CN106776777B - Geographic position information identification method and device and terminal - Google Patents
Geographic position information identification method and device and terminal Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
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- G06F16/5838—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content using colour
Abstract
The invention provides a method, a device and a terminal for identifying geographical position information, wherein the method for identifying the geographical position information comprises the following steps: when a target picture specified by a user is received, extracting characteristic information of the target picture; acquiring unique identification information of a wireless access point to which a terminal is currently accessed, and determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to the geographical position information; and inquiring the picture matched with the target picture in the target picture database according to the characteristic information of the target picture, and taking the found geographical position information corresponding to the picture matched with the target picture as the geographical position information corresponding to the target picture. According to the technical scheme, in the process of identifying the corresponding geographic position information based on the picture, the picture database to be searched is reduced, and the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a method and a device for identifying geographical position information and a terminal.
Background
In the related art, in the process of inquiring the corresponding geographic position information based on the pictures, the used image library is generally large, the number of compared pictures is large, similar pictures may exist at different positions, and finally, the search result has large errors and the identification efficiency is low.
Therefore, how to quickly and accurately search the corresponding geographic position information based on the picture becomes an urgent technical problem to be solved.
Disclosure of Invention
The invention is based on at least one of the technical problems, and provides a new identification scheme of geographical position information, so that in the process of identifying corresponding geographical position information based on pictures, a picture database to be searched is reduced, the accuracy of geographical position information identification is ensured, and the identification efficiency is improved.
In view of this, the present invention provides a method for identifying geographic location information, including: when a target picture specified by a user is received, extracting characteristic information of the target picture; acquiring unique identification information of a wireless access point to which a terminal is currently accessed, and determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to geographical position information; and inquiring the picture matched with the target picture in the target picture database according to the characteristic information of the target picture, and taking the found geographical position information corresponding to the picture matched with the target picture as the geographical position information corresponding to the target picture.
According to the technical scheme, the unique identification information of the wireless access point which is accessed by the terminal at present is obtained, the target picture database is determined according to the unique identification information of the wireless access point, the picture matched with the target picture is inquired in the target picture database according to the extracted characteristic information of the target picture specified by the user and is used as the geographic position information corresponding to the target picture, blind retrieval in a large number of picture databases is not needed, the target database only needs to be retrieved in a targeted manner, the picture database needing to be retrieved is greatly reduced, and the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
In the above technical solution, preferably, the step of querying, according to the feature information of the target picture, a picture matched with the target picture in the target picture database specifically includes: acquiring characteristic information of each picture; comparing the characteristic information of the target picture with the characteristic information of each picture to obtain the similarity between the target picture and each picture; and determining the picture matched with the target picture according to the similarity between the target picture and each picture.
In the technical scheme, the accuracy of the picture searching result is ensured by comparing the characteristic information of the target picture with the characteristic information of each picture and determining the picture matched with the target picture according to the similarity between the obtained target picture and each picture.
In any one of the above technical solutions, preferably, the step of determining, according to the similarity between the target picture and each of the pictures, a picture matched with the target picture specifically includes: sequencing each picture according to the similarity between the target picture and each picture; and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
In the technical scheme, each picture is sequenced according to the similarity between the target picture and each picture, specifically, the pictures can be sequenced in a descending order, the picture which is sequenced at the forefront is the picture with the highest similarity with the target picture, of course, the pictures can also be sequenced in an ascending order, the picture which is sequenced at the last is the picture with the highest similarity with the target picture, and the picture with the highest similarity with the target picture is taken as the picture matched with the target picture, so that the accuracy of the finally determined geographic position information is ensured.
In any one of the above technical solutions, preferably, before the step of obtaining the feature information of each picture, the method further includes: creating a feature information base associated with the target database; extracting the characteristic information of each picture, and storing the characteristic information of each picture and the geographical position information corresponding to each picture into the characteristic information base in a correlation manner.
