CN114898057B - Geological profile three-dimensional space information extraction method and device and storage medium - Google Patents
Geological profile three-dimensional space information extraction method and device and storage medium Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06T7/10—Segmentation; Edge detection
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20112—Image segmentation details
- G06T2207/20132—Image cropping
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20112—Image segmentation details
- G06T2207/20164—Salient point detection; Corner detection
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
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Abstract
The invention discloses a geological profile three-dimensional space information extraction method and device, and a storage medium, comprising the following steps: obtaining a geological profile; cutting a target area on the geological profile, naming the cut image according to a rule, and simultaneously converting the data format of the cut image into a standard data format; calculating the corner coordinates of the cut image according to the coordinate information of the geological profile; calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and establishing a three-dimensional geological profile; geological information is extracted on the three-dimensional geological profile. By adopting the technical scheme of the invention, the three-dimensional space position recovery of the two-dimensional geologic map can be quickly and accurately realized, the extraction of all elements of the geologic information carried by the section map can be realized, the accurate data support is provided for three-dimensional geologic modeling, and the modeling efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of geological modeling, and particularly relates to a geological profile three-dimensional space information extraction method and device and a storage medium.
Background
The geological map is an important form for geological personnel to comprehensively express geological information according to geological knowledge and experience, wherein the geological profile is the most common geological result map. The geological profile map has rich geological information (various structures, strata, rock types, mineral products, geometric forms, attributes and the like) and is easy to acquire, and the geological profile map is used as a common data source for three-dimensional geological modeling. Therefore, how to extract and use two-dimensional geological information carried and expressed on geological profile is a fundamental task of three-dimensional geological modeling.
The conventional geological profile information extraction method comprises the following steps: firstly, extracting target ground points and lines in a two-dimensional space sense by vectorization and other methods, then carrying out three-dimensional space conversion on extracted target points and line files by translation, rotation, coordinate calculation and the like to enable the extracted target points and line files to have real three-dimensional space coordinates, and then using the converted data to participate in three-dimensional geological modeling. Such methods have the following problems: (1) The collected sectional images are required to be vector data, and the actual situation is that the collected data are usually in a picture format, so that vectorization work is required; (2) When the number of the section views related to the three-dimensional geologic modeling is huge and the geologic elements are complex, the problems of large workload, low efficiency, even non-ideal precision and the like exist; (3) All geological elements contained in the sectional view cannot be extracted and used to cause information loss, so that the efficiency and the accuracy of three-dimensional geological modeling are affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a three-dimensional space information extraction method and device for a geological profile and a storage medium, which can quickly and accurately realize three-dimensional space position recovery of a two-dimensional geological profile, can realize full-element extraction of the geological information carried by the profile, provide accurate data support for three-dimensional geological modeling and improve modeling efficiency.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A geological profile three-dimensional space information extraction method comprises the following steps:
S1, acquiring a geological profile;
S2, cutting a target area on the geological profile, naming the cut image according to a rule, and simultaneously converting the data format of the cut image into a standard data format;
s3, calculating corner coordinates of the cut image according to the coordinate information of the geological profile;
S4, calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and establishing a three-dimensional geological profile;
and S5, extracting geological information from the three-dimensional geological profile.
Preferably, the geological profile comprises: section line trend and coordinate information.
Preferably, the cutting mode of the target area on the geological section is divided into whole-image cutting and partition cutting of the target area according to whether the trend of the section line is consistent; when the section lines in the target area are consistent, adopting a whole-picture cutting mode to cut the image block of the target area as a whole; and when the section lines of the target area are inconsistent, dividing the cutting area according to inflection points with different section lines, and carrying out partition cutting.
Preferably, the cropped image is named according to a spatial position relation rule.
Preferably, the standard data format includes BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
The invention also provides a geological profile three-dimensional space information extraction device, which comprises:
the acquisition module is used for acquiring the geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the clipping module is used for clipping a target area on the geological profile, naming the clipped image according to rules, and converting the data format of the clipped image into a standard data format;
The calculating module is used for calculating the corner coordinates of the cut image according to the coordinate information;
The building module is used for calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and building a three-dimensional geological profile;
and the extraction module is used for extracting the geological information on the three-dimensional geological profile.
Preferably, the geological profile comprises: section line trend and coordinate information.
Preferably, the cropped image is named according to a spatial position relation rule.
Preferably, the standard data format includes BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
The present invention also provides a storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement a geological profile three-dimensional spatial information extraction method.
The invention cuts the target area on the geological profile; calculating the corner coordinates of the cut image according to the coordinate information of the geological profile; calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and establishing a three-dimensional geological profile; geological information is extracted on the three-dimensional geological profile. By adopting the technical scheme of the invention, the three-dimensional space position recovery of the two-dimensional geologic map can be quickly and accurately realized, the extraction of all elements of the geologic information carried by the section map can be realized, the accurate data support is provided for three-dimensional geologic modeling, and the modeling efficiency is improved.
