Abilities and Limitations of a 3D Laser Scanner
A scanner is a device that optically scans an object and converts it into a digital image. Whereas the 3D laser scanner scans an object and gathers data about its shape and exterior structure in detail. It can also scan the object by recognizing the color at different regions.
The 3D laser scanner scans the object and stores in data format which can be used in future for constructing digital images as well as developing the three dimensional models. The three dimensional models are generally used for making a movie and also for developing attractive 3D games. The 3D scanning is done in various ways depending on the shape, size and features of the object. The scanning of tiny objects is done by covering them with a thin layer of white powder that will help the light photons to reflect back to the scanner. The problem with 3D laser scanning is that the 3D scanning of the transparent objects such as glass will only refract the light and give incorrect structural information.
How a 3D Laser Scanner Works
The 3D Laser scanner scans the object and detects the geometric points that are further used while reconstructing the object. The color at each point is also determined and kept in the memory so that actual color can be assigned while reconstructing the object. A 2D scanner is like a camera. The difference between camera and a 3D scanner is that the camera collects the colors in sequence about its surface, in its field of view and the 3D scanner collects the distance information about surfaces within its field of view.
The 3D laser scanner scans the objects and stores them in digital format. This device can scan larger objects such as objects ranging from cars, boats and big machineries. The object scanned will always be of high quality. This latest technology is used in industrial, technical and engineering fields.
A 3d laser scanner has very important application especially in the aerospace and aerodynamic, automobile industries. 3d laser scanners have the capability to scan the objects within a fraction of seconds. It also scans the object of various shape, size and material accurately. The main advantage of this device is that it describes the freeform surface and also digitizes the entire components that may lie inside the object. The digital ability of the scanners have resulted in the scanned surfaces to be displayed on screen in real-time and dynamically adapt sensor performance according to varying surface material, color and reflectivity.
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