In the technical scheme, the characteristic information of each picture and the geographical position information corresponding to each picture are stored in the created characteristic information base associated with the target database in an associated manner, so that the characteristic information base can be directly called from the characteristic information base according to requirements, the characteristic information of each picture does not need to be extracted one by one in real time, and the identification efficiency of the whole geographical position information is further improved.
In any one of the above technical solutions, preferably, before the step of determining the target picture database according to the unique identification information of the wireless access point, the method further includes: pre-storing the association relationship between the unique identification information of each preset access point in a plurality of preset wireless access points and a picture database corresponding to each preset wireless access point; the step of determining the target picture database according to the unique identification information of the wireless access point specifically includes: and in the association relation, searching a picture database corresponding to the unique identification information of the wireless access point, and taking the picture database as the target picture database.
In the technical scheme, the association relationship between the unique identification information of each preset access point and the picture database corresponding to each preset wireless access point is prestored, so that a precondition guarantee is provided for subsequently searching the target picture database, and the picture database corresponding to the unique identification information of the wireless access point is searched in the association relationship and is used as the target picture database, so that the accuracy of the searching result of the target picture database is ensured.
According to a second aspect of the present invention, there is provided an identification apparatus of geographical location information, comprising: the device comprises an extraction unit, a processing unit and a display unit, wherein the extraction unit is used for extracting the characteristic information of a target picture when the target picture specified by a user is received; the first acquisition unit is used for acquiring the unique identification information of the wireless access point to which the terminal is currently accessed; the first determining unit is used for determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to the geographic position information; the first processing unit is configured to query, according to the feature information of the target picture, a picture matched with the target picture in the target picture database, and use the found geographic position information corresponding to the picture matched with the target picture as the geographic position information corresponding to the target picture.
According to the technical scheme, the unique identification information of the wireless access point which is accessed by the terminal at present is obtained, the target picture database is determined according to the unique identification information of the wireless access point, the picture matched with the target picture is inquired in the target picture database according to the extracted characteristic information of the target picture specified by the user and is used as the geographic position information corresponding to the target picture, blind retrieval in a large number of picture databases is not needed, the target database only needs to be retrieved in a targeted manner, the picture database needing to be retrieved is greatly reduced, and the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
In the above technical solution, preferably, the first processing unit includes: the second acquisition unit is used for acquiring the characteristic information of each picture; the comparison unit is used for comparing the characteristic information of the target picture with the characteristic information of each picture to obtain the similarity between the target picture and each picture; and the second determining unit is used for determining the picture matched with the target picture according to the similarity between the target picture and each picture.
In the technical scheme, the accuracy of the picture searching result is ensured by comparing the characteristic information of the target picture with the characteristic information of each picture and determining the picture matched with the target picture according to the similarity between the obtained target picture and each picture.
In any one of the above technical solutions, preferably, the second determining unit is specifically configured to: sequencing each picture according to the similarity between the target picture and each picture; and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
In the technical scheme, each picture is sequenced according to the similarity between the target picture and each picture, specifically, the pictures can be sequenced in a descending order, the picture which is sequenced at the forefront is the picture with the highest similarity with the target picture, of course, the pictures can also be sequenced in an ascending order, the picture which is sequenced at the last is the picture with the highest similarity with the target picture, and the picture with the highest similarity with the target picture is taken as the picture matched with the target picture, so that the accuracy of the finally determined geographic position information is ensured.
In any one of the above technical solutions, preferably, the method further includes: a creating unit configured to create a feature information library associated with the target database; and the second processing unit is used for extracting the characteristic information of each picture and storing the characteristic information of each picture and the geographical position information corresponding to each picture into the characteristic information base in an associated manner.
In the technical scheme, the characteristic information of each picture and the geographical position information corresponding to each picture are stored in the created characteristic information base associated with the target database in an associated manner, so that the characteristic information base can be directly called from the characteristic information base according to requirements, the characteristic information of each picture does not need to be extracted one by one in real time, and the identification efficiency of the whole geographical position information is further improved.
