CN117132721A - Data processing method and device for terrain display - Google Patents
Data processing method and device for terrain display Download PDFInfo
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
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Abstract
The application discloses a data processing method and device for terrain display. Acquiring to-be-processed flight data comprising first to-be-processed flight data and second to-be-processed flight data, wherein the first to-be-processed flight data is data for representing the flight state of the aircraft, and the second to-be-processed flight data is data for representing a flight terrain display request; performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data; performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data; and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data. The display processing based on the terrain and the terrain materials is carried out on the data in the flight of the aircraft, so that the corresponding terrain display is carried out on different terrain display requests, and the effect of visually displaying the flight terrain in the flight process of the aircraft is realized.
Description
Technical Field
The application relates to the field of computers, in particular to a data processing method and device for terrain display.
Background
With the continuous development of aviation flight field technology, aircraft are increasingly widely applied in different fields, and in the flight process, the environment condition needs to be monitored in real time to improve flight safety. For example, three-dimensional terrain, obstacles, airports and other image information need to be provided for pilots, in the prior art, in the flight process, the pilots are mainly used for evaluating the terrain in the flight range, and the current flight state is difficult to intuitively show to the pilots. Aiming at the problem that three-dimensional visual display of a flying terrain scene is lacking in the prior art, a data processing method for terrain display is provided so as to display the flying state in the flying process.
Disclosure of Invention
The application mainly aims to provide a data processing method and device for terrain display, which are used for solving the technical problems of an aircraft in the prior art and realizing the effect of visually displaying the flying terrain in the flying process of the aircraft.
In order to achieve the above object, a first aspect of the present application provides a data processing method for displaying terrain, which is applied to an on-board time-of-flight view system to display flying terrain during the flying process of an aircraft, and the data processing method includes:
acquiring flight data to be processed, wherein the flight data to be processed comprises first flight data to be processed and second flight data to be processed, the first flight data to be processed is data used for representing the flight state of an aircraft, and the second flight data to be processed is data used for representing a flight terrain display request;
performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft;
performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data, wherein the terrain display texture data is data for representing the displayed flight terrain texture;
and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data.
Further, performing a display terrain generation process on the process three-dimensional terrain display data according to the terrain display material data, to obtain target three-dimensional terrain display data includes:
performing altitude difference calculation based on terrain elements on the process three-dimensional terrain display data to obtain to-be-colored piece metadata, wherein the to-be-colored piece metadata is data for representing altitude differences between the terrain elements and the aircraft;
matching the fragment colors corresponding to the fragment metadata to be colored to obtain fragment color matching data, wherein the fragment color matching data is data for representing the corresponding colors of the topography fragments;
performing texture mapping processing based on the terrain features on the process three-dimensional terrain display data to obtain three-dimensional terrain texture mapping data, wherein the three-dimensional terrain texture mapping data is data for representing flying terrain after texture mapping;
and performing terrain rendering processing on the three-dimensional terrain texture mapping data according to the fragment color matching data to obtain the target three-dimensional terrain display data.
Further, performing texture mapping processing based on the terrain features on the process three-dimensional terrain display data to obtain three-dimensional terrain texture mapping data, wherein the obtaining the three-dimensional terrain texture mapping data comprises the following steps:
performing recognition processing based on the topographic features on the process three-dimensional topographic display data to obtain topographic feature data, wherein the topographic feature data is feature data for representing topographic types;
matching texture data corresponding to the topographic feature data in a preset system view database to obtain topographic texture data, wherein the topographic texture data is data for representing texture corresponding to a topographic type;
and performing terrain texture mapping processing corresponding to the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain the three-dimensional terrain texture mapping data.
