A method and device for constructing a bin of a three-dimensional observation system, and an electronic device

Abstract

Embodiments of the present application provide a method and device for constructing a surface element sub-area of a three-dimensional observation system and electronic equipment. The method for constructing a surface element sub-area of a three-dimensional observation system comprises: converting an established orthogonal observation system template into a cross arrangement template according to parameters of a target three-dimensional observation system; generating shot-receiver distance data information of a surface element sub-area of the target three-dimensional observation system according to the cross arrangement template; obtaining a number of surface elements and a coverage frequency of the surface element sub-area of the target three-dimensional observation system according to distribution information of a center point of a shot-receiver pair in the cross arrangement template; establishing a blank surface element sub-area of the target three-dimensional observation system according to the coverage frequency and the number of surface elements; and assigning shot-receiver distance data information to each surface element of the blank surface element sub-area in sequence according to a corresponding relationship between an arrangement rule of a shot-receiver pair in the target three-dimensional observation system and an arrangement rule of a shot-receiver pair in the cross arrangement template, to obtain surface element sub-area data after full coverage.

Description

Technical Field

[0001] This application relates to the field of seismic exploration technology, and in particular to a method, apparatus and electronic device for constructing surface sub-regions of a three-dimensional observation system. Background Technology

[0002] In the acquisition of raw data for petroleum seismic exploration, the design of observation system parameters is a crucial step, affecting multiple aspects such as the investment cost, equipment input, and the achievement of geological exploration objectives. Currently, the evaluation of observation system parameters is mainly determined through theoretical analysis of surface element attributes. Commonly used surface element attributes include: source-receiver distance distribution, azimuth distribution, wavefield continuity, and wavefield homogeneity. All of these attribute analyses are based on surface element sub-regions; that is, sub-region data forms the foundation for observation system attribute analysis.

[0003] In related technologies, specialized software is mainly used to construct sub-regions of surface data. Shot-receiver points are then deployed using an observation system template, and rolling shots are fired according to rolling parameters until a full-coverage area is obtained. Only then can sub-region data be acquired for subsequent surface analysis. This traditional calculation method requires a large number of shot-receiver pairs and is time-consuming. Especially with the increasing complexity of current seismic exploration targets and the increasing sophistication of observation system parameters (coverage count, point spacing, line spacing), constructing sub-region data has become increasingly complex, severely impacting the efficiency of observation system attribute analysis.

[0004] Therefore, how to efficiently and accurately construct the surface sub-regions of a three-dimensional seismic observation system is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] This application provides a method, apparatus, and electronic device for constructing surface sub-regions of a three-dimensional observation system, which can be used to efficiently and accurately construct surface sub-regions of a three-dimensional seismic observation system.

[0006] One embodiment of this application provides a method for constructing a surface sub-region of a three-dimensional observation system. The method includes: converting an established orthogonal observation system template into a cross-shaped arrangement template based on parameters of the target three-dimensional observation system; generating shot-receiver distance data information of the surface sub-region of the target three-dimensional observation system based on the cross-shaped arrangement template; obtaining the number of surface elements and the coverage count of the surface sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template; wherein the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped arrangement template; establishing a blank surface sub-region of the target three-dimensional observation system based on the coverage count and the number of surface elements; and sequentially assigning the shot-receiver distance data information to each surface element of the blank surface sub-region according to the correspondence between the arrangement rules of the shot-receiver pairs in the target three-dimensional observation system and the arrangement rules of the shot-receiver pairs in the cross-shaped arrangement template, thereby obtaining the surface sub-region data after full coverage.

