CN101619976A - Position positioning retrieval device and method - Google Patents
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Abstract
The invention provides a position positioning retrieval device and a position positioning retrieval method. The device comprises a spatial retrieval information module for acquiring spatial retrieval information of a current position in a three-dimensional space, an image acquisition module for acquiring focusing range information in a current focusing range and intercepting a scene in the focusing range to form a selected image according to the spatial retrieval information, a map data query module for searching map data accordant with the spatial retrieval information and the focusing range information according to the spatial retrieval information and the focusing range information, and a description information projection module for projecting the map data obtained by the map data query module onto the selected image. Due to the application of the technology provided by the invention, expensive unit modules are not adopted any longer, thus the cost of the retrieval device is reduced and further the retrieval device is favorably popularized; and at the same time, display granularities of the position information and the position description information are regulated according to the focusing range, so that clear and accurate position information and position description information of the surrounding scenes are timely and conveniently provided to users and the experiences of the users are enhanced.
Description
Technical field
The present invention relates to the location positioning technology, be meant a kind of position positioning retrieval device and method especially.
Background technology
The expansion that goes out line range along with people at present becomes more and more to the needs of position location technology, and the user is uncertain of under the prerequisite of destination at a new environment, is very loaded down with trivial details and difficult thing.
In the prior art, usually adopt GPS (GPS, Global Positioning System) positions service, because the restriction of GPS equipment display capabilities, the user needs the many groups of definition keyword accurately, the data library module is inquired about, and manual the selection just can obtain possible alternate information.But because the input and the restriction of user search ability, make that seek peripheral object becomes very time-consuming and a job that needs skill comprehensively.And have a considerable amount of users can not use map, near some zones the time, when particularly target was blocked, the also very difficult clear and definite position of finding required place made the user often can't obtain the details of the periphery of current region.
Also have at present some manufacturers that the database module of three-dimensional map is provided, the database module by three-dimensional map provides the detailed description to user's periphery scene.Need service end to carry out the input of flood tide but set up so full three-dimensional description, and very high to the requirement of the configuration standard of terminal device, cause with high costs.
Summary of the invention
The purpose of this invention is to provide a kind of position positioning retrieval device and method, be used for solving prior art, realize the with high costs of location positioning, be difficult to large-scale application, and the defective that clear positional information accurately and conveniently and peripheral scene information can't be provided for the user.
A kind of position positioning retrieval device comprises: the spatial retrieval information module is used to obtain the spatial retrieval information in three-dimensional current location place, position positioning retrieval device place; Image collection module is used to obtain the focusing range information in the current focusing range of described position positioning retrieval device, and forms selected digital image according to the scene in the described focusing range of described spatial retrieval information interception; The map datum enquiry module is used for the map datum according to described spatial retrieval information and described focusing range information searching and described spatial retrieval information and described focusing range information conforms; The descriptor projection module is used for the described map datum that described map datum enquiry module obtains is projected in above the described selected digital image.
A kind of location positioning search method comprises: obtain the spatial retrieval information in position positioning retrieval device current location place, obtain the focusing range information of described position positioning retrieval device; Form selected digital image according to the scene in the described focusing range of described spatial retrieval information interception; Map datum according to described spatial retrieval information and described focusing range information searching and described spatial retrieval information and described focusing range information conforms; Described map datum is projected in above the described selected digital image.
Use the technology that the preferred embodiment of the present invention provides, no longer adopt expensive unit module, having reduced cost is beneficial to universal, simultaneously, adjust the demonstration granularity of positional information and location expression information according to focusing range, the positional information and the location expression information of clear and accurate periphery scene are provided for the user timely and conveniently, have strengthened user's experience.
Description of drawings
Fig. 1 is a preferred embodiment of the present invention position positioning retrieval device structural representation;
Fig. 2 is the image collection module structural representation of preferred embodiment of the present invention position positioning retrieval device;
Fig. 3 is the synoptic diagram of preferred embodiment of the present invention three-dimensional scenic projection in selected digital image;
Fig. 4 is a preferred embodiment of the present invention principle of work schematic flow sheet;
Fig. 5 is a preferred embodiment of the present invention directional perception module principle of work synoptic diagram.
