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3D Data Type output format description
Z-Trak2 3D Profiler Sensors
3D Data Type output format
description
The
Linescan 3D
output type allows for different 3D data type output formats: UniformX Z
(RectifiedC), XZ (CalibratedAC) and XZRW (CalibratedACRW).
Things to know about 3D output data
•
Because of optical system considerations and because the measurement area forms a trapeze,
the resolution varies in the X and Z directions, namely, the intervals between points in the X
and Z axes vary. So, any raw value in X and in Z must be compensated for this variation; this
process is done automatically, and the result is called "calibrated" data.
•
Profiler values are also scaled down and require multiplication to represent full scale values.
The Z Scaler and X Scaler values serve two purposes: to restore full scale values and to convert
them to the chosen measurement units. The scaling factor is a model-dependent, read-only
value. Therefore,
the end user application must apply the scaling factor to the output
data to obtain the real-world measurement
. See Calculating real-world values.
Choosing a 3D Data Type output format
The following are the data types available when using Linescan 3D device output type:
•
UniformX Z
: The output consists of Z values alone (16 bits). This format is easier to represent
and to handle by image processing applications.
•
XZ
: The output consists of calibrated X and Z values (16 bits each).
•
XZRW
: The output consists of calibrated X and Z values, along with reflectance R (16 bits) and
multipurpose W (16 bits).