[0007] In some embodiments, the cross-shaped arrangement template includes a detector line composed of multiple detectors and a shot line composed of multiple shot points perpendicular to the detector line; the step of converting the established orthogonal observation system template into a cross-shaped arrangement template according to the parameters of the target three-dimensional observation system includes: converting any detector line in the orthogonal observation system template, and the shot-detector relationship pair composed of shot points that have a shot-detector relationship with the detector points on the detector line, into a detector line in the cross-shaped arrangement template, and a shot line that intersects the center point of the detector line perpendicularly; wherein, the length of the detector line layout in the cross-shaped arrangement template is the same as the length of the detector line in the orthogonal observation system template, and the length of the shot line in the cross-shaped arrangement template is twice the maximum non-longitudinal length of the target three-dimensional observation system.

[0008] In some embodiments, generating shot-receiver distance data information of the surface sub-region of the target three-dimensional observation system according to the cross-shaped arrangement template includes: combining each shot point and each receiver point in the cross-shaped arrangement template one by one to obtain the shot-receiver distance data information.

[0009] In some embodiments, obtaining the number of facets and the number of coverage times of the target three-dimensional observation system based on the distribution information of the shot-receiver pair center points in the cross-shaped template includes: dividing the cross-shaped template along the receiver line direction and the shot line direction, respectively, according to the receiver line distance and the shot line distance, to obtain multiple cell grids containing shot-receiver pair center points; taking the number of shot-receiver pair center points contained in any cell grid as the number of facets in the target three-dimensional observation system; and taking the number of cell grids as the number of coverage times of the target three-dimensional observation system.

[0010] One embodiment of this application provides a device for constructing a surface sub-region of a three-dimensional observation system. The device includes: a conversion module for converting an established orthogonal observation system template into a cross-shaped arrangement template based on parameters of the target three-dimensional observation system; a generation module for generating shot-receiver distance data information of the surface sub-region of the target three-dimensional observation system based on the cross-shaped arrangement template; an acquisition module for obtaining the number of surface elements and the number of coverages of the surface sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template; wherein the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped arrangement template; a creation module for creating a blank surface sub-region of the target three-dimensional observation system based on the number of coverages and the number of surface elements; and an assignment module for sequentially assigning the shot-receiver distance data information to each surface element of the blank surface sub-region according to the correspondence between the arrangement rules of the shot-receiver pairs in the target three-dimensional observation system and the arrangement rules of the shot-receiver pairs in the cross-shaped arrangement template, thereby obtaining the surface sub-region data after full coverage.

[0011] This application provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the method described above when running the program.

[0012] This application provides a storage medium for storing a computer-readable program, which, when run, performs the method described above.

[0013] The technical solutions provided in this application have at least the following advantages compared with the prior art:

[0014] In the embodiments provided in this application, based on the parameters of the target 3D observation system, the established orthogonal observation system template is converted into a cross-shaped arrangement template; based on the cross-shaped arrangement template, the shot-receiver distance data information of the target 3D observation system's sub-area is generated; based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template, the number of facets and the coverage count of the target 3D observation system's sub-area are obtained; based on the coverage count and the number of facets, a blank facet sub-area of ​​the target 3D observation system is established; according to the correspondence between the arrangement rules of the shot-receiver pairs in the target 3D observation system and the arrangement rules of the shot-receiver pairs in the cross-shaped arrangement template, the shot-receiver distance data information is sequentially assigned to each facet of the blank facet sub-area, resulting in the full-coverage facet sub-area data. This allows for the efficient and accurate construction of facet sub-areas of the seismic 3D observation system. Attached Figure Description

[0015] This application will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0016] Figure 1 This is an exemplary flowchart of a method for constructing surface sub-regions of a three-dimensional observation system according to some embodiments of this application;

[0017] Figure 2 This is an exemplary schematic diagram of a cross-shaped arrangement template according to some embodiments of this application;

[0018] Figure 3 This is an exemplary schematic diagram of the center point array of the gun and receiver in a cross-shaped arrangement template according to some embodiments of this application;

[0019] Figure 4 This is an exemplary schematic diagram of a cell grid containing the center point of the shot-receiver pair, according to some embodiments of this application;

[0020] Figure 5 This is an exemplary schematic diagram of a blank surface element sub-region shown according to some embodiments of this application;

