CN113674435A - Image processing method, electronic map display method and device and electronic equipment - Google Patents
Image processing method, electronic map display method and device and electronic equipment Download PDFInfo
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Abstract
The embodiment of the application provides an image processing method of geographic elements, an electronic map display method, an electronic map display device and electronic equipment; the image processing method of the geographic elements comprises the following steps: obtaining an inverted image of the first target geographic element; obtaining an image of a second target geographic element; obtaining a mapping image for rendering the reflection of the first target geographic element in the electronic map according to the image of the second target geographic element and the reverse image. By adopting the image processing method for the geographic elements, the mapping image for rendering the reflection of the first target geographic element in the electronic map can be obtained, so that the reflection of the first target geographic element can be displayed in the electronic map, and compared with the existing electronic map, the displayed first target geographic element is more vivid.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to an image processing method and apparatus for geographic elements, an electronic device, and a computer storage medium. The application also relates to an electronic map display method, an electronic map display device, electronic equipment and a computer storage medium.
Background
With the continuous improvement of modern life quality, the frequency of people going out is more and more frequent. In particular, in recent years, people travel by self-driving more and more commonly. In a self-driving trip, most users can use application software with a map navigation function, and the users can drive to the destination conveniently. When the map navigation function is used, the closer the geographic elements (including buildings, roads, rivers, lakes, seas and the like) displayed in the map are to reality, the more realistic the map is, and the easier the user can understand the relationship between the map and the real world.
However, in the existing map, only the relative relationship actually existing between the geographic elements is shown. For example, for a certain road a, there is a building B on the east side, and in the existing map, it is shown that there is a building B on the right side of the road a directly on the map. If there is a river around the building B, the river can be shown on the map. In practice, under certain lighting scenes, the building B has a reversed image in the river, and the inventor finds that the map navigated by the existing map does not show the reversed image of the building B in the river, so that the geographical elements shown by the existing map have a large difference from the real world, and the reality of the geographical elements shown by the map is insufficient.
Disclosure of Invention
The embodiment of the application provides an image processing method of geographic elements, which aims to solve the problem that the existing map display is insufficient in geographic element authenticity. Meanwhile, the embodiment of the application provides an image processing device of geographic elements, an electronic device and a computer storage medium. The embodiment of the application also provides an electronic map display method, an electronic map display device, electronic equipment and a computer storage medium.
The embodiment of the application provides an image processing method of geographic elements, which comprises the following steps:
obtaining an inverted image of the first target geographic element;
obtaining an image of a second target geographic element;
obtaining a map image for rendering an inverted image of the first target geographic element in an electronic map from the image of the second target geographic element and the inverted image.
Optionally, the obtaining an inverted image of the first target geographic element includes:
obtaining a first node and a second node for representing the first target geographic element in an electronic map; the first node and the second node represent a building node and a node of a three-dimensional model of the first target geographic element, respectively;
inverting the first node and the second node respectively to obtain an inverted building node and an inverted three-dimensional model node for representing the first target geographic element in an electronic map;
obtaining an inverted texture node for representing the first target geographic element in an electronic map;
obtaining an inverted image of a first target geographic element based on the inverted building node, the inverted three-dimensional model node, and the inverted texture node.
Optionally, the obtaining an inverted image of the first target geographic element based on the inverted building node, the inverted three-dimensional model node, and the inverted texture node comprises:
obtaining inverted building information for representing the first target geographic element in an electronic map based on the inverted building nodes;
obtaining inverted three-dimensional model information for representing the first target geographic element in an electronic map based on the inverted three-dimensional model nodes;
obtaining, based on the inverted texture node, inverted image texture information for representing the first target geographic element in an electronic map;
obtaining an inverted image of the first target geographic element based on the inverted building information, the inverted three-dimensional model information, and the inverted image texture information.
Optionally, the obtaining a mapping image for rendering the reflection of the first target geographic element in the electronic map according to the image of the second target geographic element and the reverse image includes:
obtaining an overlapping area of the image of the second target geographic element and the inverted image from the image of the second target geographic element and the inverted image;
obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map based on the first template value and the second template value corresponding to the target pixel point in the overlapping area; the first template value is a value of the target pixel point corresponding to a first template adopted for drawing the reverse image, and the second template value is a value of the target pixel point corresponding to a second template adopted for drawing the image of the second target geographic element.
Optionally, the obtaining the mapping image for rendering the reflection of the first target geographic element in the electronic map based on the first template value and the second template value corresponding to the target pixel point in the overlap area includes:
obtaining a first template value and a second template value corresponding to each pixel point in the overlapping area;
obtaining a target template value of each pixel point in the overlapping area based on the first template value and the second template value;
and obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map according to the target template value of each pixel point in the overlapping area.
Optionally, the obtaining the image of the second target geographic element includes:
obtaining an image of the second target geographic element from a database for storing images of geographic elements based on the information of the second target geographic element.
Optionally, the method further includes:
obtaining an image of the first target geographic element from a database for storing images of geographic elements based on the information of the first target geographic element.
Optionally, the obtaining an inverted image of the first target geographic element includes:
and taking the ground plane as a mapping surface, obtaining a mapping image of the first target geographic element relative to the mapping surface, and taking the mapping image of the first target geographic element relative to the mapping surface as an inverted image of the first target geographic element.
