CN114898057A - 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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Abstract
The invention discloses a geological profile three-dimensional space information extraction method and device and a storage medium, wherein the method comprises the following steps: acquiring a geological profile; cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format; calculating the coordinates of the corner points 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 point coordinates of the cut image, and establishing a three-dimensional geological profile; and extracting geological information from the three-dimensional geological profile. By adopting the technical scheme of the invention, the three-dimensional space position recovery of the two-dimensional geological map can be quickly and accurately realized, the full element extraction of geological information borne by the profile map can be realized, accurate data support is provided for three-dimensional geological 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
Geological maps are an important form for geological personnel to comprehensively express geological information according to geological knowledge and experience, wherein a geological profile map is the most common geological result map. As geological information carried by the geological profile map is rich (information such as various structures, stratums, rock types, mineral products, geometric forms and attributes thereof) and easy to obtain, the geological profile map is used for three-dimensional geological modeling as a common data source. Therefore, how to extract and use the two-dimensional geological information carried and expressed on the geological profile is a fundamental work of three-dimensional geological modeling.
The conventional geological profile information extraction method comprises the following steps: firstly, target geological particles and lines are extracted in a two-dimensional space sense through vectorization and other methods, then three-dimensional space conversion is carried out on the extracted target points and line files through 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 the converted data are used for participating in three-dimensional geological modeling. Such a method has the following problems: (1) the collected profile is required to be vector data, and the actual situation is that most of the collected data is in a picture format, so vectorization work is required; (2) when the number of profile diagrams related to three-dimensional geological modeling is large and geological elements are complex, the problems of large workload, low efficiency, poor precision and the like exist; (3) the efficiency and accuracy of three-dimensional geological modeling are affected by information loss caused by the fact that all geological elements contained in the profile cannot be extracted and used.
Disclosure of Invention
The invention aims to provide a geological profile three-dimensional space information extraction method, a geological profile three-dimensional space information extraction device 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 geological information borne by the profile, provide accurate data support for three-dimensional geological modeling and improve modeling efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a geological profile three-dimensional space information extraction method comprises the following steps:
step S1, acquiring a geological profile;
step S2, cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
step S3, calculating the coordinates of the corner points of the cut image according to the coordinate information of the geological profile;
step S4, calibrating the clipped image at a three-dimensional space position according to the corner point coordinates of the clipped image, and establishing a three-dimensional geological profile;
and step 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 profile is divided into whole-image cutting and subarea cutting of the target area according to whether the section line trends are consistent or not; when the section lines in the target area are consistent in trend, the target area is used as an integral image block to be cut in a whole image cutting mode; and when the section lines of the target area are not consistent, dividing the cutting area according to the inflection points of different directions of the section lines, and performing sectional cutting.
Preferably, the clipped image is named according to the spatial position relation rule.
Preferably, the standard data format comprises 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 a geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the cutting module is used for cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
the computing module is used for computing the corner point coordinates of the cut image according to the coordinate information;
the establishing module is used for calibrating the cut image at a three-dimensional space position according to the corner point coordinates of the cut image and establishing a three-dimensional geological profile;
and the extraction module is used for extracting geological information from the three-dimensional geological profile.
Preferably, the geological profile comprises: section line trend and coordinate information.
Preferably, the clipped image is named according to the spatial position relation rule.
Preferably, the standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
The present invention also provides a storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement a method of extracting three-dimensional spatial information from a geological profile.
The method comprises the steps of cutting a target area on a geological profile; calculating the coordinates of the corner points 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 point coordinates of the cut image, and establishing a three-dimensional geological profile; and extracting geological information from the three-dimensional geological profile. By adopting the technical scheme of the invention, the three-dimensional space position recovery of the two-dimensional geological map can be quickly and accurately realized, the full element extraction of geological information borne by the profile map can be realized, accurate data support is provided for three-dimensional geological modeling, and the modeling efficiency is improved.
Drawings
FIG. 1 is a flow chart of a geological profile three-dimensional spatial information extraction method of the invention;
FIG. 2 is a schematic diagram of image cropping and corner coordinate calculation according to the present invention;
FIG. 3 is a three-dimensional geological profile after the image spatial location calibration established by the method of the present invention;
FIG. 4 is a three-dimensional spatial map of geological information extracted using the method of the present invention;
FIG. 5 is a three-dimensional geological model created using the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
as shown in fig. 1, the present invention provides a geological profile three-dimensional spatial information extraction method, which comprises the following steps:
step S1, acquiring a geological profile; wherein the geological profile comprises: section line trend and coordinate information;
step S2, cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
step S3, calculating the coordinates of the corner points of the cut image according to the coordinate information;
step S4, calibrating the clipped image at a three-dimensional space position according to the corner point coordinates of the clipped image, and establishing a three-dimensional geological profile;
and step S5, extracting geological information from the three-dimensional geological profile.
As an implementation manner of this embodiment, in step S2, the target area on the geological section is cut into whole target area cutting and partition (segmented) cutting 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 used as a whole image block to be cut; when the section lines of the target area are not consistent, dividing the cutting area according to the inflection points of different directions of the section lines, and performing sectional (segmented) cutting; the image is cut in a rectangular frame shape; when cutting, the accuracy of the cutting frame needs to be ensured, and the spatial error caused by inaccurate cutting is avoided.
In step S2, as an embodiment of this embodiment, the clipped image is named according to the spatial relationship rule. The image name contains at least 3 key fields when named: AREA _ Section _ Image, where AREA represents the name or number of an AREA or a mining AREA, Section represents a Section line name or number, and Image represents an Image sequence number that is sequentially numbered from left to right when partition (segmentation) cropping is employed.