Further, performing texture mapping processing based on the terrain features on the process three-dimensional terrain display data to obtain three-dimensional terrain texture mapping data, wherein the obtaining the three-dimensional terrain texture mapping data comprises the following steps:
matching a terrain image corresponding to the preset terrain position characteristic in first flight data to be processed to obtain the terrain image data to be processed, wherein the terrain image data to be processed is data for representing that an aircraft acquires the preset terrain position image;
performing terrain texture generation processing on the to-be-processed terrain image data to obtain terrain texture data, wherein the terrain texture data are terrain texture data used for representing conversion of the to-be-processed terrain image;
and performing terrain texture mapping processing based on the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain the three-dimensional terrain texture mapping data.
Further, performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, which includes:
performing recognition processing based on position features on the first flight data to be processed to obtain flight position feature data, wherein the flight position feature data are data used for representing flight position features of an aircraft;
matching a three-dimensional terrain model corresponding to the flight position feature data in a preset system vision database to obtain process three-dimensional terrain model data, wherein the process three-dimensional terrain model data is three-dimensional terrain model data for representing flight terrain;
performing viewpoint identification on the first flight data to be processed to obtain flight viewpoint data, wherein the flight viewpoint data are data for representing corresponding viewpoints of the aircraft;
and carrying out terrain image generation processing on the process three-dimensional terrain model data according to the flight viewpoint data to obtain the process three-dimensional terrain display data.
Further, performing a display terrain generation process on the process three-dimensional terrain display data according to the terrain display material data, to obtain target three-dimensional terrain display data includes:
carrying out recognition processing of a preset obstacle model on the process three-dimensional terrain display data to obtain process obstacle model data;
performing height difference calculation processing on the process obstacle model data and the flight viewpoint data to obtain to-be-displayed obstacle topographic data, wherein the to-be-displayed obstacle topographic data is data for representing the relative height difference between the obstacle and the aircraft;
comparing the height difference corresponding to the topographic data of the obstacle to be displayed with a preset obstacle display threshold value to judge whether the obstacle corresponding to the process obstacle model data is displayed,
if the height difference corresponding to the obstacle topographic data to be displayed is smaller than or equal to a preset obstacle display threshold value, generating target three-dimensional obstacle topographic display data to obtain the target three-dimensional topographic display data, wherein the target three-dimensional topographic display data comprises the target three-dimensional obstacle topographic display data;
and if the height difference corresponding to the to-be-displayed obstacle topographic data is greater than a preset obstacle display threshold value, generating the target three-dimensional topographic display data.
According to a second aspect of the present application, there is provided a data processing device for displaying terrain, applied to an on-board time-of-flight view system, for displaying flying terrain during the flying of an aircraft, the data processing device comprising:
the system comprises a data acquisition module, a data display module and a data display module, wherein the data acquisition module is used for acquiring flight data to be processed, the flight data to be processed comprise first flight data to be processed and second flight data to be processed, the first flight data to be processed is data for representing the flight state of an aircraft, and the second flight data to be processed is data for representing a flight terrain display request;
the three-dimensional terrain generation module is used for carrying out three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft;
the terrain material module is used for carrying out recognition processing based on the terrain material on the second flight data to be processed to obtain terrain display material data, wherein the terrain display material data is data for representing and displaying the flight terrain material;
and the display terrain generation module is used for carrying out display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data.
Further, the display topography generation module includes:
the terrain fragment module is used for carrying out terrain fragment-based height difference calculation on the process three-dimensional terrain display data to obtain fragment metadata to be colored, wherein the fragment metadata to be colored are data for representing the height difference between the terrain fragment and the aircraft;
the patch color matching module is used for matching patch colors corresponding to the patch data to be colored to obtain patch color matching data, wherein the patch color matching data is data for representing the colors corresponding to the topography patches;
the texture mapping module is used for performing texture mapping processing on the process three-dimensional terrain display data based on the terrain features to obtain three-dimensional terrain texture mapping data, wherein the three-dimensional terrain texture mapping data is data for representing flying terrain after texture mapping;
and the rendering module is used for performing terrain rendering processing on the three-dimensional terrain texture mapping data according to the fragment color matching data to obtain the target three-dimensional terrain display data.
