Glossary¶
The following terms related to Artec Studio and 3D scanning appear regularly in this manual.
- accuracy
- How closely a measurement matches the actual value of the quantity being measured.
- Autopilot
- An advanced smart mode that guides the user through postprocessing in a few steps, automatically selecting the most effective settings and producing a 3D model.
- bundle
- Capture of an object through simultaneous use of multiple scanners, whose numbers and relative positions are specified in the application.
- CAD model
- CAD object
- A feature-based, parametric solid model used in design engineering and manufacturing. It can be created in a CAD system, reverse-engineering software package or Artec Studio since version 15.
- collection
- A set of scans (or models) for alignment. An alignment session may only have one collection of registered scans and several collections of unregistered ones.
- fine registration
- A thorough frame alignment using an algorithm for relative positioning of sequential frame pairs.
- frames
- 3D surfaces captured during a scanning session, collectively constituting a scan. The scan rate varies with scanner type and can reach a maximum of 15 frames per second using Eva.
- fusion
- Process that creates a polygonal 3D model. It effectively melts and solidifies the captured and processed frames or point-cloud surfaces. Fusion can be run as a separate algorithm or throughout the scanning (Real-time fusion).
- global registration
- Algorithm that optimizes the relative positions of all frames using a single coordinate system.
- group
- A method of organizing objects in the Workspace panel hierarchy.
- HD scan
- A scan that contains some frames of the high-definition (HD) resolution.
- key frames
- Frames used by the global registration algorithm. The algorithm selects them automatically to fully cover the surface of the captured object using as few as possible.
- mesh
- The surface geometry of a 3D model; it comprises a series of linked polygons.
- model
- The 3D object that results from the fusion operation (in Artec Studio) or another modeling process in a different software package.
- near and far cutting planes
- Planes that limit the space in which the scanner is capturing 3D frames. The device will ignore everything that is closer than the near cutting plane or more distant than the far cutting plane.
- object
- A distinct entity in the scanned scene, or a generic term for all 3D data in Artec Studio: scans, point clouds, polygon and CAD models, and primitives.
- origin
- The center of the coordinate system.
- primitive
- CAD primitive
- A simple CAD model created in Artec Studio and fitted to a polygon model.
- project
- A method of managing the scanned material, processed data and user operation history, either in memory or on disk. Artec Studio project files use the SPROJ extension.
- resolution
- The ability of a scanning system to capture detail in an object. See also 3D resolution.
- rough registration
- Preliminary frame alignment performed during capture.
- scan
- A sequence of frames captured in a single continuous movement of the scanner around an object or scene.
- SD scan
- A scan that contains only frames of the standard-definition (SD) resolution.
- section; in a point-cloud scan
- Corresponds to the region selected in the Ray preview area. The application may save these sections in the export files differently (Merging Sections).
- section; in measurements
- Short for cross-section. Section is the plane that splits model or scan into two parts (Sections and Volume).
- supporting surface
- A surface on which the object is resting (e.g., a table or the floor).
- targets
- Stickers placed on the object being scanned to ease identification of the various regions. There are two types of targets: non-coded and coded. Unless the type is explicitly specified, the target is considered non-coded. Typically, a non-coded target is a round sticker that has a black ring with a white circle in the center; a coded target has a unique code ring that photogrammetry software can automatically recognize.
- tracking
- Calculation of the scanner’s position in a coordinate system relative to the scene.
- transformation
- Any change in the position of a scan and/or its frames, for example, translation and rotation.
You can also find these terms along with some algorithm parameters in Index.