CN111256725A - Indication information display method and device, navigation equipment and storage medium - Google Patents
Indication information display method and device, navigation equipment and storage medium Download PDFInfo
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- CN111256725A CN111256725A CN201811458967.9A CN201811458967A CN111256725A CN 111256725 A CN111256725 A CN 111256725A CN 201811458967 A CN201811458967 A CN 201811458967A CN 111256725 A CN111256725 A CN 111256725A
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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
- G01C21/3658—Lane guidance
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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
- G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/001—Texturing; Colouring; Generation of texture or colour
Abstract
The embodiment of the invention provides an indication information display method, an indication information display device, navigation equipment and a storage medium, wherein the method comprises the following steps: determining a target lane; determining target indication information corresponding to the target lane from preset lane-level map data; at least carrying out graphical processing on the target indication information to obtain image textures of the target indication information; and rendering the image texture on a screen to show the corresponding target indication information of the target lane. The embodiment of the invention can display the indication information aiming at the lane level, improves the fineness degree of the displayed indication information and provides possibility for guaranteeing the driving safety of the vehicle.
Description
Technical Field
The embodiment of the invention relates to the technical field of rendering, in particular to an indication information display method and device, navigation equipment and a storage medium.
Background
How to display the indication information (such as speed limit information, congestion degree information, etc.) beneficial to driving in the navigation guidance process is one of the very important research directions. For example, the speed limit information of the road is displayed, so that a user can intuitively know the speed limit requirement of the road in the driving process, and the driving safety of a vehicle can be improved.
However, the indication information displayed at present is generally based on road grade, and the displayed indication information is low in fineness degree, so that the safety of vehicle driving is difficult to guarantee.
Disclosure of Invention
In view of this, embodiments of the present invention provide an indication information display method and apparatus, a navigation device, and a storage medium, so as to improve the fineness of the displayed indication information and provide possibility for guaranteeing the safety of vehicle driving.
In order to solve the above problems, embodiments of the present invention provide the following technical solutions:
an indication information display method comprises the following steps:
determining a target lane;
determining target indication information corresponding to the target lane from preset lane-level map data;
at least carrying out graphical processing on the target indication information to obtain image textures of the target indication information;
and rendering the image texture on a screen to show the corresponding target indication information of the target lane.
An embodiment of the present invention further provides an indication information display apparatus, including:
the target lane determining module is used for determining a target lane;
the target indication information determining module is used for determining target indication information corresponding to the target lane from preset lane-level map data;
the image texture obtaining module is used for at least carrying out graphical processing on the target indication information to obtain the image texture of the target indication information;
and the rendering module is used for rendering the image texture on a screen so as to display the corresponding target indication information of the target lane.
An embodiment of the present invention further provides a navigation apparatus, where the navigation apparatus includes: at least one memory and at least one processor; the memory stores a program, and the processor calls the program to realize the indication information display method.
The embodiment of the invention also provides a storage medium, and the storage medium stores a program for realizing the indication information display method.
According to the indication information display method provided by the embodiment of the invention, the corresponding target indication information of the target lane can be determined based on the lane-level map data, so that after the image texture of the target indication information is obtained, the image texture of the target indication information can be rendered on a screen to display the corresponding target indication information of the target lane; therefore, the embodiment of the invention can display the indication information aiming at the lane level, and the fineness of the displayed indication information is improved, so that the accurate and safe driving decision can be realized according to the lane level indication information in scenes such as navigation guidance, and the like, and the possibility is provided for guaranteeing the driving safety of the vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a block diagram of a hardware structure of a navigation device according to an embodiment of the present invention;
fig. 2 is a flowchart of an indication information displaying method according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating rendering image textures on a screen according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for rendering an image texture to a target lane according to an embodiment of the present invention;
FIG. 5 is a schematic center line view of a roadway provided in an embodiment of the present invention;
FIG. 6 is a schematic diagram of rendering an image texture onto a target lane according to an embodiment of the present invention;
FIG. 7 is a flowchart of another method for rendering an image texture to a target lane according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a method for determining a display position of an image texture on a target lane according to an embodiment of the present invention;
FIG. 9 is another schematic diagram of rendering an image texture onto a target lane according to an embodiment of the present invention;
FIG. 10 is another flowchart of a method for displaying indication information according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a generation of a speed limit circle card image provided by an embodiment of the present invention;
FIG. 12 is a schematic view of rendering a speed limit sign image onto a destination lane provided by an embodiment of the present invention;
fig. 13 is a block diagram of an indication information display device according to an embodiment of the present invention.