According to a third aspect of the present application, there is provided a computer-readable storage medium storing computer instructions for causing the computer to execute the above-described data processing method for terrain display.
According to a fourth aspect of the present application, there is provided an electronic device comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to cause the at least one processor to perform the data processing method for terrain display described above.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
the method comprises the steps of obtaining flight data to be processed, wherein the flight data to be processed comprise first flight data to be processed and second flight data to be processed, the first flight data to be processed are data used for representing flight states of an aircraft, and the second flight data to be processed are data used for representing flight terrain display requests; performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft; performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data, wherein the terrain display texture data is data for representing the displayed flight terrain texture; and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data. The display processing based on the terrain and the terrain materials is carried out on the data in the flight of the aircraft, so that the corresponding terrain display is carried out on different terrain display requests, and the effect of visually displaying the flight terrain in the flight process of the aircraft is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
FIG. 1 is a flow chart of a data processing method for terrain display provided by the present application;
FIG. 2 is a flow chart of a data processing method for terrain display provided by the present application;
FIG. 3 is a flow chart of a data processing method for terrain display provided by the present application;
FIG. 4 is a schematic diagram of a data processing apparatus for terrain display provided by the present application;
fig. 5 is a schematic diagram of another data processing apparatus for terrain display according to the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
With the continuous development of aviation flight field technology, aircraft are increasingly widely applied in different fields, and in the flight process, real-time monitoring of environmental conditions is required to improve flight safety, such as the need to provide three-dimensional terrain, obstacles, airports and other image information for pilots, and in order to further ensure flight safety, the need to provide terrain information for pilots is also critical how to provide accurate and visual terrain information for pilots. In the prior art, when the topographic information is provided for pilots, three-dimensional visual display of the topographic scene is lacking. Aiming at the problem of lack of visual display of flying terrain in the prior art, the application provides a data processing method for displaying terrain.
In some alternative embodiments of the present application, a data processing method for displaying terrain is provided, which is applied to an on-board time-of-flight view system to display flying terrain during the flying process of an aircraft, and fig. 1 is a flowchart of a data processing method for displaying terrain, provided by the present application, and as shown in fig. 1, the method includes the following steps:
s101: acquiring flight data to be processed;
the flight data to be processed comprises first flight data to be processed and second flight data to be processed, wherein the first flight data to be processed is data used for representing the flight state of the aircraft, the second flight data to be processed is data used for representing flight terrain display requests, the first flight data to be processed comprises flight information, flight control information and the like, airborne data such as GPS data, altitude data and flight attitude data are included, real-time flight data are collected, the second flight data to be processed is request data used for representing how to perform terrain display, the terrain display requests are request data used for displaying terrain in a terrain graphic mode, and the non-terrain display requests are request data used for representing displaying in a non-terrain mode and the flight data are displayed in a non-terrain graphic mode.
S102: performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data;
the process three-dimensional terrain display data is three-dimensional terrain data for representing the terrain of flight of the aircraft. And converting the to-be-processed flight data into a three-dimensional topographic map so as to generate display topographic display data meeting the display request according to the flight display request in the second to-be-processed flight data.
S103: performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data;
the terrain display material data is data for representing the display of the flying terrain material; the terrain display material data comprises first terrain display material data and second terrain display material data, wherein the first terrain display material is used for representing a terrain natural effect, and the second terrain display material is used for representing a terrain material which generates corresponding changes according to the ground clearance of the aircraft, and changes of terrain display are carried out according to the ground clearance of the aircraft.
S104: and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data.
In another alternative embodiment of the present application, there is provided a data processing method for terrain display, in which, in generating three-dimensional terrain display data according to a first flight data to be processed, fig. 2 is a flowchart of a data processing method for terrain display provided by the present application, as shown in fig. 2, the method includes the steps of:
s201: performing recognition processing based on position features on the first flight data to be processed to obtain flight position feature data;
the flight position feature data is data representing a flight position feature of the aircraft;
s202: matching a three-dimensional terrain model corresponding to the flight position feature data in a preset system vision database to obtain process three-dimensional terrain model data;
the three-dimensional terrain model data of the process are three-dimensional terrain model data used for representing flying terrain, pre-built terrain network models of different terrain positions are stored in a preset system view database, and the three-dimensional terrain model data of the process are obtained by matching the current position characteristics of the aircraft with the terrain network models of corresponding positions in the database.
