CN101504805A - Electronic map having road side panoramic image tape, manufacturing thereof and interest point annotation method - Google Patents
Electronic map having road side panoramic image tape, manufacturing thereof and interest point annotation method Download PDFInfo
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- CN101504805A CN101504805A CNA2009100086177A CN200910008617A CN101504805A CN 101504805 A CN101504805 A CN 101504805A CN A2009100086177 A CNA2009100086177 A CN A2009100086177A CN 200910008617 A CN200910008617 A CN 200910008617A CN 101504805 A CN101504805 A CN 101504805A
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Abstract
The invention relates to an electronic map, in particular to an electronic map provided with roadside panoramic view picture strips, a method for manufacturing the same, and a method for marking interested places. The invention is dependent on road information of the prior electronic map and the correlation between the road information and the panoramic view picture strips for the overlay of the panoramic view picture strips showing both roadsides on roads displayed on the electronic map. Each panoramic view picture strip is a narrow picture which records all the scenes on a section of road, and users can comprehensively, continuously and intuitively know the conditions on both sides of a street through the panoramic view picture strip and determine the actual position of a place in the panoramic view picture strip on the electronic map.
Description
Technical field
The present invention relates to a kind of electronic chart, particularly a kind of electronic chart, its making and interest point annotation method with road side panoramic image tape.
Background technology
The existing main display base road information of electronic chart is added a limited number of points of interest.The positional information of point of interest obtains by dual mode.The one, utilize professional equipment to gather on the spot by professional institution with mapping qualification, record the accurate coordinates of point of interest.The information that this mode obtains is accurate, but shortcoming is the requirement height to picker and collecting device, and operating process is loaded down with trivial details, expends huge.So this mode generally is applicable to the collection of some important points of interest, can't take into account numerous, with the point of interest of the closely bound up aspects such as food and drink, amusement and other service facilities of ordinary populace, and this class point of interest is being contained huge commercial value just.Another kind of mode is to mark point of interest known to them by the Internet user on the electronic chart website interactively.This mode has made full use of the advantage of internet, can start quantity huge internet user fellowship mark, and is simple and efficient, with low cost.But it is more random that shortcoming is personal behavior, unpredictable, lacks to plan as a whole and coordinate, and interest point information also is difficult to be covered comprehensively like this; And the point of interest position of individual's mark is very inaccurate, certainly will cause confusion after many people mark respectively.
Chinese invention patent CN1845094A discloses a kind of structure panorama electronic map service method, comprises the steps: 1) collection panorama sketch sequence; 2) in server, set up the database comprise the panorama sketch sequence: 3) set up electronic chart and link with location association between the panorama sketch sequence; 4) search location panorama sketch.This method requires the capturing panoramic view image sequence, and sets up location association.Two width of cloth image requests front and back information adjacent in its image sequence is continuous, promptly has certain coincidence space, but has information redundancy like this, causes the shared storage space of panoramic image sequence very big.Every width of cloth image of panoramic image sequence is also related with its geographical location information, sets up related process and has certain technical difficulty, and is comparatively loaded down with trivial details in the operation.
Chinese invention patent CN101082912A discloses a kind of pictures by having positional information to the method that electronic chart marks, and it is characterized in that comprising following steps: 1) obtain pictures with positional information; 2) by the positional information in the pictures, pictures are associated with on the electronic chart; 3) in pictures, find the object that needs to mark to make a mark; 4) object that will mark navigates in the electronic chart.This method has adopted the principle identical with Chinese invention patent CN1845094A, promptly gather the continuous images sequence and set up location association, so the problem that faces is also identical, promptly the shared storage space of pictures is big and set up location association and have certain complexity.
