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BlomDESKTOP ViewerTM User Guide v3.5 r1.0a
10.3 Measuring on BlomSTREET™ data
One of the main features of BlomSTREET™ is the capability to perform measurements directly on
the spherical images. Measurement tools are located on top of the BlomSTREET™ and are
described here.
Tool
Description
Point Measurement
Line Measurement
Height Measurement
Plane (Surface) Measurement
Volume Measurement
Clear all measurements
Finish measurement (active when
measuring)
10.3.1 A note on measurement on BlomSTREET™ data
A BlomSTREET™ image is a flat image where every pixel represents a spatial direction with a known
orientation, from a known recorded position.
In order to determine the coordinates of an object point, at least two images are required. As seen
below, with one Cyclorama you can only find out the orientation of the point:
Figure 93: Measurement principles (1)
However, with a second image, the point to measure will be located in the intersection of both
“direction cones”, so a true measurement can be achieved.
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