In another alternative embodiment of the present application, pre-building a terrain network model for different terrain locations includes:
determining elevation map data according to the position characteristic data to obtain elevation map data to be processed; carrying out terrain grid construction processing on the elevation map data to be processed to obtain process terrain grid data; in the process of constructing the terrain mesh, the method comprises the following steps: constructing a terrain grid based on a multi-Detail Level (LOD) technology for the terrain elevation graph, and performing grid variant (Morph) animation processing on the terrain grid constructed based on the LOD technology so as to avoid grid shape mutation during switching before different LODs and improve the simulation precision of a terrain grid model.
S203: performing viewpoint identification on the first flight data to be processed to obtain flight viewpoint data;
the flight viewpoint data is data for representing a corresponding viewpoint of the aircraft;
s204: and carrying out terrain image generation processing on the process three-dimensional terrain model data according to the flight viewpoint data to obtain process three-dimensional terrain display data.
In another alternative embodiment of the present application, a data processing method for terrain display is provided, wherein the process three-dimensional terrain display data is subjected to display terrain generation processing according to terrain display material data to obtain target three-dimensional terrain display data, and fig. 3 is a flowchart of a data processing method for terrain display provided by the present application, and as shown in fig. 3, the method includes the following steps:
s301: performing terrain element-based height difference calculation on the process three-dimensional terrain display data to obtain to-be-colored patch metadata;
the to-be-colored patch metadata are data for representing the altitude difference between the terrain patch and the aircraft, the altitude difference between the altitude of the three-dimensional terrain in the process three-dimensional terrain display data and the altitude of the aircraft is calculated to obtain the corresponding altitude difference of the to-be-colored patch in the to-be-displayed terrain, and the color matching of the to-be-colored patch is determined according to the corresponding altitude difference of the to-be-colored patch.
S302: matching the fragment colors corresponding to the fragment metadata to be colored to obtain fragment color matching data;
the patch color matching data are data for representing the corresponding colors of the terrain patches, patch color matching rules are stored in a preset system view database, and the corresponding color matching data are determined according to the height difference data corresponding to the patch to be colored.
S303: performing texture mapping processing based on the topographic features on the process three-dimensional topographic display data to obtain three-dimensional topographic texture mapping data;
the three-dimensional terrain texture mapping data is data for representing the flying terrain after texture mapping;
s304: and performing terrain rendering processing on the three-dimensional terrain texture mapping data according to the primitive color data to obtain target three-dimensional terrain display data.
In another alternative embodiment of the present application, there is provided a data processing method for terrain display for performing texture mapping processing based on terrain features on process three-dimensional terrain display data, including: performing recognition processing based on the topographic features on the process three-dimensional topographic display data to obtain topographic feature data, wherein the topographic feature data are feature data for representing topographic types; matching texture data corresponding to the topographic feature data in a preset system view database to obtain topographic texture data, wherein the topographic texture data is data for representing texture corresponding to a topographic type; performing terrain texture mapping processing corresponding to the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain three-dimensional terrain texture mapping data; the method comprises the steps of identifying and obtaining a plurality of topographic feature data, wherein the data are used for representing topographic surface features, such as a plurality of topographic features of surface vegetation, surface sand, surface buildings and the like, and matching textures corresponding to the topographic feature data.
In another optional embodiment of the present application, a topographic image corresponding to a preset topographic position feature is matched in first to-be-processed flight data to obtain to-be-processed topographic image data, wherein the to-be-processed topographic image data is data for representing that an aircraft acquires the preset topographic position image; performing terrain texture generation processing on the terrain image data to be processed to obtain terrain texture data, wherein the terrain texture data are terrain texture data used for representing conversion of the terrain image to be processed; and performing terrain texture mapping processing based on the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain three-dimensional terrain texture mapping data.