Detailed Description
Currently, map data is generally at a road level, that is, map data is created in units of roads, such map data cannot meet the requirements of scenes such as automatic driving and assisted driving, and in order to meet new requirements, map manufacturers start to provide lane-level map data, so that it is a trend in the industry to develop a navigation technology suitable for lane-level map data. In view of this, embodiments of the present invention provide an improved information displaying method and apparatus, a navigation device, and a storage medium, which improve the fineness of the displayed indication information by displaying the indication information of lane level, and provide possibility for assisting driving and ensuring the safety of vehicle driving.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As an optional implementation of the disclosure of the embodiment of the present invention, fig. 1 shows a block diagram of an optional hardware structure of a navigation device provided in the embodiment of the present invention; the navigation equipment can be a vehicle machine equipment arranged in a vehicle, and the navigation equipment is used for carrying out information interaction and control with the vehicle through a vehicle body communication bus and also can be used for carrying out information interaction with a network through a communication interface; in another alternative implementation, the navigation device may also be a terminal device, such as a smartphone, a tablet computer, or the like, that is placed on the vehicle but is independent of the vehicle.
Referring to fig. 1, the navigation apparatus may include: a processor 10, a communication interface 20, a memory 30, a communication bus 40 and a display screen 50;
in the embodiment of the present invention, the processor 10, the communication interface 20, the memory 30, and the display screen 50 may complete communication with each other through the communication bus 40; obviously, the communication connection of the processor 10, the communication interface 20, the memory 30 and the display screen 50 shown in fig. 1 is only an optional way;
optionally, the communication interface 20 may be an interface of a communication module, such as an interface of a GSM (Global System for mobile communications) module, an LTE (Long Term Evolution) module, and the like; the navigation device can perform information interaction with a network server (such as a navigation server, a map server and the like) through the communication interface 20;
the processor 10 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention;
the memory 30 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory; in the embodiment of the present invention, the memory 30 may store a program for implementing the indication information display method provided in the embodiment of the present invention, and the processor 10 may call the program stored in the memory 30 to implement the indication information display method provided in the embodiment of the present invention;
the display screen 50 may be a touch display screen or a display component such as an LED display screen; in an embodiment of the present invention, the display screen 50 may be controlled by the processor 10 to display relevant information, such as an electronic map, lane speed limit information, and the like.
Alternatively, the above illustration is only one optional hardware structure of the navigation device provided by the embodiment of the present invention; it should be noted that the navigation device may also include other devices (not shown) that may not be necessary for understanding the disclosure of the embodiments of the present invention, such as a sound card; these other components may not be necessary to understand the disclosure of embodiments of the present invention, which are not individually described herein.
In the prior art, road-level map data are used for displaying road-level indication information, and the displayed indication information has the problem of low fineness.
It is understood that a road is generally divided into a plurality of lanes according to lane lines (a road may be considered as a set of lanes), for example, a road may include three lanes, etc.; compared with road-level map data, the lane-level map data provided by the embodiment of the invention is high-precision map data. There are various standards for lane-level map data, and the technical solution provided by the embodiment of the present invention is not limited to a certain specification. For example, when the standard used for the Lane-level map data is the NDS (Navigation data standard) standard, the Lane is represented as Lane Group.
Based on the idea of using lane-level map data to present lane-level indication information, fig. 2 shows an alternative flowchart of an indication information presentation method provided by an embodiment of the present invention, which may be executed by a navigation device, for example, by a processor of the navigation device; referring to fig. 2, the method may include:
and step S100, determining a target lane.
In the embodiment of the present invention, the target lane may be a lane associated with the indication information displayed in the embodiment of the present invention, that is, the embodiment of the present invention displays the indication information for the target lane; the number of target lanes may be at least one.
In one aspect, the target lane may be any lane in a road network.
On the other hand, the target lane may be each lane corresponding to the current road of the vehicle (i.e., the road on which the vehicle is located);
optionally, the embodiment of the present invention may determine the current position of the vehicle, and determine the current road of the vehicle matching the current position of the vehicle, so as to determine each lane corresponding to the current road of the vehicle, and further use each determined lane as a target lane, thereby implementing determination of the target lane;
in an example, the embodiment of the present invention may determine the target lane by using road-level map data and lane-level map data, and specifically, the embodiment of the present invention may determine the current position of the vehicle, and then use a road matched with the current position of the vehicle as the current road of the vehicle from the road-level map data, and further determine each lane corresponding to the current road of the vehicle from the lane-level map data, and use each lane corresponding to the current road of the vehicle as the target lane.
Since the road-level map data records information, such as road identification, in units of roads; the lane-level map data records information in units of lanes, for example, indication information of the lanes, lane marks and road marks corresponding to the lane marks; it will be appreciated that both road and lane markings are generally unique. Based on this, specifically, in an optional implementation of step S100, in the embodiment of the present invention, a road identifier of a road matching the current position of the vehicle is determined from the road-level map data according to the current position of the vehicle, and further, a lane identifier corresponding to the road identifier is determined from the lane-level map data, where the lane identifier represents the target lane.
