Even Weighted Metering
- Determine the exposure settings the camera uses regarding the light
information coming from the entire scene, and averages without giving weighting to a particular area.
Even weighted is the default for accelerated, standard, and extended profiles.
Horizon Weighted Metering
- The camera uses the light information coming from the horizon to
determine the exposure setting. This mode is commonly used in scenarios with bright light coming from
directly above (e.g., indoors with bright ceiling lighting or outdoors with bright sunlight coming from
directly above), or to achieve the best balance of light and exposure for objects at the horizon. Compared
to even-weighted metering, this increases scan duration by approximately 14 seconds.
If the vertical scan area is limited, then the area used to determine the exposure (i.e., the exposure
metering area) might not be near the horizon. This is the case, if the vertical start angle is set to > -30°, or
if the vertical end angle is set to < 30°. The exposure metering area is then be moved up or down, and set
to the center of the remaining vertical scan area. The following figures illustrate this:
Figure 5-21 Exposure metering area (highlighted yellow) for the full vertical scan area
Figure 5-22 Exposure metering area for a limited vertical scan area set to e.g., 10° to 90°
Zenith Weighted Metering
- With zenith weighted metering, the camera uses the light information
coming from above the scanner to determine its exposure setting. Use this mode when there is very bright
light coming from windows, for example, and you want to achieve the most correct balance of light and
exposure for objects on the ceiling of building.
High Resolution
- With high resolution enabled, the full 13 MPx resolution of internal camera is used.
This improves colorization quality in SCENE and Sphere. Note, though, that this increases the file size
and processing times. Only activate this option if the best quality colorization is required. If this option
FARO
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Focus Premium Laser Scanner User Manual
Chapter 5: Getting Started
FARO Focus Premium (March 2022)
Page 47 of 157
