CN115641405A - Three-dimensional modeling method and system - Google Patents
Three-dimensional modeling method and system Download PDFInfo
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- CN115641405A CN115641405A CN202211314825.1A CN202211314825A CN115641405A CN 115641405 A CN115641405 A CN 115641405A CN 202211314825 A CN202211314825 A CN 202211314825A CN 115641405 A CN115641405 A CN 115641405A
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Abstract
The invention discloses a three-dimensional modeling method and a system, wherein the method comprises a preliminary discrete model construction method and a discrete value supplementing method, wherein the discrete value supplementing method comprises the steps of confirming a discrete value area of a preliminary discrete model, carrying out plane section view on the discrete value area and acquiring discrete values at the plane section view, and mainly aims at a relatively complex preliminary discrete model.
Description
Technical Field
The invention relates to the technical field of three-dimensional modeling, in particular to a three-dimensional modeling method and a three-dimensional modeling system.
Background
Three-dimensional scanning technology is nowadays a contactless modeling work. The most outstanding advantage is that the appearance can be obtained without damaging the original appearance of the object due to contact, which is of great significance to many precious cultural relics and fragile objects. And many objects have very large original volumes, and the digital modeling of the computer can be realized only by means of a three-dimensional scanner. The principle of a three-dimensional scanner is very simple: taking some points on the surface of the scanned object, calculating the distance between these points and the scanner, when the measured points are enough, the contour of the scanned object can be obtained, and the relationship between the adjacent points is established, i.e. the three-dimensional model. In the field of three-dimensional modeling, full-angle photographs of objects are required for either internal viewpoint-based pseudo three-dimensional presentation of objects or image modeling-based true three-dimensional data synthesis.
When a certain physical commodity needs to be modeled by a three-dimensional object, the current general method is to scan the surface of the object, record coordinate point information, connect corresponding coordinate points to form a plane according to the coordinate point information, splice a plurality of plane graphs to form a three-dimensional object outline after repeated calculation, and construct a model with three-dimensional data through a virtual three-dimensional space by three-dimensional manufacturing software. The general situation can be divided into: the three-dimensional modeling image acquisition refers to a process of acquiring images of three-dimensional objects to be tested by utilizing a series of lighting equipment, projection equipment, image acquisition devices and the like, and simultaneously performing three-dimensional model construction on acquired information and images by utilizing a computer, wherein in the image acquisition process, details such as object tracks, shapes and the like are captured by utilizing a plurality of industrial cameras, and relevant data are analyzed, so that the accuracy of the three-dimensional modeling of the computer is improved.
The existing three-dimensional modeling method depends on a mode of recording coordinate points, the computed three-dimensional object outline is easy to have a defect part, when modeling is carried out, a three-dimensional modeling model is easy to have a defect, even for a hollow part and a concave part of an object to be modeled, accurate coordinate recording cannot be carried out, subsequent repair needs to be carried out manually, errors in the modeling process are large, accuracy is low, on the basis that the whole process is complex, targeted process rotation cannot be carried out according to the complexity of the object to be modeled, the difference between the formed three-dimensional modeling and the original object to be modeled is large, for some detail parts, accurate embodiment cannot be carried out, the finished product of the three-dimensional modeling cannot be used seriously, modeling needs to be carried out again, the working efficiency is seriously influenced, and working resources are wasted.
Disclosure of Invention
The invention aims to provide a three-dimensional modeling method and a three-dimensional modeling system, and solves the problems that the existing three-dimensional modeling method proposed in the background technology is dependent on a coordinate point recording mode, the calculated three-dimensional object outline is easy to have a defective part, a three-dimensional modeling model is easy to have a defect when modeling is carried out, even for a hollow part and a dent part of an object to be modeled, accurate coordinate recording cannot be carried out, subsequent repair needs to be carried out manually, the error of the modeling process is large, the accuracy is low, on the basis of complex whole process, targeted process rotation cannot be carried out according to the complexity of the object to be modeled, the difference between the molded three-dimensional modeling and the original object to be modeled is large, and for some detail parts, accurate embodiment cannot be carried out, the three-dimensional modeling finished product cannot be used seriously, modeling needs to be carried out again, the working efficiency is seriously influenced, and the working resources are wasted.