In another example, embodiments of the present invention may implement determining a target lane using only lane-level map data; for example, after the current position of the vehicle is determined, a lane matching the current position of the vehicle is taken as a target lane from the lane-level map data.
On the other hand, the target lane may further include, in addition to each lane corresponding to the current road of the vehicle, each lane corresponding to a road having a connection relationship with the current road of the vehicle, and the like; for example, the vehicle is in a navigation state, a road having a connection relationship with the current road of the vehicle can be obtained through the navigation path, and if the vehicle is in a cruising state (non-navigation state), each road having a connection relationship with the current road of the vehicle can be acquired from the map data.
Furthermore, in the embodiment of the present invention, the road on which the vehicle is most likely to travel may also be determined from the roads that have a connection relationship with the current road of the vehicle, and each lane corresponding to the road on which the vehicle is most likely to travel may be regarded as the target lane.
Some examples of target lanes are shown above, which are, of course, only optional, and other examples of target lanes may also be supported by embodiments of the present invention, for example, all lanes in the map data may also be considered as target lanes; embodiments of the present invention are not limited to a determined target lane.
Optionally, in determining the current position of the vehicle, the embodiment of the present invention may be implemented by a positioning technology, that is, determining the current position of the vehicle by using a positioning technology, where positioning signals depended on by the positioning technology include, but are not limited to, at least one of the following: GPS (Global Positioning System) signals, beidou signals, base station signals, and the like.
And step S110, determining target indication information corresponding to the target lane from preset lane-level map data.
In an embodiment of the present invention, the attributes of the lanes of the lane-level map data record may include at least: indication information of a lane; after the target lane is determined, the embodiment of the invention can determine the indication information of the target lane from the lane-level map data so as to display the lane-level indication information and improve the fineness of the displayed indication information. In one example, the indication information of the lane may include: speed limit information of the lane, length and width of the lane and the like; the indication information of the lane can be made according to the lane condition of the actual road, and the embodiment of the invention is not limited to the content of the indication information.
When the target lane determined in step S100 is the corresponding lane identification, an optional implementation of step S110 is as follows: from the indication information corresponding to each lane identification recorded in the lane-level map data, the target indication information corresponding to the lane identification of the target lane is determined, so as to determine the target indication information corresponding to the target lane (in the embodiment of the present invention, the indication information of the target lane may be referred to as target indication information).
And step S120, at least carrying out graphical processing on the target indication information to obtain the image texture of the target indication information.
Optionally, after determining the target indication information corresponding to the target lane, the embodiment of the present invention may generate an image texture for the target indication information; the process of generating the image texture of the target indication information may be considered as follows: and generating a corresponding graph according to the target indication information.
In an optional implementation, the embodiment of the present invention may generate a graph corresponding to the target indication information (for example, perform graphical processing on the target indication information), and obtain a predetermined background texture; then, fusing a graph corresponding to the target indication information with a preset background texture by using an image fusion technology to obtain an image texture of the target indication information;
optionally, the process of fusing the graphics corresponding to the target indication information and the background texture may be considered as follows: merging the pixel value of the graph corresponding to the target indication information and the pixel value of the background texture; for example, the pixel value of the graphic corresponding to the target indication information may be used to cover the pixel value of the background texture.
The above manner is based on the situation of setting the background for the image texture, and of course, the embodiment of the present invention may not set the background for the image texture, for example, the graphics corresponding to the target indication information may be directly used as the image texture of the target indication information.
Therefore, the embodiment of the invention can at least carry out graphical processing on the target indication information so as to obtain the image texture of the target indication information; for example, the target indication information is subjected to graphical processing to obtain a graph corresponding to the target indication information, and the graph corresponding to the target indication information is used as the image texture; for another example, the target indication information is subjected to graphical processing to obtain a graph corresponding to the target indication information, and the graph corresponding to the target indication information is fused with a predetermined background texture to obtain the image texture.
And S130, rendering the image texture on a screen to display the corresponding target indication information of the target lane.
Optionally, after the image texture of the target indication information is generated, the embodiment of the present invention may render the image texture of the target indication information only on the screen of the navigation device, so as to display the target indication information corresponding to the target lane on the screen of the navigation device.
In an optional implementation, the embodiment of the invention can render the image texture of the target indication information on the target lane in the electronic map displayed on the screen, so as to realize the associated display of the target lane and the indication information thereof;
in another alternative implementation, the embodiment of the present invention may render the image texture of the target indication information at a predetermined display position of the electronic map displayed on the screen; and displaying the incidence relation between the image texture and the target lane at the preset display position to realize the incidence display of the target lane and the indication information thereof.
According to the indication information display method provided by the embodiment of the invention, the corresponding target indication information of the target lane can be determined based on the lane-level map data, so that after the image texture of the target indication information is obtained, the image texture of the target indication information can be rendered on a screen to display the corresponding target indication information of the target lane; therefore, the embodiment of the invention can display the indication information aiming at the lane level, and the fineness of the displayed indication information is improved, so that the accurate and reliable driving decision can be realized according to the lane level indication information in scenes such as navigation guidance, and the like, and the possibility is provided for guaranteeing the driving safety of the vehicle.
