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Why does stereo calibration app provide result in zyx coordinates instead of xyz

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I have two identical camera setup and performed calibration on them. The resulting camera centric graph is as shown.
As can be seen, the Z axis has value of around 480mm, and x axis has value of around -570mm. But when the same is exported, stores the values in zyx format as shown below
The first value which should ideally correspond to x value of 550, but it shows the z value first followed y & x. Does translation get saved as zyx instead of xyz.
Also, x axis value has negative in figure1 which is missing in translation.Can someone explain how the two values are supposed to be interpreted?

Answers (1)

Vinayak on 16 Nov 2022
The issue is that we have a specific convention for representing the intrinsic matrix and image transforms that differ from the standard "text book" convention.
Firstly, I would like for you to go through the following doc page that describes the camera matrix:
We have functions, cameraMatrix and extrinsics, that can be used to get the properly formatted matrices. You may also open these files and see how exactly the data is configured




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