What is a 3D digitizer?

three -dimensional (3D) digitizer is a device used in conjunction with a computer or other hardware capable of capturing accurate dimensions or surface topography of a real object and converting this information to a set of 3D points that can be used to create a digital representation of an object that is digitating. There are two basic forms of 3D digitizer, the first is a pocket or contact system in which the physical device is used to indicate the point of the actual object and the digitizer records location on request to obtain a point for the object. The second type of 3D digitizer is called a non -contact digitizer and can use lasers, white light or even magnetism to scan the surface of the object in 3D and then reconstruct the object in the virtual space. Use for 3D digitizer ranges from computer graphics and animation to engineering and industrial design, to medical and dental imaging and production.

Contact 3D digitizer can have many forms, but one of the commonly seen varieties includes the pen at the end ofLoubové arms. The tip of the stylus is located on the surface of the physical object and the button is pressed to send a signal to a computer that measures the position of the pen through the joint arm position and creates a single 3D point in the software. After entering multiple points via stylus, 3D designer or software itself, it combines points in polygons and creates a 3D representation of a physical object. More advanced versions of the 3D digitizer contact do not use hand; Instead, they can use a manual device whose position is monitored and measured by sensors placed peripherally around the scanning area. Some digitizers are completely separate and use advanced mechanisms inside the independent device to find the exact position of the unit and then send information wirelessly to digitizing software.

alternately uses a non -constructing 3D digitizer method, such as lasers, light, sound or magnetism for scanning the surface of the object from a distance, so they do not have to physically touch. One method is to use an optical triangThe urge, in which a narrow laser light strip is passed over the surface of the building and the reflection of the light is captured by an image sensor that converts the outline of the surface into a 3D strip that is woven together. Many of these systems are based on optical information, so the contactless 3D digitizer can sometimes capture the real color or texture of the object to create a 3D model that looks almost exactly like an object in the real world.

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series of fields use a 3D digitizer to collect information. In engineering and production is often used to create models for simulations. High -resolution digitizers can be used to find surfaces for imperfections or damage. In medical fields, the digitizer can be used to create precise models, so that prosthetics can be mounted exactly on the human body. In entertainment, a digitizer can be used to convert small conceptual models or even acting faces into 3D objects, which can then be animated or used in other media.