Optionally, the navigation device may execute the indication information display method provided by the embodiment of the present invention when detecting that the vehicle starts to run, and display the indication information of each lane of the road. Of course, it is not excluded that the indication information displaying method provided by the embodiment of the present invention is performed under other possible circumstances, for example, the indication information displaying method provided by the embodiment of the present invention is performed under a test environment, so as to verify the effect of the indication information displaying method provided by the embodiment of the present invention.
For example, fig. 3 shows an alternative schematic of rendering image textures on a screen, in fig. 3, a thick dotted line represents a lane boundary line, and referring to fig. 3, lane 1, lane 2 and lane 3 shown in an electronic map are target lanes, and the upper left corner of the electronic map is used as a predetermined display position, and image textures of target indication information a, b and c can be rendered; and displaying the incidence relation between the image texture of the target indication information a and the lane 1, displaying the incidence relation between the image texture of the target indication information b and the lane 2, and displaying the incidence relation between the image texture of the target indication information c and the lane 3, thereby realizing the display of the incidence relation between the image texture and the target lane at the preset display position of the electronic map.
For the foregoing preferred scheme of rendering the image texture of the target indication information onto the target lane in the electronic map displayed on the screen of the navigation device according to the embodiment of the present invention, the preferred scheme may include:
determining a rendering position of an image texture of the target indication information on the target lane; rendering the image texture to a target lane in an electronic map displayed on a screen of the navigation equipment according to the rendering position;
alternatively, rendering the image texture onto the target lane may be understood as: in electronic maps, image textures are rendered onto the road surface of a target lane.
Further, the rendering position of the image texture on the target lane may include: the display position and the display positive direction of the image texture on the target lane;
correspondingly, for any target lane, the embodiment of the invention can determine the display position of the image texture on the target lane and determine the display positive direction of the image texture on the target lane; therefore, the embodiment of the invention can render the image texture to the target lane in the electronic map displayed on the screen according to the display position and the display positive direction of the image texture;
optionally, the display positive direction of the image texture on the target lane may be consistent with the passing direction of the target lane; the embodiment of the invention can determine the passing direction of the target lane, and the passing direction of the target lane is determined as the positive display direction of the image texture.
It should be noted that the display position and the positive display direction of the image texture on the target lane are only one alternative form of the rendering position of the image texture on the target lane, and other forms of rendering positions may also be supported by the embodiment of the present invention.
As an example, the display position of the image texture of the target indication information on the target lane may be a road surface center point of the target lane; the positive display direction of the image texture of the target indication information in the target lane may be a passing direction of the target lane.
Alternatively, the image texture of the object indication information may be rendered on the object lane of the electronic map displayed on the screen by the method shown in fig. 4, which may be executed by the navigation device, for example, by a processor of the navigation device, and referring to fig. 4, the method may include:
and step S200, determining the midpoint position of the central line of the target lane.
Optionally, the midpoint position of the center line of the target lane may be the center of the road surface of the target lane; the embodiment of the invention can determine the center line of the target lane and then determine the midpoint position of the center line of the target lane. For example, FIG. 5 shows the center line of each lane, referenced; in fig. 5, a thick broken line indicates a lane boundary line, and a thin broken line indicates a center line of a lane.
As an alternative implementation, the lane-level map data may record shape points (also referred to as shape points, a lane may be represented by a series of discrete shape points) of each lane in addition to the indication information of each lane; the shape points of the lane may include: the shape point of the boundary line of the lane and the shape point of the center line of the lane;
correspondingly, the embodiment of the invention can determine the shape point of the target lane according to the lane-level map data, thereby determining the shape point of the central line of the target lane from the shape point of the target lane; the determined center line shape point may be a representation of the center line of the target lane, and the position of the center shape point of the center line shape point of the target lane is determined as the position of the center point of the center line of the target lane.
And step S210, taking the midpoint position of the central line of the target lane as the display position of the image texture on the target lane.
And step S220, determining the passing direction of the target lane.
Optionally, the embodiment of the present invention may determine the shape point vector direction corresponding to the center line shape point of the target lane, so as to determine the shape point vector direction corresponding to the center line shape point of the target lane as the passing direction of the target lane.
The embodiment of the invention can determine the corresponding shape point vector direction of the central line shape point of the target lane according to the arrangement sequence of the central line shape points of the target lane; for example, the embodiment of the present invention may determine two adjacent shape points in the center line shape point of the target lane, determine a result vector obtained by subtracting the vectors of the two adjacent shape points, determine a positive direction corresponding to the result vector as the shape point vector direction corresponding to the center line shape point of the target lane, and take the shape point vector direction as the passing direction of the target lane.
