CN115203594A - Multi-temporal remote sensing data display method, device, equipment and medium - Google Patents
Multi-temporal remote sensing data display method, device, equipment and medium Download PDFInfo
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Abstract
The embodiment of the application discloses a multi-temporal remote sensing data display method, a device, equipment and a medium, wherein the method receives a remote sensing data service request sent by terminal equipment; carrying out grid search based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a WMTS service layer corresponding to the display range information; and sending the WMTS service layer to the terminal equipment so as to display a remote sensing image corresponding to the WMTS service layer on the terminal equipment. The method has the advantages that the problem of data loss during release is solved, the display smoothness of the front end is guaranteed, and the user experience is remarkably improved.
Description
Technical Field
The application relates to the technical field of remote sensing data processing, in particular to a multi-temporal remote sensing data display method, device, equipment and medium.
Background
With the rapid development of remote sensing image acquisition means, the remote sensing big data era has come. The remote sensing image generally refers to satellite remote sensing images and aerial photography images, and has the characteristics of huge total data amount, complex and various data formats and coordinate systems and the like. In the current multi-temporal remote sensing image service publishing technology, an offline service layer is usually generated in advance from a remote sensing image, and is used by front-end equipment for being invoked for publishing. Therefore, the conventional multi-temporal remote sensing image service publishing method can only call a pre-generated offline layer, cannot provide publishing service according to real-time requirements, and has the problem of data loss during publishing.
It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the application and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a medium for displaying multi-temporal remote sensing data, and solves the technical problem that published data is lost in a multi-temporal remote sensing image service publishing method in the prior art.
On one hand, the embodiment of the application provides a multi-temporal remote sensing data display method, which is used for a server, wherein a multi-temporal remote sensing data set is stored in the server; the method comprises the following steps:
receiving a remote sensing data service request sent by terminal equipment, wherein the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
performing grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a service layer corresponding to the display range information;
and receiving the calling of the terminal equipment to the service layer so as to display the remote sensing image corresponding to the service layer on the terminal equipment.
Optionally, the display range information further includes time range information, and the time range information includes an acquisition time range of the remote sensing data in the multi-temporal remote sensing data set.
Optionally, the step of performing a grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set includes:
resolving the coordinate range information to obtain geographic coordinate range information corresponding to the coordinate range information; the geographic coordinate range information is coordinate information in multi-temporal remote sensing data;
and carrying out grid search based on the geographic coordinate range information, the time range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set.
Optionally, the preset time rule is set according to a requirement of a user, and the preset time rule includes: reverse chronological or chronological order;
the step of performing dynamic tile embedding according to the tile rule information and the multi-temporal remote sensing data and a preset time rule to obtain a service layer corresponding to the display range information comprises the following steps:
according to the tile rule information and the multi-temporal remote sensing data, dynamically embedding multi-source images in the same grid into tiles according to a time reverse order or a time sequence to obtain a plurality of tile data;
obtaining a service layer corresponding to the display range information based on the plurality of tile data;
the step of dynamically embedding the multi-source images in the same grid into tiles according to the reverse time sequence or the time sequence according to the tile rule information and the multi-temporal remote sensing data to obtain a plurality of tile data comprises the following steps:
filling the images in a reverse time sequence or time sequence in the same grid, and filling the part which is not filled in the grid with the images in the previous time dimension successively until the whole grid is filled to form single tile data; and repeating the step of forming the single tile data to obtain a plurality of tile data corresponding to each grid.
Optionally, after the step of receiving the call of the terminal device to the service layer to display the remote sensing image corresponding to the service layer on the terminal device, the method further includes:
and returning to the step of carrying out grid search based on the display range information and the tile rule information when a signal that the time reaches a preset moment is received or the multi-temporal remote sensing data set updating signal is received so as to update the remote sensing image displayed on the terminal equipment.
In another aspect, an embodiment of the present application provides a multi-temporal remote sensing data display method, which is used for a terminal device, and the method includes:
receiving remote sensing data service operation;
generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
sending the remote sensing data service request to a server so that the server carries out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, dynamic tile embedding is carried out according to a preset time rule so as to obtain a service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
and calling the service layer to display the remote sensing image corresponding to the service layer.
On the other hand, the embodiment of the application provides a multi-temporal remote sensing data display device, which is used for a server, wherein a multi-temporal remote sensing data set is stored in the server; the device comprises:
the system comprises a request receiving module, a request sending module and a request sending module, wherein the request receiving module is used for receiving a remote sensing data service request sent by terminal equipment, the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
the grid searching module is used for carrying out grid searching based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
the tile mosaic module is used for carrying out dynamic tile mosaic according to the tile rule information and the multi-temporal remote sensing data and a preset time rule so as to obtain a service layer corresponding to the display range information;
and the image display module is used for receiving the calling of the terminal equipment to the service layer so as to display the remote sensing image corresponding to the service layer on the terminal equipment.
