CN113091763A - Navigation method based on live-action three-dimensional map - Google Patents
Navigation method based on live-action three-dimensional map Download PDFInfo
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- CN113091763A CN113091763A CN202110342901.9A CN202110342901A CN113091763A CN 113091763 A CN113091763 A CN 113091763A CN 202110342901 A CN202110342901 A CN 202110342901A CN 113091763 A CN113091763 A CN 113091763A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/3673—Labelling using text of road map data items, e.g. road names, POI names
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3647—Guidance involving output of stored or live camera images or video streams
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Abstract
A navigation method, comprising: (1) the method comprises the steps that a server sets nodes in roads of a live-action three-dimensional map, and generates a first video representing a live-action image between two nodes based on a pedestrian traveling visual angle; processing the first video into a second video with reduced image quality; (2) the user sends the position information, the expected maximum distance and the user preference information to the server; (3) the server generates a plurality of routes and combines a plurality of sections of second videos corresponding to each route to form a third video; (4) the user knows the real-scene situation of each route through the third video, and then selects the real-scene image in the third video as the path position; (5) a new planned route is formed based on the route location and navigation is initiated. The navigation method is convenient to operate, has a real scene, and is suitable for meeting various individual requirements of users in unfamiliar cities.
Description
Technical Field
The invention relates to the technical field of navigation, in particular to a navigation method based on a live-action three-dimensional map.
Background
Navigation is the process of guiding a person or object from one geographic location to another. In general, the setting of its destination is inevitable.
In the related art, there are navigation methods for selecting a desired target within a certain range and further setting the target as a destination, navigation methods for selecting one of a plurality of routes as a navigation path, and methods for planning a route by selecting a certain node of a route after selecting a destination. In addition, the existing navigation mode is usually based on the modes of shortest distance, fastest speed and the like.
The existing navigation usually considers less personalized requirements of users, for example, when traveling in an unfamiliar city, the users often have navigation requirements without clear destinations, for example, see what the users are interested in at random everywhere. Current navigation methods are generally unable to meet these non-destination navigation requirements. In addition, users cannot meet their individual personalized needs for navigation based on travel notes or other planned routes.
Even if the user has preference and the navigation map data has classification calibration to the preference of various users, the description of the user preference in actual use is not easy to be accurate and complete, so that the experience of the user is poor. Furthermore, navigation modes based on the shortest distance, fastest speed mode generally do not meet the deep local experience.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a navigation method for simultaneously solving all the above technical problems.
The purpose of the invention is realized by adopting the following technical scheme:
a navigation method, comprising the steps of:
(101) the server sets nodes in the roads of the live-action three-dimensional map, and generates a first video representing live-action images between two nodes based on the traveling visual angle of the pedestrian, so as to form a plurality of first videos representing live-action video images between adjacent nodes in the server database; the nodes comprise three important geographic coordinates, road intersections and preset distances; processing the first video into a second video with lower image quality; the image displayed by each frame of the first video and the second video corresponds to the geographic position corresponding to the image of the frame;
(102) when a user opens the navigation equipment to start navigation, the starting point is set by setting the current position of the user as the starting point or setting the input position of the user as the starting point, and meanwhile, the starting point is also set as the end point; inputting or presetting an expected maximum distance L and user preference, and sending the position information of a starting point/an end point, the expected maximum distance L and the user preference information to a server; the user preferences include: a plurality of modes including a local life mode, a play mode, a market shopping mode and an approach public toilet mode;
(103) the server screens all road nodes with the distance from the starting point not exceeding L/2, the road nodes are respectively selected as farthest path points to design a plurality of first routes, and the routes from the starting point to one farthest path point and the routes from the one farthest path point to the starting point are respectively calculated to be merged to form one first route; prioritizing the plurality of first routes according to the lowest coincidence degree of the round-trip routes and the highest satisfaction degree of the user preference; meanwhile, the server joints the second videos corresponding to the first route according to the path of the actual route to be sequentially played to form a third video, and provides a user with a choice whether to load and play on the navigation equipment;
(104) the user can quickly know the real-scene condition of each route by respectively or simultaneously playing the third videos of each first route on the navigation equipment; during playing, a user selects the live-action images in the third video by adjusting the playing position of the video, provides a selection for specifically setting the live-action images in the third video as path positions when selecting the live-action images, and marks the selected live-action images and the geographical positions corresponding to the live-action images in a navigation map after the selection is finished;
(105) and (4) according to the route position selected by the user in the step (104), the server or the navigation equipment replans a navigation route which can be used for traversing all the selected route positions according to the principle of shortest round trip distance so as to form a second route, and the navigation is started according to the second route.
