring idea of the invention.
Fig. 1 is refer to, which is a kind of method of the image retrieval provided in the specific embodiment of the invention
The method flow diagram of first embodiment.Method in the present embodiment, is mainly used in based on internet to scheme
The retrieval server of figure is searched, the retrieval server includes central server and historical record server.Such as
Shown in figure, the method, including：
Step S101：Historical record server receives benchmark image to be checked, in judging history retrieval record sheet
With the presence or absence of the record entry matched with the benchmark image to be checked.
History is retrieved record sheet and records all retrievals for occurring for storage, when new retrieval is initiated,
Benchmark image to be checked is compared with other all pictures, but carries out with the retrieval once initiated
Compare, compared with other all pictures, the correlation of the history retrieving image recorded in history retrieval record sheet
The quantity of information is many less, if it is possible to finds similar to search in history retrieval record sheet, directly reads
The retrieval result of similar to search is taken, efficiency is greatly improved；If history can not find in retrieving record sheet again
Similar to search, because the sample very little of retrieval, will not also spend the too many time.Generally speaking, with it is direct
For entering line retrieval to whole pictures, it is possible to increase recall precision.
Step S102：When there is the record entry matched with the benchmark image to be checked, the note is obtained
The retrieval result recorded in record entry.
Step S103：When there is no the record entry matched with the benchmark image to be checked, send described
Benchmark image to be checked and image retrieval are instructed to central server, and wherein described image search instruction is used to control
Making the central server carries out image retrieval from image comparison database based on the benchmark image to be checked.
It is with regard to omnibearing image retrieval is directly carried out in picture comparison database, in the prior art to have old more
State, here is not described further.
In the present embodiment, history retrieval record sheet and image comparison database can be stored in different services respectively
In device, can also be stored in same server.When same server is stored in, when there is user
When initiating picture retrieval, directly benchmark image to be checked is sent to server, server can judge that history is retrieved
With the presence or absence of the history retrieval record matched with the benchmark image to be checked for newly receiving in record sheet.If not yet
Have, and complete search is carried out in the server, equivalent to all of retrieval all in same server
Complete.
In sum, recorded by preserving the history retrieval of image, when picture retrieval task is received,
The benchmark image to be checked judged in record in picture retrieval task is retrieved from history with the presence or absence of the note for matching
Record, if it does, directly retrieval result is obtained from history retrieval record, otherwise in image comparison database
Carry out image retrieval；The effectiveness of retrieval of picture is improve, the server for preserving image comparison database is reduced
Load.
Fig. 2 is refer to, which is a kind of method of the image retrieval provided in the specific embodiment of the invention
The method flow diagram of second embodiment, as illustrated, the method includes：
Step S201：Historical record server 20 receives benchmark image to be checked, generates the benchmark to be checked
The iconic model value of image.
In the present embodiment, history retrieval record sheet is stored in special historical record server 20, is going through
The coordinate indexing of historical record is carried out in Records of the Historian record server 20 only.
For historical record server 20, which needs to preserve history retrieval record, but such as
Fruit will initiate the corresponding benchmark image to be checked of retrieval itself every time and preserve, time passage at any time, retrieval note
Record is continuously increased, and the benchmark image to be checked of the storage of historical record server 20 can take substantial amounts of storage money
Source, and for computer, its with regard to image similarity judgment mode with human eye with regard to image
Similarity judgment mode is two kinds of diverse modes.Computer be by characteristic value comparing,
So historical record server 20 can generate the image of benchmark image to be checked after benchmark image to be checked is received
Model value is to extract characteristic value, so historical record server 20 directly preserves iconic model value, it is convenient to compare
It is right, it is also convenient for storage.
Step S202：In judging history retrieval record sheet, if exist the iconic model value of record with
Record entry of the similarity of the iconic model value of the benchmark image to be checked more than or equal to predetermined threshold value.
It is just the same with the benchmark image to be checked benchmark image to be checked that is not intended to sue for peace, but have certain
Similarity, such as more than 90% similarity, you can be considered as the history retrieval record of matching.
Step S203：When there is the record entry matched with the benchmark image to be checked, the note is obtained
The retrieval result recorded in record entry.