Optionally, the method further includes:
providing the map image for rendering the reflection of the first target geographic element in the electronic map as a target map image to a client to show the target map image in the electronic map in the client.
Correspondingly, the embodiment of the application also provides an electronic map display method, which comprises the following steps:
and rendering the reflection of the geographic element in the electronic map based on the mapping image of the geographic element, wherein the mapping image is obtained based on the image processing method of the geographic element.
Optionally, the method further includes:
responding to the detected trigger operation of the user for displaying the image set by the electronic map, and obtaining confirmation information for displaying the image;
the rendering the reflection of the geographic element in the electronic map comprises:
and displaying the mapping image in an electronic map based on the confirmation information for displaying the mapping image.
Optionally, the method further includes:
displaying inquiry information whether the image is displayed in an electronic map or not to a user;
in response to detecting the confirmation operation of the user for the inquiry information, obtaining confirmation information of the user for the inquiry information;
the rendering the reflection of the geographic element in the electronic map comprises:
and displaying the mapping image in an electronic map based on the confirmation information of the user for the inquiry information.
Correspondingly, the embodiment of the application provides an image processing device of geographic elements, which comprises:
an inverted image obtaining unit for obtaining an inverted image of the first target geographic element;
a second image obtaining unit for obtaining an image of a second target geographic element;
a map image obtaining unit, configured to obtain a map image for rendering the reflection of the first target geographic element in the electronic map according to the image of the second target geographic element and the reverse image.
Correspondingly, the embodiment of the present application further provides an electronic map display device, including:
and the rendering unit is used for rendering the reflection of the geographic element in the electronic map based on the mapping image of the geographic element, and the mapping image is obtained based on the image processing method of the geographic element.
Correspondingly, an embodiment of the present application provides an electronic device, including:
a processor;
and the memory is used for storing a computer program which is run by the processor and executes the image processing method and the electronic map display method of the geographic elements.
Correspondingly, the embodiment of the application provides a computer storage medium, wherein a computer program is stored in the computer storage medium, and the computer program is run by a processor to execute the image processing method and the electronic map display method of the geographic elements.
Compared with the prior art, the embodiment of the application has the following advantages:
the embodiment of the application provides an image processing method of geographic elements, when image processing is carried out, firstly, an inverted image of a first target geographic element is obtained; simultaneously, obtaining an image of a second target geographic element; finally, a map image for rendering an inverted image of the first target geographic element in an electronic map is obtained from the image of the second target geographic element and the inverted image. By adopting the image processing method of the geographic elements, the mapping image for rendering the reflection of the first target geographic element in the electronic map can be obtained, so that the reflection of the first target geographic element can be displayed in the electronic map, and compared with the existing electronic map, the displayed first target geographic element is more vivid.
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 described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic view of an application scenario of an image processing method for geographic elements provided in the present application;
FIG. 2 is a flowchart of an image processing method for geographic elements according to a first embodiment of the present application;
FIG. 3 is a schematic diagram of a map image shown in an electronic map according to the present application;
fig. 4 is a schematic diagram of an image processing apparatus for geographic elements according to a third embodiment of the present application;
fig. 5 is a schematic view of an electronic device according to a fifth embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
In order to more clearly show the image processing method for geographic elements provided in the embodiments of the present application, an application scenario of the image processing method for geographic elements provided in the embodiments of the present application is first introduced. The image processing method for the geographic elements, provided by the embodiment of the application, can be applied to obtaining the image for rendering the reflection of the building in some media such as rivers in the electronic map, so that the image for rendering the reflection of the building in the electronic map is displayed in the electronic map, and the scene of the reflection of the building is rendered in the electronic map.
The image processing method for the geographic elements provided above can be applied to the server side for obtaining the image of the reflection of the geographic elements rendered in the electronic map, and therefore, the server side can obtain the image of the reflection of some buildings rendered in the electronic map or the image of the reflection of other types of geographic elements rendered in the electronic map by using the image processing method for the geographic elements provided in the present application. After the server side obtains the mapping image for rendering the reflection of the geographic elements in the electronic map by using the image processing method of the geographic elements, the mapping image is provided for the client side, and the client side can display the mapping image through the electronic map. The map image may be a reflection image of a building.
In the present application, a server is a computing device that provides services such as data processing for a client, and in a specific implementation manner, the server is generally a server or a server cluster. The client is generally an application or software installed on an electronic device, such as a mobile phone, a pc (personal computer) terminal, a tablet computer, or the like, for implementing the image processing method for the geographic elements.
A mobile phone used by a user is used as electronic equipment, and an electronic map application installed on the electronic equipment is used as a client. Therefore, in the present scenario, it may refer to presenting an electronic map in an electronic map application, and specifically, an image of the first target geographic element itself, that is, an image of the first target geographic element, may be presented in the electronic map. In practice, if there is a second target geographical element around the first target geographical element, which may project or map the first target geographical element, there may be a reflection of the first target geographical element in the second target geographical element. For example, if the first target geographic element is a tree and a river is around the tree, the river can be identified as the second target geographic element, and there may be a reflection of the tree in the river. Thus, by means of the second target geographical element, a reflection of the first target geographical element in the second target geographical element may be formed. In the present application, the electronic map may show not only the image of the first target geographic element and the image of the second target geographic element, but also a reflection of the first target geographic element in the second target geographic element.