In the embodiment of the application, the three-dimensional terrain image of the current flying terrain is generated by carrying out the texture mapping of the terrain features on the flying terrain, the flying height display of the three-dimensional terrain image is realized according to the fragment colors corresponding to the height differences, and under the condition of realizing the displaying of the terrain, the displaying of different terrain heights in the flying terrain according to the terrain rendered by the fragment color matching is realized, and the multifunctional displaying of the flying terrain is realized.
In another optional embodiment of the present application, the process three-dimensional terrain display data is subjected to identification processing of a preset obstacle model to obtain process obstacle model data; performing height difference calculation processing on the process barrier model data and the flight viewpoint data to obtain barrier topographic data to be displayed, wherein the barrier topographic data to be displayed is data for representing the relative height difference between the barrier and the aircraft; comparing the height difference corresponding to the obstacle topographic data to be displayed with a preset obstacle display threshold value to judge whether the obstacle corresponding to the process obstacle model data is displayed or not, and generating target three-dimensional obstacle topographic display data to obtain target three-dimensional topographic display data if the height difference corresponding to the obstacle topographic data to be displayed is smaller than or equal to the preset obstacle display threshold value, wherein the target three-dimensional topographic display data comprises the target three-dimensional obstacle topographic display data; and if the height difference corresponding to the topographic data of the obstacle to be displayed is greater than a preset obstacle display threshold value, generating target three-dimensional topographic display data.
For example, when the difference in height between the obstacle terrain and the aircraft is greater than 1500 feet, the obstacle terrain does not appear; the obstacle terrain generates a display interface when the difference in altitude between the obstacle terrain and the aircraft is less than or equal to 1500 feet.
In another alternative embodiment of the application, the flight state of the aircraft is identified according to the first flight data to be processed, and the corresponding level of prompt information is generated according to the flight state, the height difference corresponding to the topographic data of the obstacle to be displayed and the time for triggering the obstacle display threshold value.
In another alternative embodiment of the present application, there is provided a data processing apparatus for displaying a terrain, and fig. 4 is a schematic diagram of a data processing apparatus for displaying a terrain, provided in the present application, as shown in fig. 4, including:
a data acquisition module 41, configured to acquire flight data to be processed, where the flight data to be processed includes first flight data to be processed and second flight data to be processed, the first flight data to be processed being data for representing a flight state of the aircraft, the second flight data to be processed being data for representing a flight terrain display request;
the three-dimensional terrain generation module 42 is configured to perform three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, where the process three-dimensional terrain display data is three-dimensional terrain data used for representing the flight terrain of the aircraft;
the terrain texture module 43 is configured to perform recognition processing based on a terrain texture on the second flight data to be processed, so as to obtain terrain display texture data, where the terrain display texture data is data for representing a displayed flight terrain texture;
the display terrain generation module 44 is configured to perform display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data, so as to obtain target three-dimensional terrain display data.
In another alternative embodiment of the present application, there is provided a data processing apparatus for displaying a terrain, and fig. 5 is a schematic diagram of another data processing apparatus for displaying a terrain, provided in the present application, as shown in fig. 5, including:
the terrain patch module 51 is configured to perform a terrain patch-based altitude difference calculation on the process three-dimensional terrain display data to obtain patch metadata to be colored, where the patch metadata to be colored is data for representing a terrain patch and an aircraft altitude difference;
the patch color matching module 52 is configured to match patch colors corresponding to patch metadata to be colored, so as to obtain patch color matching data, where the patch color matching data is data for representing a color corresponding to a terrain patch;
the texture mapping module 53 is configured to perform texture mapping processing based on the terrain features on the process three-dimensional terrain display data to obtain three-dimensional terrain texture mapping data, where the three-dimensional terrain texture mapping data is data for representing the flight terrain after texture mapping;
and the rendering module 54 is configured to perform terrain rendering processing on the three-dimensional terrain texture mapping data according to the primitive color data, so as to obtain target three-dimensional terrain display data.