Step S204：When the iconic model value that there is no record and the iconic model of the benchmark image to be checked
When the similarity of value reaches the record entry of threshold value, the benchmark image to be checked and image retrieval instruction are sent
To central server, wherein described image search instruction is treated based on described for controlling the central server
Inspection benchmark image carries out image retrieval from image comparison database.
All pictures for being compared with benchmark image to be checked are stored in central server 30 in addition,
When the history retrieval record for not finding to match in historical record server 20, historical record server
20 send image retrieval request to central server 30, retrieve in the image of the storage of central server 30
The image similar to benchmark image to be checked.
Step S205：Receive the retrieval result based on described image search instruction.
Be primarily referred to as historical record server central server is received according to the generation of described image search instruction
Retrieval result.
Step S206：The newly-built record entry in history retrieval record sheet, by the retrieval result pair
Newly-built record entry should be added to.
After image retrieval new each time is initiated, the iconic model value of the benchmark image to be checked of this retrieval
Preserve with corresponding retrieval result, when the retrieval of similar image is encountered next time, directly derive current preservation
Record result.
Step S207：The central server cycle retrieves record sheet to the history in described image comparison database
The iconic model value of middle record carries out image retrieval and updates corresponding retrieval result.
In image comparison database, the image of storage can be constantly updated, that is, retrieve the retrieval for obtaining before
As a result the correct result not necessarily retrieved again, in order to ensure history retrieval record sheet in record in
Hold correctly, the result in history retrieval record sheet in historical record server 20, can be constantly updated, that is,
Image retrieval is voluntarily initiated with regard to existing iconic model value in history retrieval record sheet constantly, by new image
The result of retrieval replaces the result of original image retrieval, updates record entry.
Fig. 3 is refer to, which is a kind of method of the image retrieval provided in the specific embodiment of the invention
The schematic diagram of the application scenarios of second embodiment.In the present embodiment, complete retrieving can be with
It is considered as and is made up of transmission terminal 10, historical record server 20 and central server 30.Image retrieval by
Send terminal 10 initiate, send 10 input picture A of terminal, historical record server 20 receive with regard to
After the retrieval request of image A, can retrieve in the history retrieval record sheet that itself preserves first and whether there is
The history retrieval record matched with image A, if it does, recording in directly reading corresponding record entry
Retrieval result；Otherwise inconocenter server 30 forwards the retrieval request with regard to image A；Historical record
Server 20 can preserve retrieval result of the central server 30 with regard to image A.And can constantly update
The retrieval result of the retrieval object of preservation.Retrieval result is returned to transmission terminal 10 is retrieving
Basic steps, here are not described further.
In sum, recorded by preserving the history retrieval of image, when picture retrieval task is received,
The benchmark image to be checked judged in record in picture retrieval task is retrieved from history with the presence or absence of the note for matching
Record, if it does, directly retrieval result is obtained from history retrieval record, otherwise in image comparison database
Carry out image retrieval；The effectiveness of retrieval of picture is improve, the server for preserving image comparison database is reduced
Load.Meanwhile, by historical record server 20 and central server 30 are respectively provided with, will not
With the data storage of purposes in different servers, the efficiency of data processing is improve.
Fig. 4 is refer to, which is a kind of method of the image retrieval provided in the specific embodiment of the invention
The method flow diagram of 3rd embodiment, the present embodiment are realized based on the application scenarios shown in Fig. 5.Such as Fig. 4
Shown, the method includes：
Step S301：Apart from the nearest history note of the IP address of the transmission terminal of the benchmark image to be checked
Record server receives benchmark image to be checked, generates the iconic model value of the benchmark image to be checked.
The historical record server 20 includes at least 2, such as the first historical record shown in Fig. 5
Server 21 and the second historical record server 22, can also further include the 3rd historical record service
Device 23.Multiple stage historical record server 20 is set and can further improve retrieval rate, especially for big
The user of scope distribution, can realize identical or relatively transmission delay, improve recall precision.
Terminal 10 is sent when image retrieval is initiated, the interface meeting judging distance for initiating image retrieval sends eventually
The nearest historical record server 20 of IP address at end 10, by closest historical record server
20 correlated results that image retrieval is provided.
