The principle of a 3D model scanner. How to explain it to others simply

A 3D scanner is a scientific instrument used to detect and analyze the shape (geometry) and appearance data (e.g., color, surface albedo, etc.) of objects or environments in the real world. The collected data is often used for 3D reconstruction calculations to create digital models of actual objects in the virtual world. These models have a wide range of applications, such as industrial design, defect detection, reverse engineering, robot guidance, geomorphological surveying, medical information, bioinformatics, forensics, digital artifact collections, film production, game creation materials, and more.

3D scanners are not made by a single technology, and there are many different reconstruction techniques that have their advantages and disadvantages, as well as their costs and selling prices. At present, there is no universal reconstruction technology, and the instruments and methods are often limited by objects....

The principle of the 3D scanner is to hit the laser on the surface of the part, the CCD camera receives, and the three-dimensional point cloud is traveled, and the laser has red, blue, red and blue colors. If you need to take global photography with precision requirements, there are also global and scanner all-in-one machines on the market.

The basic principle of operation of a 3D scanner is that it uses a combination of structured light.

Composite 3D non-contact measurement technology of technology, phase measurement technology, computer vision technology. The so-called photographic measurement is similar to the camera to take pictures of the object in the field of view, the difference is that the camera captures the two-dimensional image of the object, and the developed measuring instrument obtains the three-dimensional information of the object. Unlike traditional 3D scanners, this scanner can measure one face at the same time.

When the measurement time grid projection device projects several specific coded structured light onto the object to be measured, the two cameras at a certain angle synchronously collect the corresponding image, and then decode and phase calculate the image, and use matching technology and triangle.

The measurement principle solves the three-dimensional coordinates of the pixels in the common viewport of the two cameras.

XTOM 3D Photography Scanner is a high-precision 3D optical scanner, specially developed and manufactured for industrial 3D scanning, suitable for the whole process of industrial inspection and global digital processing. The XTOM 3D photographic scanner has high-precision detail measurement performance and industrial-grade stability, and is suitable for high-precision data measurement in various harsh industrial environments.

Three-dimensional scanning is a high-tech integrating optical, mechanical, electrical and computer technology, which is mainly used to scan the spatial shape and structure size and color of the object, and can obtain the surface parameter information of the object without touching the surface of the measured object, and restore it to the computer one to one.

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The principle of 3D scanner technology is to use two groups of cameras to take pictures of the scanned object, and then process the data through computer technology to obtain the three-dimensional information of the scanned object.

The two groups of cameras on the instrument can respectively obtain the laser projected onto the scanned object, and the laser is deformed with the shape of the object, because the two groups of cameras have been accurately calibrated in advance, the linear three-dimensional information projected by the laser line can be obtained by calculation.

The instrument determines the scanner's spatial position during the scanning process based on the visual markers fixed to the surface of the object to be inspected, which are used for spatial position transformation.

Using the linear three-dimensional information obtained in the first step and the spatial relative position of the scanner in the second step, when the scanner moves, the three-dimensional information of the position through which the laser passes is continuously obtained, so as to form continuous three-dimensional data.

Features of 3D scanners

Non-contact scanning: Using the principle of photography, non-contact optical scanning is carried out to obtain three-dimensional data on the surface of the object.

Extremely fast scanning: Unique area scanning method for extremely fast speed.

High precision: Using the unique measurement technology, a very high measurement accuracy can be obtained.

High-density land sampling points: The high-performance measuring head can obtain extremely high-density point cloud data in one go.

Portable design: All components are flexible, reliable, and easy to move, and can be measured according to the actual situation in the field.

Flexible scanning method: support marker point splicing and turntable splicing. The results of multiple measurements can be synthesized by the stitching of landmark points, so as to achieve a large area scan The turret splicing can be used to flexibly rotate the body, so as to minimize the dead angle of measurement.

How to use a 3D scanner: First, place the object to be measured in the measurement space of the 3D scanner.

Then, through a computer operation program, the laser scanner scans the object, collects the points on the surface of the object, and converts these points into a three-dimensional model. Finally, the 3D model is processed by computer software, and the complete data of the object can be obtained, including size, shape, and modification materials.

The use of a 3D scanner can save a lot of time and can accurately and quickly measure the shape of an object without the need for manual measurements for a long time. In addition, 3D scanners can also be used to scan and analyze the surface details of objects and measure the exact dimensions of objects without damaging them, which is not possible with traditional measurement methods.

Features of the 3D scanner

The purpose of a 3D scanner is to create a point cloud of an object's geometric surface, which can be interpolated into the surface shape of the object, and the denser the point cloud, the more accurate the model can be created (a process called 3D reconstruction). If the scanner is able to capture the surface color, it can further apply the material paste to the reconstructed surface, the so-called material imprint.