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.
The present invention proposes a kind of mode of technical solution cheaply, map datum and user's current shooting picture or vision signal are made up stack intuitively, therefore the user can obtain the detailed description of current location place periphery scene, further, the scope of searching is dwindled in the change of the focal length by camera, helps the user accurately to locate.
As shown in Figure 1, be the preferred embodiment of a kind of position positioning retrieval device among the present invention, comprising:
Locating module 101, the current location place that is used to obtain position positioning retrieval device promptly obtains the three-dimensional coordinate in current location place; The mode of obtaining three-dimensional coordinate can comprise multiple mode, for example:
Longitude and latitude, highly;
Perhaps the zone is being carried out on the basis of dividing, three-dimensional coordinate is expressed as horizontal ordinate, ordinate and height.
Particularly, comprise the GPS positioning unit on the position positioning retrieval device, receive signal, obtain the three-dimensional coordinate in current location place from gps satellite; Perhaps comprise, the Galileo receiving element, Big Dipper receiving element, (WIFI, the WirelessFidelity) positioning unit of the wireless network of technology and based on the positioning unit of 3G wireless network all can realize obtaining the current location place based on Wireless Fidelity.
Described predetermined direction can be by the functional unit acquisition that is used for determining direction of compass and so on;
Described viewing area as shown in Figure 5, position positioning retrieval device is positioned at the O point, the sector region aOb or the sector region cOd that photograph of the camera that carries of position positioning retrieval device normally, the size of this sector region is by the current focal range of camera, and aperture size and focusing are determined.Cooperate with the device location angle of position positioning retrieval device, can calculate the center line of this sector region and the angle of described predetermined direction, this angle is described deflection.Position positioning retrieval device can be by place, current position and focusing apart from the inquiry map data base, obtain the target location coordinate in the scene in the appointed area, pass through the angle that calculated target positions coordinate and place, the current position of position positioning retrieval device form then, and judge the deflection inside whether this angle is set.Also can calculate the diverse location of inquiring about map data base and put the deflection of current position point, and judge that further whether location point is in described selected digital image inside by current position point of device and deflection.
Spatial retrieval information module 107, described locating module 101 and directional perception module 102 can integrate, and as spatial retrieval information module 107, are used to obtain three-dimensional coordinate and deflection as spatial retrieval information.
Described selected digital image is part or all of viewing area, and the detailed process that forms selected digital image comprises: focusing range when image collection module 103 control cameras are determined focal length, control aperture scale; Converse depth of view information according to focusing range and aperture scale, determine further that according to depth of view information the focusing range information of scene is determined selected digital image.
The depth of field can be from tens centimetres to the infinite distance.
User profile input interface unit 1032 is used to receive the set information of input; Described set information comprises at least: the class categories information of the scene in described current location place.At this moment, map datum enquiry module 104 is according to spatial retrieval information and user preset information, the database in the retrieve data library module 106.
Map datum enquiry module 104, according to spatial retrieval information, user preset information from spatial retrieval information module 107, map data base in the data library module 106 and location database are retrieved, found location expression information, positional information and the two-dimensional map picture of current location place periphery scene by matching inquiry.
User preset information inquiry classification is meant the location expression type information of inquiry map data base, such as the hotel, and restaurant, hotel, refuelling station, bus stop, classification information such as shop.
Selected digital image is the two dimensional image that projection forms, and comprises recording/real-time pictures during preview that the still image of digital photograph and picture and video recording are to the extended description of current scene.
