CN110874861B - Three-dimensional digital image acquisition method and device - Google Patents
Three-dimensional digital image acquisition method and device Download PDFInfo
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Abstract
The invention discloses a three-dimensional digital image acquisition method and equipment, which specifically comprise the following steps: the invention relates to the technical field of image acquisition, in particular to preparation in the early stage of S1, acquisition of images, rotation scanning of articles, processing of S3 and image algorithms, three-dimensional reconstruction of images, transmission and reference of S6 and data. The three-dimensional digital image acquisition method and the three-dimensional digital image acquisition equipment can realize virtual reconstruction of cultural relics, well achieve the purpose of completing three-dimensional acquisition of images and carrying out three-dimensional reconstruction of the cultural relics with partial damage and incomplete, realize acquisition and creation of the three-dimensional images of the cultural relics with partial incomplete or texture being partially damaged, greatly enrich the application functions of the three-dimensional image acquisition technology, greatly facilitate use of cultural relics research and protection workers, and simultaneously realize low-light compensation during cultural relic scanning three-dimensional image acquisition.
Description
Technical Field
The invention relates to the technical field of image acquisition, in particular to a three-dimensional digital image acquisition method and equipment.
Background
The data acquisition refers to automatically acquiring non-electric quantity or electric quantity signals from analog and digital measured units such as sensors and other measured devices, sending the signals to an upper computer for analysis and processing, the three-dimensional data acquisition refers to utilizing a series of sensors or measuring devices to acquire data of a three-dimensional object to be measured, along with the development of aviation, aerospace technology and computer digital image processing technology, the cost of photogrammetry equipment is greatly reduced, digital photogrammetry has become a main measure of large-scale and large-area measurement, and can provide rich geographic space information data after relevant data processing, so that the technology is widely applied to various industries of national economy, plays an important role in the construction and development of national economy, and establishes a three-dimensional navigation system as an important link of enterprise informatization, the workshop three-dimensional model data measurement acquisition and production are a part of the construction process of the whole three-dimensional navigation system, are the basis of the research and development operation of the three-dimensional navigation system, aim at the problems of enterprises in the three-dimensional modeling process, acquire image data of production vehicles through a three-dimensional data acquisition technology, carry out model production research based on acquired size data, establish a true three-dimensional model, further construct a three-dimensional database, can integrate with other data on a frame platform of the three-dimensional navigation system, provide basic data for the design, production processing and fine management of factory products, and are widely applied to the image acquisition and identification of archaeological relics based on the three-dimensional digital image acquisition technology which is developed by the three-dimensional data acquisition technology.
At present, when image acquisition is carried out on cultural relics, the image scanning acquisition equipment is used for directly carrying out physical scanning and constructing three-dimensional images, however, the three-dimensional image acquisition can only be used for completing image acquisition, virtual reconstruction of the cultural relics cannot be realized for some cultural relics with partial defects or textures being partially destroyed, the purposes of completing the three-dimensional image acquisition and carrying out three-dimensional reconstruction on the cultural relics with partial defects and defects cannot be achieved, the application functions of the three-dimensional image acquisition technology cannot be enriched, and inconvenience is brought to use of cultural relics research and protection workers.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a three-dimensional digital image acquisition method and equipment, which solve the problems that the existing three-dimensional image acquisition can only be used for completing image acquisition, but virtual reconstruction of cultural relics cannot be realized for some cultural relics with partial defects or partially damaged textures, the purpose of completing three-dimensional image acquisition and three-dimensional reconstruction of cultural relics with partial defects and defects cannot be achieved, and the application functions of the three-dimensional image acquisition technology cannot be enriched.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the three-dimensional digital image acquisition method specifically comprises the following steps:
s1, firstly logging in through a user operation execution module in a user interaction terminal, then placing a cultural relic to be scanned and acquired in an objective table, then starting a rotating mechanism in the objective table to enable the cultural relic to rotate, then acquiring images of the cultural relic on the objective table by an image data acquisition unit, and controlling a shooting time timing module to perform timing processing by a central processing module during each acquisition;
s2, performing image acquisition on the cultural relics through a camera shooting module, performing coding processing on the acquired image data through an image data coding module, performing sorting processing according to the coded data through an image data sorting module, performing sorting through an image data sorting module, and transmitting the sorted image data to a central processing module for processing;
s3, simultaneously, the central processing module controls the virtual coordinate system creation module in the scanning image processing unit to create a virtual three-dimensional coordinate system by taking the objective table as a coordinate origin, then coordinate data of the calibrated camera is input into the system through the shooting point coordinate input module, then the coordinates of all characteristic points of the object above the objective table are scanned and extracted through the object coordinate extraction module, when the scanning speed is required to be adjusted, the rotation speed of a rotating mechanism in the objective table is controlled through the scanning speed adjustment module, and when the light supplementing process is required to be carried out, the light supplementing lamp is controlled through the scanning light supplementing module to carry out the light supplementing process;
s4, the central processing module controls the image recognition module in the image data recognition unit to recognize the collected image data in a one-to-one correspondence manner, then an image RGB pixel point extraction module in the data algorithm processing unit extracts RGB gray value pixel points in the image, then an image feature point extraction matching module performs matching analysis processing on each extracted feature point, then a repeated feature point matching module performs overlapping processing on the repeatedly extracted feature points, and then a relation diagram construction module constructs a cultural relic appearance image relation diagram;
s5, when analyzing the constructed cultural relic appearance image relation diagram, if surface defects or unclear textures appear, the central processing module controls a virtual feature point creation module in the image three-dimensional reconstruction unit to create virtual feature points according to the features of the defect part or the features unrecognized by the textures, then the depth value algorithm processing module carries out depth algorithm processing on the features of the entity part and the created feature points, and then the adjacent matrix calculation module uses a vector matrix algorithm to construct the features of the defect part;
and S6, finally, consulting a processing result through a display module in the user interaction terminal, or wirelessly transmitting the acquired image data and the processed data to the cloud monitoring terminal through a wireless communication module by the central processing module.
Preferably, in step S1, the user interaction terminal includes a user operation execution module, an image data acquisition unit and a display module, where output ends of the user operation execution module are connected with input ends of the image data acquisition unit and the display module, respectively.
Preferably, the image data acquisition unit in step S2 includes a camera shooting module, an image data encoding module, an image data sorting module and an image data sorting module, wherein an output end of the camera shooting module is connected with an input end of the image data encoding module, an output end of the image data encoding module is connected with an input end of the image data sorting module, and an output end of the image data sorting module is connected with an input end of the image data sorting module.
Preferably, the scanning image processing unit in step S3 includes a virtual coordinate system creating module, an object coordinate extracting module, a scanning speed adjusting module, and a scanning light supplementing module.
Preferably, the image data recognition unit in step S4 is composed of N image recognition modules.
Preferably, the data algorithm processing unit in step S4 includes an image RGB pixel point extraction module, an image feature point extraction matching module, a repeated feature point matching module, and a relationship diagram construction module.
Preferably, the image three-dimensional reconstruction unit in step S5 includes a virtual feature point creation module, a depth value algorithm processing module, and a vector matrix calculation module.
The invention also discloses three-dimensional digital image acquisition equipment, which comprises a bottom plate and an acquisition box fixedly arranged on the bottom plate, wherein the bottom of the inner wall of the acquisition box is fixedly provided with an objective table through a mounting block, two sides of the inner wall of the acquisition box are fixedly provided with folding rods, one end of each folding rod, which is far away from the acquisition box, is fixedly provided with an image acquisition unit, and the top of the inner wall of the acquisition box is fixedly provided with a scanning light supplementing module.