In another aspect, an embodiment of the present application provides a multi-temporal remote sensing data display device, which is used for a terminal device, where the device includes:
the operation receiving module is used for receiving remote sensing data service operation;
the request generating module is used for generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
the request sending module is used for sending the remote sensing data service request to a server so that the server can carry out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, dynamic tile embedding is carried out according to a preset time rule so as to obtain a service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
and the layer calling module is used for calling the service layer so as to display the remote sensing image corresponding to the service layer.
In another aspect, an embodiment of the present application provides a computer device, including: the device comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the method.
In still another aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the processor executes the computer program to implement the foregoing method.
The embodiment of the application provides a multi-temporal remote sensing data display method, a multi-temporal remote sensing data display device, equipment and a medium, wherein the method is used for a server, and a multi-temporal remote sensing data set is stored in the server; the method comprises the following steps: receiving a remote sensing data service request sent by terminal equipment, wherein the remote sensing data service request comprises display range information and tile rule information; carrying out grid search based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a service layer corresponding to the display range information; and sending the service layer to the terminal equipment so as to display the remote sensing image corresponding to the service layer on the terminal equipment. Namely, the method establishes a startup state link with metadata (multi-temporal remote sensing data set) through dynamic search (grid search) and dynamic mosaic, so that when a service request is received, required remote sensing data can be acquired from the metadata in real time through the dynamic link, dynamic tile mosaic is carried out in real time, and a dynamic service layer is generated and provided for front-end equipment. Therefore, the front end only needs to obtain all the remote sensing data related to the metadata from the dynamic service layer according to the input requirement, so that the remote sensing data is published in real time and comprehensively, and the problem of data loss during publishing does not exist. On the basis, only one layer is called all the time by the front end, so that the access amount of the front end is not increased due to the fact that the published data are not lost, the loading performance bottleneck caused by multi-time-phase multi-layer data calling is avoided, the display smoothness of the front end is guaranteed, and the user experience is remarkably improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a computer device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a multi-temporal remote sensing data display system according to an embodiment of the present application;
FIG. 3 is a schematic flowchart of a multi-temporal remote sensing data display method according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of one embodiment of step S40 of FIG. 3;
FIG. 5 is a schematic flow chart diagram illustrating one embodiment of step S60 of FIG. 3;
fig. 6 is a flowchart illustrating a method for generating a service layer according to an embodiment of the present application;
FIG. 7 is a schematic flowchart of another multi-temporal remote sensing data display method according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a multi-temporal remote sensing data display device according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another multi-temporal remote sensing data display device according to an embodiment of the present application.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The main solution of the embodiment of the application is as follows: the method is used for a server, and a multi-temporal remote sensing data set is stored in the server; the method comprises the following steps: receiving a remote sensing data service request sent by terminal equipment, wherein the remote sensing data service request comprises display range information and tile rule information; carrying out grid search based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a service layer corresponding to the display range information; and sending the service layer to the terminal equipment so as to display the remote sensing image corresponding to the service layer on the terminal equipment.
In the existing multi-temporal remote sensing image service publishing technology, an offline service layer is generally generated in advance from a remote sensing image and is used for being called by front-end equipment to publish. By adopting the method, the spatial overlapping part between the image frames can only keep the data content of one time phase, and the data of the covered part is abandoned, thereby causing data loss; and multi-time-phase data are combined into one time phase, and the time information of the remote sensing data is mixed up. That is to say, the method is static stitching, that is, the image is stitched in advance before being referred to, but the data of the part covered by the stitched image is discarded, so that the data is lost, the image cannot be updated in real time, the publishing service cannot be provided according to the real-time requirement, and the problem of data loss during publishing exists.
In addition, the map sheets of each time phase are published as an independent service map layer according to a unified rule, and complete map sheet information and time phase information are maintained; and the application front end loads data by taking the service layer as a basic unit. The method has the problems that if a plurality of layers of a plurality of time phases exist in a window range, the front end needs to be loaded and rendered layer by layer, and when the number of the layers (the number of the time phases) in a certain area is more than 5, the loading efficiency is greatly reduced, so that the normal use is influenced. Meanwhile, because multi-layer loading is difficult to realize, user experience of seamless browsing cannot be realized. (if there are 6 image layers, loading the 6 image layers one by one will slow the front-end response, while loading more layers, e.g. 60 image layers loading will cause the front-end to collapse). With the development of aerospace remote sensing, the time resolution of data acquisition is continuously increased, and once-a-day even quasi-real-time earth observation becomes practical.
