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June 29, 20223D Scanning Technologies and 3d digital scanner
A single scan is not enough to re-create a complete model of the object being scanned. Normally, hundreds of scans are necessary to capture all of the information from various sides and angles. All of these scans than have to be integrated through a common reference system known as alignment/registration. Finally, the individual scans are merged to re-create the final model. This entire process of bringing together the individual scans and merging them is known as a 3D scanning pipeline.
There are different types of 3d scanning methods:
Laser-based 3D Scanners
Laser-based 3D scanners use a process called trigonometric triangulation to accurately capture a 3D shape as millions of points. Laser scanners work by projecting a laser line or multiple lines onto an object and then capturing its reflection with a single sensor or multiple sensors. The sensors are located at a known distance from the laser’s source. Accurate point measurements can then be made by calculating the reflection angle of the laser light. Laser scanners are very popular and come in many designs. They include handheld portable units, arm-based, CMM based, long-range, and single-point long-range trackers.
Projected or Structured Light 3D Scanners
Historically known as “white light” 3D scanners, mainly structured light 3D scanners today use a blue or white LED projected light. These 3D scanners project a light pattern consisting of bars, blocks, or other shapes onto an object. The 3D scanner has one or more sensors that look at the edge of those patterns or structural shapes to determine the object’s 3D shape. Using the same trigonometric triangulation method as laser scanners the distance from the sensors to the light source is known. Structured light scanners can be tripod mounted or handheld.
Medium and Long-Range 3D Scanners
Long-range 3D scanners come in two major formats-Pulse based and phase shift–both of which are well suited for large objects such as buildings, structures, aircraft, and military vehicles. Phase shift 3D scanners also work well for medium-range scan needs such as automobiles, large pumps, and industrial equipment. These scanners capture millions of points by rotating 360 degrees while spinning a mirror the redirects the laser outward towards the object or areas to be 3D scanned.
Photogrammetry
This technology is quite simple. It involves stitching together photographs of an object taken from different angles. The photos are taken using a camera or even your smartphone with specific camera settings, while the stitching of those photos is done by special software. The software identifies pixels that correspond to the same physical point and brings pictures together accordingly. Parameters like the focal length of the lens and its distortion need to be fed into the software by the user to create an accurate model. Photogrammetry is so simple that you can pick up your phone right now and start taking pictures. The big advantage of using photogrammetry is its accuracy level and the speed with which the data of an object is acquired.
What makes up a 3d scanner camera price
Scanners are usually reserved for industrial applications. But this tool has gradually evolved over time.
If you are just an amateur and need low-cost 3D scanners to use for DIY projects, then you’re in right place.
- 3D Scanner 1.0 A from XYZprinting
- Sense 2 from 3D Systems
- Structure Sensor from Occipital
- V2 from Matter & Form
- EINSCAN-SE from Shining 3D
- RangeVision Smart
- SLS Pro S3 from HP
- iReal 2E from ScanTech
- Eva Lite from Artec 3D
Still not finding any to your liking? Head on over to 3D2GO and we just might find what suits you best.
Where to find the best 3d scanner
Here at 3D2GO we also have some of the best scanners by DAVID for when you prefer doing the projects on your own
At 3D2GO, we offer end-to-end services. Worried after the scanning? Don’t bother looking anywhere else because we can cover other services. 3D modelling? 3D printing? 3D scaling? We’ve got it all covered. You can save time contacting others. Instead use that time to work on other projects as we take our next steps with you.
Get in touch with us by sending us files in .obj or .stil format in our email address management@my3d.com.ph. You can also reach us through our Facebook and Instagram pages today!