In any one of the above technical solutions, preferably, the method further includes: the device comprises a storage unit, a picture database and a processing unit, wherein the storage unit is used for pre-storing the association relationship between the unique identification information of each preset access point in a plurality of preset wireless access points and the picture database corresponding to each preset wireless access point; the first determining unit is specifically configured to search, in the association relationship, a picture database corresponding to the unique identification information of the wireless access point, and use the picture database as the target picture database.
In the technical scheme, the association relationship between the unique identification information of each preset access point and the picture database corresponding to each preset wireless access point is prestored, so that a precondition guarantee is provided for subsequently searching the target picture database, and the picture database corresponding to the unique identification information of the wireless access point is searched in the association relationship and is used as the target picture database, so that the accuracy of the searching result of the target picture database is ensured.
According to a third aspect of the present invention, there is also provided a terminal, comprising: the apparatus for identifying geographical location information according to any one of the above aspects.
Through the technical scheme, the picture database to be searched is reduced in the process of identifying the corresponding geographic position information based on the picture, so that the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
Drawings
Fig. 1 shows a schematic flow diagram of a method of identification of geographical location information according to an embodiment of the invention;
fig. 2 shows a schematic block diagram of an identification device of geographical location information according to an embodiment of the present invention;
fig. 3 shows a schematic block diagram of a terminal according to an embodiment of the invention.
DF
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a schematic flow chart of a method of identification of geographical location information according to an embodiment of the present invention.
As shown in fig. 1, the method for identifying geographical location information according to an embodiment of the present invention includes:
step 102, when a target picture specified by a user is received, extracting feature information of the target picture.
And 104, acquiring unique identification information of a wireless access point to which the terminal is currently accessed, and determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to the geographical position information.
According to the technical scheme, the unique identification information of the wireless access point which is accessed by the terminal at present is obtained, the target picture database is determined according to the unique identification information of the wireless access point, the picture matched with the target picture is inquired in the target picture database according to the extracted characteristic information of the target picture specified by the user and is used as the geographic position information corresponding to the target picture, blind retrieval in a large number of picture databases is not needed, the target database only needs to be retrieved in a targeted manner, the picture database needing to be retrieved is greatly reduced, and the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
In the above technical solution, preferably, the step of querying, according to the feature information of the target picture, a picture matched with the target picture in the target picture database specifically includes: acquiring characteristic information of each picture; comparing the characteristic information of the target picture with the characteristic information of each picture to obtain the similarity between the target picture and each picture; and determining the picture matched with the target picture according to the similarity between the target picture and each picture.
In the technical scheme, the accuracy of the picture searching result is ensured by comparing the characteristic information of the target picture with the characteristic information of each picture and determining the picture matched with the target picture according to the similarity between the obtained target picture and each picture.
In any one of the above technical solutions, preferably, the step of determining, according to the similarity between the target picture and each of the pictures, a picture matched with the target picture specifically includes: sequencing each picture according to the similarity between the target picture and each picture; and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
In the technical scheme, each picture is sequenced according to the similarity between the target picture and each picture, specifically, the pictures can be sequenced in a descending order, the picture which is sequenced at the forefront is the picture with the highest similarity with the target picture, of course, the pictures can also be sequenced in an ascending order, the picture which is sequenced at the last is the picture with the highest similarity with the target picture, and the picture with the highest similarity with the target picture is taken as the picture matched with the target picture, so that the accuracy of the finally determined geographic position information is ensured.
In any one of the above technical solutions, preferably, before the step of obtaining the feature information of each picture, the method further includes: creating a feature information base associated with the target database; extracting the characteristic information of each picture, and storing the characteristic information of each picture and the geographical position information corresponding to each picture into the characteristic information base in a correlation manner.
In the technical scheme, the characteristic information of each picture and the geographical position information corresponding to each picture are stored in the created characteristic information base associated with the target database in an associated manner, so that the characteristic information base can be directly called from the characteristic information base according to requirements, the characteristic information of each picture does not need to be extracted one by one in real time, and the identification efficiency of the whole geographical position information is further improved.
