CN113091764A - Method for customizing and displaying navigation route of live-action three-dimensional map - Google Patents
Method for customizing and displaying navigation route of live-action three-dimensional map Download PDFInfo
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- CN113091764A CN113091764A CN202110345415.2A CN202110345415A CN113091764A CN 113091764 A CN113091764 A CN 113091764A CN 202110345415 A CN202110345415 A CN 202110345415A CN 113091764 A CN113091764 A CN 113091764A
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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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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
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Abstract
A method for customizing and displaying a real-scene three-dimensional map navigation route comprises the following steps: the method comprises the steps that a server sets nodes in a road of a live-action three-dimensional map, generates a first video representing a live-action image between two adjacent nodes based on a pedestrian advancing visual angle, and processes the first video into a second video with lower image quality; when a user finds a plurality of interested positions in browsing the live-action three-dimensional map, entering an interested route drawing mode to draw a first route containing the plurality of interested positions on the live-action three-dimensional map in a finger-sliding mode; further obtaining a node route including the first route; and playing one or more second videos corresponding to the node route based on the traveling visual angle of the pedestrian. The method has the advantages that the information of the whole travel route is completely displayed to the user based on the travel visual angle of the pedestrian, and the method also has an interested route drawing mode, so that the expected route can be intuitively and conveniently obtained.
Description
Technical Field
The invention relates to the field of live-action three-dimensional maps, in particular to a method for customizing and displaying a navigation route of a live-action three-dimensional map.
Background
The live-action three-dimensional map is realized by directly scanning the height and the width of a building by utilizing a satellite or laser technology to finally form a three-dimensional map data file, and the live-action three-dimensional map is realized based on a real object shooting and data abstract acquisition technology.
The inventor finds that, when the live-action three-dimensional map is used, although the live-action three-dimensional map has high reality and strong visibility, a browsing mode based on a user traveling view angle is not usually provided during use, and all information images of the whole traveling route cannot be displayed to the user based on the user traveling view angle.
Moreover, when browsing the live-action three-dimensional map, the user can obtain the distribution characteristics of the peripheral scenes from the live-action three-dimensional map, so that the user can actually know which route he/she wants to select. However, the conventional route selection method usually selects a starting point and an end point respectively, and requires a plurality of selection processes of selecting a route desired by a user by selecting a certain point as the starting point, selecting another point as the end point, selecting a plurality of interest points as the route points respectively, calculating to obtain a plurality of routes, and selecting the route. This requires multiple selections to obtain the route that the heart has already determined, which is complicated and unnecessary.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a method for displaying an image on a live-action three-dimensional map, so as to solve all the above technical problems.
The purpose of the invention is realized by adopting the following technical scheme:
a method for customizing and displaying a real-scene three-dimensional map navigation route comprises the following steps:
step 101: 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 all live-action images between two adjacent nodes based on the traveling visual angle of pedestrians, so that a plurality of first videos representing the live-action video images between the adjacent nodes are formed in a server database; the nodes comprise important geographic coordinates, road intersections and nodes arranged at 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; a route between any two nodes is called a node route;
step 102: the user side equipment is touch screen display equipment, and when a user browses the real-scene three-dimensional map and finds a plurality of interested positions, the user side equipment provides a selection for entering an interested route drawing mode;
step 103: in an interesting route drawing mode, a user draws a route containing a plurality of interesting positions on a live-action three-dimensional map in a finger sliding mode and records the route as a first route;
step 104: the user equipment calculates screen positions of starting and ending of sliding, and records corresponding road positions of the screen positions in the live-action three-dimensional map as a first road position and a second road position respectively; the customer premise equipment provides the first road position and the second road position for the server; the server selects a node route comprising the first route according to the principle that the length of the first route in the node route accounts for the highest ratio, wherein the starting point of the node route is the first node, and the end point of the node route is the second node;
step 105: the server provides a request for loading the video for the user, and when the user selects to load the video, the video is played in a layer above the layer of the live-action three-dimensional map; when the node route only corresponds to one second video, only one second video is played; when the node route corresponds to a plurality of second videos, playing the plurality of second videos according to the sequence from the starting point to the end point; the second video is used for representing all real-scene images of the road where the plurality of interested positions are located.
Wherein the imaging quality of the second video is formed in various ways, such as high \ low \ medium. And the playing speed of the third video is adjustable. During playing, a user obtains the coordinates of a target point corresponding to the playing position by adjusting the playing position of the video. The predetermined distance is that a node is arranged on a road at every predetermined distance. When a user selects to start from the current position to an interested route, the user end equipment calculates the distances from the current position to the first node and the second node, selects the first node or the second node which is closer to the current position of the user as a destination to generate a navigation route, and superposes the navigation route and the node route to generate a total navigation route.
Compared with the prior art, the invention has the beneficial effects that at least:
(1) completely displaying the information of the whole travelling route to the user based on the travelling view angle of the pedestrian;
(2) the user only needs to select an interested route drawing mode, and the interested part is drawn on the map in the mode to obtain the expected interested route, so that the method is more intuitive and quicker compared with the traditional mode;
(3) the method comprises the steps of pre-forming a first video on a server, further pre-processing to obtain a second video with lower imaging quality and lower requirements on network transmission and playing, and playing a node route in a mode that the second video is played in sequence to describe the node route instead of forming a complete video. Combining these three approaches, the combined effect greatly reduces or even eliminates the time a user waits for the server to form a desired video of an image. Although the mode of playing the second video sequentially has obvious stagnation at the node position, compared with the mode of integrating the second video into one video file, the playing fluency is reduced, but the mode is more convenient for the user terminal equipment to download the second video while playing, and the invention also belongs to a great advantage.
