Basic concepts for the Aurora Imaging Library 3D Measurement module
The basic concepts and vocabulary conventions for the Aurora Imaging Library 3D Measurement module are:
- Depth map. An image where the gray value of a pixel represents its depth in the world, or a container where the range component stores depth values with X and Y-coordinates identified by column and row index, respectively.
- Edge transition. A transition from a lower Z-value to a higher Z-value (or vice versa) that is sustained over a distance and occurs at an object's border.
- Gap. An invalid region in the profile resulting from missing data in the source depth map.
- Invalid transition. A transition from valid data to invalid data (or vice versa).
- Marker. Identifies the location of a single transition or pair of transitions along a profile. The Aurora Imaging Library 3D Measurement module allows you to search for edge transitions, invalid transitions, and ridge transitions.
- Path. The route along which to find transitions.
- Profile. A representation of the depth information in a cross-section of data.
- Ridge transition. A transition from a lower Z-value to a higher Z-value (or vice versa) that quickly returns to the starting depth, forming a local maximum or minimum at the center of a thin object.
- Template. Represents the location of an expected edge in a depth map.