Wherein the predetermined distance may be set to 50, 100, 200 or 500 meters; a larger preset distance can be selected on a road with sparse nodes, and a smaller preset distance can be selected on a road with dense nodes; the live-action three-dimensional map picture is a street-action picture, and the second route is different from each first route.
Wherein the user preferences are obtained through voice interaction of the navigation device with the user.
The navigation device is a touch screen navigation device, one live-action image is selected as a passing position through touch in the playing process of the third video, and one or some passing positions can be cancelled in the navigation map.
Wherein the imaging quality of the second video is selectable; and the playing speed of the third video is adjustable.
Compared with the closest prior art, the invention has the advantages that at least the following are simultaneously included:
(1) the user can quickly, completely and really know the real scene around the starting point or the target position; enabling the formation of personalized, non-destination navigation;
(2) the navigation route with the shortest route can be planned according to the personalized requirements;
(3) through the specific means of pre-forming the first video, further pre-processing to obtain the second video and even forming the third video on the server, the three means are combined, and the time of a user waiting for the server to form the video is greatly reduced or even eliminated under the combined action.
Drawings
FIG. 1 illustrates a block flow diagram of a navigation method in accordance with an embodiment of the present invention;
FIG. 2 is a block flow diagram of a navigation method according to another embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative and that the invention is not limited to only this embodiment.
Fig. 1 is a block flow diagram of a navigation method according to an embodiment of the present invention.
Example 1: as shown in fig. 1, a navigation method includes the steps of:
(101) the server sets nodes in the roads of the live-action three-dimensional map, and generates a first video representing live-action images between two nodes based on the traveling visual angle of the pedestrian, so as to form a plurality of first videos representing live-action video images between adjacent nodes in the server database; the nodes comprise three important geographic coordinates, road intersections and preset distances; processing the first video into a second video with lower image quality; the image displayed by each frame of the first video and the second video corresponds to the geographic position corresponding to the image of the frame;
(102) when a user opens the navigation equipment to start navigation, the starting point is set by setting the current position of the user as the starting point or setting the input position of the user as the starting point, and meanwhile, the starting point is also set as the end point; inputting or presetting an expected maximum distance L and user preference, and sending the position information of a starting point/an end point, the expected maximum distance L and the user preference information to a server; the user preferences include: a plurality of modes including a local life mode, a play mode, a market shopping mode and an approach public toilet mode;
(103) the server screens all road nodes with the distance from the starting point not exceeding L/2, the road nodes are respectively selected as farthest path points to design a plurality of first routes, and the routes from the starting point to one farthest path point and the routes from the one farthest path point to the starting point are respectively calculated to be merged to form one first route; prioritizing the plurality of first routes according to the lowest coincidence degree of the round-trip routes and the highest satisfaction degree of the user preference; meanwhile, the server joints the second videos corresponding to the first route according to the path of the actual route to be sequentially played to form a third video, and provides a user with a choice whether to load and play on the navigation equipment;
(104) the user can quickly know the real-scene condition of each route by respectively or simultaneously playing the third videos of each first route on the navigation equipment; during playing, a user selects the live-action images in the third video by adjusting the playing position of the video, provides a selection for specifically setting the live-action images in the third video as path positions when selecting the live-action images, and marks the selected live-action images and the geographical positions corresponding to the live-action images in a navigation map after the selection is finished;
(105) and (4) according to the route position selected by the user in the step (104), the server or the navigation equipment replans a navigation route which can be used for traversing all the selected route positions according to the principle of shortest round trip distance so as to form a second route, and the navigation is started according to the second route.
The pedestrian-advancing-based visual angle is that a pedestrian-advancing-based visual angle is converted in a live-action three-dimensional map according to a display visual angle of the map when a pedestrian advances along the center of a road based on the height of a common pedestrian, so that a first video is formed to describe a live-action image which can be observed when the pedestrian moves from one node to another node; this method involves image transformation.
FIG. 2 is a block flow diagram of a navigation method according to another embodiment of the present invention.