In order to achieve the purpose, the invention provides the following technical scheme: a three-dimensional modeling method and system includes the operation steps:
s1, placing an object to be modeled on a three-dimensional scanning platform;
s2, placing a plurality of distance measurement identification points on the outer wall of the surface layer of the modeling object;
s3, collecting three-dimensional coordinate positions of a plurality of ranging identification points;
s4, recording the plurality of ranging identification points into a three-dimensional coordinate system;
s5, presenting the approximate outline of the object to be modeled in the three-dimensional coordinate system;
s6, introducing each plane data of the object to be modeled into the three-dimensional coordinate system, and supplementing the data of the object to be modeled;
s7, constructing a reservoir parameterization distribution model of the object to be modeled;
s8, importing the reservoir parameterization distribution model into three-dimensional software;
and S9, performing visual rendering on the reservoir parameterization distribution model through three-dimensional software.
Further, the preliminary discrete model building method comprises the steps of placing an object to be modeled on a three-dimensional scanning platform, placing a plurality of ranging identification points on the outer wall of the surface layer of the object to be modeled, collecting three-dimensional coordinate positions of the ranging identification points, recording the ranging identification points into a three-dimensional coordinate system, presenting the approximate outline of the object to be modeled in the three-dimensional coordinate system, introducing each plane data of the object to be modeled in the three-dimensional coordinate system, and supplementing the data of the object to be modeled.
Further, the building process of the model of the object to be built comprises building a preliminary discrete model, supplementing discrete values of the defects and building a reservoir parameterization distribution model.
Further, the method for supplementing the discrete numerical values of the deformities comprises the steps of confirming the deformity area of the initial discrete model, carrying out plane section view on the deformity area and acquiring the discrete numerical values at the plane section view.
Further, the discrete values of the deformities comprise a deformity portion of the preliminary discrete model and a modeled internal hollow region portion.
Further, the incomplete part of the preliminary discrete model comprises a missing part of the distance measurement identification point and a surface layer sunken part to be modeled.
Compared with the prior art, the invention has the beneficial effects that: the three-dimensional modeling method and the system are as follows:
1. the three-dimensional modeling method and the system are characterized in that an object to be modeled is placed on a three-dimensional scanning platform, a plurality of distance measurement identification points are placed on the outer wall of the surface layer of the object to be modeled, the distance measurement identification points are uniformly distributed on the surface layer of the object to be modeled by adopting the arrangement of sensing signals, the distribution rules of the distance measurement identification points can achieve uniform distribution in each area by uniform fixed-point and fixed-distance arrangement, and supplement on characteristic positions, such as slopes and sinks, is carried out according to the characteristic shape of the object to be modeled, so that three-dimensional modeling image acquisition is carried out on a three-dimensional object to be modeled through lighting equipment, projection equipment, an image acquisition device and the like, the three-dimensional coordinate positions of the plurality of distance measurement identification points are acquired, the plurality of distance measurement identification points are recorded into a three-dimensional coordinate system, a computer is convenient to carry out relatively accurate three-dimensional model construction on the acquired information and images, and the approximate outline of the object to be modeled is presented in the three-dimensional coordinate system.
2. According to the three-dimensional modeling method and system, each plane data of the object to be modeled is introduced into a three-dimensional coordinate system, the data of the object to be modeled is supplemented, a reservoir parametric distribution model of the object to be modeled is constructed, the reservoir parametric distribution model is introduced into three-dimensional software, the reservoir parametric distribution model is visually rendered through the three-dimensional software, and the model of the object to be modeled is more real on the basis of the approximate outline of the object to be modeled.
3. In the three-dimensional modeling method and the three-dimensional modeling system, the preliminary discrete model construction method comprises the steps of placing an object to be modeled on a three-dimensional scanning platform, placing a plurality of distance measurement identification points on the outer wall of the surface layer of the modeled object, collecting the three-dimensional coordinate positions of the distance measurement identification points, recording the distance measurement identification points into a three-dimensional coordinate system, presenting the approximate outline of the object to be modeled in the three-dimensional coordinate system, introducing each plane data of the object to be modeled in the three-dimensional coordinate system, supplementing the data of the object to be modeled, selectively and pertinently selecting the operation flow of the three-dimensional modeling method and the operation flow of the system according to the complexity of the object to be modeled, better saving the whole operation flow of the three-dimensional modeling, and saving the loss of resources.