Chinese invention patent CN1367469A discloses a kind of picked-up and generation method of road overall view image tape, it is characterized in that carrying out as follows: 1) with the on the way landscape map picture input computing machine of camera record on video-tape, or video camera is connected on the computing machine that has the realtime graphic input media, in consecutive image, the data on the image line are examined shellfish in the memory headroom of road overall view image, construct road overall view image tape or road overall view image tube; 2) adopt feature extraction method in the Flame Image Process, extract the limit approaching in the road overall view image tape with direction of motion, and the tracking continuous segments, even up the tectonic line of the scenery of taking the photograph in the picture strip then by the method for medium filtering, with vehicle or setback composition cancellation that Ship Vibration caused; 3) adopt block count word series transmission technology, the road panorama is divided into a lot of fragments, input position according to user interface, position and the Dynamic Selection image sections calculated on the map road are used for real-time transmitting and displaying, outside the current image sections of observing of explicit user, also transmit its adjacent image sections,, constitute virtual navigation with the continuous demands of buffering to the view data that links to each other; 4) use the two dimensional image transform method, realize that road side form shows, the place ahead of road overall view image tape shows that 360 degree ring scapes embed and show the demonstration of panorama image tube; 5) utilization constitutes complete city streetscape picture library at the road overall view image and the local ring scape image of avenue and intersection picked-up, constructs the vision mode of city space, provides online urban information retrieval and virtual navigation with visual information.This method from the image sequence of video camera, read an image line in real time and with it along road direction series arrangement, generate road overall view image tape.This method has been eliminated information redundancy, has greatly saved storage space.
Summary of the invention
Technical matters to be solved by this invention is, at the above-mentioned deficiency of prior art and a kind of electronic chart, its making and interest point annotation method with road side panoramic image tape is provided.
Electronic chart, its making and interest point annotation method with road side panoramic image tape provided by the present invention realized by following technical scheme.
The present invention relies on the existing existing basic road information of electronic chart, shows the view picture view image tape of the true streetscape in road both sides; And based on this view image tape interest point annotation, described view image tape is a long and narrow picture, this picture record all scenery in one segment distance.
A kind of electronic chart with road side panoramic image tape, store the view picture view image tape of the true streetscape in road both sides in the database file of wherein said electronic chart, the user interface of described electronic chart is provided with the control that shows view image tape, specify the highway section by the human-computer interaction device, service routine responds this request, shows view image tape associated therewith in the stack of the both sides of road section selected.Described electronic chart with road side panoramic image tape, wherein said control comprises function button and/or menu at least; Described human-computer interaction device comprises mouse and/or keyboard.The present invention also provides a kind of above-mentioned method for making with electronic chart of road side panoramic image tape.
The present invention also provides a kind of above-mentioned method for making with electronic chart of road side panoramic image tape, comprises the steps:
1) obtains the long width of cloth view image tape of the true streetscape in road both sides with certain-length;
2) view image tape is saved as database file, every record of database comprises the road name and the two ends road corresponding node at one section view image tape, its place;
3) with nodal information that the road data of electronic chart is related with the view image tape foundation in each highway section according to road name, stack shows corresponding with it view image tape on the highway section of electronic chart.
Described method for making with electronic chart of road side panoramic image tape, the wherein said long width of cloth view image tape that obtains the true streetscape in road both sides comprises with the digital image camera-shooting and recording device road both sides is taken, and obtains the continuous images sequence; With continuous images sequence assembly growth width of cloth view image tape.
Described method for making with electronic chart of road side panoramic image tape, the determining of wherein said view image tape terminal chosen representational node on road, road is carried out segmentation, be unit acquisition sequence image then with the highway section and carry out image mosaic, generate the view image tape in each highway section; Or obtain a long width of cloth panoramic picture earlier, and choose some road circuit nodes again, on long width of cloth panoramic picture, find the corresponding point of each road circuit node, be that the long width of cloth panoramic picture of bound pair carries out segmentation with these corresponding point.
Described method for making with electronic chart of road side panoramic image tape, the wherein said road data of electronic chart and the view image tape in each highway section foundation according to road name and nodal information relatedly is: every record in electronic map road data storehouse comprises the title of a road and several nodes on this road, and every record of view image tape database comprises one section view image tape, the road name at its place and two ends road corresponding node, road name and start-stop node with road section selected are that key word is retrieved the view image tape database, find the view image tape corresponding with this highway section.