Drawings
FIG. 1 is a flow chart of a three-dimensional space information extraction method of a geological profile;
FIG. 2 is a schematic view of image cropping and corner coordinate calculation according to the present invention;
FIG. 3 is a three-dimensional geological profile after calibration of the spatial position of an image created using the method of the present invention;
FIG. 4 is a three-dimensional spatial map of geological information extracted by the method of the present invention;
FIG. 5 is a three-dimensional geologic model created using the method of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1:
As shown in fig. 1, the invention provides a three-dimensional space information extraction method of a geological profile, which comprises the following steps:
S1, acquiring a geological profile; wherein the geological profile comprises: section line trend and coordinate information;
S2, cutting a target area on the geological profile, naming the cut image according to rules, and simultaneously converting the data format of the cut image into a standard data format;
S3, calculating corner coordinates of the cut image according to the coordinate information;
S4, calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and establishing a three-dimensional geological profile;
and S5, extracting geological information from the three-dimensional geological profile.
In step S2, the method of cutting the target area on the geological profile is divided into whole-image cutting and partition (segment) cutting of the target area according to whether the section lines are consistent; when the section lines in the target area are consistent in trend, a whole-image cutting mode is adopted, and the target area is cut as an integral image block; when the trend of the section line of the target area is inconsistent, dividing a cutting area according to inflection points of different trend of the section line, and carrying out zonal (segmented) cutting; cutting the image in a rectangular frame shape; when cutting, the cutting frame is required to be ensured to be accurate, and the space error caused by inaccurate cutting is avoided.
In step S2, as an implementation manner of the present embodiment, the cropped image is named according to a spatial position relationship rule. The named image name contains at least 3 key fields: area_section_image, wherein AREA represents the name or number of the AREA or mine, section represents the Section line name or number, image represents the Image sequence number, and when partition (segmentation) clipping is adopted, the Image sequence number is numbered sequentially from left to right.
In step S2, the cut image data format is converted into a standard data format which can be identified by SKUA-GOCAD software, wherein the standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
As an implementation manner of this embodiment, in step S3, the calculating the coordinates of the corner points of the clipped image specifically includes: defining the 4 corner points of the clipping image as: lower left (X), upper left (V), upper right (W), lower right (U); each corner coordinate format is (x, y, z), wherein x, y are horizontal position coordinates of the corner, and z is a position coordinate of the corner on the vertical depth domain. The calculated corner coordinates are arranged into a spreadsheet for use in other adjacent image space calibration with common points or common edges, so that the workload increase caused by repeated calculation is avoided, and the method can also be used for quality control and precision verification. As shown in fig. 2, the image corner coordinate calculation is further described: knowing the coordinate information of the drilling holes on the sectional view, the image is cut out in a rectangular frame shape (shown by a dotted line frame), and the coordinates of 4 corner points (X, U, V, W) of the cut-out image are respectively calculated according to the space position analysis: x point coordinates (X 0,Y0,Z0-ho), U point coordinates (X 0,Y0,Z1), V point coordinates (X 2,Y2,Z0-ho), and W point coordinates (X 2,Y2,Z1). It should be noted that, the calculation of the corner coordinates should be performed according to different situations of the target area.
As an implementation manner of this embodiment, the step S4 is implemented by SKUA-GOCAD software, and the specific steps include:
(1) All the cut images are loaded into software through Import images-As 2D Voxet;
(2) 4 corner coordinates of the loaded image are defined through Voxet-Tools-Resize Voxet With Point;
(3) And (3) completing the image space position calibration, and establishing a three-dimensional geological profile as shown in fig. 3.
As an implementation manner of the embodiment, step S5, on the three-dimensional geological section map which is built, extracting the formation boundary line, lithology, fault target earth particle, line, geometric form and attribute based on the point and line related function module of SKUA-GOCAD software according to the requirement, and building a point and line three-dimensional model with real three-dimensional space coordinate information, as shown in fig. 4; in combination with other geologic data and geologic awareness, a deterministic modeling or stochastic modeling method is employed to build a three-dimensional geologic model, as shown in FIG. 5.
Example 2:
The invention provides a three-dimensional space information extraction device of a geological profile, which comprises:
the acquisition module is used for acquiring the geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the clipping module is used for clipping a target area on the geological profile, naming the clipped image according to rules, and converting the data format of the clipped image into a standard data format;
The calculating module is used for calculating the corner coordinates of the cut image according to the coordinate information;
The building module is used for calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and building a three-dimensional geological profile;
and the extraction module is used for extracting the geological information on the three-dimensional geological profile.
