CN102080963A - Method and device for establishing incidence relation between point of interest and image corresponding to point of interest - Google Patents
Method and device for establishing incidence relation between point of interest and image corresponding to point of interest Download PDFInfo
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- CN102080963A CN102080963A CN2009102412791A CN200910241279A CN102080963A CN 102080963 A CN102080963 A CN 102080963A CN 2009102412791 A CN2009102412791 A CN 2009102412791A CN 200910241279 A CN200910241279 A CN 200910241279A CN 102080963 A CN102080963 A CN 102080963A
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Abstract
The invention provides a method and device for establishing an incidence relation between a point of interest and an image corresponding to the point of interest. The image of the point of interest, related to the point of interest, exists in the method. The method comprises the steps of: 1, acquiring position information of the point of interest, wherein the point of interest is a site photographic field in the real world; 2, carrying out coding conversion on the position information to generate corresponding geographic codes; and 3, establishing the incidence relation between the image of the point of interest and the geographic codes. By applying the technology provided by the embodiment of the invention, because the incidence relation exists between the point of interest and the geographic codes, the searching and managing efficiency of the image of the point of interest is improved, wherein the image of the point of interest is generally a digital picture in an electronic navigation map technology.
Description
Technical field
The present invention relates to the map of navigation electronic technology, be meant a kind of method and apparatus of setting up the incidence relation between point of interest and corresponding point of interest image especially.
Background technology
In the map of navigation electronic technology, point of interest (Point of Interest is called for short POI) is meant that the user wishes the place of understanding or preparing to arrive, for example restaurant, hotel, supermarket, mansion etc.When the user drives, can on navigating instrument, point of interest be made as the destination,, can arrive and expect the place that reaches according to the navigation circuit that navigating instrument calculates.In recent years, owing to developing rapidly of urban construction, map datum makes rapid progress in the city, and the user constantly increases the demand of POI information accuracy, seems particularly important so the ability of POI information is accurately gathered by electronic chart manufacturer.
At present, can gather the POI image at the scene usually when the collection personnel gather POI, gather the information such as position, title of POI simultaneously, the POI positional information is recorded in the name of pictures, as the reference of later stage authorization information correctness.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention: utilize the information such as position, title of POI to retrieve fast and effectively by comparison film, and be not easy to manage photo.
Summary of the invention
The purpose of this invention is to provide a kind of method and apparatus of setting up the incidence relation between point of interest and corresponding point of interest image, be used for solving prior art, utilize the information such as position, title of POI to retrieve fast and effectively by comparison film, be not easy to manage the defective of photo.
There is the point of interest image about point of interest in a kind of method of setting up the incidence relation between point of interest and the corresponding point of interest image, comprising: step 1, and the positional information of gathering described point of interest, described point of interest is the place scenery in the real world; Step 2 is carried out code conversion to described positional information and is generated corresponding geocoding; Step 3 is set up the incidence relation between described point of interest image and the described geocoding.
In the said method, a coordinate system is divided, formed the rectangular area of a plurality of long spacing R and column pitch L, the corresponding row of the long spacing of each rectangular area number, corresponding row of column pitch number; Described geocoding is 6 bit digital rrrlll, and wherein, rrr and lll represent the pairing row in rectangular area, point of interest place number and row number respectively, and its computing method are as follows: rrr=Int[(X-X
0)/R]+1, lll=Int[(Y-Y
0)/L]+1, wherein, (X
0, Y
0) be the origin coordinates of coordinate system, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest, and above-mentioned formula comprises rounding operation.
In the said method, described coordinate is a rectangular coordinate system; To be laid in this rectangular coordinate system with the regional corresponding map, and occupy a plurality of rectangular areas in this rectangular coordinate system.
In the said method, the incidence relation between point of interest image and the described geocoding comprises: when described point of interest image was retrieved, described geocoding can be used as one of search condition.
In the said method, step 3 specifically comprises: the filename form that the point of interest image is set is an A_B_C_D_E. suffix form, and wherein each field is represented: field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, mm represents month, and dd represents the date; Field B is the classification coding, the classification of point of interest in the sign photo; Field C is 6 geocodings; Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times; Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.
In the said method, adopt digital camera to obtain digital photograph as described point of interest image.
A kind of device of setting up the incidence relation between point of interest and the corresponding POI image comprises: locating module, and the positional information that is used to gather point of interest, described point of interest is the place scenery in the real world; And there is point of interest image about described point of interest; The code conversion module is used for that described positional information is carried out code conversion and generates corresponding geocoding; The information fusion module is used to set up the incidence relation between described point of interest image and the described geocoding.