The present invention also provides a kind of method based on above-mentioned panorama electronic map interest point annotation, comprises the steps:
1) on panorama electronic map, finds out the highway section AB that desires interest point annotation, and draw the length S of described highway section AB according to the road data of electronic chart
AB
2) desire on the view image tape of highway section AB of interest point annotation at panorama electronic map, by the control that marks on the activated user interface, and the point of interest by human-computer interaction device's selected desire mark on view image tape, and draw the above point of interest of view image tape to the pixel distance L of A end points or arrive the pixel distance R of B end points;
3) according to pixel distance L or R between the above point of interest of view image tape and the view image tape end points, and related between described road circuit node and the view image tape end points, the real road length S of point of interest tried to achieve with respect to A or B
AOr S
B
4), comprise the real road length S of point of interest with respect to A or B with interest point information
AOr S
B, be saved as database file.
The method of described panorama map label point of interest, wherein said road data according to electronic chart draws the length S of described highway section AB
AB: if described highway section AB is a straight line, then described road section length S
ABBe the distance between two-end-point A, the B; If described highway section is broken line A, C, D ..B, then described road section length S
ABFor constituting each broken line length sum in described highway section; If described highway section is a curve, then described road section length S
ABLength of curve for described highway section;
The method of described panorama map label point of interest, wherein said point of interest to the road circuit node apart from S
AOr S
B, try to achieve according to following formula:
S
A＝S
AB×L/(L+R)
S
B＝S
AB×R/(L+R)。
The invention has the advantages that:
1, electronic chart of the present invention can show the view picture view image tape of the true streetscape in road both sides, and the user can understand the situation of this both sides, street comprehensively, continuously, intuitively.
2, panorama cartography method of the present invention simple, quick, need not complex apparatus.
3, the irredundant information of view image tape, shared storage space is little.
4, view image tape itself just can provide the relative position information between the pixel, only need set up related between view image tape end points and the real road node, need not to set up extra location association, rely on the existing road information of electronic chart, just can determine the physical location of certain point on electronic chart in the view image tape.Not only convenient and swift based on the view image tape interest point annotation, with low cost, and resulting point of interest position is relatively accurate, can not cause the confusion of mark.
For architectural feature of the present invention and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is panorama electronic map display effect figure of the present invention.
Fig. 2 is the block diagram of the method for making of the electronic chart of the present invention with road side panoramic image tape.
Fig. 3 is the block diagram of panorama electronic map interest point annotation method of the present invention.
Embodiment
A kind of electronic chart provided by the present invention with road side panoramic image tape, store the view picture view image tape of the true streetscape in road both sides in the database file of wherein said electronic chart, the user interface of described electronic chart is provided with the control that shows view image tape, specify the highway section by the human-computer interaction device, service routine responds this request, shows view image tape associated therewith (as shown in Figure 1) in the stack of the both sides of road section selected.
Described control comprises function button and/or menu at least; Described human-computer interaction device comprises mouse and/or keyboard.
The present invention also provides a kind of above-mentioned method for making with electronic chart of road side panoramic image tape.
Fig. 2 is above-mentioned method for making with electronic chart of road side panoramic image tape, comprises the steps:
1) obtains the long width of cloth view image tape of the true streetscape in road both sides with certain-length;
2) view image tape is saved as database file, every record of database comprises the road name and the two ends road corresponding node at one section view image tape, its place;
3) with nodal information that the road data of electronic chart is related with the view image tape foundation in each highway section according to road name, stack shows corresponding with it view image tape on the highway section of electronic chart.
The described long width of cloth view image tape that obtains the true streetscape in road both sides comprises with the digital image camera-shooting and recording device road both sides is taken, and obtains the continuous images sequence; With continuous images sequence assembly growth width of cloth view image tape, this figure has write down the true streetscape in roadside.How image sequence is spliced growth width of cloth view image tape and belong to known technology, repeat no more.
During shooting, along road truck camera (or have other collecting device of the camera function), take the scenery in roadside, obtaining a series of continuous video images is described image sequence.By adjusting the frame per second of point-to-point speed and video camera, make to have suitable registration between the adjacent video image.
The determining of described view image tape terminal chosen representational node on road, road is carried out segmentation, is unit acquisition sequence image then with the highway section and carries out image mosaic, generates the view image tape in each highway section; Or obtain a long width of cloth panoramic picture earlier, and choose some road circuit nodes again, on long width of cloth panoramic picture, find the corresponding point of each road circuit node, be that the long width of cloth panoramic picture of bound pair carries out segmentation with these corresponding point.Choose representational node on the described electronic chart and normally select adjacent two intersections, arrive Dongdan as the Wangfujing; Or comprise the highway section of a plurality of intersections, as the East Chang'an Street.