In order to realize that positional information with three-dimensional is converted to the two-dimensional coordinate roughly in the two-dimentional selected digital image, descriptor projection module 105 further comprises:
The three dimensional local information converting unit is used for three-dimensional described position coordinates is converted to the pixel coordinate of two-dimensional space; When three dimensions is converted to the two-dimensional space projection, can use 3 * 3 non-singular matrix mode to realize, the parameter of determining the projection plane of non-singular matrix by the deflection and the focusing range information of position positioning retrieval device, with the location point coordinate conversion is three-dimensional coordinate, and and this non-singular matrix multiply each other, obtain the two-dimensional space coordinate of projection.When location point is latitude and longitude coordinates, can earlier longitude and latitude be converted into the sphere three-dimensional coordinate, and repeats said process.
Obtain the three-dimensional coordinate of described position positioning retrieval device simultaneously, and obtain target location coordinate in the described selected digital image scene one by one, calculate the air line distance of described position positioning retrieval device and target location, and with this distance as parameter, determine to be projected in the particular content and the prompting mode of the described map datum above the described selected digital image.As shown in Figure 3, the left side of figure is the A of hotel, the B of hotel, the C of hotel and the D of hotel that is arranged in three dimensions, after projection, then is arranged in the A of hotel, the B of hotel, the C of hotel and the D of hotel of the selected digital image of two dimension.This moment is according to the distance of the diverse location point of current position point of device and map data base, the display mode of the location expression information of this location point can be set when front focal length and default display condition, such as opening/hide demonstration, font size, font color, latitude and longitude coordinates and display message prompting.
Specifically comprise, the positional information of three-dimensional is projected to concrete pixel in the two-dimentional selected digital image; Will and position positioning retrieval device between distance be converted to demonstration critical condition.
Determine that according to described demonstration critical condition scene shows or do not show in selected digital image, different fonts size during demonstration and color etc. are to make things convenient for the scene of distinguish different distance;
Simultaneously all or part of content of location expression information is presented at the two-dimensional coordinate in the two-dimentional selected digital image; Distance according to the diverse location point of current device position point and map data base, when front focal length and default display condition can be provided with the display mode of this location point location expression information, such as opening/hide demonstration, font size, font color, latitude and longitude coordinates and display message prompting.If the scene in the selected digital image is not comprised any location expression information, then should not be in and carry out the display position descriptor on the displayed scene
Storage medium is provided with map data base usually, and described map data base also can be kept on the private server of Map Services provider, and position positioning retrieval device connected by network and inquired about and updating map data this moment.
Corresponding with above-mentioned position positioning retrieval device, the present invention also provides a kind of location positioning search method, as shown in Figure 4, specifically comprises:
Focusing range information is that the camera of described position positioning retrieval device carries out defocused formed range of video at current time.
Map data base and location database can be same databases, can be different databases for convenient management also.
The retrieve position database can only obtain to meet in the described positioning retrieval device certain distance of distance (judging according to depth of view information) positional information of class categories, calculate the angle and the distance of location point in described positioning retrieval device and the result for retrieval this moment by described positioning retrieval device, and and the deflection of described positioning retrieval device compare, judge that further result for retrieval is whether in the current display area inside of described positioning retrieval device.
Whether step 409. judges in the described result for retrieval deposit position descriptor, changes step 410 if exist, otherwise changes step 412.
Described target range comprises: the control camera carries out zoom when determining focal length, and the control aperture scale; Converse depth of view information according to aperture scale, further determine the target range of the scene in the selected digital image according to this depth of view information.
More than described the principle of work of the inventive method, technology of the present invention is mainly used in the various places that accurate location and current scene information need be provided for the user, comprising:
Position positioning retrieval device is as the in-vehicle navigation apparatus in the various automobiles, and position positioning retrieval device can also further provide switch mode this moment, is used for switching between map display mode and screening-mode.
Under the map display mode, show two-dimensional map information;
Under screening-mode, with the positional information of two-dimensional map information and location expression information projection on the current shooting picture, described current shooting picture is owing to determine according to the zooming range of camera, therefore be also referred to as selected digital image, and select the positional information of suitable particle size and location expression information to show according to zooming range.