As shown in fig. 2, example 2: a navigation method, comprising the steps of:
(201) the server sets nodes in the roads of the street view map, and carries out grouping processing on street view pictures stored in the map database according to the road nodes, wherein each street view picture corresponds to the geographic position where the street view picture is shot; the nodes comprise three important geographic coordinates, road intersections and preset distances; each group of street view photos represents a real street view which can be seen by a section of road between two adjacent nodes, and each group of street view photos are spliced and connected according to the sequence of geographic positions to form a first video capable of expressing continuous street views; processing the first video into a second video with lower image quality; the photo displayed by each frame in the first video and the second video corresponds to the geographic position data corresponding to the photo;
(202) when a user opens the navigation equipment to start navigation, the starting point is set by setting the current position of the user as the starting point or setting the input position of the user as the starting point, and meanwhile, the starting point is also set as the end point; inputting or presetting an expected maximum distance L and user preference, and sending the position information of a starting point/an end point, the expected maximum distance L and the user preference information to a server; the user preferences include: a plurality of modes including a local life mode, a play mode, a market shopping mode and an approach public toilet mode;
(203) the server screens all road nodes with the distance from the starting point not exceeding L/2, the road nodes are selected as the farthest path points to design a plurality of first routes, and the routes from the starting point to one farthest path point and the routes from the one farthest path point to the starting point are respectively calculated to be merged to form one first route; prioritizing the plurality of first routes according to the lowest coincidence degree of the round-trip routes and the highest satisfaction degree of the user preference; meanwhile, the server sequentially plays the second videos corresponding to the first routes according to the joint of the paths of the actual routes to form a third video, and provides a user with a choice of loading and playing on the navigation equipment;
(204) the user can quickly know the real-scene condition of each route by respectively or simultaneously playing the third videos of each first route on the navigation equipment; during playing, a user selects the live-action photos in the third video by adjusting the playing position of the video, provides a selection for specifically setting the live-action photos as path positions when selecting the live-action photos in the third video, and marks the selected live-action photos and the geographic positions corresponding to the live-action photos in a navigation map after the selection is finished;
(205) based on the user-selected route location in step (204), the server or navigation device re-plans a navigation route that can route to all the selected route locations according to the shortest round trip route to form a second route, and starts navigation according to the second route.
In both of the above methods, the predetermined distance may be set to 50, 100, 200, or 500 meters; the second route is different from each of the first routes. Wherein the user preferences are obtained through voice interaction of the navigation device with the user. The navigation device is a touch screen navigation device, one live-action image is selected as a passing position through touch in the playing process of the third video, and one or some passing positions can be cancelled in the navigation map. The imaging quality of the second video may be selected in various ways. And the playing speed of the third video is adjustable.
It is emphasized that the playing of the third video may be obtained by essentially playing the second video only in the order of the path, which, although reducing the smoothness of the playing compared to integrating into one video file, facilitates the downloading of the navigation device at the playing side, and reduces the bandwidth requirements when playing multiple third videos at the same time. This is also a great advantage of the present invention. Certainly, the server can integrate a plurality of second videos corresponding to one first route into one video file according to the requirements of the user, so that the playing is smoother.
And in the steps (105) and (205), the system replans a navigation route which starts from the starting point, returns to the starting point and can go through all the selected route positions according to the principle that the round trip distance returning to the starting point is shortest to form a second route, which can be calculated by a navigation device or a server, for example, referring to the method for forming the first route in the steps (103) and (203), wherein a certain route position is set as the farthest route point, for example, all routes in a certain range are exhausted, the shortest route is selected, and the like, and the description is omitted.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A navigation method, comprising the steps of:
(101) the server sets nodes in the roads of the live-action three-dimensional map, and generates a first video representing live-action images between two nodes based on the traveling visual angle of the pedestrian, so as to form a plurality of first videos representing live-action video images between adjacent nodes in the server database; the nodes comprise three important geographic coordinates, road intersections and preset distances; processing the first video into a second video with lower image quality; the image displayed by each frame of the first video and the second video corresponds to the geographic position corresponding to the image of the frame;
(102) when a user opens the navigation equipment to start navigation, the starting point is set by setting the current position of the user as the starting point or setting the input position of the user as the starting point, and meanwhile, the starting point is also set as the end point; inputting or presetting an expected maximum distance L and user preference, and sending the position information of a starting point/an end point, the expected maximum distance L and the user preference information to a server; the user preferences include: a plurality of modes including a local life mode, a play mode, a market shopping mode and an approach public toilet mode;
(103) the server screens all road nodes with the distance from the starting point not exceeding L/2, the road nodes are respectively selected as farthest path points to design a plurality of first routes, and the routes from the starting point to one farthest path point and the routes from the one farthest path point to the starting point are respectively calculated to be merged to form one first route; prioritizing the plurality of first routes according to the lowest coincidence degree of the round-trip routes and the highest satisfaction degree of the user preference; meanwhile, the server joints the second videos corresponding to the first route according to the path of the actual route to be sequentially played to form a third video, and provides a user with a choice whether to load and play on the navigation equipment;
(104) the user can quickly know the real-scene condition of each route by respectively or simultaneously playing the third videos of each first route on the navigation equipment; during playing, a user selects the live-action images in the third video by adjusting the playing position of the video, provides a selection for specifically setting the live-action images in the third video as path positions when selecting the live-action images, and marks the selected live-action images and the geographical positions corresponding to the live-action images in a navigation map after the selection is finished;
(105) and (4) according to the route position selected by the user in the step (104), the server or the navigation equipment replans a navigation route which can be used for traversing all the selected route positions according to the principle of shortest round trip distance so as to form a second route, and the navigation is started according to the second route.