In any one of the above technical solutions, preferably, before the step of determining the target picture database according to the unique identification information of the wireless access point, the method further includes: pre-storing the association relationship between the unique identification information of each preset access point in a plurality of preset wireless access points and a picture database corresponding to each preset wireless access point; the step of determining the target picture database according to the unique identification information of the wireless access point specifically includes: and in the association relation, searching a picture database corresponding to the unique identification information of the wireless access point, and taking the picture database as the target picture database.
In the technical scheme, the association relationship between the unique identification information of each preset access point and the picture database corresponding to each preset wireless access point is prestored, so that a precondition guarantee is provided for subsequently searching the target picture database, and the picture database corresponding to the unique identification information of the wireless access point is searched in the association relationship and is used as the target picture database, so that the accuracy of the searching result of the target picture database is ensured.
Fig. 2 shows a schematic block diagram of an identification apparatus of geographical location information according to an embodiment of the present invention.
As shown in fig. 2, an apparatus 200 for identifying geographical location information according to an embodiment of the present invention includes: an extraction unit 202, a first acquisition unit 204, a first determination unit 206, and a first processing unit 208.
The extracting unit 202 is configured to, when a target picture specified by a user is received, extract feature information of the target picture; the first obtaining unit 204 is configured to obtain unique identification information of a wireless access point to which the terminal is currently accessed; the first determining unit 206 is configured to determine a target picture database according to the unique identification information of the wireless access point, where the target picture database includes a plurality of pictures corresponding to the geographic location information; the first processing unit 208 is configured to query, according to the feature information of the target picture, a picture matched with the target picture in the target picture database, and use the found geographic position information corresponding to the picture matched with the target picture as the geographic position information corresponding to the target picture.
According to the technical scheme, the unique identification information of the wireless access point which is accessed by the terminal at present is obtained, the target picture database is determined according to the unique identification information of the wireless access point, the picture matched with the target picture is inquired in the target picture database according to the extracted characteristic information of the target picture specified by the user and is used as the geographic position information corresponding to the target picture, blind retrieval in a large number of picture databases is not needed, the target database only needs to be retrieved in a targeted manner, the picture database needing to be retrieved is greatly reduced, and the identification efficiency is improved while the identification accuracy of the geographic position information is ensured.
In the above technical solution, preferably, the first processing unit 208 includes: a second obtaining unit 2082, configured to obtain feature information of each picture; a comparing unit 2084, configured to compare the feature information of the target picture with the feature information of each picture, so as to obtain a similarity between the target picture and each picture; a second determining unit 2086, configured to determine, according to the similarity between the target picture and each of the pictures, a picture matched with the target picture.
In the technical scheme, the accuracy of the picture searching result is ensured by comparing the characteristic information of the target picture with the characteristic information of each picture and determining the picture matched with the target picture according to the similarity between the obtained target picture and each picture.
In any one of the above technical solutions, preferably, the second determining unit 2086 is specifically configured to: sequencing each picture according to the similarity between the target picture and each picture; and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
In the technical scheme, each picture is sequenced according to the similarity between the target picture and each picture, specifically, the pictures can be sequenced in a descending order, the picture which is sequenced at the forefront is the picture with the highest similarity with the target picture, of course, the pictures can also be sequenced in an ascending order, the picture which is sequenced at the last is the picture with the highest similarity with the target picture, and the picture with the highest similarity with the target picture is taken as the picture matched with the target picture, so that the accuracy of the finally determined geographic position information is ensured.
In any one of the above technical solutions, preferably, the method further includes: a creating unit 210 configured to create a feature information library associated with the target database; the second processing unit 212 is configured to extract feature information of each picture, and store the feature information of each picture and geographical location information corresponding to each picture in the feature information base in an associated manner.
In the technical scheme, the characteristic information of each picture and the geographical position information corresponding to each picture are stored in the created characteristic information base associated with the target database in an associated manner, so that the characteristic information base can be directly called from the characteristic information base according to requirements, the characteristic information of each picture does not need to be extracted one by one in real time, and the identification efficiency of the whole geographical position information is further improved.