In the said method, the code conversion module is specially: the coordinate corresponding unit is used for obtaining at a coordinate system that is divided in advance the described geocoding of described positional information correspondence; In the described coordinate system that is divided in advance, be formed with all consistent rectangular areas of a plurality of long spacing R and column pitch L, the corresponding row of the long spacing of each rectangular area number, corresponding one of column pitch is listed as number; Described geocoding is 6 bit digital rrrlll, and wherein, rrr and lll represent the pairing row in rectangular area, point of interest place number and row number respectively, and its computing method are as follows: rrr=Int[(X-X
0)/R]+1, lll=Int[(Y-Y
0)/L]+1, wherein, (X
0, Y
0) be graticule mesh lower left corner coordinate, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest, and above-mentioned formula comprises rounding operation.
In the said apparatus, also comprise: retrieval is provided with the unit, is used for described geocoding and is set to: one of search condition that can be used to when described point of interest image is retrieved.
In the said apparatus, also comprise: the image setting unit, the filename form that is used to be provided with the point of interest image is an A_B_C_D_E. suffix form, wherein each field is represented: field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, mm represents month, dd represents the date; Field B is the classification coding, the classification of point of interest in the sign photo; Field C is 6 geocodings; Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times; Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.
Use the technology that the embodiment of the invention provides,, therefore improved the retrieval and the efficiency of management the POI image owing to have incidence relation between described point of interest and the described geocoding.
Description of drawings
Fig. 1 sets up the method flow synoptic diagram of the incidence relation between point of interest and the corresponding point of interest image for the present invention;
The geographic coordinate system synoptic diagram that Fig. 2 uses for code conversion of the present invention;
Fig. 3 is an embodiment of the invention apparatus structure synoptic diagram one;
Fig. 4 is an embodiment of the invention apparatus structure synoptic diagram two;
Fig. 5 adopts quadtree coding as the applied geographic coordinate system synoptic diagram of code conversion for the present invention.
Embodiment
For making purpose of the present invention, technical characterictic and implementation result clearer, below in conjunction with the accompanying drawings and the specific embodiments technical scheme of the present invention is described in detail.Among the embodiment provided by the invention, obtain the POI positional information of photo, and this POI positional information is carried out code conversion generation geocoding, geocoding is recorded in the name of pictures, between POI and photo, set up incidence relation.
The embodiment of the invention provides a kind of method of setting up the incidence relation between point of interest and the corresponding POI image, as shown in Figure 1, comprising:
Existence is about the POI image of point of interest;
Use the technology that the embodiment of the invention provides,, therefore improved the retrieval and the efficiency of management the POI image owing to have incidence relation between described point of interest and the described geocoding.Wherein, in the map of navigation electronic technology, the POI image typically refers to digital photograph.
For helping the technician further to understand technical scheme, the invention provides following examples, wherein, the POI image specifically is that digital photograph comprises:
In the step 101, the positional information of gathering point of interest comprises:
The positioning function that carries by digital camera or by means of other utility appliance is obtained the positional information of point of interest.At present a lot of camera manufacturers as the camera that Canon, Nikon, patriot etc. all provide built-in GPS function, therefore can select the digital camera of suitable style according to accuracy requirement.
In the step 102, code conversion specifically comprises:
Step a, classification coding, the classification of input POI is sought the code of current POI corresponding class automatically in the Sort Code storehouse, be CG01 as the Sort Code in restaurant.
Step b, time encoding is obtained the time of gathering digital photograph, carries out 8 bit times coding, as on August 20th, 2009, then is encoded to 20090820.
Step c, code conversion, the WGS84 latitude and longitude coordinates that GPS is received (B, L, H) be converted into the Gaussian plane rectangular coordinate (X, Y), under geographic coordinate system as shown in Figure 2, code conversion is carried out in the POI position:
Among Fig. 2, a coordinate system is divided, formed all consistent rectangular areas of a plurality of long spacing R and column pitch L, the corresponding row of the long spacing of each rectangular area number, corresponding one of column pitch is listed as number;
Geocoding is 6 bit digital rrrlll, and wherein, rrr and lll represent the pairing row in rectangular area, point of interest place number and row number respectively, and ranks number from left to right increase from the bottom up successively, and its computing method are as follows:
rrr＝Int[(X-X
0)/R]+1
lll＝Int[(Y-Y
0)/L]+1，
Wherein, (X
0, Y
0) be graticule mesh lower left corner coordinate, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest.Traditionally, the coordinate system after dividing is called graticule mesh, a rectangular area then is a grid.