Therefore, the application provides a solution, a dynamic link is established with metadata (multi-temporal remote sensing dataset) through grid search, so that when a service request is received, the required remote sensing data can be obtained from the metadata in real time through the dynamic link, dynamic tile embedding is carried out in real time, and a dynamic service layer is generated and provided for front-end equipment. Therefore, the front end only needs to obtain the publishing of all the remote sensing data related to the metadata from the dynamic service layer according to the input requirement, and therefore the problem of data loss during publishing does not exist. On the basis, because the front end is called only one layer all the time, the access amount of the front end is not increased due to the fact that the release data are not lost, the display smoothness of the front end is guaranteed, and the user experience is remarkably improved.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a computer device in a hardware operating environment according to an embodiment of the present application. The computer device may be a terminal device or a server.
As shown in fig. 1, the computer apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 is not intended to be limiting of computer devices and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a data storage module, a network communication module, a user interface module, and an electronic program.
In the computer device shown in fig. 1, the network interface 1004 is mainly used for data communication with the server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the computer device of the present application may be provided in the computer device, and the computer device calls the multi-temporal remote sensing data display apparatus stored in the memory 1005 through the processor 1001 and executes the multi-temporal remote sensing data display method provided by the embodiment of the present application.
Referring to fig. 2, an embodiment of the present application provides a multi-temporal remote sensing data distribution system, which includes a terminal device and a server, where the terminal device is in communication connection with the server. Through the interaction between the terminal equipment and the server, the multi-temporal remote sensing data display method can be realized.
Referring to fig. 3, based on the multi-temporal remote sensing data distribution system provided in the foregoing embodiment, an embodiment of the present application provides a multi-temporal remote sensing data display method, where an execution subject of the method is a server in the foregoing embodiment, and a multi-temporal remote sensing data set is stored in the server; the multi-temporal remote sensing data set comprises a plurality of multi-temporal remote sensing data, the multi-temporal remote sensing data refers to image data acquired by satellites and aiming at certain areas at different times, and the multi-temporal remote sensing data is also called as image metadata in the embodiment.
The method comprises the following steps:
s20, receiving a remote sensing data service request sent by terminal equipment, wherein the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
in the implementation, the terminal device is also referred to as a front end, and the server is also referred to as a back end. The remote sensing data service request is generated by a request operation of a user on a display screen of the terminal device, and the service request can be an image (or a map) for releasing remote sensing data, an image (or a map) for updating remote sensing data, an image (or a map) for translating remote sensing data and the like. Since the remote sensing data belongs to image data, generally includes images in a large area, and in order to implement display in a limited range on the terminal device, the range of the remote sensing data displayed by the device must be selected, so that at least coordinate range information needs to be included when requesting, and in this embodiment, the coordinate range information is coordinates corresponding to the range requested to be displayed on the display screen of the terminal device. In this embodiment, in order to perform subsequent dynamic remote sensing data display based on the same display standard, the display standard of the display screen of the terminal device needs to be sent to the server together when the request is made, and therefore, the remote sensing data service request further includes tile rule information. The Tile rule information refers to the relevant information of the display grid divided by the display standard of the display screen (for example, the WMTS standard provided by OGC, open Geospatial Consortium in OGC, web Map Tile Service in WMTS, and Web Map Tile Service in OGC).
In the present embodiment, the remote sensing data is multi-temporal remote sensing data, that is, image data of the same place (or area) including different times. The time range may be limited or not limited in addition to the coordinate range information, and the current time may be set as the end by default when not limited.
As an optional implementation, the display range information further includes time range information.
In a specific implementation process, the time range information includes a range of acquisition time of the remote sensing data, for example, a time node generates 01 month and 01 day 2020, 00:00: 31/12/2020, 23.
Accordingly, a scenario for requesting a telemetry data service may include:
1. generating a remote sensing data service request according to a coordinate range displayed by a display screen of the terminal equipment;
2. generating a remote sensing data service request with a local range (for example, a manually-defined or selected area) in a coordinate range displayed by a display screen of the terminal device;
3. generating a remote sensing data service request according to the coordinate range in the step 1 and the time range selected by the user;
4. the telemetry data service request is generated with the coordinate range in 2 and the user selected time range.
In the embodiment, the time range defined by the user is received, and the remote sensing data can be displayed in real time according to the display time requirement of the user. On one hand, the remote sensing data in the target coordinate range and the target time range which the user wants to view can be conveniently viewed by the user; on the other hand, the remote sensing data of different time phases in the same area can be quickly viewed (only one layer is called each time, so the front-end interface access pressure is low) by a user on the premise of calling only one layer each time, so that the comparison and the viewing can be performed.
S40, carrying out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
in the specific implementation process, the grid search refers to performing spatial computation through grid coding by using a spatial grid retrieval technology. In this embodiment, according to the coordinate range information, the display grid in the tile rule information, and the corresponding relationship between the display grid and the geographic coordinate in the multi-temporal remote sensing data set, grid search needs to be performed on data in the multi-temporal remote sensing data set to find multi-temporal remote sensing data corresponding to all display grids in the coordinate range information and/or the time range information.