In another alternative implementation, the lane-level map data records the passing direction of each lane, so that the embodiment of the invention can determine the passing direction of the target lane from the lane-level map data.
And step S230, determining the passing direction of the target lane as the display positive direction of the image texture.
Optionally, the execution sequence of steps S200 to S210 and the execution sequence of steps S220 to S230 may not be distinguished.
And step S240, rendering the image texture to the target lane in the electronic map displayed on the screen according to the display position and the display positive direction.
For example, fig. 6 shows an alternative schematic for rendering an image texture onto a target lane, where lane 1, lane 2 and lane 3 shown in the electronic map are the target lane, and the lane surfaces of lane 1, lane 2 and lane 3 are respectively rendered with image textures of target indication information a, b and c; the image texture of the target indication information a is displayed at the midpoint position of the center line of the lane 1, the display positive direction of the image texture of the target indication information a is consistent with the passing direction of the lane 1, and the image textures of the target indication information b and the target indication information c are displayed in the same way.
The method shown in fig. 4 can render the image texture of the corresponding target indication information at the center of the road surface of each target lane of the electronic map, thereby showing the lane-level indication information; and in the method shown in fig. 4, the image texture of the target indication information is directly rendered in the center of the road surface of the target lane, so that the rendering effect and reality are higher.
Since the position of the vehicle is always in the change when the vehicle runs on the target lane, the screen needs to continuously display the image texture of the target indication information to adapt to the change of the vehicle position, however, if the position of the vehicle is changed once, the rendering position is determined according to the scheme, which undoubtedly has high requirements on the hardware processing capacity of the navigation device, and therefore, in order to reduce the requirements on the hardware processing capacity of the navigation device and enhance the universality of the scheme, the invention provides an alternative implementation method. Accordingly, FIG. 7 illustrates another alternative method flow for rendering image textures of target indication information to a target lane according to an embodiment of the present invention; alternatively, the method of FIG. 7 may be performed by a navigation device, illustratively a processor of the navigation device; referring to fig. 7, the method may include:
and step S300, determining a plurality of display positions of the image texture on the target lane.
Optionally, the embodiment of the present invention may determine the position of each predetermined distance on the target lane as the display position of the image texture, so as to determine a plurality of display positions of the image texture on the target lane; for example, as shown in fig. 8, the embodiment of the present invention may determine, starting from a midpoint position of a center line of the target lane, positions at intervals of a predetermined distance as display positions of the image texture in a passing direction and a passing opposite direction of the target lane, respectively (an upward arrow in the figure indicates the passing direction, and a downward arrow in the figure indicates the passing opposite direction), and the dots in fig. 8 may indicate the display positions of the image texture; obviously, the embodiment of the present invention may also determine the position at a predetermined distance from the start position of the center line of the target lane as the display position of the image texture;
the above description is given by taking the example that the display positions of the image textures are spaced by a predetermined distance, and the embodiment of the present invention may also support the case that the display positions of the image textures are not uniformly spaced.
Step S310, determining the passing direction of the target lane; and determining the passing direction of the target lane as the positive display direction of the image texture.
Optionally, the step S310 may be introduced with reference to the corresponding parts in the foregoing, and will not be described herein again.
And step S320, rendering the image texture to the target lane of the electronic map displayed on the screen at each display position according to the display positive direction.
For example, fig. 9 shows another schematic diagram of rendering an image texture onto a target lane, where lanes 1, 2 and 3 shown in the electronic map are target lanes, and multiple positions of the lane surfaces of lanes 1, 2 and 3 are rendered with image textures of target indication information a, b and c, respectively; therefore, when the vehicle runs on the target lane, the electronic map continuously shows the target indication information of the target lane.
In the above solution, according to the embodiment of the present invention, the plurality of rendering positions of the image texture of the target indication information on the target lane may be obtained, and the image texture of the target indication information may be rendered at one time at the plurality of rendering positions on the target lane, so that even if the position of the vehicle is constantly changed while the vehicle is traveling on the target lane, the target indication information may be continuously and quickly displayed according to the image texture rendered at the plurality of rendering positions on the target lane, without determining the rendering position of the image texture once when the position of the vehicle is changed, thereby reducing the hardware processing pressure of the navigation device, and reducing the requirement of the indication information display method provided by the embodiment of the present invention on the hardware processing capability of the navigation device.
As an optional implementation of the disclosure of the embodiment of the present invention, the indication information displayed in the embodiment of the present invention may be speed limit information of a lane, and by using the indication information display method provided in the embodiment of the present invention, lane-level speed limit information may be displayed; alternatively, fig. 10 shows another optional flow of the indication information presentation method provided by the embodiment of the present invention, which may be executed by the navigation device, for example, by a processor of the navigation device; referring to fig. 10, the method may include:
and step S400, determining a target lane.