(III) beneficial effects
The invention provides a three-dimensional digital image acquisition method and equipment. Compared with the prior art, the method has the following beneficial effects:
(1) The three-dimensional digital image acquisition method and the three-dimensional digital image acquisition equipment specifically comprise the following steps: s1, firstly logging in through a user operation execution module in a user interaction terminal, then placing a cultural relic to be scanned and acquired by an image on an objective table, then starting a rotating mechanism in the objective table to enable the cultural relic to rotate, then enabling an image data acquisition unit to acquire the image of the cultural relic on the objective table, controlling a shooting time timing module to perform timing processing during each acquisition, S2, performing image acquisition on the cultural relic through a camera shooting module, then performing coding processing on acquired image data through an image data coding module, performing sorting processing according to the coded data through an image data sorting module, then performing sorting processing through an image data sorting module, transmitting the sorted image data into a central processing module, performing processing, S3, simultaneously enabling a virtual coordinate system creation module in a scanning image processing unit to take the objective table as a coordinate origin to create a virtual three-dimensional coordinate system, inputting coordinate data of a calibrated camera into a system through a shooting point coordinate input module, then performing scanning extraction on feature point coordinates of the cultural relic on the objective table through an object coordinate extraction module, S4, controlling an image recognition module to perform image recognition processing on the acquired image data in an image data recognition unit to perform sorting processing according to the coded data, performing image recognition processing on the image recognition module to form an image point-image recognition algorithm, and then performing feature point matching image feature point matching processing, and repeatedly performing feature point matching processing on the image feature point image extraction module in the image recognition module, s5, when analyzing the constructed cultural relic appearance image relation diagram, if surface defects or textures are unclear, the central processing module controls the virtual feature point creation module in the image three-dimensional reconstruction unit to create virtual feature points according to the features of the defect parts or the unidentified features of the textures, and S6, finally, the processing result is consulted through the display module in the user interaction terminal, or the central processing module wirelessly transmits the acquired image data and the processed data to the cloud monitoring terminal through the wireless communication module, so that the virtual reconstruction of the cultural relic can be realized, the purposes of completing the three-dimensional acquisition of the image and carrying out the three-dimensional reconstruction on the cultural relics with partial damage and incomplete are well achieved, the three-dimensional image acquisition and creation can be carried out on the cultural relics with partial incomplete parts or partially damaged textures, the application functions of the three-dimensional image acquisition technology are greatly enriched, and the use of cultural relics research and protection workers is greatly facilitated.
(2) The three-dimensional digital image acquisition method and the device comprise a bottom plate and an acquisition box fixedly installed on the bottom plate, wherein an objective table is fixedly installed at the bottom of the inner wall of the acquisition box through an installation block, folding rods are fixedly installed at two sides of the inner wall of the acquisition box, an image acquisition unit is fixedly installed at one end of each folding rod far away from the acquisition box, and a scanning light supplementing module is fixedly installed at the top of the inner wall of the acquisition box, so that low-light compensation can be realized when a cultural relic scans a three-dimensional image for acquisition, the acquired three-dimensional image is clearer, the condition that the acquired image is unclear due to weaker light is avoided, and the image acquisition definition of the cultural relic is ensured.
Drawings
FIG. 1 is a schematic block diagram of a system of the present invention;
FIG. 2 is a schematic block diagram of an image data acquisition unit according to the present invention;
FIG. 3 is a schematic block diagram of a scanned image processing unit in accordance with the present invention;
FIG. 4 is a schematic block diagram of the structure of the image three-dimensional reconstruction unit of the present invention;
fig. 5 is a schematic structural view of the collecting device of the present invention.
In the figure, a bottom plate 1, a collecting box 2, an objective table 3 and a folding rod 4 are arranged.
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.