Specifically, in this embodiment, the grid search is also called a grid index, and belongs to one of the spatial indexes, and the basic principle is as follows: the geographic space is divided into grids with equal or unequal sizes, each grid corresponds to a storage space, and the spatial objects falling into the grids are registered on the index entries. For example, in this embodiment, a rectangular geographic area of a graph in the remote sensing data set may be equally divided into m rows and n columns, that is, a two-dimensional data space may be regularly divided, so as to obtain an m × n small rectangular grid area. Each grid area is an index item, a dynamic storage area is distributed, and all or part of the marks of the space objects falling into the grid and the circumscribed rectangles are stored into the grid. Wherein m and n are both positive integers.
In the grid search of this embodiment, a new coordinate system, that is, a start-stop point coordinate system, may be provided, rectangles may be mapped into the start-stop point coordinate system to form two points, and each grid of each level in the spatial grid system may be mapped into the start-stop point coordinate system in the first dimension and the second dimension, respectively, so that the geographic grid may be represented by points in the generated first-dimension grid map and the second-dimension grid map, and similarly, the index rectangle or the search range matrix may also be mapped into the start-stop point coordinate system in the first dimension and the second dimension, respectively, so that the comparison between the index rectangle or the search range matrix and the grid may be converted from the comparison between rectangles into the comparison between point lines, thereby greatly improving the speed of grid index and search.
It will be appreciated that fast grid retrieval speed is critical to the implementation of this embodiment. In the embodiment, in order to reduce the access pressure of the front end, only one dynamic layer is provided, and the remote sensing data needs to be frequently interacted with the multi-temporal remote sensing data set (grid retrieval) in an all-round manner, so that the efficiency of interacting with the multi-temporal remote sensing data set (grid retrieval efficiency) directly affects the updating rate of the dynamic layer, the efficiency of accessing the dynamic layer by the front end is affected, and the use experience of a user is affected finally.
As an optional implementation manner, referring to fig. 4, the step of performing a grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set includes:
s402, resolving the coordinate range information to obtain geographic coordinate range information corresponding to the coordinate range information; the geographic coordinate range information is coordinate information in multi-temporal remote sensing data;
in the specific implementation process, the geographic coordinate range information refers to longitude and latitude coordinate information in multi-temporal remote sensing data. And resolving the coordinate range information, namely converting the coordinate range information of the display screen into longitude and latitude coordinates. Specifically, a mapping relation between the coordinates of the display screen and the longitude and latitude coordinates can be made in advance, and calculation is directly performed according to the mapping relation during calculation.
S404, carrying out grid search based on the geographic coordinate range information, the time range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set.
In a specific implementation process, the manner of determining the multi-temporal remote sensing data corresponding to the display range information may be to generate a file list of the multi-temporal remote sensing data corresponding to the display range information.
In the embodiment, the coordinate calculation is performed in advance, and then the grid search is performed, so that the time for grid search can be saved, the coordinate calculation during each grid search is avoided, and the generation efficiency of the layer is further improved.
And S60, according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a WMTS service layer corresponding to the display range information.
In a specific implementation process, tile tessellation refers to pixel filling of image data according to a display grid divided based on a tile rule. In this embodiment, the WMTS service layer is generated by real-time mosaic on demand, and therefore, is called dynamic tile mosaic. The WMTS Service layer refers to a Web Map Tile Service (Web Map Tile Service). WMTS provides a standardized solution for publishing digital map services using predefined tile methods. The embodiment is an OGC WMTS service layer. OGC, known as Open Geospatial Consortium (Open Geospatial Consortium), is primarily designed to establish standards relating to spatial information, location-based services. These so-called standards are actually technical documents of interfaces or codes, and different vendors and various GIS products can define the interfaces of open services, codes of spatial data storage, and methods of spatial operations against these documents. In the embodiment, only one WMTS service layer is generated, so that the front end can only call one layer when receiving various requirements, and the access pressure of the front end is greatly reduced.
The preset time rule refers to a time rule of the mosaic data, and in this embodiment, the preset time rule may be set according to a user requirement, for example, according to a time reverse order or a time sequence.
As an optional implementation manner, referring to fig. 5, the step of performing dynamic tile mosaic according to the tile rule information and the multi-temporal remote sensing data and according to a preset time rule to obtain a WMTS service layer corresponding to the display range information includes:
s602, according to the tile rule information and the multi-temporal remote sensing data, dynamically embedding multi-source images in the same grid into tiles according to a time reverse order or a time sequence to obtain a plurality of tile data;
in a specific implementation, the reverse chronological order is that the times are arranged in reverse order, for example, 13/5/4/2022, 12/5/2022, 11/4/5/2022. The time sequence is vice versa and is not described herein again. The multi-source image refers to remote sensing data with different sources. In order to form only one WMTS service layer, it is necessary to dynamically mosaic the multi-source images in the same grid into tiles. Specifically, dynamically embedding tiles according to time sequence means that the latest time dimension image is filled in the same grid at first, and the part of the grid which is not filled is filled with the image of the previous time dimension successively until the whole grid is filled, so that single tile data is formed. And repeating the method to obtain a plurality of tile data corresponding to each display grid.