2. The navigation method according to claim 1, wherein the predetermined distance may be set to 50, 100, 200, or 500 meters; the second route is different from each of the first routes.
3. The navigation method of claim 1, wherein the user preferences are obtained through voice interaction of the navigation device with the user.
4. The navigation method according to claim 1, wherein the navigation device is a touch screen navigation device, the selection of one live-action image as the via position is realized by touch in the playing process of the third video, and a certain or some via positions can be cancelled in the navigation map.
5. The navigation method according to claim 1, wherein the imaging quality of the second video is selectable in a plurality; and the playing speed of the third video is adjustable.
6. A navigation method, comprising the steps of:
(201) the server sets nodes in the roads of the street view map, and carries out grouping processing on street view pictures stored in the map database according to the road nodes, wherein each street view picture corresponds to the geographic position where the street view picture is shot; the nodes comprise three important geographic coordinates, road intersections and preset distances;
each group of street view photos represents a real street view which can be seen by a section of road between two adjacent nodes, and each group of street view photos are spliced and connected according to the sequence of geographic positions to form a first video capable of expressing continuous street views; processing the first video into a second video with lower image quality; the photo displayed by each frame in the first video and the second video corresponds to the geographic position data corresponding to the photo;
(202) when a user opens the navigation equipment to start navigation, the starting point is set by setting the current position of the user as the starting point or setting the input position of the user as the starting point, and meanwhile, the starting point is also set as the end point; inputting or presetting an expected maximum distance L and user preference, and sending the position information of a starting point/an end point, the expected maximum distance L and the user preference information to a server; the user preferences include: a plurality of modes including a local life mode, a play mode, a market shopping mode and an approach public toilet mode;
(203) the server screens all road nodes with the distance from the starting point not exceeding L/2, the road nodes are selected as the farthest path points to design a plurality of first routes, and the routes from the starting point to one farthest path point and the routes from the one farthest path point to the starting point are respectively calculated to be merged to form one first route; prioritizing the plurality of first routes according to the lowest coincidence degree of the round-trip routes and the highest satisfaction degree of the user preference; meanwhile, the server sequentially plays the second videos corresponding to the first routes according to the joint of the paths of the actual routes to form a third video, and provides a user with a choice of loading and playing on the navigation equipment;
(204) the user can quickly know the real-scene condition of each route by respectively or simultaneously playing the third videos of each first route on the navigation equipment; during playing, a user selects the live-action photos in the third video by adjusting the playing position of the video, provides a selection for specifically setting the live-action photos as path positions when selecting the live-action photos in the third video, and marks the selected live-action photos and the geographic positions corresponding to the live-action photos in a navigation map after the selection is finished;
(205) based on the user-selected route location in step (204), the server or navigation device re-plans a navigation route that can route to all the selected route locations according to the shortest round trip route to form a second route, and starts navigation according to the second route.
7. The navigation method according to claim 6, characterized in that the segmentation distance is 20, 50, 100, 200 meters; the live-action three-dimensional map picture is a street-action picture, and the second route is different from each first route.
8. The navigation method of claim 6, wherein the user preferences are obtained through voice interaction of the navigation device with the user.
9. The navigation method according to claim 6, wherein the navigation device is a touch screen navigation device, the selection of the live-action picture as the route position is realized by touch during the playing process of the third video, and the certain route position or positions can be cancelled.
10. The navigation method according to claim 6, wherein the imaging quality of the second video is selectable in a plurality; and the playing speed of the third video is adjustable.
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