Glossary¶

C3D¶: Proprietary format that is intended to save raw scanned data from Ray.
Configuration file¶
Calibration file¶: Each Ray scanner is supplied with a parameter file that stores parameters necessary to operate the scanner and to process raw scan data. This parameter file may be modified during maintenance and recalibration.
Distance¶
Nominal distance¶: Average distance between the scanner mirror and the target object.
Point cloud¶: A set of position datum in a three-dimensional coordinate system. These data are usually defined by X, Y, and Z coordinates, and typically are intended to be representative of the external surface of an object.
Point density¶
Distance between points¶
Resolution¶
Scan resolution¶: Ray internally controls scan resolution in angular terms, i.e. number of beams per degree. Since the scanner performs two types of movements, we define horizontal and vertical angles which are set equal for simplicity. This beam distribution, or spherical scan resolution is uniform in each dimension within the entire scan. It is, however, more practical to operate a linear value of point density measured in millimeters between beams on a particular distance.
Sphere¶
Reference sphere¶: Precise target that are designed to facilitate 3D scanning and processing when put into the scene. The spherical shape allows the highest possible scanning efficiency from various directions.
Target¶: Reference object or image that facilitates 3D scanning and processing.
Target cloud¶: An OBC file with a set of reference targets created in a photogrammetry solution, which can be imported to Artec Studio. It is possible to import multiple targets clouds and switch between them in a particular scanning session. During scanning, each target from the original set of reference targets is captured multiple times on different frames, resulting into a number of instances. The instances representing one particular target are grouped into clusters. Information about captured targets and their deviation from the reference ones is available in the Features panel. See also Inspecting Quality Of Targets Clouds Registration.