[0021] Figure 6A This is an exemplary schematic diagram of an orthogonal observation system template for a certain work area, according to some embodiments of this application;

[0022] Figure 6B This is an exemplary schematic diagram of a cross-shaped template obtained by orthogonal observation system template transformation in a certain work area according to some embodiments of this application;

[0023] Figure 7 This is an exemplary schematic diagram of the center point array and cell grid of the shot detector according to some embodiments of this application;

[0024] Figure 8 This is an exemplary schematic diagram showing the minimum shot-receiver distance calculated based on the constructed surface sub-region, according to some embodiments of this application;

[0025] Figure 9 This is an exemplary schematic diagram showing the maximum shot-receiver distance calculated based on the constructed surface sub-region, according to some embodiments of this application;

[0026] Figure 10 This is an exemplary schematic diagram of a spider graph calculated from a constructed facet sub-region, according to some embodiments of this application;

[0027] Figure 11 This is an exemplary schematic diagram of a device for constructing surface sub-regions of a three-dimensional observation system according to some embodiments of this application;

[0028] Figure 12 This is an exemplary structural diagram of an electronic device according to some embodiments of this application. Detailed Implementation

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0030] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other words can achieve the same purpose, they may be replaced by other expressions.

[0031] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0032] Flowcharts are used in this application to illustrate the operations performed by the system according to embodiments of this application. It should be understood that the preceding or following operations are not necessarily performed precisely in sequence. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0033] For ease of understanding, the technical solution of this application is described below with reference to the accompanying drawings and embodiments.

[0034] Figure 1 This is an exemplary flowchart of a method for constructing surface sub-regions of a three-dimensional observation system according to some embodiments of this application.

[0035] For an orthogonal 3D observation system that scrolls along a single line, a sub-region of a surface element signifies that it contains all shot-receiver pairs with shot-receiver distance attributes for the entire observation system template, without any duplicate pairs. The same applies to shot-receiver pairs contained in a cross-shaped template; that is, the shot-receiver pairs in a cross-shaped template and those in a sub-region of a 3D observation system are identical, differing only in their order. Furthermore, the attributes of a sub-region of a 3D observation system can represent the surface attributes of the entire coverage area. Therefore, when analyzing the surface attributes of a 3D observation system for an acquisition project, it is sufficient to analyze the attributes of only one sub-region.

[0036] Based on the above principles, such as Figure 1 As shown, the following steps are used to construct the surface sub-region of the target three-dimensional observation system.

[0037] Step S110: Based on the parameters of the target three-dimensional observation system, convert the established orthogonal observation system template into a cross-shaped arrangement template.

[0038] In the specific implementation process, the cross-shaped arrangement template includes a detector line composed of multiple detectors and a shot line composed of multiple shot points that intersect the center point of the detector line perpendicularly. It can transform any detector line in the orthogonal observation system template, as well as the shot-detector relationship pair composed of shot points that have a shot-detector relationship with the detector points on the detector line, into the detector line in the cross-shaped arrangement template and the shot line that intersects the center point of the detector line perpendicularly. The length of the detector line in the cross-shaped arrangement template is the same as the length of the detector line in the orthogonal observation system template, and the length of the shot line in the cross-shaped arrangement template is twice the maximum non-longitudinal length of the target three-dimensional observation system.

[0039] As an example only, the established orthogonal observation system template is an orthogonal observation system with 8 lines, 1 shot, and 8 channels, where the detector line spacing is the same as the shot point spacing, and the coverage is 16 times. Figure 2 The cross-shaped template obtained by converting the template of the observation system includes 8 receiver points and 8 shot points. The receiver points are numbered R1 to R8, and the shot points are numbered S1 to S8.

[0040] Step S120: Generate shot-receiver distance data information for the surface sub-region of the target three-dimensional observation system based on the cross-shaped arrangement template.