4. The invention relates to a three-dimensional modeling method and a three-dimensional modeling system, which are characterized in that each plane data of an object to be modeled is introduced into a three-dimensional coordinate system, the data of the object to be modeled is supplemented, and a reservoir parametric distribution model of the object to be modeled is constructed.
5. The invention relates to a three-dimensional modeling method and a three-dimensional modeling system, which are characterized in that each plane data of an object to be modeled is introduced into a three-dimensional coordinate system, the data of the object to be modeled is supplemented, a reservoir parameterized distribution model of the object to be modeled is constructed, a preliminary discrete model construction method comprises the steps of supplementing the discrete numerical value of the deficiency, confirming the deficiency area of the preliminary discrete model, carrying out plane section and collecting the discrete numerical value of the plane section.
Drawings
FIG. 1 is a schematic diagram of an operation flow structure of a three-dimensional modeling method and system according to the present invention;
FIG. 2 is a schematic flow chart of a preliminary discrete model construction method of the three-dimensional modeling method and system of the present invention;
FIG. 3 is a schematic diagram of a model building process of a model to be modeled according to the three-dimensional modeling method and system of the present invention;
FIG. 4 is a schematic structural diagram of a incomplete discrete numerical method for supplementing a three-dimensional modeling method and system according to the present invention;
FIG. 5 is a schematic diagram of a discrete numerical structure of the deformities of the present invention;
FIG. 6 is a schematic diagram of a structure of a defect portion of a preliminary discrete model according to the present invention.
Detailed Description
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, the present invention provides a technical solution: a three-dimensional modeling method and system includes the operation steps of placing an object to be modeled on a three-dimensional scanning platform, placing a plurality of distance measurement identification points on the outer wall of the surface layer of the object to be modeled, collecting the three-dimensional coordinate positions of the distance measurement identification points, recording the distance measurement identification points into a three-dimensional coordinate system, presenting the rough outline of the object to be modeled in the three-dimensional coordinate system, introducing each plane data of the object to be modeled in the three-dimensional coordinate system, supplementing the data of the object to be modeled, constructing a reservoir parametric distribution model of the object to be modeled, introducing the reservoir parametric distribution model into three-dimensional software, performing visual rendering on the reservoir parametric distribution model through the three-dimensional software, primarily constructing a discrete model including placing the object to be modeled on the three-dimensional scanning platform, placing the distance measurement identification points on the outer wall of the surface layer of the object to be modeled, collecting the three-dimensional coordinate positions of the distance measurement identification points, recording the distance measurement identification points into the three-dimensional coordinate system, presenting the rough outline of the object to be modeled in the three-dimensional coordinate system, and introducing each plane data of the object to be modeled in the three-dimensional coordinate system, supplementing data of an object to be modeled, wherein a building process of the object model to be modeled comprises building a primary discrete model, supplementing discrete numerical values of deformities and building a reservoir parametric distribution model, a method for supplementing the discrete numerical values of the deformities comprises confirming a deformity area of the primary discrete model, carrying out plane section view on the deformity area and collecting discrete numerical values at the plane section view, the discrete numerical values of the deformities comprise a deformity part of the primary discrete model and a hollow area part inside the modeling, the deformity part of the primary discrete model comprises a vacancy part of a ranging identification point and a surface layer depression part of the object to be modeled, the three-dimensional modeling method and the system are characterized in that the object to be modeled is placed on a three-dimensional scanning platform, a plurality of ranging identification points are placed on the outer wall of the surface