S604, obtaining a WMTS service layer corresponding to the display range information based on the plurality of tile data.
In a specific implementation process, the tile data is data to be filled corresponding to each display grid, and a WMTS service layer corresponding to the display range information can be obtained by performing pixel filling.
In this embodiment, dynamic mosaic of images is performed according to a time-first order rule, and a remote sensing image whose display is the latest by default can be realized. This embodiment may provide a better experience for the user, since the user mostly refers to the latest remote sensing image by default.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating a generation principle of a WMTS service layer. In the figure, the multi-source image data includes three frames (i.e. T1, T2, and T3), the screen range of the display is a rectangular frame in the figure, the screen range includes a plurality of display grids, and each display grid uses T1, T2, and T3 to mosaic the multi-source image data according to a time sequence (i.e. a time-first principle in the figure) to obtain a plurality of tile data, thereby forming a service layer in the current screen range.
S80, receiving the calling of the terminal equipment to the WMTS service layer, and displaying the remote sensing image corresponding to the WMTS service layer on the terminal equipment.
In a specific implementation process, after the WMTS service layer is generated, the terminal device may call an interface of the WMTS service layer at any time according to the same display standard (OGC standard), so as to display a remote sensing image corresponding to the WMTS service layer on the terminal device.
As an optional implementation manner, after the step of receiving a call from the terminal device to the WMTS service layer to display a remote sensing image corresponding to the WMTS service layer on the terminal device, the method further includes:
and returning to the step of carrying out grid search based on the display range information and the tile rule information when a signal that the time reaches a preset moment is received or the multi-temporal remote sensing data set updating signal is received so as to update the remote sensing image displayed on the terminal equipment.
In the specific implementation process, the preset time refers to the time preset by the user, the calculation is started from the time node selected by the user, and the remote sensing image can be updated according to the method when the running time of the system reaches the preset time. As an alternative embodiment, the preset time may be set in plurality, and a plurality of preset times may be set according to the preset interval time. The preset interval time refers to the preset updating interval time, in this case, the calculation is started from the time node selected by the user, and when the preset updating interval time is reached, the preset time is reached, the remote sensing image can be updated according to the method.
The update signal of the multi-temporal remote sensing data set is generated when data is updated in the multi-temporal remote sensing data set, for example, a satellite returns the latest image data. In order to ensure the real-time performance of the remote sensing image, when a preset interval time is received or an update signal of the multi-temporal remote sensing data set is received, the step of performing grid search based on the display range information and the tile rule information is returned to update the remote sensing image displayed on the terminal device.
It should be understood that the above is only an example, and the technical solution of the present application is not limited in any way, and those skilled in the art can set the solution based on the needs in practical application, and the solution is not limited herein.
As can be easily found from the above description, the method of this embodiment receives a remote sensing data service request sent by a terminal device, where the remote sensing data service request includes display range information and tile rule information; carrying out grid search based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, performing dynamic tile embedding according to a preset time rule to obtain a WMTS service layer corresponding to the display range information; and sending the WMTS service layer to the terminal equipment so as to display a remote sensing image corresponding to the WMTS service layer on the terminal equipment. Namely, a dynamic link is established with metadata (multi-temporal remote sensing data set) through dynamic search (grid search) and dynamic mosaic, so that when a service request is received, required remote sensing data can be obtained from the metadata in real time through the dynamic link, dynamic tile mosaic is carried out in real time, and a dynamic service layer is generated and provided for front-end equipment. Therefore, the front end only needs to obtain all the remote sensing data related to the metadata from the dynamic service layer according to the input requirement, so that the remote sensing data is published in real time and comprehensively, and the problem of data loss during publishing does not exist. On the basis, only one layer is called all the time by the front end, so that the access amount of the front end is not increased due to the fact that the published data are not lost, the loading performance bottleneck caused by multi-time-phase multi-layer data calling is avoided, the display smoothness of the front end is guaranteed, and the user experience is remarkably improved.
Referring to fig. 7, based on the same inventive concept, an embodiment of the present application further provides a multi-temporal remote sensing data display method, where an execution subject of the method is a terminal device in the foregoing embodiment, and the method includes:
s102, receiving remote sensing data service operation;
in a specific implementation process, the remote sensing data service operation refers to an operation that a user requests a remote sensing data service, and the operation may be selection of contents displayed on a display screen, or input in an input box on the display screen, or a moving operation of an existing remote sensing image on the display screen, or the like. In specific implementation, the corresponding time on the time axis (day or year) is selected according to the requirements of the user for dynamic adjustment, and the images of the screen window are moved, so that data search query can be performed on the images at the position, and the total number of images in the period is large.
S104, generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
in a specific implementation process, the remote sensing data service request is the remote sensing data service request described in the foregoing embodiment, and is not described here again.
