16
an air flow over the camera.
3.8.4
Coordinate of the Camera System
There are two coordinate system need to be understood, one is camera coordinate system
(CCS), one is world coordinate system (WCS).
CCS: CCS describe the two-dimensional data, the origin of coordinates is the optic center.
WCS: WCS describe the three-dimensional information.
The CCS data can switch to the WCS data using the camera internal parameters.
Fig. 3.5: Origin of the Coordinate System
The origin of the coordinate system is defined as the below figure shows:
1.
X coordinate is zero at the X direction axis line of the camera housing;
2.
Y coordinate is 9.75mm offset from the Y direction axis line of the camera housing;
3.
Z coordinate is zero offset at the front of the camera housing;
Meshlab and CloudCompare tools are recommended to analyze the point cloud data saved by
Vzense software or SDK method.
Summary of Contents for DS77 Lite
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