In particular, the image of the second target geographical element is used to represent the second target geographical element in the electronic map and the image of the first target geographical element is used to represent the first target geographical element in the electronic map. Generally, the image of the target geographic element is an image representing the target geographic element in the electronic map, and the image of the target geographic element is explained here mainly to distinguish the image appearing in the present application, and the image used for rendering the reflection of the first target geographic element in the electronic map may also be referred to as a target image.
In practice, there may be a reflection of the first target geographical element in the second target geographical element. If the reflection image is rendered in the electronic map, the rendering can obtain an object image. The target map image is a map image for representing a reflection of the first target geographic element in the second target geographic element in the electronic map. For example, in the electronic map, if the first target geographic element is a building a, the image of the building a is used as the image of the first target geographic element, and the image of the building a is used for representing the building a in the electronic map. And if the second target geographic element is river B, the image of the river B is used as the image of the second target geographic element, and the image of the river B is used for representing the river B in the electronic map, namely the image of the river B. The map image showing the inverted image of the building a in the river B on the electronic map is a target map image for showing the inverted image of the building a in the river B on the electronic map.
In the existing electronic map application, the electronic map only shows the image of the target geographic element itself, and in practice, even when the second target geographic element exists around the first target geographic element, the image of the first target geographic element and the image of the second target geographic element are only shown in the electronic map, and the image of the first target geographic element and the image of the second target geographic element are only shown in the electronic map, so that the reality of the geographic element shown in the electronic map application is insufficient. Especially, in some scenes that the electronic map is required to show more approximate real content, the existing electronic map application obviously does not meet the requirement.
By adopting the image processing method of the geographic elements, the mapping image for representing the reflection of the first target geographic element in the second target geographic element in the electronic map can be obtained, and after the mapping image is obtained, the mapping image can be displayed in the electronic map. Therefore, compared with the existing electronic map, the mapping image for representing the reflection of the first target geographic element in the second target geographic element in the electronic map is displayed in the electronic map, so that the target geographic element displayed by the electronic map is more vivid.
Based on the interaction process between the server and the client, as shown in fig. 1, it is an application scene diagram of the image processing method for geographic elements in this embodiment. First, the client sends request information for obtaining a mapping image representing a reflection of the first target geographic element in the second target geographic element in the electronic map to the server. After the server obtains the request information, a mapping image for representing the reflection of the first target geographic element in the second target geographic element in the electronic map can be obtained based on the request information. After obtaining the mapping image used for representing the reflection of the first target geographic element in the second target geographic element in the electronic map, the server side further provides the obtained mapping image used for representing the reflection of the first target geographic element in the second target geographic element in the electronic map to the client side.
Specifically, the server side adopts the image processing method of the geographic element of the present application to obtain a mapping image for representing the reflection of the first target geographic element in the second target geographic element in the electronic map as follows: first, obtaining an inverted image of a first target geographic element; simultaneously, obtaining an image of a second target geographic element for representing the second target geographic element in the electronic map; finally, a map image for rendering the reflection of the first target geographic element in the electronic map is obtained from the image of the second target geographic element and the inverted image, the map image being used to represent in the electronic map an image corresponding to the reflection of the first target geographic element formed in the second target geographic element. In the present application, the first target geographical element and the second target geographical element may belong to different categories of geographical elements. In practice, the first target geographical element may form a reflection in the second target geographical element. For example, the first target geographic element may refer to some buildings, and the second target geographic element may refer to some rivers or other geographic elements that may cast a reflection of the first target geographic element.
The application scenario of the image processing method for the geographic element is only one example of the application scenario of the image processing method for the geographic element provided in the present application, and the application scenario is provided to facilitate understanding of the image processing method for the geographic element provided in the present application, and is not used to limit the image processing method for the geographic element provided in the present application. Other application scenarios of the provided image processing method for geographic elements are not repeated in the embodiment of the present application.
First embodiment
A first embodiment of the present application provides an image processing method for geographic elements, which is described below with reference to fig. 2.
Please refer to fig. 2, which is a flowchart illustrating an image processing method for geographic elements according to a first embodiment of the present application.
In step S201, an inverted image of the first target geographic element is obtained.
The image processing method for the geographic elements, provided by the embodiment of the application, can be applied to obtaining the mapping image for rendering the reflection of the first target geographic element in the second target geographic element in the electronic map, and displaying the mapping image in the electronic map so as to render the reflection of the first target geographic element in the scene in the electronic map.
The first target geographic element may refer to a certain type of geographic element that is shown in the electronic map, and may be, for example, a building, a road, or other geographic element that may be shown in the electronic map. The second target geographical element may refer to a geographical element that is capable of being inverted over the first target geographical element. For example, the second target geographic element may refer to a geographic element such as a river in which an aqueous medium or other liquid medium is present. But also glass or other geographical elements with similar properties to glass that can be inverted over the first target geographical element. In this embodiment, the first target geographic element may generate a reflection in the second target geographic element, but it may also mean that the first target geographic element may generate a reflection in the second target geographic element.
In the electronic map application, when the electronic map is displayed, only the image of the target geographic element is displayed in the existing electronic map application. Namely: the image of the first target geographical element and the image of the second target geographical element may be presented simultaneously. However, existing electronic map applications cannot show the reflection of a first target geographic element in a second target geographic element. In the present application, the electronic map may show not only the image of the first target geographic element and the image of the second target geographic element, but also a reflection of the first target geographic element in the second target geographic element.