The described road data of electronic chart and the view image tape in each highway section foundation according to road name and nodal information relatedly is: every record in electronic map road data storehouse comprises the title of a road and several nodes on this road, and every record of view image tape database comprises the road name and the two ends road corresponding node at one section view image tape, its place, road name and start-stop node with road section selected are that key word is retrieved the view image tape database, find the view image tape corresponding with this highway section.
The view image tape database file combines with other database file of electronic chart, and operation electronic chart display routine, can present the true streetscape of road both sides.Electronic chart display routine and above-mentioned data can exist on the medium such as CD, offer the user with the form of standalone version, also can be to exist on the web server, for the user provides web service.The user is when browsing electronic chart, can specify the highway section and click the control (as function button, menu etc.) that shows view image tape on the user interface by human-computer interaction device's (as mouse, keyboard etc.), request shows the true streetscape of a certain specific road section, after the electronic chart display routine is received request, access the view image tape that is associated with this highway section from image data base, stack is presented at the both sides of current road on the electronic chart.Display effect as shown in Figure 1.
The present invention also provides a kind of method based on above-mentioned panorama electronic map interest point annotation.Described interest point annotation is to want the true scenery that marks with click on view image tape, to obtain its physical location on electronic chart.View image tape itself provides the pixel distance of scenery, and view image tape is the reflection of real space, so the relative distance between each scenery is accurately in certain accuracy rating.Only need set up related between view image tape end points and the real road node, need not to set up extra location association, rely on the existing road information of electronic chart, utilize the proportionate relationship between link length and the pixel distance just can determine the physical location of each point on electronic chart in the view image tape.
A kind of method based on aforementioned panorama electronic map interest point annotation comprises the steps:
1) on panorama electronic map, finds out the highway section AB that desires interest point annotation, and draw the length S of described highway section AB according to the road data of electronic chart
AB
2) desire on the view image tape of highway section AB of interest point annotation at panorama electronic map, by the control that marks on the activated user interface, pixel) or arrive the pixel distance R (unit: pixel) of B end points and the point of interest by mouse selected desire mark on view image tape, and draw the above point of interest of view image tape to the pixel distance L of A end points (unit:;
3) according to pixel distance L or R between click place and the view image tape end points, and related between described road end points and the view image tape end points, the real road length S of point of interest tried to achieve with respect to A or B
AOr S
B
4) with interest point information, comprise the real road length of point of interest with respect to A or B, be saved as database file.
Interest point annotation is not only convenient and swift in this way, and the position of point of interest is relatively accurate.
Described road data according to electronic chart draws the length S of described highway section AB
AB: if described highway section AB is a straight line, then described road section length S
ABBe the distance between two-end-point A, the B; If described highway section is broken line A, C, D ..B, then described road section length S
ABFor constituting each broken line length sum in described highway section; If described highway section is a curve, then described road section length S
ABLength of curve for described highway section.
Described point of interest to the road circuit node apart from S
A, or S
B, try to achieve according to following formula:
S
A＝S
AB×L/(L+R)
S
B＝S
AB×R/(L+R)
After generating view image tape, can utilize the whole point of interest of the unified extraction of said method by electronic map data supplier or electronic chart service provider, or open and freely mark for the Internet user, or extract a part of important point of interest by the former, all the other are freely marked by the latter.No matter which kind of pattern all can not cause the confusion of mark.The interest point information of mark comprises address, organization, flat type (as food and drink, amusement, office, hospital etc.), phone, service item, service time etc.Interest point data is saved as database file, as the data of electronic chart, can greatly enrich the function of electronic chart.And, view image tape has been arranged, outdoor scene information is just set up related with interest point information.The user is when browsing panorama sketch, and when mouse rested on certain position on the panorama sketch, program can eject corresponding with it interest point information automatically.This businessman to the both sides, street especially has commercial value, and electronic chart service provider can collect certain expense to show the information of retail shop to the user to businessman.Interest point information also can be the user fixed-position searching service and navigation Service is provided, it is the title that the user imports certain place, program shows the position and the corresponding panorama sketch in this place on electronic chart, make the user obtain impression on the spot in person, the place of being searched is formed understanding deeply and intuitively.