[0041] In practice, each shot point and each receiver point in the cross-shaped template can be combined one by one to obtain shot-receiver distance data. This is just an example. Figure 2 As shown, the gun-receiver distance data information may include: S1R1, S1R2, S1R3...

[0042] Step S130: Based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped template, obtain the number of surface elements and the number of coverage times of the surface element sub-region of the target three-dimensional observation system; wherein, the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped template.

[0043] In some embodiments, multiple cell grids containing the center points of the shot-detector pair can be obtained along the detector line direction and the shot line direction of the cross-shaped template, respectively, according to the detector line spacing and the shot line spacing; the number of center points of the shot-detector pair contained in any cell grid is taken as the number of cell elements in the sub-region of the target three-dimensional observation system; and the number of cell grids is taken as the number of coverage times of the target three-dimensional observation system.

[0044] As an example only, for such Figure 2 The cross-shaped arrangement template shown is as follows: Figure 3 As shown, receiver points R1 can be connected to S1, S2...S8 to form shot-receiver pairs. The midpoint of each line is the center point of a shot-receiver pair (M11 to M18). By matching each receiver point with each shot point, the center point array M(i,j) of all shot-receiver pairs in the cross-shaped template can be obtained.

[0045] The obtained center point array is divided into cell grids along the receiver and shot directions according to the distance between the shot and receiver, as follows: Figure 4 As shown, 16 cell grids can be obtained, and each cell grid contains 4 center points of the shot-receiver pair. Therefore, the coverage of the target 3D observation system is 16, and the number of cells in the sub-region of the target 3D observation system is 4.

[0046] Step S140: Based on the number of coverage times and the number of face elements, establish a blank face element sub-region of the target three-dimensional observation system.

[0047] As an example only, the newly created blank surface element sub-region is as follows: Figure 5 As shown, it has a total of 4 face elements, denoted as B(1,1), B(1,2), B(2,1), and B(2,2).

[0048] Step S150: According to the correspondence between the arrangement rules of the shot-receiver pairs in the target 3D observation system and the arrangement rules of the shot-receiver pairs in the cross arrangement template, the shot-receiver distance data information is sequentially assigned to each cell of the blank cell sub-region to obtain the cell sub-region data after full coverage.

[0049] As an example only, one can see from such Figure 4 The cross-shaped template shown is used to divide the grid into 16 cells. The shot-receiver pair data at the same location are extracted and assigned to the appropriate values ​​as follows: Figure 5 Each element in the shown sub-region can be, for example, the 16 shot-detector pairs in the upper left corner of each cell grid (i.e., Figure 4 The values ​​of M11, M31, M51, M71, M13, M33….M77 are sequentially assigned to surface element B(1, 1); the 16 shot-receiver pairs (i.e., M21, M41, M61, M81, M23, M83….M87) in the upper right corner of each cell grid are sequentially assigned to surface element B(1, 2), and so on, to obtain the shot-receiver pair data of the surface element sub-region, and the surface element sub-region is also constructed.

[0050] Verification using professional software shows that the sub-region data obtained in the above example is completely consistent with the sub-region data obtained by conventional rolling firing.

[0051] The following specific examples illustrate the correctness and beneficial effects of the method for constructing surface sub-regions in the three-dimensional observation system provided in this application.

[0052] The orthogonal observation system template used in a certain actual work area, such as Figure 6A As shown, it includes 36 lines, 320 channels, and 8 guns, with a channel spacing of 25m, a gun spacing of 25m, a detector line spacing of 200m, a gun line spacing of 200m, and a coverage count of 360 times.

[0053] The cross-shaped template obtained from the template equivalent transformation of the observation system is as follows: Figure 6B As shown, the blue detector points represent channel 320, and the red shot points perpendicular to the detector lines represent shot 288 (36*8=288). The channel spacing and shot spacing are both 25 meters.

