Preparation for 3d scanner production

has been in the help of open source software to complete the production of 3d printer, but in fact, in the process of making 3d printer did not specifically write what code, feel that they are just simple to assemble the printer, I also want to look at the printer code, but the code is very large, feeling is not what I can control now, After that, we learned that 3d scanners are much easier to make than 3d printers. Just to learn the graphics of their own, for graphics programming has a foundation, so decided to develop a 3d scanner.

First of all I own Baidu 3d scanner,

Mainly divided into two categories. One kind is the passive way, is does not need the specific light source, completely relies on the object in the natural light condition carries on the scanning, often uses the binocular technique, but the precision is low, can only scan out has the geometrical characteristic the object, cannot satisfy many fields the request. Another kind is the active way, is like the object projection specific light, which represents the technical laser line-type scanning, the accuracy is high, but because each time can only project one ray, so the scanning speed is slow. In addition, because lasers can cause damage to organisms and more precious objects, they cannot be used in certain fields. The emerging technology is the structure of light scanning, structural light also belongs to the active way, through the projection or grating projection at the same time a number of light, you can take a surface of the object, only need a few faces of information to complete the scan, the biggest feature is3D ScannerThe scanning speed is fast and can be realized programmatically. There is also a low-frequency pulse wave (low-frequency sound wave) principle, mainly used in level measurement. The low frequency pulses are transmitted based on a two-dimensional array beamforming, and the 3D level scanner receives echoes from silos, warehouses, or other interior materials. The digital signal processor of the device is used to sample and analyze the received signal, and by estimating the time and direction of the echo arrival, the processor forms a three-dimensional graph of the surface of the material, which is processed by a proprietary computational method and generates a 3D image, which can be displayed on the remote screen. The level meter can accurately obtain the volume and quality of the material, so that the process level monitoring and Inventory control reach a new height. Material level meter accurate material detection can improve operational efficiency and management capacity, high-cost emergency reduction, speed up returns this is the introduction of Baidu Encyclopedia, for the development of 3d scanners have a general understanding, now is the decision to do which, considering the cost problem, I chose the active Laser Point 3d scanner, After looking for DIY information on the Internet, others recommend this laser point-type scanning method. Next is the specific preparation, the need for hardware has a camera, laser head, there are some basic circuits. Software needs to be developed on its own. Specific principles of knowledge, I will be a special post next time to explain.

Preparation for 3d scanner production