And step S410, determining target speed limit information corresponding to the target lane from preset lane level map data.
Optionally, the recording of the indication information of each lane by the lane-level map data may include: the lane-level map data records the corresponding speed limit information of each lane; namely, the speed limit information can be an optional form of indication information; of course, the lane-level map data may further record other information such as the shape and the point of the lane;
correspondingly, the embodiment of the invention can determine the corresponding target speed limit information of the target lane from the lane-level map data according to the corresponding speed limit information of each lane recorded by the lane-level map data.
And step S420, carrying out graphical processing on the target speed limit information to obtain a graph corresponding to the target speed limit information.
Optionally, the speed limit information may be represented by a speed value, and performing graphical processing on the target speed limit information may be considered as: and generating the font graph according to the numerical value. For example, a corresponding graph can be generated from the speed value represented by the target speed limit information, so as to obtain a graph corresponding to the target speed limit information.
And step S430, obtaining the background texture of the speed limit sign image.
In an embodiment of the present invention, the image texture of the target speed limit information may be a speed limit sign image of the target speed limit information.
Optionally, the background texture of the speed-limit sign image may be pre-made picture information, which represents a background part of the speed-limit sign image; the speed limit indicating plate image can be formed by fusing an image corresponding to the speed limit information and background textures; optionally, the pattern of the background texture may be made according to a background portion of the speed limit sign disposed on the actual road, and of course, the background texture of the speed limit sign image may also be set in the embodiment of the present invention.
Optionally, in the embodiment of the present invention, the shape of the speed-limit signboard image may be a square or a circle, and the specific shape of the time-limit signboard image is not limited in the embodiment of the present invention;
taking a circular speed limit sign image as an example (the circular speed limit sign image can be manufactured by referring to a speed limit signboard on an actual road), the background texture can be outer circle texture of the speed limit sign image, and the pattern of the background texture can be manufactured according to an outer signboard of the speed limit signboard arranged on the actual road.
Optionally, there may be no obvious sequence between step S420 and step S430, for example, the two steps may be executed synchronously.
And step S440, according to an image fusion technology, fusing the image corresponding to the target speed limit information with the background texture to obtain a speed limit indication board image corresponding to the target speed limit information.
Optionally, the embodiment of the present invention may combine the pixel value of the graph corresponding to the target speed limit information with the pixel value of the background texture, for example, the pixel value of the graph corresponding to the target speed limit information may be used to cover the pixel value of the background texture.
For example, taking a speed limit sign image as a speed limit circle image as an example, fig. 11 shows an alternative schematic for fusing a graph corresponding to target speed limit information with outer circle textures, which can be referred to.
Step S450, determining the midpoint position of the center line of the target lane; and determining the middle point position of the central line of the target lane as the display position of the speed limit indicating plate image corresponding to the target lane.
Optionally, the lane-level map data may further record the shape and point of the lane; according to the embodiment of the invention, the shape point of the target lane can be determined according to the lane-level map data, and the central line shape point of the target lane can be determined according to the shape point of the target lane; and determining the midpoint position of the center line shape point of the target lane as the midpoint position of the center line of the target lane.
Step S460, determining the passing direction of the target lane; and determining the passing direction of the target lane as the display positive direction of the speed limit indicator image corresponding to the target lane.
Optionally, the embodiment of the present invention may determine the shape and point vector direction corresponding to the center line shape and point of the target lane, to obtain the shape and point vector direction corresponding to the target lane, so that the shape and point vector direction corresponding to the target lane may be determined as the passing direction of the target lane.
Optionally, the steps S410 to S440 may not have a obvious sequence with the steps S450 and S460, and if the steps S410 to S440 are executed first, and then the steps S450 and S460 are executed, the steps may also be executed synchronously.
And step S470, rendering the speed-limiting sign image to the target lane in the electronic map displayed on the screen according to the display position and the display positive direction of the speed-limiting sign image.
According to the embodiment of the invention, the speed-limiting sign image can be rendered on the road surface of the target lane according to the display position and the display positive direction of the speed-limiting sign image.
For example, taking the speed-limit signboard image as an example, fig. 12 shows an alternative illustration for rendering the speed-limit signboard image on the target lane, which can be referred to; it can be seen that the speed limit information of different lanes of the same road is not the same, for example, in the case of a three-lane road, the speed limit information of the inner lane is 60 km/h, and the speed limit information of the outer lane is 80 km/h; of course, the embodiment of the invention also supports the situation that the speed limit information of each lane of the same road is the same. Therefore, compared with the traditional scheme that the speed limit information can only be displayed at the road level, the speed limit information can be displayed at the lane level in a fine mode, and the fine degree of the displayed speed limit information is improved (the speed limit information is an optional form of the indication information of the lane).