The specific manner in which the operations of the units in the above embodiments are performed has been described in detail in the embodiments related to the method, and will not be described in detail here.
In summary, in the present application, to-be-processed flight data is obtained, where the to-be-processed flight data includes first to-be-processed flight data and second to-be-processed flight data, the first to-be-processed flight data is data for representing a flight state of an aircraft, and the second to-be-processed flight data is data for representing a flight terrain display request; performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft; performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data, wherein the terrain display texture data is data for representing the displayed flight terrain texture; and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data. The display processing based on the terrain and the terrain materials is carried out on the data in the flight of the aircraft, so that the corresponding terrain display is carried out on different terrain display requests, and the effect of visually displaying the flight terrain in the flight process of the aircraft is realized.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
It will be apparent to those skilled in the art that the elements or steps of the application described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, or they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by the computing devices, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The data processing method for displaying the terrain is characterized by being applied to an onboard time-of-flight view system to display the flying terrain in the flying process of an aircraft, and comprises the following steps of:
acquiring flight data to be processed, wherein the flight data to be processed comprises first flight data to be processed and second flight data to be processed, the first flight data to be processed is data used for representing the flight state of an aircraft, and the second flight data to be processed is data used for representing a flight terrain display request;
performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft;
performing identification processing based on the terrain texture on the second flight data to be processed to obtain terrain display texture data, wherein the terrain display texture data is data for representing the displayed flight terrain texture;
and performing display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data.
2. The data processing method according to claim 1, wherein performing display terrain generation processing on the process three-dimensional terrain display data based on the terrain display material data to obtain target three-dimensional terrain display data includes:
performing altitude difference calculation based on terrain elements on the process three-dimensional terrain display data to obtain to-be-colored piece metadata, wherein the to-be-colored piece metadata is data for representing altitude differences between the terrain elements and the aircraft;
matching the fragment colors corresponding to the fragment metadata to be colored to obtain fragment color matching data, wherein the fragment color matching data is data for representing the corresponding colors of the topography fragments;
performing texture mapping processing based on the terrain features on the process three-dimensional terrain display data to obtain three-dimensional terrain texture mapping data, wherein the three-dimensional terrain texture mapping data is data for representing flying terrain after texture mapping;
and performing terrain rendering processing on the three-dimensional terrain texture mapping data according to the fragment color matching data to obtain the target three-dimensional terrain display data.
3. The data processing method according to claim 2, wherein performing texture mapping processing based on topographical features on the process three-dimensional topographical display data to obtain three-dimensional topographical texture mapping data comprises:
performing recognition processing based on the topographic features on the process three-dimensional topographic display data to obtain topographic feature data, wherein the topographic feature data is feature data for representing topographic types;
matching texture data corresponding to the topographic feature data in a preset system view database to obtain topographic texture data, wherein the topographic texture data is data for representing texture corresponding to a topographic type;
and performing terrain texture mapping processing corresponding to the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain the three-dimensional terrain texture mapping data.
4. The data processing method according to claim 2, wherein performing texture mapping processing based on topographical features on the process three-dimensional topographical display data to obtain three-dimensional topographical texture mapping data comprises:
matching a terrain image corresponding to the preset terrain position characteristic in first flight data to be processed to obtain the terrain image data to be processed, wherein the terrain image data to be processed is data for representing that an aircraft acquires the preset terrain position image;
performing terrain texture generation processing on the to-be-processed terrain image data to obtain terrain texture data, wherein the terrain texture data are terrain texture data used for representing conversion of the to-be-processed terrain image;
and performing terrain texture mapping processing based on the terrain features on the process three-dimensional terrain display data according to the terrain texture data to obtain the three-dimensional terrain texture mapping data.