3D scanners can be compared to cameras, and their line of sight is cone-shaped, and the collection of information is limited to a certain range. The difference between the two is that the camera captures color information, while the 3D scanner measures distance. Because the measured results contain depth information, they are often referred to as depth** or distance**.

Summary. Hello, the principle of 3D printing technology is to convert 3D computer-aided design (CAD) files into printable file formats (such as STL) and use 3D printers to process them layer by layer into solid objects. 3D printers usually use different materials, such as plastics, metals, ceramics, etc., to process the raw materials layer by layer to form a complete 3D object.

The principle of 3D scanning technology is to use a 3D scanner to scan a physical object and turn it into a 3D model. 3D scanners typically use laser or structured light to scan and convert the scanned surface data into point cloud data. The point cloud data is then converted into a 3D model using 3D scanning software, which can be used in fields such as 3D printing, computer-aided design (CAD), and virtual reality.

The principle of 3D printing and scanning technology is to transform physical objects into digital models through digital technology, realize digital production and design, and bring revolutionary changes to the manufacturing and design industry.

What products are applied to.

Hello, the principle of 3D printing technology is to convert 3D computer-aided design (CAD) files into printable file formats (such as STL) and use 3D printers to process them layer by layer into solid objects. 3D printers usually use different materials, such as plastics, metals, ceramics, etc., to process the raw materials layer by layer to form a complete 3D object. The principle of 3D scanning technology is to use a 3D scanner to scan a physical object and turn it into a 3D model.

3D scanners typically use laser or structured light to scan and convert the scanned surface data into point cloud data. The point cloud data is then converted into a 3D model using 3D scanning software, which can be used in areas such as 3D printing, computer-aided design (CAD), and virtual first run reality. The principle of 3D printing and scanning technology is to transform physical objects into digital models through digital technology, realize digital production and design, and bring revolutionary changes to the manufacturing and design industry.

3D printing and scanning technology can be applied to many products, including but not limited to the following aspects: 1. Industrial manufacturing: 3D printing technology can be used to manufacture mechanical parts, auto parts, aircraft parts and other industrial products, which can greatly improve production efficiency and reduce costs.

2. Medical field: 3D printing technology can be used to manufacture medical products such as prosthetics, teeth, artificial organs, etc., which can provide better medical services for patients. 3. Culture and Art:

Three-dimensional printing technology can be used to make cultural relics replicas, sculptures, artworks and other cultural and artistic products, which can protect cultural heritage and promote the development of culture and art. 4. Architectural design: 3D printing technology can be used in the manufacturing of building components, architectural model making and other fields, which can improve the efficiency and quality of architectural design.

5. Education and scientific research: 3D printing and scanning technology can be used in academic research, teaching experiments and other fields, and can be used for experiments and research by researchers and researchers. 3D printing and scanning technology has a wide range of applications in various fields, which can greatly improve the efficiency of production and design, and bring more convenience and innovation to people's lives.

Are you asking about laser or photographing? Nowadays, the emerging mainstream is photographic scanners, that is, non-contact scanning.

To put it simply, the whole scanning process of the photographic 3D scanner is based on the principle of optical triangulation, firstly, the projection module projects a series of encoded gratings onto the surface of the object; The corresponding modulated image is obtained by the acquisition module, and then the three-coordinate position of the point cloud data is obtained through a unique algorithm.

I hope the following ** helps to understand.

Three-dimensional scanning is a high-tech technology integrating optical, mechanical, electrical and computer technologies, which is mainly used to scan the spatial shape, structure and color of objects to obtain the spatial coordinates of the surface of objects. Its significance lies in the fact that it can convert the three-dimensional information of the physical object into a digital signal that can be directly processed by the computer, which provides a very convenient and fast means for the digitization of the physical object.

The main technical concept is like this, of course, different developers have adopted different means to complete this process, domestic such as Beijing Bowei Hengxin, Shanghai Digital Manufacturing, Hangzhou Xianlin, Shenzhen Lean Xun, etc. have been developed, in comparison, Bowei Hengxin may be more reliable, after all, it has done services for the seven astronauts, and has passed the official certification, it is likely to be exported abroad, so the prospect of three-dimensional scanning is still very promising, especially in the future of the interconnection ** will also develop to three-dimensional, like ** Some well-known ** have already begun to try to display 3D models of goods.

Ditto. It is mainly through some principles of optics to lift the three-axis information of the physical object, and then reconstruct the three-dimensional model through functional calculation.

What do the enthusiastic netizens upstairs mean? Are the three researchers employees of Bowei Hengxin? What does Bowei Hengxin do.

Acquire three-axis information and reassemble it into a 3D model.

The types are not universal, but the principles are different.

Three researchers... Bowei Hengxin's... The question is really ...