Possible alternatives to the steps of the method flow of fig. 10 are described above with reference to the preceding description; if the steps S420 to S440 are performed, only the graph corresponding to the target speed limit information may be generated, that is, the graph corresponding to the target speed limit information may be directly used as the image texture of the target speed limit information; of course, step S450, step S460 and step S470 can be replaced by the alternative ways described above, and will not be described again here.
As an optional application example of the embodiment of the present invention, in a scene such as a navigation guide, a navigation device may display an electronic map on a screen of the navigation device by using the indication information display method provided by the embodiment of the present invention, and display indication information of a lane level on a lane or a predetermined display position of the electronic map; therefore, the embodiment of the invention can display the indication information aiming at the lane level, and the fineness of the displayed indication information is improved, so that the accurate and reliable driving decision can be realized according to the lane level indication information in scenes such as navigation guidance, and the like, and the possibility is provided for further guaranteeing the driving safety of the vehicle.
While various embodiments of the present invention have been described above, various alternatives described in the various embodiments can be combined and cross-referenced without conflict to extend the variety of possible embodiments that can be considered disclosed and disclosed in connection with the embodiments of the present invention.
In the following, the indication information display apparatus provided in the embodiment of the present invention is introduced, and the indication information display apparatus described below may be regarded as a program module architecture that is required to be set by the navigation device to implement the indication information display method provided in the embodiment of the present invention. The contents of the indication information display device described below may be referred to in correspondence with the contents of the indication information display method described above.
Fig. 13 is a block diagram of an indication information display apparatus according to an embodiment of the present invention, where the indication information display apparatus is applicable to a navigation device, and referring to fig. 13, the indication information display apparatus may include:
a target lane determination module 100 for determining a target lane;
a target indication information determining module 110, configured to determine target indication information corresponding to the target lane from preset lane-level map data;
an image texture obtaining module 120, configured to perform graphical processing on at least the target indication information to obtain an image texture of the target indication information;
and the rendering module 130 is configured to render the image texture on a screen to show the target indication information corresponding to the target lane.
Optionally, the rendering module 130 is configured to render the image texture on a screen to show the target indication information corresponding to the target lane, and may specifically include:
determining a rendering position of the image texture on a target lane;
rendering the image texture onto the target lane in an electronic map displayed on a screen according to the rendering position.
Optionally, the rendering position may include a display position and a display positive direction; the rendering module 130 is configured to determine a rendering position of the image texture on the target lane, and may specifically include:
determining a display position of the image texture on the target lane;
and determining the passing direction of the target lane, and determining the passing direction as the display positive direction of the image texture on the target lane.
Optionally, the rendering module 130 is configured to render the image texture to the target lane in an electronic map displayed on a screen according to the rendering position, and may specifically include:
and rendering the image texture to a target lane in the electronic map displayed on the screen according to the display position and the display positive direction.
Optionally, the rendering module 130 is configured to determine a display position of the image texture on the target lane, and may specifically include:
and determining the midpoint position of the central line of the target lane, and taking the midpoint position as the display position of the image texture on the target lane.
Optionally, the lane-level map data records shape points of each lane; the rendering module 130 is configured to determine a midpoint position of the center line of the target lane, and may specifically include:
determining the shape point of the target lane according to the lane-level map data;
determining the shape point of the central line of the target lane according to the shape point of the target lane;
and determining the position of the middle point of the center line shape point of the target lane as the position of the middle point of the center line of the target lane.
Optionally, the rendering module 130 is configured to determine a passing direction of the target lane, and may specifically include:
determining the corresponding shape point vector direction of the center line shape point of the target lane, and determining the shape point vector direction as the passing direction of the target lane.
Optionally, in another implementation, the rendering module 130 is configured to determine a display position of the image texture on the target lane, and may specifically include:
and determining the position of each preset distance on the target lane as the display position of the image texture on the target lane.
Optionally, the image texture obtaining module 120 is configured to perform at least graphical processing on the target indication information to obtain the image texture of the target indication information, and may specifically include:
carrying out graphical processing on the target indication information to obtain a graph corresponding to the target indication information;
and fusing the graph and a preset background texture to obtain the image texture of the target indication information.
Optionally, in another implementation, the rendering module 130 is configured to render the image texture on a screen to show the target indication information corresponding to the target lane, and may specifically include:
rendering the image texture to a preset display position of an electronic map displayed on a screen, and displaying the incidence relation between the image texture and the target lane at the preset display position.
Optionally, the target lane determining module 100 is configured to determine a target lane, and may specifically include:
determining the current position of the vehicle;
map matching is carried out on the current position of the vehicle and preset road level map data, and the road where the vehicle is located is determined;
and determining each lane corresponding to the road where the vehicle is located from the lane-level map data, and setting each determined lane as the target lane.
