Errors in Per-Pixel Depth Correction

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This topic contains 1 reply, has 2 voices, and was last updated by  Oliver Kreylos 1 month, 2 weeks ago.

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  • #102977

    Dan Tamas
    Participant

    Hi everyone,

    I have some issues with the per pixel depth correction.
    When I try to use Calibrate Depth Lens tool the error says:
    “Could not calculate depth correction coefficients due to exception Attempt to solve linear system with rank-deficient matrix.”
    If I insist a bit more, it writes the following in the terminal:
    “Writing depth correction file /usr/local/etc/Vrui-4.2/Kinect-3.2/DepthCorrection-A70776X06644234A.dat”
    and gives the following error:
    Could not calculate depth correction coefficients due to exception IO::StandardFile: Unable to open file/usr/local/etc/Vrui-4.2/Kinect-3.2/DepthCorrection-A70776X06644234A.dat for writing due to error 13 (Permission denied)

    Does anyone know how to solve the issue? I really need the correction as I am using the software to export DEM’s for analogue modeling experiments.

    Thanks,
    Dan

    #103079

    Oliver Kreylos
    Moderator

    While capturing depth images, make sure that you have at least two different images covering each pixel (as the per-pixel equations are linear regressions).

    The error you’re seeing is a side effect of installing the Kinect package in a system directory. Use sudo ./bin/RawKinectViewer ... to run the application under an administrator account to get around it.

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