[0054] Figure 7 This is a center point array and cell grid formed by the center points of the shot-detector pairs obtained in step S130. The center point array comprises 288 * 320 = 92160 shot-detector pairs. Each blue dot represents a center point of a shot-detector pair, and each center point has corresponding shot-detector distance and azimuth information. The center point array is divided into 20 * 18 = 360 cells (fine black grid) according to a 200-meter shot-detector distance and detector distance. Each cell contains 92160 / 360 = 256 shot-detector pair center points, indicating that the template is covered 360 times during rolling, and each sub-area contains 256 cells.

[0055] Following steps S140 and S150, a sub-region of the target 3D observation system is constructed, resulting in a sub-region containing 256 surfaces. Each surface contains 360 shot-receiver pairs, and the shot-receiver distance and azimuth information of each shot-receiver pair are also assigned.

[0056] The constructed sub-regions were verified and compared using professional software such as Kronoswiss and Green Mountain, and the results were completely consistent, indicating that the data is accurate and reliable. Figure 8 , Figure 9 as well as Figure 10 ,in Figure 8 This is a diagram showing the minimum shot-receiver distance calculated based on the constructed surface sub-region; Figure 9 This is a map showing the maximum shot-receiver distance calculated based on the constructed surface sub-regions; Figure 10 The azimuth spider map is calculated based on the constructed sub-regions. The spider map can show the shot-receiver distance on each sub-region in detail, as well as the distribution of azimuth angles.

[0057] In the embodiments provided in this application, the established orthogonal observation system template is converted into a cross-shaped arrangement template based on the parameters of the target 3D observation system. Based on the cross-shaped arrangement template, shot-receiver distance data information for the sub-regions of the target 3D observation system is generated. Based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template, the number of facets and the number of coverages in the sub-regions of the target 3D observation system are obtained. Based on the number of coverages and the number of facets, a blank sub-region of the target 3D observation system is established. According to the correspondence between the arrangement rules of the shot-receiver pairs in the target 3D observation system and the arrangement rules of the shot-receiver pairs in the cross-shaped arrangement template, the shot-receiver distance data information is sequentially assigned to each facet of the blank sub-region, resulting in the sub-region data after full coverage. Since it is not necessary to obtain the sub-region data after full coverage through rolling firing, the amount of computational data is small, and the computation speed is fast. Analysis shows that the computational workload of this method is 1 / n of the computational workload of related technologies, where n is the number of coverages of the observation system. That is, for an observation system with 100 coverages, the computational workload calculated using the method provided in this application is 1% of that of the methods provided in related technologies. The significant reduction in data computation has laid the foundation for the development of specialized data acquisition software for terminals with relatively scarce computing resources (such as mobile phones and tablets).

[0058] Figure 11 This is an exemplary schematic diagram of a device for constructing surface sub-regions of a three-dimensional observation system according to some embodiments of this application.

[0059] like Figure 11 As shown, the device for constructing the surface sub-region of the three-dimensional observation system includes: a conversion module 1110, a generation module 1120, an acquisition module 1130, a creation module 1140, and an assignment module 1150.

[0060] The conversion module 1110 is used to convert the established orthogonal observation system template into a cross-shaped arrangement template based on the parameters of the target three-dimensional observation system.

[0061] The generation module 1120 is used to generate shot-receiver distance data information of the surface sub-region of the target three-dimensional observation system according to the cross-shaped template.

[0062] The acquisition module 1130 is used to obtain the number of facets and the number of coverage times of the facet sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template; wherein, the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped arrangement template.

[0063] Module 1140 is used to establish a blank sub-region of the target three-dimensional observation system based on the number of coverages and the number of surface elements.

[0064] The assignment module 1150 is used to assign the shot-receiver distance data information to each cell of the blank cell sub-region in sequence according to the correspondence between the arrangement rules of the shot-receiver pairs in the target three-dimensional observation system and the arrangement rules of the shot-receiver pairs in the cross arrangement template, so as to obtain the cell sub-region data after full coverage.

[0065] In the embodiments of the above-mentioned three-dimensional observation system surface sub-region construction device, the specific processing of each module and the resulting technical effects can be referred to the relevant descriptions in the corresponding method embodiments, and will not be repeated here.