layer of the object to be modeled, the method and the system adopt the arrangement of sensing signals to evenly distribute the ranging identification points on the surface layer of the object to be modeled, the distribution rule of the ranging identification points can firstly achieve the even distribution in each area through the arrangement of even fixed points and fixed distances, supplement on characteristic positions such as a slope and a sink according to the characteristic shape of the object to be modeled so as to facilitate the acquisition of three-dimensional modeling images through lighting equipment, projection equipment, image acquisition devices and the like to acquire the three-dimensional coordinate positions of a plurality of ranging identification points, record the plurality of ranging identification points into a three-dimensional coordinate system, facilitate the computer to carry out relatively accurate three-dimensional model construction on the acquired information and images, present the approximate outline of the object to be modeled in the three-dimensional coordinate system, and introduce each plane data of the object to be modeled in the three-dimensional coordinate system, supplementing data of an object to be modeled, constructing a reservoir parametric distribution model of the object to be modeled, introducing the reservoir parametric distribution model into three-dimensional software, performing visual rendering on the reservoir parametric distribution model through the three-dimensional software, enabling the model of the object to be modeled to be more real on the basis of the approximate contour of the object to be modeled, in the three-dimensional modeling method and the system, the preliminary discrete model constructing method comprises the steps of placing the object to be modeled on a three-dimensional scanning platform, placing a plurality of ranging identification points on the outer wall of the surface layer of the object to be modeled, collecting three-dimensional coordinate positions of the ranging identification points, recording the ranging identification points into a three-dimensional coordinate system, presenting the approximate contour of the object to be modeled in the three-dimensional coordinate system and introducing plane data of the object to be modeled in the three-dimensional coordinate system, supplementing the data of the object to be modeled, wherein the data of the object to be modeled can be modeled according to the complexity of the object to be modeled, in the three-dimensional modeling method and the three-dimensional modeling system, the preliminary discrete model construction method comprises the steps of establishing and constructing a preliminary discrete model, supplementing the discrete numerical values of the defects and constructing a reservoir parametric distribution model, and is mainly divided into three parts, wherein the preliminary discrete model is established and constructed in the first stage, the rough outline is constructed, and then the rough outline can be supplemented through the supplementing discrete numerical values of the defects in the second stage, so that the model to be constructed is more fully constructed, the whole three-dimensional modeling method is more convenient and simpler to operate, the three-dimensional modeling method and the system can adapt to the three-dimensional construction of various objects to be modeled, the method for constructing the preliminary discrete model comprises the steps of confirming a incomplete area of the preliminary discrete model, carrying out plane section analysis on the incomplete area and acquiring discrete values at the plane section analysis, mainly aiming at the complex preliminary discrete model, supplementing the discrete values of related preliminary discrete models by confirming the incomplete area of the preliminary discrete model on the basis of carrying out the preliminary model, so that the preliminary discrete model is more completely formed, and separating the incomplete area by adopting a plane section analysis mode at the position of the model which is partially incapable of being supplemented, wherein the incomplete part of the preliminary discrete model comprises a lacking part of a distance measurement identification point and a surface layer concave part of a model to be built, a hollow part in a special object to be modeled or positions which can not be identified by other distance measurement identification points, cutting and section are carried out, and from the plane direction, and acquiring discrete numerical values of the plane section, supplementing the acquired discrete numerical values of the plane section to the content of the initial discrete model, and fully supplementing and perfecting the initial discrete model in the initial state.