Step S302：In judging history retrieval record sheet, if exist the iconic model value of record with
Record entry of the similarity of the iconic model value of the benchmark image to be checked more than or equal to predetermined threshold value.
Step S303：When there is the record entry matched with the benchmark image to be checked, the note is obtained
The retrieval result recorded in record entry.
Step S304：When there is no the record entry matched with the benchmark image to be checked, send described
Benchmark image to be checked and image retrieval are instructed to central server, and wherein described image search instruction is used to control
Making the central server carries out image retrieval from image comparison database based on the benchmark image to be checked.
Step S305：Receive the retrieval result based on described image search instruction.
Step S306：In the first history retrieval record sheet that the first historical record server is preserved
Newly-built first record entry；And the second history retrieval note preserved in the second historical record server
Newly-built second record entry in record table.
Step S307：Retrieval result correspondence is added to into the first record entry and second note
Record entry.
In order to ensure to preserve in every historical record server 20 history retrieval record sheet it is newest and synchronous,
After new retrieval occurs every time, all can carry out more to retrieving record in all of historical record server 20
Newly, add new record entry.
The content recorded in the record entry includes：The iconic model value of the benchmark image to be checked, extremely
The address of a few retrieval result image, the iconic model value of each retrieval result image are treated with described
The similarity of the iconic model value of inspection benchmark image.
Due to the information data very little such as iconic model value, similarity, picture address, it is possible at 1
More than one hundred million such information are stored on machine.
For each new retrieval, at least need to obtain a similarity highest picture, if
Multiple similarities are all higher, reach the picture of a certain threshold value, then can obtain multiple pictures as retrieval
As a result.For historical record server 20, it is not directly to preserve the picture that retrieval is obtained, but protects
The corresponding address of picture is deposited, relative to picture file is directly preserved, storage resource can be saved in a large number, be subtracted
It is few to repeat to store, send terminal 10 and directly pass through address acquisition picture.When stored, while preserving retrieval
As a result the similarity for obtaining is compared in per pictures.When retrieval result is returned, directly similarity is returned most
High some pictures.
Step S308：Central server periodically retrieves record sheet to the history in described image comparison database
The iconic model value of middle record carries out image retrieval and updates corresponding retrieval result.
When the renewal of history retrieval record sheet is carried out, can be each single with every historical record server 20
Solely update.But it is because that every historical record server 20 is retrieved the iconic model value in record sheet by history
Again retrieve one time and can expend substantial amounts of computing resource, and it is time-consuming longer.A certain historical record can be adopted
After server 20 updates, synchronously shared mode realizes whole updating.
Step S309：30 cycle of the central server is sent to the historical record server 20 to be used for
The comparison photographic model of image retrieval and alignment similarity.
Central server 30 includes server cluster, realizes the storage and process of big data.Because image
Updating for strategy is processed, image procossing scheme is used in image retrieval procedure and is also continually changing, center
30 cycle of server distributes the comparison diagram that can be used in image retrieval procedure to historical record server 20
Piece model and contrast similarity；Continue to optimize the efficiency and precision of image retrieval.
In sum, recorded by preserving the history retrieval of image, when picture retrieval task is received,
The benchmark image to be checked judged in record in picture retrieval task is retrieved from history with the presence or absence of the note for matching
Record, if it does, directly retrieval result is obtained from history retrieval record, otherwise in image comparison database
Carry out image retrieval；The efficiency of picture retrieval is improve, the server of preservation image comparison database is reduced
Load.By multiple stage historical record server 20 and the central server 30 of clustering, retrieval is improve
As a result feedback speed, increases the storage capacity of image comparison database.
A kind of embodiment of the system of the image retrieval provided in the following is the specific embodiment of the invention, figure
Embodiment of the embodiment of the system of picture retrieval based on the method for above-mentioned image retrieval is realized, in several images
Not most elaboration in the embodiment of the system of retrieval, refer to the embodiment of the method for above-mentioned image retrieval.