In particular, the image of the second target geographical element is used to represent the second target geographical element in the electronic map and the image of the first target geographical element is used to represent the first target geographical element in the electronic map. In general, the image of the target geographic element is an image representing the target geographic element itself in the electronic map. The description of the image of the target geographic element is mainly to distinguish the map image appearing in the present application, and the map image for rendering the reflection of the first target geographic element in the electronic map may also be referred to as a target map image.
In practice, there may be a reflection of the first target geographical element in the second target geographical element. If the reflection image is rendered in the electronic map, the rendering can obtain an object image. The target map image is a map image for representing a reflection of the first target geographic element in the second target geographic element in the electronic map. For example, in the electronic map, if the first target geographic element is a building a, the image of the building a is used as the image of the first target geographic element, and the image of the building a is used for representing the building a in the electronic map. And if the second target geographic element is river B, the image of the river B is used as the image of the second target geographic element, and the image of the river B is used for representing the river B in the electronic map, namely the image of the river B. The map image showing the inverted image of the building a in the river B on the electronic map is a target map image for showing the inverted image of the building a in the river B on the electronic map.
Since the image of the first target geographic element, the image of the second target geographic element, and the target map image need to be displayed at the same time in the present application, the image of the first target geographic element, the image of the second target geographic element, and the target map image need to be obtained. The image processing method of the geographic element can simultaneously obtain the image of the first target geographic element, the image of the second target geographic element and the target mapping image.
When the target map image is obtained, the image is obtained based on the reversed image of the first target geographic element and the image of the second target geographic element. Specifically, the present embodiment may be based on that OpenGL (Open Graphics Library, translation name: Open Graphics Library or "Open Graphics Library") is a cross-language, cross-platform Application Programming Interface (API) for rendering 2D, 3D vector Graphics. The interface consists of nearly 350 different function calls to draw from simple graphics bits to complex three-dimensional scenes. In the present application, the image of the second target geographical element is rendered at the same time as the first target geographical element is rendered by first rendering an inverted image of the first target geographical element. Finally, a reflection image for rendering the reflection of the first target geographic element in the electronic map is obtained by inverting the image with the image of the second target geographic element.
Specifically, when the reverse image and the image of the second target geographic element are drawn through OpenGL, the template values of the pixels in the reverse image corresponding to the first template used for drawing the reverse image can be obtained, and the template values of the pixels in the image of the second target geographic element corresponding to the second template used for drawing the image of the second target geographic element can also be obtained.
When the target map image is obtained by inverting the image of the second target geographic element with the image of the second target geographic element, it is obtained based on the overlapping area of the inverted image and the image of the second target geographic element. And the overlapping area is composed of many points, if the points composing the overlapping area can be obtained, the overlapping area can be obtained based on the points.
When determining whether or not a certain point can be a target point of an overlapping area of the reverse image and the image of the second target geographic element, it may be determined whether or not the first template value and the second template value of the point can be obtained at the same time, and if so, the point may be a target point constituting the overlapping area. Wherein the first template value is a value of the point corresponding to the first template used for rendering the inverted image, and the second template value is a value of the point corresponding to the second template used for rendering the image of the second target geographic element. Based on this idea, all target points constituting the overlap area can be obtained. Therefore, the overlapping area can be obtained by all the obtained target points.
After the overlap region is obtained, the mapping image may be obtained based on the first template value and the second template value corresponding to the target pixel point in the overlap region. Specifically, for any target pixel in the overlapping region, the first template value and the second template value corresponding to the target pixel are added, so as to obtain the target template value of the target pixel. Based on the same mode, the target template values of all target pixel points forming the overlapping area can be obtained, and finally, based on the target template values of all target pixel points, the target mapping image can be drawn.
As a first step of the image processing method of the geographic element in the present embodiment, first, an inverted image of the first target geographic element is obtained. In the present embodiment, the image of the first target geographic element is an image for representing the first target geographic element in an electronic map.
As an inverted image of the first target geographic element, the following may be followed: first, a first node and a second node for representing a first target geographic element in an electronic map are obtained. The first node and the second node are respectively used for representing a building node of the first target geographic element and a node of the three-dimensional model in the electronic map.
Building nodes are detail practices of building target object construction. The building node is mainly used for drawing a building node graph, the building node graph is drawn by using a larger scale for expressing the detail to be clearly reflected on the part of the structure of a target object, and the building node graph is an auxiliary pattern for expressing the structure way, the size, the mutual relation of structural parts, building materials and the like. The building node map, sometimes referred to as a "skeleton" map, is a map showing details of a building structure corresponding to a target object.
The nodes of the three-dimensional model can also be called 3dobj nodes, the nodes of the three-dimensional model are mainly used for drawing a three-dimensional model node diagram, the three-dimensional model node diagram is closer to a real target object, and the target object closer to the real can be shown in the electronic map by adopting the three-dimensional model node diagram.
After obtaining the first node and the second node, an inverted building node and an inverted three-dimensional model node for representing the first target geographic element in the electronic map may be obtained based on the first node and the second node, respectively.