To sum up, the three-dimensional modeling method and the system, when in use, firstly, the object to be modeled is placed on a three-dimensional scanning platform to ensure the stability of the horizontal position of the object to be modeled, then a plurality of distance measurement identification points are placed at the outer wall of the surface layer of the modeled object, then the arrangement of sensing signals is adopted to evenly distribute the distance measurement identification points on the surface layer of the object to be modeled, the distribution rules of the distance measurement identification points can achieve the even distribution in each area through the even fixed-point and fixed-distance arrangement, and the compensation on the characteristic positions, such as slope and sink, is carried out according to the characteristic shape of the object to be modeled, the three-dimensional modeling image acquisition is utilized to carry out the image acquisition on the three-dimensional object to be tested through lighting equipment, projection equipment, image acquisition devices and the like, the three-dimensional coordinate positions of a plurality of the distance measurement identification points are acquired, then a plurality of distance measurement identification discrete point values are recorded into a three-dimensional coordinate system, connecting corresponding coordinate points to form a plane according to coordinate point discrete numerical value information, splicing a plurality of plane graphs to form a three-dimensional object contour after repeated calculation, constructing a model with three-dimensional data through a virtual three-dimensional space through three-dimensional manufacturing software, enabling a plurality of discrete numerical values of ranging identification points to present the approximate contour of an object to be modeled in a three-dimensional coordinate system, introducing each plane data of the object to be modeled in the three-dimensional coordinate system, supplementing the discrete numerical values of related primary discrete models by confirming the incomplete area of the primary discrete models on the basis of performing a primary model, enabling the primary discrete models to be more completely molded, and separating the incomplete area by adopting a plane section mode for a part of models which can not be supplemented, wherein the incomplete part of the primary discrete models comprises the lack part of the ranging identification points and the surface layer concave part of the object to be modeled, and cutting and profiling a hollow part in the special object to be modeled or a position where other multiple ranging identification points cannot be identified, acquiring discrete values at the plane profiling position from the direction of a plane, supplementing the acquired discrete values at the plane profiling position to the content of the initial discrete model, fully supplementing and perfecting the initial discrete model in an initial state, supplementing data of the object to be modeled, constructing a reservoir parameterized distribution model of the object to be modeled, introducing the reservoir parameterized distribution model into three-dimensional software, visually rendering the reservoir parameterized distribution model through the three-dimensional software, enabling the model of the object to be modeled to be more real on the basis of the approximate contour of the object to be modeled, enabling a user to visually obtain the three-dimensional modeling model of the object to be modeled, and then carrying out relative operation according to requirements.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. A three-dimensional modeling method and a system thereof are characterized by comprising the following operation steps:
s1, placing an object to be modeled on a three-dimensional scanning platform;
s2, placing a plurality of distance measurement identification points on the outer wall of the surface layer of the modeling object;
s3, collecting three-dimensional coordinate positions of a plurality of ranging identification points;
s4, recording the plurality of ranging identification points into a three-dimensional coordinate system;
s5, presenting the approximate outline of the object to be modeled in the three-dimensional coordinate system;
s6, introducing each plane data of the object to be modeled into the three-dimensional coordinate system, and supplementing the data of the object to be modeled;
s7, constructing a reservoir parameterization distribution model of the object to be modeled;
s8, importing the reservoir parameterization distribution model into three-dimensional software;
and S9, performing visual rendering on the reservoir parameterization distribution model through three-dimensional software.
2. The three-dimensional modeling method and system according to claim 1, wherein: the preliminary discrete model construction method comprises the steps of placing an object to be modeled on a three-dimensional scanning platform, placing a plurality of distance measurement identification points on the outer wall of the surface layer of the modeled object, collecting three-dimensional coordinate positions of the distance measurement identification points, recording the distance measurement identification points into a three-dimensional coordinate system, presenting the approximate outline of the object to be modeled in the three-dimensional coordinate system, introducing each plane data of the object to be modeled in the three-dimensional coordinate system, and supplementing the data of the object to be modeled.
3. The three-dimensional modeling method and system according to claim 1, wherein: the building process of the object model to be modeled comprises building a preliminary discrete model, supplementing discrete values of the defects and building a reservoir parametric distribution model.
4. The three-dimensional modeling method and system of claim 2, wherein: the method for supplementing the discrete numerical values of the deformities comprises the steps of confirming the deformity area of the initial discrete model, carrying out plane section view on the deformity area and collecting the discrete numerical values at the plane section view.
5. The three-dimensional modeling method and system according to claim 1, wherein: the incomplete discrete value comprises a incomplete part of a preliminary discrete model and a modeling inner hollow area part.
6. The three-dimensional modeling method and system of claim 5, wherein: and the incomplete part of the preliminary discrete model comprises a missing part of the ranging identification point and a surface layer sunken part to be modeled.
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| CN117292079A (en) * | 2023-11-27 | 2023-12-26 | 浙江城市数字技术有限公司 | Multi-dimensional scene coordinate point position conversion and mapping method applied to digital twin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117292079A (en) * | 2023-11-27 | 2023-12-26 | 浙江城市数字技术有限公司 | Multi-dimensional scene coordinate point position conversion and mapping method applied to digital twin |
| CN117292079B (en) * | 2023-11-27 | 2024-03-05 | 浙江城市数字技术有限公司 | Multi-dimensional scene coordinate point position conversion and mapping method applied to digital twin |
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