Fig. 6 is refer to, which is a kind of system of the image retrieval provided in the specific embodiment of the invention
The block diagram of first embodiment, as illustrated, the system is applied to retrieval server, the retrieval
Server includes central server and historical record server, and the system includes：
Matching unit 410 is received, and benchmark image to be checked is received for historical record server, is judged history
With the presence or absence of the record entry matched with the benchmark image to be checked in retrieval record sheet；
First retrieval unit 420, for when exist match with the benchmark image to be checked record entry when,
The retrieval result recorded in obtaining the record entry；
Second retrieval unit 430, for not there is the record entry matched with the benchmark image to be checked
When, send the benchmark image to be checked and image retrieval is instructed to central server, wherein described image inspection
Suo Zhiling is carried out based on the benchmark image to be checked from image comparison database for controlling the central server
Image retrieval.
In sum, the collaborative work of above-mentioned each unit, is recorded by preserving the history retrieval of image, when
When receiving picture retrieval task, the benchmark to be checked judged in record in picture retrieval task is retrieved from history
Record of the image with the presence or absence of matching, if it does, directly retrieval result is obtained from history retrieval record,
Image retrieval is carried out otherwise in image comparison database；The effectiveness of retrieval of picture is improve, preservation is reduced
The load of the server of image comparison database.
Fig. 7 is refer to, which is a kind of system of the image retrieval provided in the specific embodiment of the invention
The block diagram of second embodiment, as illustrated, the system, including：
Matching unit 410 is received, and benchmark image to be checked is received for historical record server, is judged history
With the presence or absence of the record entry matched with the benchmark image to be checked in retrieval record sheet；
First retrieval unit 420, for when exist match with the benchmark image to be checked record entry when,
The retrieval result recorded in obtaining the record entry；
Second retrieval unit 430, for not there is the record entry matched with the benchmark image to be checked
When, send the benchmark image to be checked and image retrieval is instructed to central server, wherein described image inspection
Suo Zhiling is carried out based on the benchmark image to be checked from image comparison database for controlling the central server
Image retrieval.
Wherein, also include：
Retrieval result receiving unit 440, for receiving the retrieval result based on described image search instruction；
Record entry adding device 450, for retrieving the newly-built record entry of record sheet in the history, will
The iconic model value of the benchmark image to be checked is corresponding with the retrieval result that described image is retrieved be added to it is newly-built
Record entry.
Wherein, also include：
Retrieval record updating block 460, for the central server cycle in described image comparison database to institute
The iconic model value recorded in stating history retrieval record sheet carries out image retrieval and updates corresponding retrieval knot
Really.
Wherein, the reception matching unit 410 is applied to historical record server 20, including：
Analysis module 411 is received, for receiving benchmark image to be checked, the benchmark image to be checked is generated
Iconic model value；
Judge matching module 412, for judging in the history retrieval record sheet, if there is record
Iconic model value is more than or equal to predetermined threshold value with the similarity of the iconic model value of the benchmark image to be checked
Record entry.
In sum, the cooperative cooperating of above-mentioned functions module, by the history retrieval record for preserving image,
When picture retrieval task is received, the base to be checked judged in record in picture retrieval task is retrieved from history
Record of the quasi- image with the presence or absence of matching, if it does, directly obtaining retrieval knot from history retrieval record
Really, image retrieval is carried out otherwise in image comparison database；The effectiveness of retrieval of picture is improve, is reduced
Preserve the load of the server of image comparison database.Meanwhile, by historical record server 20 is genuinely convinced with
Business device 30 is respectively provided with, and by the data storage of different purposes in different servers, improves at data
The efficiency of reason.
Fig. 8 is refer to, which is a kind of system of the image retrieval provided in the specific embodiment of the invention
The block diagram of 3rd embodiment, as illustrated, the system, including：
Matching unit 410 is received, and benchmark image to be checked is received for historical record server, is judged history
With the presence or absence of the record entry matched with the benchmark image to be checked in retrieval record sheet；
History retrieval record sheet is stored in historical record server 20, and historical record server 20 includes
At least 2.
First retrieval unit 420, for when exist match with the benchmark image to be checked record entry when,
The retrieval result recorded in obtaining the record entry；
The content recorded in record entry includes：The iconic model value of the benchmark image to be checked, at least one
The address of individual retrieval result image, the iconic model value of each retrieval result image and the base to be checked
The similarity of the iconic model value of quasi- image.