In the step 103, set up the incidence relation between described point of interest and the described geocoding, further comprise: the api function that utilizes digital camera to provide carries out the plug-in exploitation, and the information such as geocoding with POI are recorded in the filename of photo automatically, realizes the fusion of POI information and photo.Particularly, the filename form of POI image is an A_B_C_D_E suffix form, and wherein each field is represented implication:
Field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, and mm represents month, dd represents the date;
Field B is the classification coding, and the classification of POI in the sign photo is as the Sort Code CG01 in restaurant;
Field C is 6 geocodings;
Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times;
Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.Select to amplify 86400=3600*24 reason doubly and be that the circumference of one the 360 ° expression earth can be divided into 24 time zones, and, 1 °=3600 seconds, therefore amplify 86400 times to make things convenient for Computer Processing; Perhaps be the convenience of calculating, also can select other enlargement factor.
The suffix form specifically can be the form of various digital pictures, for example JPG, BMP etc.
In the foregoing description, when POI was taken pictures, the GPS module of utilizing camera to carry was obtained the POI positional information, and carries out geocoding by robotization module location information, then coded message is recorded in the name of pictures, realizes the auto-associating of POI and photo.
In the process of management retrieval photo, need comparison film to resolve, specifically:
Field A represents the POI acquisition time, can be used to comparison film and carries out retrieval of branch version and management;
Field B represents the POI class code, can be used to comparison film and carries out sub-category retrieval and management;
Field C represents the geographical zone number in POI place;
Field D, E can resolve the WGS84 coordinate of POI, can be used to carry out related to POI with corresponding photo.
Accordingly, the invention provides a kind of device of setting up the incidence relation between point of interest and the corresponding POI image, have original POI image about point of interest; As shown in Figure 3, comprising:
Locating module 301, the positional information that is used to gather described point of interest, described point of interest is the place scenery in the real world;
Use the technology that the embodiment of the invention provides,, therefore improved the retrieval and the efficiency of management the POI image owing to have incidence relation between described point of interest and the described geocoding.
Wherein, in the map of navigation electronic technology, the POI image typically refers to digital photograph.
In the technique scheme,, as shown in Figure 4, also comprise for obtaining the POI image:
The point of interest image collection module is used for obtaining described POI image by different modes.For example adopt digital camera to take the digital photograph of point of interest position.
rrr＝Int[(X-X
0)/R]+1
lll＝Int[(Y-Y
0)/L]+1，
Wherein, (X
0, Y
0) be graticule mesh lower left corner coordinate, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest, and above-mentioned formula comprises rounding operation.
The code conversion mode that forms geocoding can adopt different replacement schemes, as adopt quadtree coding, specifically comprise: at first whole geographic area, for example the pairing map of regional is divided into four zones, and these four zones have covered whole geographic area; Then each zone subdivision in four zones is slit into four sub regions, so recursively cuts apart, each subregion after cutting apart satisfies line space and the column pitch of predesignating.As shown in Figure 5, in coordinate system, whole geographic area is divided into subregion 0, subregion 1, subregion 2 and subregion 3, does not predesignate, therefore need cut apart once more each subregion because the line space of each sub regions and/or column pitch do not satisfy.After cutting apart once more, subregion 0 is divided into accordingly: subregion 00, subregion 01, subregion 02 and subregion 03; In like manner, subregion 1 is divided into accordingly: subregion 10, subregion 11, subregion 12 and subregion 13, other subregions 2 and subregion 3 are also cut apart accordingly.Predesignate if the line space of subregion 00 grade after judgement is cut apart and column pitch satisfy, then no longer cut apart.The geographic area finally is divided into the N layer, and then its ranks coding just has the N position, and sets each numeral in the coding 0,1, and selected in 2,3, if for example subregion 00 is cut apart once more, the coding of then cutting apart the subregion of back next stage is respectively 000,001,002 and 003.
The above-mentioned code conversion mode that adopts also is not used in qualification implementation of the present invention, also can adopt other ranks conversion regime with the geocoding as described positional information.
Also comprise in the device:
Retrieval is provided with the unit, is used for described geocoding and is set to: one of search condition that can be used to when described point of interest image is retrieved.
Field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, and mm represents month, dd represents the date;
Field B is the classification coding, the classification of point of interest in the sign photo;
Field C is 6 geocodings;
Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times;
Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.
Usually adopt digital camera to obtain digital photograph as described point of interest image.
When needs are retrieved and managed according to point of interest the POI image, need to adopt a parsing module; Parsing module is connected with information fusion module 303, perhaps is connected with the storage unit of depositing the point of interest image, is used for the POI image is resolved, and obtains positional information.Specifically:
Field A represents the POI acquisition time, can be used to comparison film and carries out retrieval of branch version and management;
Field B represents the POI class code, can be used to comparison film and carries out sub-category retrieval and management;
Field C represents the geographical zone number in POI place;
Field D, E can resolve the WGS84 coordinate of POI, can be used to carry out related to POI with corresponding photo.
