Define the world coordinate system (WCS) as per normal. See 3.2.5 in the manual.
I recommend selecting a single camera both for position and rotation of WCS. Use a camera you are unlikely to move.
Always perform a camera calibration before using the Laser Chessboard Tool (LCT).
Before you start using the Laser Chessboard Tool, make sure that the “use WCS offset” checkbox, in Settings > Software…, is NOT selected. This applies every time you want to re-measure the offset.
Select the point you want to use as the new origin and shoot it.
The idea of this point is that it should be easy to re-find when you have moved the system in the environment, and its important that this point stay where it is.
Example numbers
WCS: -0.299, 0.040, -0.063 Distance: 0.937
Decide which “line” you want to use as your X-axis in the new off-set WCS.
Measure X axis offset (white dot of Captains ND to white dot of FO’s ND). Note that whenever you are measuring an axis, it will be the difference in coordinates from one point to the next that is used, so it’s crucial that the two points are measured in sequence without any other measurements between (for instance accidentally measuring the wrong location).
Example numbers
WCS: 0.299, 0.040, -0.063 Distance: 0.937 Diff: -0.698, -0.083, -0.061 Length: 0.705
WCS: -0.301, 0.036, -0.065 Distance: 0.919 Diff: 0.600, -0.004, -0.002 Length: 0.600
Next shoot the Y-axis by starting at the lower point of the selected line and then shoot the upper point.
Example numbers
WCS: 0.301, 0.036, -0.065 Distance: 0.919 Diff: 0.600, -0.004, -0.002 Length: 0.600
WCS: 0.302, 0.372, -0.098 Distance: 0.891 Diff: 0.000, 0.336, -0.033 Length: 0.338
How to implement this now into Smart Eye Pro...
Go to Settings and Software settings.
Click on the World Coordinate System tab.
Click the “use WCS Offset” checkbox.
So, looking at the numbers you get from LCT Software it might look like something like this.
I will now try to color code what I want you to do.
WCS: 0.299, 0.040, -0.063 Distance: 0.937
This is the position of the new origin.
----
WCS: 0.299, 0.040, -0.063 Distance: 0.937 Diff: -0.698, -0.083, -0.061 Length: 0.705
WCS: -0.301, 0.036, -0.065 Distance: 0.919 Diff: -0.600, -0.004, -0.002 Length: 0.600
This describes the vector from the first and second point of the X-axis that was measured. Note that the Diff (difference between two points) is used instead of the absolute coordinate.
----
WCS: 0.301, 0.036, -0.065 Distance: 0.919 Diff: 0.600, -0.004, -0.002 Length: 0.600
WCS: 0.302, 0.372, -0.098 Distance: 0.891 Diff: 0.000, 0.336, -0.033 Length: 0.338
This describes the vector for the Y-axis. Same principle as for the X-axis.
Comments
0 comments
Article is closed for comments.