Second retrieval unit 430, for not there is the record entry matched with the benchmark image to be checked
When, send the benchmark image to be checked and image retrieval is instructed to central server, wherein described image inspection
Suo Zhiling is carried out based on the benchmark image to be checked from image comparison database for controlling the central server
Image retrieval.
The system, also includes：
Retrieval result receiving unit 440, for receiving the retrieval result based on described image search instruction；
Record entry adding device 450, for retrieving the newly-built record entry of record sheet in the history, will
The iconic model value of the benchmark image to be checked is corresponding with the retrieval result that described image is retrieved be added to it is newly-built
Record entry.
Wherein, also include：
Retrieval record updating block 460, for the central server cycle in described image comparison database to institute
The iconic model value recorded in stating history retrieval record sheet carries out image retrieval and updates corresponding retrieval knot
Really.
Wherein, the reception matching unit 410 is applied to the transmission terminal apart from the benchmark image to be checked
10 nearest historical record servers 20, which includes：
Analysis module 411 is received, for receiving benchmark image to be checked, the benchmark image to be checked is generated
Iconic model value；
Judge matching module 412, for judging in the history retrieval record sheet, if there is record
Iconic model value is more than or equal to predetermined threshold value with the similarity of the iconic model value of the benchmark image to be checked
Record entry.
The system also includes：
Newly-built unit 470, for the first history retrieval preserved in the first historical record server
Newly-built first record entry in record sheet；
And newly-built second in the second history retrieval record sheet that the second historical record server is preserved
Record entry；
Memory cell 480, for retrieval result correspondence is added to the first record entry and institute
State the second record entry.
In sum, the cooperative cooperating of above-mentioned functions module, by the history retrieval record for preserving image,
When picture retrieval task is received, the base to be checked judged in record in picture retrieval task is retrieved from history
Record of the quasi- image with the presence or absence of matching, if it does, directly obtaining retrieval knot from history retrieval record
Really, image retrieval is carried out otherwise in image comparison database；The effectiveness of retrieval of picture is improve, is reduced
Preserve the load of the server of image comparison database.By in multiple stage historical record server 20 and clustering
Central server 30, improves the feedback speed of retrieval result, increases the storage capacity of image comparison database.
It should be appreciated that the above-mentioned specific embodiment of the present invention is used only for exemplary illustration or explanation
The principle of the present invention, and be not construed as limiting the invention.Therefore, without departing from the present invention spirit and
Any modification, equivalent substitution and improvements done in the case of scope etc., should be included in the guarantor of the present invention
Within the scope of shield.Additionally, claims of the present invention be intended to fall into scope and
Whole in the equivalents on border or this scope and border changes and modifications example.
Although embodiments of the present invention are described in detail, it should be understood that, without departing from
In the case of the spirit and scope of the present invention, embodiments of the present invention can be made with various changes, replaced
Change and change.
Claims (14)
1. a kind of method of image retrieval, it is characterised in that be applied to retrieval server, the retrieval
Server includes central server and historical record server, and methods described includes：
Historical record server receives benchmark image to be checked, whether there is in judging history retrieval record sheet
The record entry matched with the benchmark image to be checked；
When there is the record entry matched with the benchmark image to be checked, obtain in the record entry
The retrieval result of record；
When there is no the record entry matched with the benchmark image to be checked, the benchmark to be checked is sent
Image and image retrieval are instructed to central server, and wherein described image search instruction is described for controlling
Central server carries out image retrieval from image comparison database based on the benchmark image to be checked.
2. method according to claim 1, it is characterised in that it is described ought not exist treat with described
During the record entry of inspection benchmark image matching, the benchmark image to be checked and image retrieval instruction are being sent
To central server, methods described also includes：
Receive the retrieval result based on described image search instruction；
The newly-built record entry in history retrieval record sheet, retrieval result correspondence is added to
Newly-built record entry.
3. method according to claim 2, it is characterised in that also include：
Central server is periodically to recording in history retrieval record sheet in described image comparison database
Iconic model value carry out image retrieval and update corresponding retrieval result.