Claims (9)
1, a kind of electronic chart with road side panoramic image tape, it is characterized in that storing in the database file of described electronic chart the view picture view image tape of the true streetscape in road both sides, the user interface of described electronic chart is provided with the control that shows view image tape, specify the highway section by the human-computer interaction device, service routine responds this request, shows view image tape associated therewith in the stack of the both sides of road section selected.
2, the electronic chart with road side panoramic image tape according to claim 1 is characterized in that described control comprises function button and/or menu at least; Described human-computer interaction device comprises mouse and/or keyboard.
3, the described method for making with electronic chart of road side panoramic image tape of a kind of claim 1 comprises the steps:
1) obtains the long width of cloth view image tape of the true streetscape in road both sides with certain-length;
2) view image tape is saved as database file, every record of database comprises the road name and the two ends road corresponding node at one section view image tape, its place;
3) with nodal information that the road data of electronic chart is related with the view image tape foundation in each highway section according to road name, stack shows corresponding with it view image tape on the highway section of electronic chart.
4, the method for making with electronic chart of road side panoramic image tape according to claim 3, it is characterized in that the described long width of cloth view image tape that obtains the true streetscape in road both sides, comprise with the digital image camera-shooting and recording device road both sides are taken, obtain the continuous images sequence; With continuous images sequence assembly growth width of cloth view image tape.
5, the method for making with electronic chart of road side panoramic image tape according to claim 3, it is characterized in that described view image tape terminal determine on road, choose representational node, road is carried out segmentation, be unit acquisition sequence image then with the highway section and carry out image mosaic, generate the view image tape in each highway section; Or obtain a long width of cloth panoramic picture earlier, and choose some road circuit nodes again, on long width of cloth panoramic picture, find the corresponding point of each road circuit node, be that the long width of cloth panoramic picture of bound pair carries out segmentation with these corresponding point.
6, method for making with electronic chart of road side panoramic image tape according to claim 3, it is characterized in that the described road data of electronic chart and the view image tape in each highway section foundation according to road name and nodal information relatedly is: every record in electronic map road data storehouse comprises the title of a road and several nodes on this road, and every record of view image tape database comprises one section view image tape, the road name at its place and two ends road corresponding node, road name and start-stop node with road section selected are that key word is retrieved the view image tape database, find the view image tape corresponding with this highway section.
7, a kind of method based on the described panorama electronic map interest point annotation of claim 1 comprises the steps:
1) on panorama electronic map, finds out the highway section AB that desires interest point annotation, and draw the length S of described highway section AB according to the road data of electronic chart
AB
2) desire on the view image tape of highway section AB of interest point annotation at panorama electronic map, by the control that marks on the activated user interface, and the point of interest by human-computer interaction device's selected desire mark on view image tape, and draw the above point of interest of view image tape to the pixel distance L of A end points or arrive the pixel distance R of B end points;
3) according to pixel distance L or R between the above point of interest of view image tape and the view image tape end points, and related between described road circuit node and the view image tape end points, the real road length S of point of interest tried to achieve with respect to A or B
AOr S
B
4), comprise the real road length S of point of interest with respect to A or B with interest point information
AOr S
B, be saved as database file.
8, the method for panorama map label point of interest according to claim 7 is characterized in that described road data according to electronic chart draws the length S of described highway section AB
AB: if described highway section AB is a straight line, then described road section length S
ABBe the distance between two-end-point A, the B; If described highway section is broken line A, C, D ..B, then described road section length S
ABFor constituting each broken line length sum in described highway section; If described highway section is a curve, then described road section length S
ABLength of curve for described highway section.
9, the method for panorama map label point of interest according to claim 7, it is characterized in that described point of interest to the road circuit node apart from S
AOr S
B, try to achieve according to following formula:
S
A＝S
AB×L/(L+R)
S
B＝S
AB×R/(L+R)。
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|---|---|---|---|
| CNA2009100086177A CN101504805A (en) | 2009-02-06 | 2009-02-06 | Electronic map having road side panoramic image tape, manufacturing thereof and interest point annotation method |
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| CNA2009100086177A CN101504805A (en) | 2009-02-06 | 2009-02-06 | Electronic map having road side panoramic image tape, manufacturing thereof and interest point annotation method |
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