The indication information display device provided by the embodiment of the invention can be loaded in the navigation equipment in a program form; optionally, an optional hardware structure of the navigation device provided in the embodiment of the present invention may be as shown in fig. 1, where the navigation device may include: the display device comprises at least one memory and at least one processor, wherein the memory stores programs, and the processor calls the programs to realize the indication information display method provided by the embodiment of the invention.
Optionally, an embodiment of the present invention further provides a storage medium, where the storage medium may store a program for implementing the indication information display method provided in the embodiment of the present invention.
Optionally, the program may be specifically configured to:
determining a target lane;
determining target indication information corresponding to the target lane from preset lane-level map data;
at least carrying out graphical processing on the target indication information to obtain image textures of the target indication information;
and rendering the image texture on a screen to show the corresponding target indication information of the target lane.
Optionally, the refining function and the expanding function of the program may be described with reference to the corresponding parts in the foregoing description, and are not described again here.
Although the embodiments of the present invention have been disclosed, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. An indication information display method is characterized by comprising the following steps:
determining a target lane;
determining target indication information corresponding to the target lane from preset lane-level map data;
at least carrying out graphical processing on the target indication information to obtain image textures of the target indication information;
and rendering the image texture on a screen to show the corresponding target indication information of the target lane.
2. The indication information displaying method according to claim 1, wherein said rendering the image texture on the screen to display the corresponding target indication information of the target lane comprises:
determining a rendering position of the image texture on a target lane;
rendering the image texture onto the target lane in an electronic map displayed on a screen according to the rendering position.
3. The indication information presentation method according to claim 2, wherein the rendering position includes a display position and a display positive direction; the determining a rendering position of the image texture on a target lane comprises:
determining a display position of the image texture on the target lane;
and determining the passing direction of the target lane, and determining the passing direction as the display positive direction of the image texture on the target lane.
4. The indication information presentation method according to claim 3, wherein said rendering the image texture onto the target lane in the electronic map displayed on the screen according to the rendering position comprises:
and rendering the image texture to the target lane in the electronic map displayed on the screen according to the display position and the display positive direction.
5. The indication information presentation method according to claim 3, wherein the determining a display position of the image texture on the target lane comprises:
and determining the midpoint position of the central line of the target lane, and taking the midpoint position as the display position of the image texture on the target lane.
6. The indication information presentation method according to claim 5, wherein the lane-level map data records the shape point of each lane; the determining a midpoint position of a centerline of the target lane comprises:
determining the shape point of the target lane according to the lane-level map data;
determining the shape point of the central line of the target lane according to the shape point of the target lane;
and determining the position of the middle point of the center line shape point of the target lane as the position of the middle point of the center line of the target lane.
7. The indication information presentation method of claim 6, wherein the determining the traffic direction of the target lane comprises:
and determining the shape point vector direction corresponding to the shape point of the central line of the target lane, and determining the shape point vector direction as the passing direction of the target lane.
8. The indication information presentation method according to claim 3, wherein the determining a display position of the image texture on the target lane comprises:
and determining the position of each preset distance on the target lane as the display position of the image texture on the target lane.
9. The indication information display method of claim 1, wherein the at least performing the graphic processing on the target indication information to obtain the image texture of the target indication information comprises:
carrying out graphical processing on the target indication information to obtain a graph corresponding to the target indication information;
and fusing the graph and a preset background texture to obtain the image texture of the target indication information.
10. The indication information displaying method according to claim 1, wherein said rendering the image texture on the screen to display the corresponding target indication information of the target lane comprises:
rendering the image texture to a preset display position of an electronic map displayed on a screen, and displaying the incidence relation between the image texture and the target lane at the preset display position.
11. The indication information presentation method according to claim 1, wherein the determining a target lane comprises:
determining the current position of the vehicle;
map matching is carried out on the current position of the vehicle and preset road level map data, and the road where the vehicle is located is determined;
and determining each lane corresponding to the road where the vehicle is located from the lane-level map data, and setting each determined lane as the target lane.
12. An indication information display device, comprising:
the target lane determining module is used for determining a target lane;
the target indication information determining module is used for determining target indication information corresponding to the target lane from preset lane-level map data;
the image texture obtaining module is used for at least carrying out graphical processing on the target indication information to obtain the image texture of the target indication information;
and the rendering module is used for rendering the image texture on a screen so as to display the corresponding target indication information of the target lane.
13. A navigation device, characterized in that the navigation device comprises: at least one memory and at least one processor; the memory stores a program that the processor calls to implement the indication information presentation method of any one of claims 1 to 11.
14. A storage medium storing a program for implementing the instruction information presentation method according to any one of claims 1 to 11.
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| CN201811458967.9A CN111256725A (en) | 2018-11-30 | 2018-11-30 | Indication information display method and device, navigation equipment and storage medium |
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| CN201811458967.9A CN111256725A (en) | 2018-11-30 | 2018-11-30 | Indication information display method and device, navigation equipment and storage medium |
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