S106, sending the remote sensing data service request to a server so that the server carries out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a WMTS service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
in a specific implementation process, after the remote sensing data service request is sent to the server, the server generates a WMTS service layer according to the implementation mode.
And S108, calling the WMTS service layer to display the remote sensing image corresponding to the WMTS service layer.
In a specific implementation process, reference may be made to the foregoing embodiment for an implementation manner of invoking the WMTS service layer to display a remote sensing image corresponding to the WMTS service layer, which is not described herein again.
It should be noted that the multi-temporal remote sensing data display method in the present embodiment and the multi-temporal remote sensing data display method in the foregoing embodiment are only methods executed at different execution ends, and therefore, the described technical solutions are substantially the same, and therefore, the specific implementation and the achieved technical effect of the present embodiment may refer to the implementation in the foregoing embodiment, and are not described herein again.
Referring to fig. 8, based on the same inventive concept, an embodiment of the present application further provides a multi-temporal remote sensing data display device, which is used for a server, where a multi-temporal remote sensing data set is stored in the server; the device comprises:
the system comprises a request receiving module, a data processing module and a data processing module, wherein the request receiving module is used for receiving a remote sensing data service request sent by terminal equipment, the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
the grid searching module is used for carrying out grid searching based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
the tile embedding module is used for carrying out dynamic tile embedding according to the tile rule information and the multi-temporal remote sensing data and a preset time rule so as to obtain a WMTS service layer corresponding to the display range information;
and the image display module is used for receiving the call of the terminal equipment to the WMTS service layer so as to display the remote sensing image corresponding to the WMTS service layer on the terminal equipment.
It should be noted that, in this embodiment, each module in the multi-temporal remote sensing data display device corresponds to each step in the multi-temporal remote sensing data display method in the foregoing embodiment one to one, and therefore, the specific implementation and achieved technical effect of this embodiment may refer to the implementation of the multi-temporal remote sensing data display method, which is not described herein again.
Referring to fig. 9, based on the same inventive concept, an embodiment of the present application further provides a multi-temporal remote sensing data display apparatus, which is used for a terminal device, where the apparatus includes:
the operation receiving module is used for receiving remote sensing data service operation;
the request generation module is used for generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
the request sending module is used for sending the remote sensing data service request to a server so that the server can carry out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a WMTS service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
and the layer calling module is used for calling the WMTS service layer so as to display the remote sensing image corresponding to the WMTS service layer.
It should be noted that, in the present embodiment, each module in the multi-temporal remote sensing data display apparatus corresponds to each step in the multi-temporal remote sensing data display method in the foregoing embodiment one to one, and therefore, the specific implementation and the achieved technical effect of the present embodiment may refer to the implementation of the multi-temporal remote sensing data display method, which is not described herein again.
Furthermore, in an embodiment, the present application also provides a computer device comprising a processor, a memory and a computer program stored in the memory, which when executed by the processor, implements the steps of the method in the foregoing embodiments.
Furthermore, in an embodiment, the present application further provides a computer storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the steps of the method in the foregoing embodiments.
In some embodiments, the computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories. The computer may be a variety of computing devices including intelligent terminals and servers.
In some embodiments, the executable instructions may be in the form of a program, software module, script, or code written in any form of programming language, including compiled or interpreted languages, or declarative or procedural languages, and it may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
By way of example, executable instructions may correspond, but do not necessarily have to correspond, to files in a file system, and may be stored in a portion of a file that holds other programs or data, such as in one or more scripts in a hypertext Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub-programs, or portions of code).
As an example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices located at one site or distributed across multiple sites and interconnected by a communication network.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., a rom/ram, a magnetic disk, an optical disk) and includes instructions for enabling a multimedia terminal (e.g., a mobile phone, a computer, a television receiver, or a network device) to execute the method according to the embodiments of the present application.
While the present invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A multi-temporal remote sensing data display method is characterized by being used for a server, wherein a multi-temporal remote sensing data set is stored in the server; the method comprises the following steps:
receiving a remote sensing data service request sent by terminal equipment, wherein the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
carrying out grid search based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
according to the tile rule information and the multi-temporal remote sensing data, carrying out dynamic tile embedding according to a preset time rule to obtain a service layer corresponding to the display range information;
and receiving the call of the terminal equipment to the service layer so as to display the remote sensing image corresponding to the service layer on the terminal equipment.
2. The method of claim 1, wherein the display range information further comprises time range information, the time range information comprising an acquisition time range of the remote sensing data in the multi-temporal remote sensing data set.
3. The method of claim 2, wherein the step of performing a grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set comprises:
resolving the coordinate range information to obtain geographic coordinate range information corresponding to the coordinate range information; the geographic coordinate range information is coordinate information in multi-temporal remote sensing data;
and carrying out grid search based on the geographic coordinate range information, the time range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set.