Drawings
FIG. 1 illustrates a live-action three-dimensional map navigation route customization and display method embodying the present invention.
Detailed Description
The following describes the present invention in further detail with reference to fig. 1.
FIG. 1 illustrates a live-action three-dimensional map navigation route customization and display method embodying the present invention, the method comprising the steps of:
step 101: 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 all live-action images between two adjacent nodes based on the traveling visual angle of pedestrians, so that a plurality of first videos representing the live-action video images between the adjacent nodes are formed in a server database; the nodes comprise important geographic coordinates, road intersections and nodes arranged at 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; a route between any two nodes is called a node route;
step 102: the user side equipment is touch screen display equipment, and when a user browses the real-scene three-dimensional map and finds a plurality of interested positions, the user side equipment provides a selection for entering an interested route drawing mode;
step 103: in an interesting route drawing mode, a user draws a route containing a plurality of interesting positions on a live-action three-dimensional map in a finger sliding mode and records the route as a first route;
step 104: the user equipment calculates screen positions of starting and ending of sliding, and records corresponding road positions of the screen positions in the live-action three-dimensional map as a first road position and a second road position respectively; the customer premise equipment provides the first road position and the second road position for the server; the server selects a node route comprising the first route according to the principle that the length of the first route in the node route accounts for the highest ratio, wherein the starting point of the node route is the first node, and the end point of the node route is the second node;
step 105: the server provides a request for loading the video for the user, and when the user selects to load the video, the video is played in a layer above the layer of the live-action three-dimensional map; when the node route only corresponds to one second video, only one second video is played; when the node route corresponds to a plurality of second videos, playing the plurality of second videos according to the sequence from the starting point to the end point; the second video is used for representing all real-scene images of the road where the plurality of interested positions are located.
The pedestrian-advancing-based visual angle refers to that based on the height of an ordinary pedestrian, a pedestrian-advancing-based visual angle is converted on a real-scene three-dimensional map model in a real-scene three-dimensional map according to a display visual angle of the map when the pedestrian advances along the center of a road, and a first video is further formed to describe all real-scene image videos which can be observed when the pedestrian moves from one node to another adjacent node; the method related to image transformation is widely applied to three-dimensional map image transformation such as 3D games and the like, and is not repeated herein.
Wherein the imaging quality of the second video is formed in a plurality of choices, such as high, low and medium. And the playing speed of the third video is adjustable. During playing, a user obtains the coordinates of a target point corresponding to the playing position by adjusting the playing position of the video.
And when the user selects to start from the current position to the route of interest, the user end equipment calculates the distances from the current position to the first node and the second node, selects the first node or the second node which is closer to the current position of the user as a destination to generate a navigation route, and superposes the navigation route and the node route to generate a total navigation route. Thus, the distance is shortest and the repeated route is taken less frequently.
In addition, in the method for displaying a live-action three-dimensional map image, the video displayed by the image may be obtained from a live-action three-dimensional image, and may also be obtained through a street view database, which is similar to the way of providing a live-action three-dimensional map, and specifically may be: 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; 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; and mapping the second video containing the geographic coordinate information into the live-action three-dimensional map for display. The street view map data may be obtained as follows: the method comprises the steps of utilizing road information of each road in a vehicle acquisition area, wherein the road information comprises image information of two sides of the road, specifically in a video or picture form, and preprocessing the pictures or the videos to form the pictures capable of expressing the road information. The technology of forming a picture joint with a longer length by picture joint is not described herein again, and of course, the pictures can be played in sequence to form a required corresponding video.
Finally, it should be noted that: the above embodiments and preferred modes 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 (5)
1. A method for customizing and displaying a real-scene three-dimensional map navigation route comprises the following steps:
step 101: 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 all live-action images between two adjacent nodes based on the traveling visual angle of pedestrians, so that a plurality of first videos representing the live-action video images between the adjacent nodes are formed in a server database; the nodes comprise important geographic coordinates, road intersections and nodes arranged at 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; a route between any two nodes is called a node route;
step 102: the user side equipment is touch screen display equipment, and when a user browses the real-scene three-dimensional map and finds a plurality of interested positions, the user side equipment provides a selection for entering an interested route drawing mode;
step 103: in an interesting route drawing mode, a user draws a route containing a plurality of interesting positions on a live-action three-dimensional map in a finger sliding mode and records the route as a first route;
step 104: the user equipment calculates screen positions of starting and ending of sliding, and records corresponding road positions of the screen positions in the live-action three-dimensional map as a first road position and a second road position respectively; the customer premise equipment provides the first road position and the second road position for the server; the server selects a node route comprising the first route according to the principle that the length of the first route in the node route accounts for the highest ratio, wherein the starting point of the node route is the first node, and the end point of the node route is the second node;
step 105: the server provides a request for loading the video for the user, and when the user selects to load the video, the video is played in a layer above the layer of the live-action three-dimensional map; when the node route only corresponds to one second video, only one second video is played; when the node route corresponds to a plurality of second videos, playing the plurality of second videos according to the sequence from the starting point to the end point; the second video is used for representing all real-scene images of the road where the plurality of interested positions are located.
2. The method of claim 1, wherein the imaging quality of the second video formed by the server is selectable.
3. The method of claim 1, wherein the third video is played at an adjustable speed.
4. The method according to claim 1, wherein during playing, the user adjusts the playing position of the video to obtain the coordinates of the target point corresponding to the playing position.
5. The method according to claim 1, wherein when the user selects to start from the current position to the route of interest, the client device calculates the distances from the current position to the first and second nodes, selects the first or second node closer to the current position of the user as the destination to generate the navigation route, and superimposes the navigation route with the node route to generate the total navigation route.
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