© Field of View 2018 GeoSnap Pro User Manual
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20
Description:
This input defines the transformation matrix required to align the body frame of the VN-200
to the camera frame of reference. This allows for the VN-200 to be placed in any arbitrary
orientation with respect to the camera. The default string is the appropriate string for the
standard mounting configuration of the VN-200 on the GeoSnap hotshoe module.
The variables {X, Y, Z}
B
are a measured parameter in the body reference frame with respect
to the VN-200. The variables {X, Y, Z}
C
are a measured parameter
in the camera’s frame of
reference.
GeoSnap performs an internal transformation to assign the standard aircraft coordinate
system to the camera so that the Z-axis is pointing out of the lens, the X-axis is off of the top
of the camera, and the Y-axis is off of the right of the camera. This can be seen below.
The matrix equation translates to the following three linear equations:
𝑋
𝐶
= 𝐶
00
∙ 𝑋
𝐵
+ 𝐶
01
∙ 𝑌
𝐵
+ 𝐶
02
∙ 𝑍
𝐵
𝑌
𝐶
= 𝐶
10
∙ 𝑋
𝐵
+ 𝐶
11
∙ 𝑌
𝐵
+ 𝐶
12
∙ 𝑍
𝐵
𝑍
𝐶
= 𝐶
20
∙ 𝑋
𝐵
+ 𝐶
21
∙ 𝑌
𝐵
+ 𝐶
22
∙ 𝑍
𝐵
Y
X
Z
Summary of Contents for GeoSnap Pro
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