Referring to fig. 1-5, the embodiment of the present invention provides a technical solution: the three-dimensional digital image acquisition method specifically comprises the following steps:
s1, firstly logging in through a user operation execution module in a user interaction terminal, then placing a cultural relic to be scanned and acquired in an object stage, then starting a rotating mechanism in the object stage to enable the cultural relic to rotate, then acquiring images of the cultural relic on the object stage by an image data acquisition unit, and controlling a shooting time timing module to perform timing processing by a central processing module during each acquisition, wherein the user interaction terminal comprises the user operation execution module, the image data acquisition unit and a display module, and the output end of the user operation execution module is respectively connected with the input ends of the image data acquisition unit and the display module;
s2, performing image acquisition on the cultural relics through a camera shooting module, performing coding processing on the acquired image data through an image data coding module, performing sorting processing according to the coded data through an image data sorting module, sorting the sorted image data through an image data sorting module, and transmitting the sorted image data to a central processing module for processing, wherein the image data acquisition unit comprises the camera shooting module, the image data coding module, the image data sorting module and the image data sorting module, an output end of the camera shooting module is connected with an input end of the image data coding module, an output end of the image data coding module is connected with an input end of the image data sorting module, and an output end of the image data sorting module is connected with an input end of the image data sorting module;
s3, simultaneously, a central processing module controls a virtual coordinate system creation module in a scanning image processing unit to create a virtual three-dimensional coordinate system by taking an objective table as a coordinate origin, then coordinate data of a calibrated camera is input into the system through a shooting point coordinate input module, then coordinates of all characteristic points of an object above the objective table are scanned and extracted through an object coordinate extraction module, when the scanning speed is required to be adjusted, the rotation speed of a rotating mechanism in the objective table is controlled through a scanning speed adjustment module, when light supplementing processing is required to be carried out, a light supplementing lamp is controlled through a scanning light supplementing module to carry out light supplementing processing, and the scanning image processing unit comprises the virtual coordinate system creation module, the object coordinate extraction module, the scanning speed adjustment module and the scanning light supplementing module;
s4, the central processing module controls the image recognition modules in the image data recognition unit to recognize the acquired image data in a one-to-one correspondence manner, then an image RGB pixel point extraction module in the data algorithm processing unit is used for extracting RGB gray value pixel points in the image, then an image feature point extraction matching module is used for carrying out matching analysis processing on each extracted feature point, a repeated feature point matching module is used for carrying out overlapping processing on the repeatedly extracted feature points, then a relation graph of the appearance image of the cultural relics is constructed through a relation graph construction module, the image data recognition unit consists of N image recognition modules, and the data algorithm processing unit comprises an image RGB pixel point extraction module, an image feature point extraction matching module, a repeated feature point matching module and a relation graph construction module;
s5, when analyzing the constructed cultural relic appearance image relation diagram, if surface defects or unclear textures appear, the central processing module controls a virtual feature point creation module in an image three-dimensional reconstruction unit to create virtual feature points according to the features of defective parts or the features which are not recognized by textures, then the depth value algorithm processing module processes the features of the entity parts and the created feature points in a depth algorithm mode, and then a vector matrix algorithm is used by an adjacent matrix calculation module to construct the features of the defective parts, wherein the image three-dimensional reconstruction unit comprises the virtual feature point creation module, the depth value algorithm processing module and the vector matrix calculation module;
and S6, finally, consulting a processing result through a display module in the user interaction terminal, or wirelessly transmitting the acquired image data and the processed data to the cloud monitoring terminal through a wireless communication module by the central processing module.
The invention also discloses three-dimensional digital image acquisition equipment, which comprises a bottom plate 1 and an acquisition box 2 fixedly arranged on the bottom plate 1, wherein the bottom of the inner wall of the acquisition box 2 is fixedly provided with an objective table 3 through a mounting block, two sides of the inner wall of the acquisition box 2 are fixedly provided with folding rods 4, one end of each folding rod 4, which is far away from the acquisition box 2, is fixedly provided with an image acquisition unit, and the top of the inner wall of the acquisition box 2 is fixedly provided with a scanning light supplementing module.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A three-dimensional digital image acquisition method is characterized in that: the method specifically comprises the following steps:
s1, firstly logging in through a user operation execution module in a user interaction terminal, then placing a cultural relic to be scanned and acquired in an objective table, then starting a rotating mechanism in the objective table to enable the cultural relic to rotate, then acquiring images of the cultural relic on the objective table by an image data acquisition unit, and controlling a shooting time timing module to perform timing processing by a central processing module during each acquisition;
