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View and Projection Matrix from Intrinsic and Extrinsic Camera Parameters

December 9, 2014 - 3:45am #1

Hi, 

I've calculated Extrisinc [R|t] and Intrinsic [A] parameters for a see through device (MOVERIO BT-200) using an OpenCV calibratioin utils.

Now I'm trying to calculate the View And Projection Matrices from those parameters, but get weird results, as I get lost in the coordinate system conversions. I've found this (https://developer.vuforia.com/resources/dev-guide/camera-parameters) but seems more OpenGL oriented, while Unity3D seems to use a different reference system.

Any help? Unfortunately I cant wait for the for the Digital Eyewear SDK to be release ( still waiting for being accepted in the beta program).

Josef Grunig

View and Projection Matrix from Intrinsic and Extrinsic Camera Parameters

June 5, 2018 - 6:09am #4

Not sure if it helps you, but for my purposes, I ended up writing a native plugin to get some camera parameters that werent exposed in Unity. Kinda of annoying, they should really gives us all camera parmeters available in native. 

View and Projection Matrix from Intrinsic and Extrinsic Camera Parameters

June 5, 2018 - 5:34am #3

I have this exact same problem. Did you encounter the solution? 

Thanks

View and Projection Matrix from Intrinsic and Extrinsic Camera Parameters

March 13, 2017 - 2:05am #2

Hi Josef,

I'm trying to solve exactly the same problem now. Could you please share your solutions or give me some hint? Highly appreciated!

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