[0066] Figure 12 This is an exemplary structural diagram of an electronic device according to some embodiments of this application.

[0067] like Figure 12 As shown, the electronic device includes: at least one processor 1201, at least one communication interface 1202, at least one memory 1203, and at least one communication bus 1204. Optionally, the communication interface 1202 can be an interface for a communication module, such as the interface for a GSM module. The processor 1201 may be a CPU, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The memory 1203 may include high-speed RAM and may also include non-volatile memory, such as at least one disk storage device. The memory 1203 stores a program, and the processor 1201 calls the program stored in the memory 1203 to execute some or all of the above-described method embodiments.

[0068] This application relates to a storage medium for storing a computer-readable program, which, when run, performs some or all of the above-described method embodiments.

[0069] Optionally, the storage medium may be a non-transitory computer-readable storage medium, such as a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device.

[0070] Based on the same inventive concept, this application also provides a computer program product, including a computer program that, when executed by a processor, implements some or all of the above-described method embodiments.

[0071] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0072] Furthermore, this application uses specific terms to describe its embodiments. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this application do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0073] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this application are not intended to limit the order of the processes and methods of this application. Although the foregoing disclosure has discussed some currently considered useful embodiments of the invention through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments of this application. For example, while the system components described above can be implemented using hardware devices, they can also be implemented solely through software solutions, such as installing the described system on existing servers or mobile devices.

[0074] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0075] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0076] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this application, the entire contents of that patent are incorporated herein by reference. This excludes historical application documents that are inconsistent with or conflict with the content of this application, as well as documents that limit the broadest scope of the claims in this application (currently or subsequently appended to this application). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or terminology used in the supplementary materials of this application and the content of this application, the descriptions, definitions, and / or terminology used in this application shall prevail.

[0077] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

1. A method for constructing surface sub-regions in a three-dimensional observation system, characterized in that, The method includes: Based on the parameters of the target 3D observation system, the established orthogonal observation system template is converted into a cross-shaped arrangement template; Based on the cross-shaped template, the shot-receiver distance data information of the surface element sub-region of the target three-dimensional observation system is generated; the shot-receiver distance data information is obtained by combining each shot point and each receiver point in the cross-shaped template one by one. Based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped arrangement template, the number of facets and the number of coverage times of the facet sub-region of the target 3D observation system are obtained; wherein, the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped arrangement template; the facet sub-region contains all shot-receiver pairs with shot-receiver distance attributes of the orthogonal observation system template, and there are no shot-receiver pairs with duplicate attributes; the shot-receiver pairs possessed by the cross-shaped arrangement template and the shot-receiver pairs possessed by the facet sub-region are exactly the same, the only difference between the two is the arrangement order of the shot-receiver pairs; the attributes of the facet sub-region can represent the facet attributes of the full coverage area. Based on the number of coverages and the number of face elements, a blank face element sub-region of the target 3D observation system is established; the blank face element sub-region contains multiple face elements. According to the correspondence between the arrangement rules of the shot-receiver pairs in the target three-dimensional observation system and the arrangement rules of the shot-receiver pairs in the cross arrangement template, the shot-receiver distance data information is sequentially assigned to each cell of the blank cell sub-region to obtain the cell sub-region data after full coverage. The shot-receiver distance data is sequentially assigned to each cell of the blank cell sub-region to obtain the cell sub-region data after full coverage, specifically as follows: The shot-detector pair data at the same position are extracted from multiple cell grids obtained by dividing the cross-shaped template, and assigned to each cell of the blank cell sub-region to obtain the cell sub-region data after full coverage. The cell grid is divided along the detector line direction and the shot line direction of the cross-shaped template according to the detector line distance and the shot line distance, and contains multiple shot-detector pair center points.