s2, performing image acquisition on the cultural relics through a camera shooting module, performing coding processing on the acquired image data through an image data coding module, performing sorting processing according to the coded data through an image data sorting module, performing sorting through an image data sorting module, and transmitting the sorted image data to a central processing module for processing;
s3, simultaneously, the central processing module controls the virtual coordinate system creation module in the scanning image processing unit to create a virtual three-dimensional coordinate system by taking the objective table as a coordinate origin, then coordinate data of the calibrated camera is input into the system through the shooting point coordinate input module, then the coordinates of all characteristic points of the object above the objective table are scanned and extracted through the object coordinate extraction module, when the scanning speed is required to be adjusted, the rotation speed of a rotating mechanism in the objective table is controlled through the scanning speed adjustment module, and when the light supplementing process is required to be carried out, the light supplementing lamp is controlled through the scanning light supplementing module to carry out the light supplementing process;
s4, the central processing module controls the image recognition module in the image data recognition unit to recognize the collected image data in a one-to-one correspondence manner, then an image RGB pixel point extraction module in the data algorithm processing unit extracts RGB gray value pixel points in the image, then an image feature point extraction matching module performs matching analysis processing on each extracted feature point, then a repeated feature point matching module performs overlapping processing on the repeatedly extracted feature points, and then a relation diagram construction module constructs a cultural relic appearance image relation diagram;
s5, when analyzing the constructed cultural relic appearance image relation diagram, if surface defects or unclear textures appear, the central processing module controls a virtual feature point creation module in the image three-dimensional reconstruction unit to create virtual feature points according to the features of the defect part or the features unrecognized by the textures, then the depth value algorithm processing module carries out depth algorithm processing on the features of the entity part and the created feature points, and then the adjacent matrix calculation module uses a vector matrix algorithm to construct the features of the defect part;
and S6, finally, consulting a processing result through a display module in the user interaction terminal, or wirelessly transmitting the acquired image data and the processed data to the cloud monitoring terminal through a wireless communication module by the central processing module.
2. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the user interaction terminal in the step S1 comprises a user operation execution module, an image data acquisition unit and a display module, wherein the output end of the user operation execution module is connected with the input ends of the image data acquisition unit and the display module respectively.
3. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the image data acquisition unit in the step S2 comprises a camera shooting module, an image data coding module, an image data sorting module and an image data sorting module, wherein the output end of the camera shooting module is connected with the input end of the image data coding module, the output end of the image data coding module is connected with the input end of the image data sorting module, and the output end of the image data sorting module is connected with the input end of the image data sorting module.
4. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the scanning image processing unit in the step S3 comprises a virtual coordinate system creating module, an object coordinate extracting module, a scanning speed adjusting module and a scanning light supplementing module.
5. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the image data recognition unit in the step S4 is composed of N image recognition modules.
6. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the data algorithm processing unit in the step S4 comprises an image RGB pixel point extraction module, an image feature point extraction matching module, a repeated feature point matching module and a relation diagram construction module.
7. A method of three-dimensional digitized image acquisition as claimed in claim 1 wherein: the image three-dimensional reconstruction unit in the step S5 comprises a virtual feature point creation module, a depth value algorithm processing module and a vector matrix calculation module.
8. A three-dimensional digitized image acquisition apparatus for carrying out the three-dimensional digitized image acquisition method of any one of claims 1 to 7, characterized in that: including collection box (2) of fixed mounting on bottom plate (1) and bottom plate (1), the bottom of collection box (2) inner wall is through installation piece fixed mounting has objective table (3), and the equal fixed mounting in both sides of collection box (2) inner wall has folding pole (4), the one end fixed mounting that collection box (2) was kept away from to folding pole (4) has image acquisition unit, and the top fixed mounting of collection box (2) inner wall has scanning light filling module.
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| CN111597527B (en) * | 2020-07-24 | 2020-10-23 | 江苏荣泽信息科技股份有限公司 | Intelligent contract system based on redis protocol |
| CN111928930B (en) * | 2020-09-27 | 2021-01-15 | 潍坊中振智能装备有限公司 | 3D visual detection system based on structured light imaging |
| CN112288849B (en) * | 2020-10-23 | 2023-07-25 | 北京师范大学 | Virtual restoration method for rotating shaft type broken cultural relics |
| CN114697516B (en) * | 2020-12-25 | 2023-11-10 | 花瓣云科技有限公司 | Three-dimensional model reconstruction method, apparatus and storage medium |
| CN113110121B (en) * | 2021-03-08 | 2022-12-09 | 华朗三维技术（深圳）有限公司 | Industrial automation three-dimensional detection system and method |
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