In any one of the above technical solutions, preferably, the method further includes: a storage unit 214, configured to pre-store an association relationship between unique identification information of each preset access point in a plurality of preset wireless access points and a picture database corresponding to each preset wireless access point; the first determining unit 206 is specifically configured to search, in the association relationship, a picture database corresponding to the unique identification information of the wireless access point, and use the picture database as the target picture database.
In the technical scheme, the association relationship between the unique identification information of each preset access point and the picture database corresponding to each preset wireless access point is prestored, so that a precondition guarantee is provided for subsequently searching the target picture database, and the picture database corresponding to the unique identification information of the wireless access point is searched in the association relationship and is used as the target picture database, so that the accuracy of the searching result of the target picture database is ensured.
Fig. 3 shows a schematic block diagram of a terminal according to an embodiment of the invention.
As shown in fig. 3, a terminal 300 according to an embodiment of the present invention includes: such as the identification means 200 of geographical location information shown in fig. 2.
The technical solution of the present invention is further explained below.
In this embodiment, a Wi-Fi positioning function is first used to obtain an image library (i.e., a picture database) corresponding to a Wi-Fi Access Point (AP, Access Point), so as to obtain related data in a feature library (i.e., a feature information library) included in the image library, and then a photo taken by a user is compared with data in the feature library, so as to accurately identify corresponding geographic location information, and the specific implementation process includes:
1. a Wi-Fi hotspot table is created, and the global unique ID (namely, the unique identifier of the wireless access point) of the AP and the geographic position information thereof are sorted and stored, and the related key field information is shown in the following table 1:
TABLE 1
2. Creating an image library table, wherein the key field information involved in the creation process is shown in the following table 2:
TABLE 2
3. And maintaining Wi-Fi hotspot information of each image library.
4. Creating a characteristic library table, wherein the key field information involved in the creation process is shown in the following table 3:
TABLE 3
5. And (3) extracting the features of the picture, adding the extracted feature vector (namely feature information) into a corresponding feature library, and maintaining corresponding geographic position information. Specifically, feature extraction is performed on each feature point of each picture to obtain a plurality of sets of feature vectors. For example: analyzing a picture according to colors, replacing the color with vector values to obtain feature vectors of the colors, and then extracting features such as shapes and textures to obtain multiple groups of feature vectors of the picture, wherein the multiple groups of feature vectors form a feature library of the picture, the feature libraries of multiple pictures form an image library, and each picture can only correspond to one feature library or multiple feature libraries generally, but one feature library can only correspond to one picture.
6. Establishing a corresponding relation between an image library and a feature library, wherein key field information involved in the establishing process is shown in the following table 4:
TABLE 4
7. And acquiring the global unique ID of the Wi-Fi connected with the user mobile equipment, and retrieving to obtain a corresponding image library according to the ID of the Wi-Fi.
8. And extracting the feature vectors of the pictures shot and uploaded by the user, searching in a feature library contained in the image library, and sequencing according to the similarity from high to low to obtain the picture with the highest similarity.
9. And finally obtaining the geographical position information maintained by the feature library. Specifically, the finally determined geographical position information error can be reduced to be within 1 meter.
The method can be particularly applied to various use scenes, such as: the tourist city A has a plurality of places of interest, and has a large tourist attraction 1 and a tourist attraction 2. An image library of city a is created that includes, but is not limited to, a sub-image library of scenic spot 1 and scenic spot 2. And the geographical information of the city A is perfected by maintaining and expanding the sub-image library and the image library. And at the moment, the user in the scenic spot 1 uploads the shot picture to the system, the geographical area where the user is located according to the Wi-Fi hot spot connected with the user mobile equipment, the image library of the scenic spot 1 to be searched is obtained, the feature library with the highest similarity to the picture feature group is obtained through recognition, and accurate recognition is finally realized according to the geographical position information maintained by the picture corresponding to the feature library.