5. The data processing method according to claim 1, wherein performing three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data includes:
performing recognition processing based on position features on the first flight data to be processed to obtain flight position feature data, wherein the flight position feature data are data used for representing flight position features of an aircraft;
matching a three-dimensional terrain model corresponding to the flight position feature data in a preset system vision database to obtain process three-dimensional terrain model data, wherein the process three-dimensional terrain model data is three-dimensional terrain model data for representing flight terrain;
performing viewpoint identification on the first flight data to be processed to obtain flight viewpoint data, wherein the flight viewpoint data are data for representing corresponding viewpoints of the aircraft;
and carrying out terrain image generation processing on the process three-dimensional terrain model data according to the flight viewpoint data to obtain the process three-dimensional terrain display data.
6. The data processing method according to claim 1, wherein performing display terrain generation processing on the process three-dimensional terrain display data based on the terrain display material data to obtain target three-dimensional terrain display data includes:
carrying out recognition processing of a preset obstacle model on the process three-dimensional terrain display data to obtain process obstacle model data;
performing height difference calculation processing on the process obstacle model data and the flight viewpoint data to obtain to-be-displayed obstacle topographic data, wherein the to-be-displayed obstacle topographic data is data for representing the relative height difference between the obstacle and the aircraft;
comparing the height difference corresponding to the topographic data of the obstacle to be displayed with a preset obstacle display threshold value to judge whether the obstacle corresponding to the process obstacle model data is displayed,
if the height difference corresponding to the obstacle topographic data to be displayed is smaller than or equal to a preset obstacle display threshold value, generating target three-dimensional obstacle topographic display data to obtain the target three-dimensional topographic display data, wherein the target three-dimensional topographic display data comprises the target three-dimensional obstacle topographic display data;
and if the height difference corresponding to the to-be-displayed obstacle topographic data is greater than a preset obstacle display threshold value, generating the target three-dimensional topographic display data.
7. A data processing device for displaying terrain, which is applied to an on-board time-of-flight view system to display flying terrain in the flying process of an aircraft, the data processing device comprising:
the system comprises a data acquisition module, a data display module and a data display module, wherein the data acquisition module is used for acquiring flight data to be processed, the flight data to be processed comprise first flight data to be processed and second flight data to be processed, the first flight data to be processed is data for representing the flight state of an aircraft, and the second flight data to be processed is data for representing a flight terrain display request;
the three-dimensional terrain generation module is used for carrying out three-dimensional terrain generation processing on the first flight data to be processed to obtain process three-dimensional terrain display data, wherein the process three-dimensional terrain display data are three-dimensional terrain data used for representing flight terrain of an aircraft;
the terrain material module is used for carrying out recognition processing based on the terrain material on the second flight data to be processed to obtain terrain display material data, wherein the terrain display material data is data for representing and displaying the flight terrain material;
and the display terrain generation module is used for carrying out display terrain generation processing on the process three-dimensional terrain display data according to the terrain display material data to obtain target three-dimensional terrain display data.
8. The data processing apparatus of claim 7, wherein the display terrain generation module comprises:
the terrain fragment module is used for carrying out terrain fragment-based height difference calculation on the process three-dimensional terrain display data to obtain fragment metadata to be colored, wherein the fragment metadata to be colored are data for representing the height difference between the terrain fragment and the aircraft;
the patch color matching module is used for matching patch colors corresponding to the patch data to be colored to obtain patch color matching data, wherein the patch color matching data is data for representing the colors corresponding to the topography patches;
the texture mapping module is used for performing texture mapping processing on the process three-dimensional terrain display data based on the terrain features to obtain three-dimensional terrain texture mapping data, wherein the three-dimensional terrain texture mapping data is data for representing flying terrain after texture mapping;
and the rendering module is used for performing terrain rendering processing on the three-dimensional terrain texture mapping data according to the fragment color matching data to obtain the target three-dimensional terrain display data.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the data processing method for terrain display according to any of claims 1 to 6.
10. An electronic device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor to cause the at least one processor to perform the data processing method for terrain display of any of claims 1-6.
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