As an implementation manner of this embodiment, in step S2, the clipped image data format is converted into a standard data format recognizable by SKUA-godad software, where the standard data format includes BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, and XPM.
As an implementation manner of this embodiment, in step S3, the calculating the corner coordinates of the cropped image specifically includes: the 4 corner points of the cropped image are defined as: left lower (X), left upper (V), right upper (W), right lower (U); and the coordinate format of each angular point is (x, y, z), wherein x and y are horizontal position coordinates of the angular point, and z is a position coordinate of the angular point on a vertical depth domain. The calculated corner point coordinates are arranged into an electronic form for use in other adjacent image space calibration with common points or common edges, so that the increase of workload due to repeated calculation is avoided, and the method can be used for quality control and precision verification. As shown in fig. 2, the calculation of the coordinates of the image corner points is further explained: knowing the coordinate information of the drilled hole on the section, cutting the image in a rectangular frame shape (shown by a dotted line frame), and respectively calculating the coordinates of 4 corner points (X, U, V, W) of the cut image according to spatial position analysis: the X point coordinate is (X) 0 ，Y 0 ，Z 0 -h o ) The coordinate of the U point is (X) 0 ，Y 0 ，Z 1 ) The coordinate of the V point is (X) 2 ，Y 2 ，Z 0 -h o ) W point coordinate is (X) 2 ，Y 2 ，Z 1 ). It should be noted that the calculation of the coordinates of the corner points should be performed according to the target area and the specific situation.
As an implementation manner of this embodiment, the step S4 is implemented by SKUA-cad software, and the specific steps include:
(1) loading all the cut images into software through 'Import images-As 2D Voxet';
(2) defining the coordinates of 4 angular points of the loaded image through 'Voxet-Tools-Resize Voxet With Point';
(3) and completing the image space position calibration, and establishing a three-dimensional geological profile as shown in figure 3.
As an implementation manner of this embodiment, in step S5, on the established three-dimensional geological profile, based on the SKUA-GOCAD software, the point-line correlation function module extracts the formation boundary line, lithology, fault target ground particles, line, geometric form and attribute as required, and establishes a point-line three-dimensional model with real three-dimensional space coordinate information, as shown in fig. 4; and (3) establishing a three-dimensional geological model by adopting a deterministic modeling or random modeling method in combination with other geological data and geological knowledge, as shown in figure 5.
Example 2:
the invention provides a geological profile three-dimensional space information extraction device, comprising:
the acquisition module is used for acquiring a geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the cutting module is used for cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
the computing module is used for computing the corner point coordinates of the cut image according to the coordinate information;
the establishing module is used for calibrating the cut image at a three-dimensional space position according to the corner point coordinates of the cut image and establishing a three-dimensional geological profile;
and the extraction module is used for extracting geological information from the three-dimensional geological profile.
Example 3:
the present invention also provides a storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement a method of extracting three-dimensional spatial information from a geological profile.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A geological profile three-dimensional space information extraction method is characterized by comprising the following steps:
step S1, acquiring a geological profile;
step S2, cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
step S3, calculating the coordinates of the corner points of the cut image according to the coordinate information of the geological profile;
step S4, calibrating the clipped image at a three-dimensional space position according to the corner point coordinates of the clipped image, and establishing a three-dimensional geological profile;
and step S5, extracting geological information from the three-dimensional geological profile.
2. The method of extracting three-dimensional spatial information from a geological profile as defined in claim 1, wherein said geological profile comprises: section line trend and coordinate information.
3. The method for extracting three-dimensional spatial information of a geological profile as claimed in claim 2, wherein the cutting mode of the target area on the geological profile is divided into whole-image cutting and subarea cutting of the target area according to whether the section line trends are consistent; when the section lines in the target area are consistent in trend, the target area is used as an integral image block to be cut in a whole image cutting mode; and when the section lines of the target area are not consistent, dividing the cutting area according to the inflection points of different directions of the section lines, and performing sectional cutting.
4. The method of extracting three-dimensional spatial information of a geological profile as defined in claim 3, wherein the cropped images are named according to the spatial position relationship rule.
5. The method of claim 4, wherein the standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
6. A geological profile three-dimensional spatial information extraction device is characterized by comprising:
the acquisition module is used for acquiring a geological profile; wherein the geological profile comprises: section line trend and coordinate information;
the cutting module is used for cutting a target area on the geological profile, naming the cut image according to rules, and converting the data format of the cut image into a standard data format;
the computing module is used for computing the corner point coordinates of the cut image according to the coordinate information;
the establishing module is used for calibrating the cut image at a three-dimensional space position according to the corner point coordinates of the cut image and establishing a three-dimensional geological profile;
and the extraction module is used for extracting geological information from the three-dimensional geological profile.
7. The apparatus for extracting three-dimensional spatial information of a geological profile as defined in claim 6, wherein said geological profile comprises: section line trend and coordinate information.
8. The apparatus for extracting three-dimensional spatial information of geological profile as claimed in claim 7, wherein the cropped images are named according to the spatial position relationship rule.
9. The apparatus of claim 8, wherein the standard data format comprises BMP, JPEG, PBM, PGM, PNG, PPM, TIFF, XBM, XPM.
10. A storage medium storing machine executable instructions which, when invoked and executed by a processor, cause the processor to carry out a geological profile three-dimensional spatial information extraction method as claimed in claims 1 to 5.
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| CN116503562A (en) * | 2023-05-15 | 2023-07-28 | 贝壳找房(北京)科技有限公司 | Method for determining space building information model and fusing three-dimensional space model images |
| CN118133592A (en) * | 2024-05-10 | 2024-06-04 | 贵州省水利水电勘测设计研究院有限公司 | Three-dimensional expression and data storage method for special trend line trace |
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