Perhaps, portable terminal is provided with position positioning retrieval device, and the user preestablishes information, and collection is calculated according to portable terminal itself positional information and location expression information, as query argument retrieving map database.
Perhaps, the wear-type imager has camera head and position positioning retrieval device, position positioning retrieval device is determined spatial information, according to spatial information retrieving map database, and positional information and location expression information that handle retrieves are presented at the selected picture that camera head is taken
Use the technology that the preferred embodiment of the present invention provides, no longer adopt expensive unit module, for example locating module 101 and directional perception module 102 can adopt prior art, having reduced cost so also more helps popularizing, simultaneously, according to the demonstration granularity and the mode of focusing range adjustment positional information and location expression information, the positional information and the location expression information of clear and accurate periphery scene is provided for the user timely and conveniently, strengthened user's experience.
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 position positioning retrieval device is characterized in that, comprising:
The spatial retrieval information module is used to obtain the spatial retrieval information in three-dimensional current location place, position positioning retrieval device place;
Image collection module is used to obtain the focusing range information in the current focusing range of described position positioning retrieval device, and forms selected digital image according to the scene in the described focusing range of described spatial retrieval information interception;
The map datum enquiry module is used for the map datum according to described spatial retrieval information and described focusing range information searching and described spatial retrieval information and described focusing range information conforms;
The descriptor projection module is used for the described map datum that described map datum enquiry module obtains is projected in above the described selected digital image.
2. device according to claim 1 is characterized in that, also comprises:
Database module is used for depositing the described map datum in any described current location of described three dimensions place;
Described map datum comprises at least: positional information, the location expression information of the scene in any described current location place in the described three dimensions, and two-dimensional map picture.
3. device according to claim 1 is characterized in that, described descriptor projection module also comprises:
The three dimensional local information converting unit, being used for described spatial retrieval information translation is the pixel coordinate of current described selected digital image place two-dimensional space;
And be used for described positional information with the scene in the described selected digital image, and and described position positioning retrieval device between distance as parameter, determine to be projected in the particular content and the prompting mode of the described map datum above the described selected digital image.
4. device according to claim 1 is characterized in that, described image collection module also comprises:
Zoom lens unit is used for calculating depth of view information by working as front focal length and/or aperture scale, and calculates described focusing range according to described depth of view information.
5. device according to claim 1 is characterized in that, described image collection module also comprises:
The user profile input interface unit is used to receive the set information of input;
Described set information comprises at least: the class categories information of the scene in any described current location place in the described three dimensions.
6. device according to claim 1 is characterized in that, described spatial retrieval information module comprises:
Locating module is used for obtaining the three-dimensional coordinate of the described spatial retrieval information in described current location place;
The directional perception module is used to obtain the position angle of described position positioning retrieval device and predetermined direction; And calculate deflection in the described spatial retrieval information according to described position angle and described focusing range.
7. device according to claim 1 is characterized in that, described position positioning retrieval device is specially:
Have camera vehicle positioning equipment, have positioning function and camera hand-held mobile terminal, have the digital camera of positioning function or have the wear-type imager of positioning function.
8. a location positioning search method is characterized in that, comprising:
Obtain the spatial retrieval information in position positioning retrieval device current location place, obtain the focusing range information of described position positioning retrieval device;
Form selected digital image according to the scene in the described focusing range of described spatial retrieval information interception;
Map datum according to described spatial retrieval information and described focusing range information searching and described spatial retrieval information and described focusing range information conforms;
Described map datum is projected in above the described selected digital image.
9. method according to claim 8 is characterized in that, described be projected in described map datum above the described selected digital image before, also comprise:
With the positional information of the scene in the described selected digital image, and and described position positioning retrieval device between distance as parameter, determine to be projected in the particular content and the prompting mode of the described map datum above the described selected digital image.
10. method according to claim 8 is characterized in that, the described focusing range information of obtaining described position positioning retrieval device further comprises:
Calculate depth of view information by changing focal length and/or aperture scale, and calculate described focusing range information according to described depth of view information.
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