Obtaining an inverted building node and an inverted three-dimensional model node for representing the first target geographic element in the electronic map based on the first node and the second node, respectively, may refer to: inverting the first node to obtain an inverted building node; and inverting the second node to obtain an inverted three-dimensional model node. Specifically, taking the first target geographic element as a building and the second target geographic element as a river as an example, the inverting manner may be that the first node directly uses the ground plane as a mapping plane to obtain a mapping node of the first node, and the mapping node of the first node is used as an inverting building node. Of course, this inversion is exemplified by the reflection of a building in a river as an example, and how the inversion is performed should be specifically analyzed for the case where the second target geographic element is not a river.
In the above-described inversion method, the building node may be directly symmetrical with the ground plane as a symmetry plane, so as to obtain an inverted building node.
In this embodiment, inverting the image is actually completely inverting the image row of the first target geographic element. However, in practice, the first target geographic element may be only partially mapped or inverted in the second target geographic element, and therefore, when the map image is displayed in the electronic map, there may be a case where the entire structure of the first target geographic element cannot be seen from the map image. It is therefore understood in the present application that the range of the first target geographical element presented by the reverse image is larger than the range of the first target geographical element presented by the mapping image, or that the range of the first target geographical element presented by the reverse image is the same as the range of the first target geographical element presented by the mapping image.
At the same time, an inverted texture node is obtained for representing the first target geographic element in the electronic map. The reverse texture node is mainly used for displaying texture information of a reverse image in an electronic map.
After obtaining the inverted building nodes, the inverted three-dimensional model nodes, and the inverted texture nodes, an inverted image of the first target geographic element is obtained based on the inverted building nodes, the inverted three-dimensional model nodes, and the inverted texture nodes.
Specifically, as an embodiment based on the inverted building nodes, the inverted three-dimensional model nodes, and the inverted texture nodes, an inverted image of the first target geographic element is obtained:
first, inverted building information for representing a first target geographic element in an electronic map is obtained based on inverted building nodes. Meanwhile, based on the inverted three-dimensional model node, inverted three-dimensional model information for representing the first target geographic element in the electronic map is obtained. In obtaining inverted building information based on inverted building nodes, the inverted building information is obtained based on a template used to obtain the inverted building information. Similarly, when the inverted three-dimensional model information is obtained based on the inverted three-dimensional model nodes, it is obtained based on the template used to obtain the inverted three-dimensional model information.
Then, based on the inverted texture node, inverted image texture information for representing the first target geographic element in the electronic map is obtained.
Finally, an inverted image of the first target geographic element is obtained based on the inverted building information, the inverted three-dimensional model information, and the inverted image texture information. Specifically, the obtaining of the inverse image texture information for representing the first target geographic element in the electronic map specifically refers to: and generating inverted image texture information drawn by the inverted building nodes and the inverted three-dimensional model nodes. Thus, obtaining an inverted image of the first target geographic element based on the inverted building information, the inverted three-dimensional model information, and the inverted image texture information may refer to generating an image corresponding to the inverted image texture information drawn by the inverted building nodes and the inverted three-dimensional model nodes.
In this embodiment, the image of the first target geographic element may also be directly inverted to obtain an inverted image. In this approach, it is necessary to obtain an image of the first target geographic element in advance.
In particular, the image of the first target geographical element may be obtained from a database for storing images of geographical elements, based on information of the first target geographical element. As for the specific detailed manner of obtaining the image of the first target geographic element, reference may be made to the manner of obtaining the image of the second target geographic element, and details thereof are not repeated here.
After obtaining the image of the first target geographical element, obtaining an inverted image of the first target geographical element may be: and obtaining a mapping image of the first target geographic element relative to the mapping surface by taking the ground plane as the mapping surface, and taking the mapping image of the first target geographic element relative to the mapping surface as an inverted image of the first target geographic element.
In the present application, the target mapped image may be different from or the same as the mapped image of the first target geographic element. In practice, when the first target geographic element can be completely mapped or inverted in the second target geographic element, the mapping image of the first target geographic element to the mapping surface is the same as the target mapping image, and when the first target geographic element can be incompletely mapped or inverted in the second target geographic element, the mapping image of the first target geographic element to the mapping surface is different from the target mapping image.
In step S202, an image of the second target geographic element is obtained.
While the reverse image is obtained and the image of the second target geographic element is obtained, it should be noted that, in the present application, step S201 is not in sequence with step S202.
In particular, the image of the second target geographic element is used to represent the second target geographic element in an electronic map. As one way of obtaining the image of the second target geographic element, it may be: based on the information of the second target geographic element, an image of the second target geographic element is obtained from a database for storing images of geographic elements.
In particular, an image database may be built of images for presenting geographic elements in an electronic map. When it is desired to obtain an image of certain geographic elements, the image of the geographic elements may be obtained directly in the database. To facilitate obtaining an image of a geographic element, different types of databases may be established according to the type of geographic element when establishing the database. For example, images corresponding to geographic elements to which a first target geographic element belongs in a same category or similar category are stored in a first database, and images corresponding to geographic elements to which a second target geographic element belongs in a same category or similar category are stored in a second database. Thus, when obtaining the image of the second target geographical element, the image of the second target geographical element may be obtained from the second database directly based on the information of the second target geographical element.