4. The method according to claim 1, wherein the preset time rule is set according to the requirement of a user, and the preset time rule comprises: reverse chronological or chronological order;
the step of performing dynamic tile embedding according to the tile rule information and the multi-temporal remote sensing data and a preset time rule to obtain a service layer corresponding to the display range information includes:
according to the tile rule information and the multi-temporal remote sensing data, dynamically embedding multi-source images in the same grid into tiles according to a time reverse order or a time sequence to obtain a plurality of tile data;
obtaining a service layer corresponding to the display range information based on the plurality of tile data;
the step of dynamically embedding the multi-source images in the same grid into tiles according to the reverse time sequence or the time sequence according to the tile rule information and the multi-temporal remote sensing data to obtain a plurality of tile data comprises the following steps:
filling the same grid with images in a time reverse order or a time order, and filling the part which is not filled with the grid with the images in the previous time dimension successively until the whole grid is filled with the images in the previous time dimension to form single tile data; and repeating the step of forming the single tile data to obtain a plurality of tile data corresponding to each grid.
5. The method according to claim 1, wherein after the step of receiving the call from the terminal device to the service layer to display the remote sensing image corresponding to the service layer on the terminal device, the method further comprises:
and returning to the step of carrying out grid search based on the display range information and the tile rule information when a signal that the time reaches a preset moment is received or the multi-temporal remote sensing data set updating signal is received so as to update the remote sensing image displayed on the terminal equipment.
6. A multi-temporal remote sensing data display method is used for a terminal device, and comprises the following steps:
receiving remote sensing data service operation;
generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
sending the remote sensing data service request to a server so that the server carries out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, dynamic tile embedding is carried out according to a preset time rule so as to obtain a service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
and calling the service layer to display the remote sensing image corresponding to the service layer.
7. The multi-temporal remote sensing data display device is used for a server, wherein a multi-temporal remote sensing data set is stored in the server; the device comprises:
the system comprises a request receiving module, a data processing module and a data processing module, wherein the request receiving module is used for receiving a remote sensing data service request sent by terminal equipment, the remote sensing data service request comprises display range information and tile rule information, and the display range information comprises coordinate range information;
the grid searching module is used for carrying out grid searching based on the display range information and the tile rule information so as to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set;
the tile embedding module is used for carrying out dynamic tile embedding according to the tile rule information and the multi-temporal remote sensing data and a preset time rule so as to obtain a service layer corresponding to the display range information;
and the image display module is used for receiving the calling of the terminal equipment to the service layer so as to display the remote sensing image corresponding to the service layer on the terminal equipment.
8. A multi-temporal remote sensing data display apparatus, for a terminal device, the apparatus comprising:
the operation receiving module is used for receiving remote sensing data service operation;
the request generation module is used for generating a remote sensing data service request based on the remote sensing data service operation; the remote sensing data service request comprises display range information and tile rule information, wherein the display range information comprises coordinate range information;
the request sending module is used for sending the remote sensing data service request to a server so that the server can carry out grid search based on the display range information and the tile rule information to determine multi-temporal remote sensing data corresponding to the display range information from the multi-temporal remote sensing data set; according to the tile rule information and the multi-temporal remote sensing data, dynamic tile embedding is carried out according to a preset time rule so as to obtain a service layer corresponding to the display range information; the server stores a multi-temporal remote sensing data set;
and the layer calling module is used for calling the service layer so as to display the remote sensing image corresponding to the service layer.
9. A computer arrangement, characterized in that the computer arrangement comprises a memory in which a computer program is stored and a processor which executes the computer program for implementing the method as claimed in any one of claims 1-6.