Embodiments of the invention have following beneficial effect, when point of interest POI is obtained original POI image, obtain the positional information of POI, location information is carried out code conversion and is generated geocoding, then geocoding is recorded in and generates the POI image in the title of original POI image, set up the incidence relation between POI and the original POI image, like this then provide original photo foundation for the information acquisition of POI, by geocoding is recorded in the POI image automatically, improved the work efficiency of gathering the POI image; By the POI image is carried out geocoding, improved the retrieval and the efficiency of management of POI image.
Should be noted that above embodiment is only unrestricted in order to technical scheme of the present invention to be described, all parameter values can be according to the actual conditions adjustment, and in this rights protection scope.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spiritual scope of technical solution of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. a method of setting up the incidence relation between point of interest and the corresponding point of interest image is characterized in that, has the point of interest image about point of interest, comprising:
Step 1, the positional information of gathering described point of interest, described point of interest is the place scenery in the real world;
Step 2 is carried out code conversion to described positional information and is generated corresponding geocoding;
Step 3 is set up the incidence relation between described point of interest image and the described geocoding.
2. method according to claim 1 is characterized in that, a coordinate system is divided, and forms the rectangular area of a plurality of long spacing R and column pitch L, the corresponding row of the long spacing of each rectangular area number, corresponding row of column pitch number;
Described geocoding is 6 bit digital rrrlll, and wherein, rrr and lll represent the pairing row in rectangular area, point of interest place number and row number respectively, and its computing method are as follows:
rrr＝Int[(X-X
0)/R]+1
lll＝Int[(Y-Y
0)/L]+1，
Wherein, (X
0, Y
0) be the origin coordinates of coordinate system, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest, and above-mentioned formula comprises rounding operation.
3. method according to claim 2 is characterized in that described coordinate is a rectangular coordinate system; To be laid in this rectangular coordinate system with the regional corresponding map, and occupy a plurality of rectangular areas in this rectangular coordinate system.
4. method according to claim 1 is characterized in that, the incidence relation between point of interest image and the described geocoding comprises:
When described point of interest image was retrieved, described geocoding can be used as one of search condition.
5. method according to claim 3 is characterized in that step 3 specifically comprises:
The filename form that the point of interest image is set is an A_B_C_D_E. suffix form, and wherein each field is represented:
Field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, and mm represents month, dd represents the date;
Field B is the classification coding, the classification of point of interest in the sign photo;
Field C is 6 geocodings;
Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times;
Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.
6. method according to claim 1 is characterized in that,
Adopt digital camera to obtain digital photograph as described point of interest image.
7. a device of setting up the incidence relation between point of interest and the corresponding POI image is characterized in that, comprising:
Locating module, the positional information that is used to gather point of interest, described point of interest is the place scenery in the real world; And there is point of interest image about described point of interest;
The code conversion module is used for that described positional information is carried out code conversion and generates corresponding geocoding;
The information fusion module is used to set up the incidence relation between described point of interest image and the described geocoding.
8. device according to claim 7 is characterized in that, the code conversion module is specially:
The coordinate corresponding unit is used for obtaining at a coordinate system that is divided in advance the described geocoding of described positional information correspondence;
In the described coordinate system that is divided in advance, be formed with all consistent rectangular areas of a plurality of long spacing R and column pitch L, the corresponding row of the long spacing of each rectangular area number, corresponding one of column pitch is listed as number;
Described geocoding is 6 bit digital rrrlll, and wherein, rrr and lll represent the pairing row in rectangular area, point of interest place number and row number respectively, and its computing method are as follows:
rrr＝Int[(X-X
0)/R]+1
lll＝Int[(Y-Y
0)/L]+1
Wherein, (X
0, Y
0) be graticule mesh lower left corner coordinate, X is the horizontal ordinate of point of interest, Y is the ordinate of point of interest, and above-mentioned formula comprises rounding operation.
9. device according to claim 7 is characterized in that, also comprises:
Retrieval is provided with the unit, is used for described geocoding and is set to: one of search condition that can be used to when described point of interest image is retrieved.
10. device according to claim 7 is characterized in that, also comprises:
The image setting unit, the filename form that is used to be provided with the point of interest image is an A_B_C_D_E. suffix form, wherein each field is represented:
Field A is photo acquisition date codes yyyymmdd, the yyyy expression of years, and mm represents month, dd represents the date;
Field B is the classification coding, the classification of point of interest in the sign photo;
Field C is 6 geocodings;
Field D=3600*24*X, wherein, D is an integer, is the numerical value after X is amplified 86400 times;
Field E=3600*24*Y, wherein, E is an integer, is the numerical value after Y is amplified 86400 times.
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| CN109543661A (en) * | 2018-12-28 | 2019-03-29 | 北京隆恩智慧科技有限公司 | Focus information auto-integration system and focus automatic acquisition of scientific information method based on voice auxiliary |
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