4. method according to claim 1, it is characterised in that the historical record server connects
Receive benchmark image to be checked, judge history retrieval record sheet in the presence or absence of with the benchmark image to be checked
The record entry matched somebody with somebody, including：
Historical record server receives benchmark image to be checked, generates the image mould of the benchmark image to be checked
Offset；
In judging the history retrieval record sheet, if the iconic model value that there is record is to be checked with described
Record entry of the similarity of the iconic model value of benchmark image more than or equal to predetermined threshold value.
5. method according to claim 2, it is characterised in that the historical record server bag
Include the first historical record server and the second historical record server；
It is described when there is no the record entry matched with the benchmark image to be checked, send described in treating
Inspection benchmark image and image retrieval are instructed to central server, and methods described also includes：
Newly-built the in the first history that the first historical record server is preserved retrieval record sheet
One record entry；
And it is newly-built in the second history retrieval record sheet that the second historical record server is preserved
Second record entry；
Retrieval result correspondence is added to into the first record entry and the second record entry.
6. method according to claim 5, it is characterised in that the historical record server connects
Benchmark image to be checked is received, the iconic model value of the benchmark image to be checked is generated, including：
Apart from the nearest historical record server of the IP address of the transmission terminal of the benchmark image to be checked
Benchmark image to be checked is received, the iconic model value of the benchmark image to be checked is generated.
7. method according to claim 1, it is characterised in that record in the record entry
Content includes：The ground of the iconic model value of the benchmark image to be checked, at least one retrieval result image
Location, the iconic model of the iconic model value of each retrieval result image and the benchmark image to be checked
The similarity of value.
8. a kind of system of image retrieval, it is characterised in that be applied to retrieval server, the retrieval service
Device includes central server and historical record server, and the system includes：
Matching unit is received, benchmark image to be checked is received for historical record server, judge that history is examined
With the presence or absence of the record entry matched with the benchmark image to be checked in rope record sheet；
First retrieval unit, for when exist match with the benchmark image to be checked record entry when,
The retrieval result recorded in obtaining the record entry；
Second retrieval unit, for not there is the record entry matched with the benchmark image to be checked
When, send the benchmark image to be checked and image retrieval is instructed to central server, wherein described image
Search instruction is used to control the central server based on the benchmark image to be checked from image comparison database
In carry out image retrieval.
9. system according to claim 8, it is characterised in that also include：
Retrieval result receiving unit, for receiving the retrieval result based on described image search instruction；
Record entry adding device, for the newly-built record entry in history retrieval record sheet, will
The retrieval result correspondence is added to newly-built record entry.
10. system according to claim 9, it is characterised in that also include：
Retrieval record updating block, for the central server cycle in described image comparison database to described
The iconic model value recorded in history retrieval record sheet carries out image retrieval and updates corresponding retrieval knot
Really.
11. systems according to claim 8, it is characterised in that the reception matching unit application
In historical record server, including：
Analysis module is received, for receiving benchmark image to be checked, the figure of the benchmark image to be checked is generated
As model value；
Judge matching module, for judging in the history retrieval record sheet, if there is the figure of record
As similarity of the model value with the iconic model value of the benchmark image to be checked is more than or equal to predetermined threshold value
Record entry.
12. systems according to claim 9, it is characterised in that the historical record server bag
Include the first historical record server and the second historical record server；
The system also includes：
Newly-built unit, for the first history retrieval note preserved in the first historical record server
Newly-built first record entry in record table；
And it is newly-built in the second history retrieval record sheet that the second historical record server is preserved
Second record entry；
Memory cell, for retrieval result correspondence is added to the first record entry and described
Second record entry.
13. systems according to claim 12, it is characterised in that the reception matching unit should
For the nearest historical record server of the IP address of the transmission terminal apart from the benchmark image to be checked.
14. systems according to claim 8, it is characterised in that record in the record entry
Content includes：The ground of the iconic model value of the benchmark image to be checked, at least one retrieval result image
Location, the iconic model of the iconic model value of each retrieval result image and the benchmark image to be checked
The similarity of value.
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