More specifically, when the second database is established, the information of the second target geographic element and the image of the second target geographic element may be associated, and at the same time, the information of the geographic element belonging to the same category or similar category as the second target geographic element and the image of the geographic element belonging to the same category or similar category as the second target geographic element may be associated, that is: in the second database, the correspondence between the information of the geographic element and the image of the target geographic element is stored. The information of the second target geographical element may refer to a name of the second target geographical element or may refer to a type of the second target geographical element. Thus, the image of the second target geographical element may be obtained based on the correspondence between the information of the geographical element and the image of the geographical element stored in the second database and the information of the second target geographical element.
Of course, obtaining the image of the second target geographic element may also refer to: an image is rendered for representing the second target geographic element in the electronic map. A second template is employed in rendering the image of the second target geographic element. By drawing the image of the second target geographic element and the reverse image of the first target geographic element using OpenGL, and bringing up the second template drawing the image of the second target geographic element and the first template drawing the reverse image, a reflection image for rendering the reverse image of the first target geographic element in the electronic map can be obtained by the subsequent step S203.
In step S203, a map image for rendering the reflection of the first target geographic element in the electronic map is obtained from the image of the second target geographic element and the reverse image.
In the present embodiment, the map image is used to render a reflection of the first target geographic element in the second target geographic element in the electronic map.
Obtaining a map image for rendering the reflection of the first target geographic element in the electronic map from the image and the inverted image of the second target geographic element may be as follows: first, from the image and the inverted image of the second target geographic element, an overlapping area of the image and the inverted image of the second target geographic element is obtained. Then, based on the first template value and the second template value corresponding to the target pixel point in the overlapping area, a mapping image for rendering a reflection of the first target geographic element in the electronic map is obtained. The first template value is a value of a target pixel point corresponding to a first template adopted for drawing the reversed image, and the second template value is a value of a target pixel point corresponding to a second template adopted for drawing the image of the second target geographic element.
Specifically, obtaining the overlapping area of the image of the second target geographic element and the inverted image from the image of the second target geographic element and the inverted image may be in a manner as described below.
Points constituting the overlapping area are obtained, and the overlapping area is obtained based on these points.
When it is judged whether or not a certain point can be a target point of an overlapping area of the reverse image and the image of the second target geographic element, it is judged whether or not the first template value and the second template value of the point can be obtained at the same time, and if possible, the point is regarded as a target point constituting the overlapping area. Of course, the target points constituting the overlapping area necessarily belong to both points in the image of the second target geographic element and to points in the inverted image. Therefore, when it is determined whether a certain point can be a target point of an overlapping area of the reversed image and the image of the second target geographical element, the points are derived from a point in the image of the second target geographical element and a point in the reversed image.
After the overlapping area is obtained, a mapping image for rendering the reflection of the first target geographic element in the electronic map is obtained based on the first template value and the second template value corresponding to the target pixel point in the overlapping area.
Specifically, as one way of obtaining a map image for rendering a reflection of the first target geographic element in the electronic map based on the first template value and the second template value corresponding to the target pixel point in the overlap area, a manner described below may be used.
First, a first template value and a second template value corresponding to each pixel point in the overlap region are obtained.
And then, based on the first template value and the second template value, obtaining a target template value of each pixel point in the overlapping area.
And finally, obtaining a mapping image used for rendering the reflection of the first target geographic element in the electronic map according to the target template value of each pixel point in the overlapping area.
For example, if the first template value is m and the second template value is n for a certain pixel in the overlap region, the template value of the pixel in the overlap region is m + n. By the calculation mode, the template values of all the pixel points in the overlapping area can be calculated. And after the template values of all the pixel points in the overlapping area are obtained, combining the obtained template values of all the pixel points to draw a reflection image for rendering the first target geographic element in the electronic map.
After obtaining the reflection image for rendering the first target geographic element in the electronic map, the method further comprises: the map image is provided to the client as a target map image to present the target map image in an electronic map in the client.
Of course, the target map image can be displayed in the client by detecting a trigger operation of the display target map image set by the user for the electronic map and displaying the target map image based on the confirmation information corresponding to the trigger operation.
As a trigger operation for detecting a display target map image set by a user for an electronic map, the trigger operation may be: detecting whether a user carries out trigger operation on the display target image in the client, and when the user carries out trigger operation on the display target image, responding to the trigger operation of the user on the display target image set by the electronic map, and obtaining confirmation information of the display target image. And after the confirmation information of the display target image is obtained, displaying the target image in the electronic map based on the confirmation information of the display target image.
In addition, inquiry information of whether the target image is displayed in the electronic map or not can be displayed to the user through the client. After the inquiry information is presented to the user, whether the user carries out confirmation operation on the inquiry information is detected, and if yes, the confirmation information of the user on the inquiry information is obtained in response to the detection of the confirmation operation of the user on the inquiry information. And after obtaining the confirmation information of the user for the inquiry information, displaying the target image in the electronic map based on the confirmation information of the user for the inquiry information.
The image processing method for the geographic elements provided by the embodiment of the application comprises the following steps: obtaining an inverted image of the first target geographic element; obtaining an image of a second target geographic element; obtaining a mapping image for rendering the reflection of the first target geographic element in the electronic map according to the image of the second target geographic element and the reverse image. By adopting the image processing method for the geographic elements, the mapping image for rendering the reflection of the first target geographic element in the electronic map can be obtained, so that the reflection of the first target geographic element can be displayed in the electronic map, and compared with the existing electronic map, the displayed first target geographic element is more vivid.