2. The method according to claim 1, characterized in that, The cross-shaped template includes a detector line composed of multiple detectors and a shot line composed of multiple shot points perpendicular to the detector line. The step of converting the established orthogonal observation system template into a cross-shaped arrangement template based on the parameters of the target three-dimensional observation system includes: The test line in the orthogonal observation system template, and the shot-receiver relationship pair consisting of any test line and shot points that have a shot-receiver relationship with the test points on the test line, are transformed into test lines in the cross-shaped template and shot lines that intersect the center point of the test line perpendicularly; wherein, the length of the test lines in the cross-shaped template is the same as the length of the test lines in the orthogonal observation system template, and the length of the shot lines in the cross-shaped template is twice the maximum non-longitudinal length of the target three-dimensional observation system.

3. The method according to claim 2, characterized in that, The step of obtaining the number of facets and the number of coverage times of the facet sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pair in the cross-shaped arrangement template includes: Along the detector line direction and the shot line direction of the cross-shaped template, and according to the detector line spacing and the shot line spacing, multiple unit grids containing the center point of the shot-detector pair are obtained. The number of center points of the shot-receiver pair contained in any of the aforementioned cell grids shall be taken as the number of cell elements in the sub-region of the target three-dimensional observation system. The number of the unit grids is taken as the number of times the target 3D observation system covers.

4. A device for constructing surface sub-regions in a three-dimensional observation system, characterized in that, The apparatus comprising, using the method as described in any one of claims 1 to 3, includes: The conversion module is used to convert the established orthogonal observation system template into a cross-shaped arrangement template based on the parameters of the target 3D observation system. The generation module is used to generate shot-receiver distance data information of the surface sub-region of the target three-dimensional observation system according to the cross-shaped template. The acquisition module is used to obtain the number of facets and the number of coverage times of the facet sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pairs in the cross-shaped template; wherein, the center point of the shot-receiver pair is the center point of the line connecting each shot-receiver pair in the cross-shaped template; A module is established to create a blank sub-region of the target three-dimensional observation system based on the number of coverages and the number of surface elements. The assignment module is used to assign the shot-receiver distance data information to each cell of the blank cell sub-region in sequence according to the correspondence between the arrangement rules of the shot-receiver pairs in the target three-dimensional observation system and the arrangement rules of the shot-receiver pairs in the cross arrangement template, so as to obtain the cell sub-region data after full coverage.

5. The apparatus according to claim 4, characterized in that, The cross-shaped template includes a detector line composed of multiple detectors and a shot line composed of multiple shot points perpendicular to the detector line. The step of converting the established orthogonal observation system template into a cross-shaped arrangement template based on the parameters of the target three-dimensional observation system includes: The test line in the orthogonal observation system template, and the shot-receiver relationship pair consisting of any test line and shot points that have a shot-receiver relationship with the test points on the test line, are transformed into test lines in the cross-shaped template and shot lines that intersect the center point of the test line perpendicularly; wherein, the length of the test lines in the cross-shaped template is the same as the length of the test lines in the orthogonal observation system template, and the length of the shot lines in the cross-shaped template is twice the maximum non-longitudinal length of the target three-dimensional observation system.

6. The apparatus according to claim 5, characterized in that, The step of obtaining the number of facets and the number of coverage times of the facet sub-region of the target three-dimensional observation system based on the distribution information of the center points of the shot-receiver pair in the cross-shaped arrangement template includes: Along the detector line direction and the shot line direction of the cross-shaped template, and according to the detector line spacing and the shot line spacing, multiple unit grids containing the center point of the shot-detector pair are obtained. The number of center points of the shot-receiver pair contained in any of the aforementioned cell grids shall be taken as the number of cell elements in the sub-region of the target three-dimensional observation system. The number of the unit grids is taken as the number of times the target 3D observation system covers.

7. An electronic device comprising a memory and a processor, the memory storing a computer program, the processor executing the method as described in any one of claims 1 to 3 when running the program.

8. A storage medium for storing a computer-readable program, which, when executed, performs the method as described in any one of claims 1 to 3.

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