Example 3:
The present invention also provides a storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement a geological profile three-dimensional spatial information extraction method.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. The three-dimensional space information extraction method of the geological profile is characterized by comprising the following steps of:
S1, acquiring a geological profile;
S2, cutting a target area on the geological profile, naming the cut image according to a rule, and simultaneously converting the data format of the cut image into a standard data format;
s3, calculating corner coordinates of the cut image according to the coordinate information of the geological profile;
S4, calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and establishing a three-dimensional geological profile;
s5, extracting geological information on the three-dimensional geological profile;
In step S2, the cutting mode of the target area on the geological profile is divided into whole-image cutting and partition cutting of the target area according to whether the trend of the section line is consistent; when the section lines in the target area are consistent, adopting a whole-picture cutting mode to cut the image block of the target area as a whole; dividing a cutting area according to inflection points of different trend of the section lines when the trend of the section lines of the target area is inconsistent, and carrying out partition cutting;
In step S3, the coordinates of the corner points of the clipped image are calculated specifically as follows: the 4 corner points X, U, V, W of the cropped image are defined as: x is lower left, V is upper left, W is upper right, and U is lower right; each corner coordinate format is (x, y, z), wherein x and y are horizontal position coordinates of the corner, and z is the position coordinate of the corner on the vertical depth domain; the image corner coordinates are calculated as follows: based on the drilling coordinate information on the sectional view, cutting the image in a rectangular frame shape, and respectively calculating coordinates of 4 corner points X, U, V, W of the cut image according to space position analysis;
The step S4 is realized by SKUA-GOCAD software, and the specific steps include:
(1) All the cut images are loaded into software through Import images-As 2D Voxet;
(2) 4 corner coordinates of the loaded image are defined through Voxet-Tools-Resize Voxet With Point;
(3) Completing the calibration of the image space position and establishing a three-dimensional geological profile;
In step S5, the formation boundary, lithology, and fault target earth particles and geometry are extracted from the three-dimensional geological profile.
2. The method for extracting three-dimensional spatial information of a geologic profile of claim 1, wherein the geologic profile comprises: section line trend and coordinate information.
3. The method for extracting three-dimensional spatial information of geological profile according to claim 2, wherein the cropped image is named according to a spatial position relationship rule.
4. The method for extracting three-dimensional space information of geological profile of claim 3, wherein said standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
5. A geological profile three-dimensional spatial information extraction device, comprising:
the acquisition module is used for acquiring the geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the clipping module is used for clipping a target area on the geological profile, naming the clipped image according to rules, and converting the data format of the clipped image into a standard data format;
The calculating module is used for calculating the corner coordinates of the cut image according to the coordinate information;
The building module is used for calibrating the cut image at a three-dimensional space position according to the corner coordinates of the cut image, and building a three-dimensional geological profile;
the extraction module is used for extracting geological information on the three-dimensional geological profile;
The cutting module cuts the target area on the geological profile according to whether the trend of the section line is consistent or not, and the cutting module is divided into whole-image cutting and partition cutting of the target area; when the section lines in the target area are consistent, adopting a whole-picture cutting mode to cut the image block of the target area as a whole; dividing a cutting area according to inflection points of different trend of the section lines when the trend of the section lines of the target area is inconsistent, and carrying out partition cutting;
the calculating module calculates the corner coordinates of the cut image as follows: the 4 corner points X, U, V, W of the cropped image are defined as: x is lower left, V is upper left, W is upper right, and U is lower right; each corner coordinate format is (x, y, z), wherein x and y are horizontal position coordinates of the corner, and z is the position coordinate of the corner on the vertical depth domain; the image corner coordinates are calculated as follows: based on the drilling coordinate information on the sectional view, cutting the image in a rectangular frame shape, and respectively calculating coordinates of 4 corner points X, U, V, W of the cut image according to space position analysis;
the building module is realized by SKUA-GOCAD software, and the specific steps include:
(1) All the cut images are loaded into software through Import images-As 2D Voxet;
(2) 4 corner coordinates of the loaded image are defined through Voxet-Tools-Resize Voxet With Point;
(3) Completing the calibration of the image space position and establishing a three-dimensional geological profile;
And the extraction module extracts stratum boundary lines, lithology and fault target ground particles and geometric forms according to the three-dimensional geological section.
6. The apparatus for three-dimensional spatial information extraction of a geologic profile of claim 5, wherein the geologic profile comprises: section line trend and coordinate information.
7. The apparatus for extracting three-dimensional spatial information of geologic profile as defined in claim 6, wherein the cropped images are named according to a spatial positional relationship rule.
8. The apparatus for three-dimensional spatial information extraction of a geologic profile of claim 7, wherein said standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
9. A storage medium storing machine-executable instructions which, when invoked and executed by a processor, cause the processor to implement the geological profile three-dimensional spatial information extraction method of any one of claims 1 to 4.
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