Second embodiment
The second embodiment of the application provides an electronic map display method. Since the second embodiment has been described in the first embodiment, the description is relatively simple, and reference may be made to the partial description of the first embodiment for relevant points, and the electronic map display method embodiments described below are merely illustrative.
The electronic map display method comprises the following steps: and rendering the reflection of the geographic element in the electronic map based on the mapping image of the geographic element.
In the present embodiment, the map image is obtained based on the image processing method of the geographic element in the first embodiment.
In this embodiment, the method further includes: and obtaining confirmation information of the display map image in response to detecting the trigger operation of the user on the display map image set by the electronic map.
Specifically, the method for rendering the reflection of the geographic elements in the electronic map comprises the following steps: and displaying the mapping image in the electronic map based on the confirmation information of the displaying mapping image.
In this embodiment, the method further includes: and displaying inquiry information whether the image is displayed in the electronic map or not to the user, and responding to the detection of the confirmation operation of the user on the inquiry information to obtain the confirmation information of the user on the inquiry information.
Specifically, the method for rendering the reflection of the geographic elements in the electronic map comprises the following steps: and displaying the mapping image in the electronic map based on the confirmation information of the user for the inquiry information.
As shown in fig. 3, it is a schematic diagram of a map image shown in an electronic map. In the schematic diagram, 301 is an image of a first target geographic element, 303 is an image of a second target geographic element, and 302 is a target map image.
Third embodiment
In accordance with the image processing method for geographic elements provided in the first embodiment of the present application, a third embodiment of the present application also provides an image processing apparatus for geographic elements. Since the device embodiment is substantially similar to the first embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the first embodiment for relevant points. The device embodiments described below are merely illustrative.
Fig. 4 is a schematic diagram of an image processing apparatus for geographic elements according to a third embodiment of the present application.
The image processing device for the geographic element comprises:
an inverse image obtaining unit 401 for obtaining an inverse image of the first target geographic element;
a second image obtaining unit 402 for obtaining an image of a second target geographic element;
a map image obtaining unit 403, configured to obtain a map image for rendering an inverted image of the first target geographic element in an electronic map according to the image of the second target geographic element and the inverted image.
Optionally, the inverse image obtaining unit is specifically configured to:
obtaining a first node and a second node for representing the first target geographic element in an electronic map; the first node and the second node represent a building node and a node of a three-dimensional model of the first target geographic element, respectively;
inverting the first node and the second node respectively to obtain an inverted building node and an inverted three-dimensional model node for representing the first target geographic element in an electronic map;
obtaining an inverted texture node for representing the first target geographic element in an electronic map;
obtaining an inverted image of a first target geographic element based on the inverted building node, the inverted three-dimensional model node, and the inverted texture node.
Optionally, the inverse image obtaining unit is specifically configured to:
obtaining inverted building information for representing the first target geographic element in an electronic map based on the inverted building nodes;
obtaining inverted three-dimensional model information for representing the first target geographic element in an electronic map based on the inverted three-dimensional model nodes;
obtaining, based on the inverted texture node, inverted image texture information for representing the first target geographic element in an electronic map;
obtaining an inverted image of the first target geographic element based on the inverted building information, the inverted three-dimensional model information, and the inverted image texture information.
Optionally, the map image obtaining unit is specifically configured to:
obtaining an overlapping area of the image of the second target geographic element and the inverted image from the image of the second target geographic element and the inverted image;
obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map based on the first template value and the second template value corresponding to the target pixel point in the overlapping area; the first template value is a value of the target pixel point corresponding to a first template adopted for drawing the reverse image, and the second template value is a value of the target pixel point corresponding to a second template adopted for drawing the image of the second target geographic element.
Optionally, the map image obtaining unit is specifically configured to:
obtaining a first template value and a second template value corresponding to each pixel point in the overlapping area;
obtaining a target template value of each pixel point in the overlapping area based on the first template value and the second template value;
and obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map according to the target template value of each pixel point in the overlapping area.
Optionally, the second image obtaining unit is specifically configured to:
obtaining an image of the second target geographic element from a database for storing images of geographic elements based on the information of the second target geographic element.
Optionally, the method further includes: a first image obtaining unit; the first image obtaining unit is specifically configured to:
obtaining an image of the first target geographic element from a database for storing images of geographic elements based on the information of the first target geographic element.
Optionally, the inverse image obtaining unit is specifically configured to:
and taking the ground plane as a mapping surface, obtaining a mapping image of the first target geographic element relative to the mapping surface, and taking the mapping image of the first target geographic element relative to the mapping surface as an inverted image of the first target geographic element.
Optionally, the method further includes: a providing unit; the providing unit is specifically configured to:
providing the map image for rendering the reflection of the first target geographic element in the electronic map as a target map image to a client to show the target map image in the electronic map in the client.
Fourth embodiment
Corresponding to the electronic map display method provided in the second embodiment of the present application, a fourth embodiment of the present application further provides an electronic map display device. Since the apparatus embodiment is substantially similar to the second embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the second embodiment for relevant points. The device embodiments described below are merely illustrative.
This electronic map display device includes:
and the rendering unit is used for rendering the reflection of the geographic element in the electronic map based on the mapping image of the geographic element, wherein the mapping image is obtained based on the image processing method of the geographic element of the first embodiment.