The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and provides a new identification scheme of geographical location information, so that in the process of identifying the corresponding geographical location information based on pictures, the picture database to be retrieved is reduced, the accuracy of geographical location information identification is ensured, and meanwhile, the identification efficiency is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method for recognizing geographic position information is characterized by comprising the following steps:
when a target picture specified by a user is received, extracting characteristic information of the target picture;
acquiring unique identification information of a wireless access point to which a terminal is currently accessed, and determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to geographical position information;
and inquiring the picture matched with the target picture in the target picture database according to the characteristic information of the target picture, and taking the found geographical position information corresponding to the picture matched with the target picture as the geographical position information corresponding to the target picture.
2. The method for identifying geographical location information according to claim 1, wherein the step of querying the target picture database for the picture matching the target picture according to the feature information of the target picture specifically includes:
acquiring characteristic information of each picture;
comparing the characteristic information of the target picture with the characteristic information of each picture to obtain the similarity between the target picture and each picture;
and determining the picture matched with the target picture according to the similarity between the target picture and each picture.
3. The method for identifying geographical location information according to claim 2, wherein the step of determining the picture matching the target picture according to the similarity between the target picture and each picture specifically includes:
sequencing each picture according to the similarity between the target picture and each picture;
and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
4. The method for identifying geographical location information according to claim 2, further comprising, before the step of obtaining the feature information of each of the pictures:
creating a feature information base associated with the target database;
extracting the characteristic information of each picture, and storing the characteristic information of each picture and the geographical position information corresponding to each picture into the characteristic information base in a correlation manner.
5. The method for identifying geographical location information according to any one of claims 1 to 4, further comprising, before the step of determining a target picture database according to the unique identification information of the wireless access point:
pre-storing the association relationship between the unique identification information of each preset access point in a plurality of preset wireless access points and a picture database corresponding to each preset wireless access point;
the step of determining the target picture database according to the unique identification information of the wireless access point specifically includes:
and in the association relation, searching a picture database corresponding to the unique identification information of the wireless access point, and taking the picture database as the target picture database.
6. An apparatus for recognizing geographical position information, comprising:
the device comprises an extraction unit, a processing unit and a display unit, wherein the extraction unit is used for extracting the characteristic information of a target picture when the target picture specified by a user is received;
the first acquisition unit is used for acquiring the unique identification information of the wireless access point to which the terminal is currently accessed;
the first determining unit is used for determining a target picture database according to the unique identification information of the wireless access point, wherein the target picture database comprises a plurality of pictures corresponding to the geographic position information;
the first processing unit is configured to query, according to the feature information of the target picture, a picture matched with the target picture in the target picture database, and use the found geographic position information corresponding to the picture matched with the target picture as the geographic position information corresponding to the target picture.
7. The apparatus for identifying geographical location information of claim 6, wherein the first processing unit comprises:
the second acquisition unit is used for acquiring the characteristic information of each picture;
the comparison unit is used for comparing the characteristic information of the target picture with the characteristic information of each picture to obtain the similarity between the target picture and each picture;
and the second determining unit is used for determining the picture matched with the target picture according to the similarity between the target picture and each picture.
8. The apparatus for identifying geographical location information of claim 7, wherein the second determining unit is specifically configured to:
sequencing each picture according to the similarity between the target picture and each picture;
and taking the picture with the highest similarity with the target picture as the picture matched with the target picture.
9. The apparatus for identifying geographical location information of claim 7, further comprising:
a creating unit configured to create a feature information library associated with the target database;
and the second processing unit is used for extracting the characteristic information of each picture and storing the characteristic information of each picture and the geographical position information corresponding to each picture into the characteristic information base in an associated manner.
10. The apparatus for identifying geographical location information according to any one of claims 6 to 9, further comprising:
the device comprises a storage unit, a picture database and a processing unit, wherein the storage unit is used for pre-storing the association relationship between the unique identification information of each preset access point in a plurality of preset wireless access points and the picture database corresponding to each preset wireless access point;
the first determining unit is specifically configured to search, in the association relationship, a picture database corresponding to the unique identification information of the wireless access point, and use the picture database as the target picture database.
11. A terminal, comprising:
identification means of geographical location information as claimed in any one of claims 6 to 10.
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