10. A computer-readable storage medium having a computer program stored thereon, the computer program being executable by a processor to perform the method according to any one of claims 1-6.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140233809A1 (en) * | 2011-05-13 | 2014-08-21 | Beijing Electric Power Economic Research Institute | Method and Device for Processing Geological Information |
| CN107590226A (en) * | 2017-09-05 | 2018-01-16 | 中国电子科技集团公司第二十八研究所 | A kind of map vector rendering intent based on tile |
| CN109856056A (en) * | 2018-12-26 | 2019-06-07 | 北京林业大学 | A kind of Application of Remote Sensing Technique To Sandy Desertification method for quickly identifying |
| US20200116825A1 (en) * | 2017-03-16 | 2020-04-16 | Fastree3D Sa | Method and device for optimizing the use of emitter and detector in an active remote sensing application |
| CN111583133A (en) * | 2020-04-20 | 2020-08-25 | 国家卫星气象中心(国家空间天气监测预警中心) | Adaptive remote sensing image pixel default filling method, device, equipment and medium |
| CN112070775A (en) * | 2020-09-29 | 2020-12-11 | 成都星时代宇航科技有限公司 | Remote sensing image optimization processing method and device, electronic equipment and storage medium |
| CN112163533A (en) * | 2020-10-07 | 2021-01-01 | 智博云信息科技(广州)有限公司 | Data processing method and system for remote sensing monitoring natural disasters |
| CN113064572A (en) * | 2021-05-10 | 2021-07-02 | 国家基础地理信息中心 | Three-dimensional space-time simulation method and device for remote sensing image data |
| CN113344943A (en) * | 2021-05-26 | 2021-09-03 | 北京国信空间信息科技有限公司 | Mosaic coding method for tile fragments of remote sensing image |
| CN113434736A (en) * | 2021-06-10 | 2021-09-24 | 中国科学院电子学研究所苏州研究院 | Multi-dimensional mixed indexing method and system for remote sensing big data |
| CN113760189A (en) * | 2021-08-19 | 2021-12-07 | 上海卫星工程研究所 | Load data filling storage method and system |
| CN114092804A (en) * | 2021-11-06 | 2022-02-25 | 支付宝(杭州)信息技术有限公司 | Method and device for identifying remote sensing image |
| CN114494864A (en) * | 2022-01-17 | 2022-05-13 | 中国科学院地理科学与资源研究所 | Method for extracting phenological information of snow based on remote sensing data |
| CN114494859A (en) * | 2021-12-30 | 2022-05-13 | 中国科学院地理科学与资源研究所 | Long-time sequence accumulated snow remote sensing data set construction method based on remote sensing data |
| CN114579778A (en) * | 2022-03-07 | 2022-06-03 | 江苏天汇空间信息研究院有限公司 | Data retrieval management system and method based on remote sensing number |
-
2022
- 2022-09-16 CN CN202211126035.0A patent/CN115203594B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140233809A1 (en) * | 2011-05-13 | 2014-08-21 | Beijing Electric Power Economic Research Institute | Method and Device for Processing Geological Information |
| US20200116825A1 (en) * | 2017-03-16 | 2020-04-16 | Fastree3D Sa | Method and device for optimizing the use of emitter and detector in an active remote sensing application |
| CN107590226A (en) * | 2017-09-05 | 2018-01-16 | 中国电子科技集团公司第二十八研究所 | A kind of map vector rendering intent based on tile |
| CN109856056A (en) * | 2018-12-26 | 2019-06-07 | 北京林业大学 | A kind of Application of Remote Sensing Technique To Sandy Desertification method for quickly identifying |
| CN111583133A (en) * | 2020-04-20 | 2020-08-25 | 国家卫星气象中心(国家空间天气监测预警中心) | Adaptive remote sensing image pixel default filling method, device, equipment and medium |
| CN112070775A (en) * | 2020-09-29 | 2020-12-11 | 成都星时代宇航科技有限公司 | Remote sensing image optimization processing method and device, electronic equipment and storage medium |
| CN112163533A (en) * | 2020-10-07 | 2021-01-01 | 智博云信息科技(广州)有限公司 | Data processing method and system for remote sensing monitoring natural disasters |
| CN113064572A (en) * | 2021-05-10 | 2021-07-02 | 国家基础地理信息中心 | Three-dimensional space-time simulation method and device for remote sensing image data |
| CN113344943A (en) * | 2021-05-26 | 2021-09-03 | 北京国信空间信息科技有限公司 | Mosaic coding method for tile fragments of remote sensing image |
| CN113434736A (en) * | 2021-06-10 | 2021-09-24 | 中国科学院电子学研究所苏州研究院 | Multi-dimensional mixed indexing method and system for remote sensing big data |
| CN113760189A (en) * | 2021-08-19 | 2021-12-07 | 上海卫星工程研究所 | Load data filling storage method and system |
| CN114092804A (en) * | 2021-11-06 | 2022-02-25 | 支付宝(杭州)信息技术有限公司 | Method and device for identifying remote sensing image |
| CN114494859A (en) * | 2021-12-30 | 2022-05-13 | 中国科学院地理科学与资源研究所 | Long-time sequence accumulated snow remote sensing data set construction method based on remote sensing data |
| CN114494864A (en) * | 2022-01-17 | 2022-05-13 | 中国科学院地理科学与资源研究所 | Method for extracting phenological information of snow based on remote sensing data |
| CN114579778A (en) * | 2022-03-07 | 2022-06-03 | 江苏天汇空间信息研究院有限公司 | Data retrieval management system and method based on remote sensing number |
Non-Patent Citations (4)
| Title |
|---|
| SHENGBO WANG 等: "Research on spatio-temporal fusion algorithm of remote sensing image based on GF-1 WFV and Sentinel-2 satellite data", 《INTERNATIONAL CONFERENCE ON GEOLOGY, MAPPING AND REMOTE SENSING》 * |
| 何超琦 等: "基于时空融合的遥感图像镶嵌方法", 《激光与光电子学进展》 * |
| 费浩: "综合多特征的县域尺度棉花种植面积遥感提取方法", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 陈昱行 等: "基于COG的遥感影像地图服务快速构建方法", 《海洋科学》 * |
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