Optionally, the method further includes: a confirmation information obtaining unit; the confirmation information obtaining unit is specifically configured to:
responding to the detected trigger operation of the user for displaying the image set by the electronic map, and obtaining confirmation information for displaying the image;
the rendering unit is specifically configured to:
and displaying the mapping image in an electronic map based on the confirmation information for displaying the mapping image.
Optionally, the confirmation information obtaining unit is further specifically configured to:
displaying inquiry information whether the image is displayed in an electronic map or not to a user;
in response to detecting the confirmation operation of the user for the inquiry information, obtaining confirmation information of the user for the inquiry information;
the rendering unit is specifically configured to:
and displaying the mapping image in an electronic map based on the confirmation information of the user for the inquiry information.
Fifth embodiment
Corresponding to the image processing method of the geographic elements and the electronic map displaying method provided by the second embodiment in the first embodiment of the present application, a fifth embodiment of the present application further provides an electronic device.
As shown in fig. 5, fig. 5 is a schematic view of an electronic device provided in a fifth embodiment of the present application.
The electronic device includes:
a processor 501;
the memory 502 is used for storing a computer program, which is executed by the processor and executes the image processing method of the geographic element of the first embodiment and the electronic map displaying method of the second embodiment.
Sixth embodiment
Corresponding to the image processing method of the geographic element and the electronic map displaying method provided in the second embodiment of the present application, a sixth embodiment of the present application further provides a computer storage medium, where a computer program is stored, and the computer program is executed by a processor to execute the image processing method of the geographic element and the electronic map displaying method of the second embodiment.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
1. Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer-readable medium does not include non-transitory computer-readable storage media (non-transitory computer readable storage media), such as modulated data signals and carrier waves.
2. As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Claims (10)
1. An image processing method of a geographic element, comprising:
obtaining an inverted image of the first target geographic element;
obtaining an image of a second target geographic element;
obtaining a map image for rendering an inverted image of the first target geographic element in an electronic map from the image of the second target geographic element and the inverted image.
2. The method of image processing of a geographic element of claim 1 wherein said obtaining an inverted image of a first target geographic element comprises:
obtaining a first node and a second node for representing the first target geographic element in an electronic map; the first node and the second node represent a building node and a node of a three-dimensional model of the first target geographic element, respectively;
inverting the first node and the second node respectively to obtain an inverted building node and an inverted three-dimensional model node for representing the first target geographic element in an electronic map;
obtaining an inverted texture node for representing the first target geographic element in an electronic map;
obtaining an inverted image of a first target geographic element based on the inverted building node, the inverted three-dimensional model node, and the inverted texture node.
3. The method of image processing of a geographic element of claim 2, wherein said obtaining an inverted image of a first target geographic element based on the inverted building node, the inverted three-dimensional model node, and the inverted texture node comprises:
obtaining inverted building information for representing the first target geographic element in an electronic map based on the inverted building nodes;
obtaining inverted three-dimensional model information for representing the first target geographic element in an electronic map based on the inverted three-dimensional model nodes;
obtaining, based on the inverted texture node, inverted image texture information for representing the first target geographic element in an electronic map;
obtaining an inverted image of the first target geographic element based on the inverted building information, the inverted three-dimensional model information, and the inverted image texture information.
4. The method for image processing of a geographic element as recited in claim 1, wherein said obtaining a map image for rendering the reflection of the first target geographic element in an electronic map from the image of the second target geographic element and the reverse image comprises:
obtaining an overlapping area of the image of the second target geographic element and the inverted image from the image of the second target geographic element and the inverted image;
obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map based on the first template value and the second template value corresponding to the target pixel point in the overlapping area; the first template value is a value of the target pixel point corresponding to a first template adopted for drawing the reverse image, and the second template value is a value of the target pixel point corresponding to a second template adopted for drawing the image of the second target geographic element.
5. The method for image processing of geographic elements according to claim 4, wherein said obtaining the reflection image for rendering the reflection of the first target geographic element in the electronic map based on the first and second template values corresponding to the target pixel points in the overlap region comprises:
obtaining a first template value and a second template value corresponding to each pixel point in the overlapping area;
obtaining a target template value of each pixel point in the overlapping area based on the first template value and the second template value;
and obtaining the mapping image used for rendering the reflection of the first target geographic element in the electronic map according to the target template value of each pixel point in the overlapping area.
6. An electronic map display method, comprising:
rendering a reflection of a geographic element in an electronic map based on a map image of the geographic element, the map image obtained based on the method of any one of claims 1-5.
7. An image processing apparatus for a geographic element, comprising:
an inverted image obtaining unit for obtaining an inverted image of the first target geographic element;
a second image obtaining unit for obtaining an image of a second target geographic element;
a map image obtaining unit, configured to obtain a map image for rendering the reflection of the first target geographic element in the electronic map according to the image of the second target geographic element and the reverse image.
8. An electronic map display device, comprising:
a rendering unit for rendering the reflection of the geographic element in the electronic map based on a map image of the geographic element, the map image being obtained based on the method of any one of claims 1-5.
9. An electronic device, comprising:
a processor;
a memory for storing a computer program for execution by the processor to perform the method of any one of claims 1 to 6.
10. A computer storage medium, wherein the computer storage medium stores a computer program that is executed by a processor to perform the method of any one of claims 1-6.
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