mrcal is a generic toolkit to solve calibration and SFM-like problems originating at NASA/JPL

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Miscellaneous mrcal
Overview

SYNOPSIS

$ mrcal-calibrate-cameras --focal 2000
      --outdir /tmp --object-spacing 0.01
      --object-width-n 10 '/tmp/left*.png' '/tmp/right*.png'

... lots of output as the solve runs ...
Wrote /tmp/camera0-0.cameramodel
Wrote /tmp/camera0-1.cameramodel

And now we have a calibration!

SUMMARY

mrcal is a generic toolkit to solve calibration and SFM-like problems originating at NASA/JPL. Functionality related to these problems is exposed as a set of C and Python libraries and some commandline tools. Documentation is available at http://mrcal.secretsauce.net/

REPOSITORY

https://www.github.com/dkogan/mrcal/

AUTHOR

Dima Kogan ([email protected])

LICENSE AND COPYRIGHT

Copyright (c) 2017-2020 California Institute of Technology (“Caltech”). U.S. Government sponsorship acknowledged. All rights reserved.

Licensed under the Apache License, Version 2.0 (the “License”); You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

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Comments
  • Have you tried using the star-shaped feature points detector ?

    Have you tried using the star-shaped feature points detector ?

    I really liked your work and your contribution to the calibration of cameras.

    I would like to ask about images with incomplete detection, in the documentation you referred to the works of "Thomas Sheps - Why having 10,000 parameters in your camera model is better than twelve", have you tried using their detector to determine corners ?

    image

    opened by VasilevIvanVladimirovich 6
  • Skipping acquire of configured file 'main/binary-i386/Packages'

    Skipping acquire of configured file 'main/binary-i386/Packages'

    when running apt-get update the terminal throws the message: N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://mrcal.secretsauce.net/packages/focal/public focal InRelease' doesn't support architecture 'i386' I have installed the library in an Ubuntu 20.04. version.

    opened by vejc94 1
  • Paste typo in license

    Paste typo in license

    Looks like there's an accidental paste typo in the license file: https://github.com/dkogan/mrcal/blob/95f6fdf077df45f619a700aec02d88bd48585918/LICENSE#L145

    opened by vietjtnguyen 1
  • I have a question about cv.undistPoints and cv.remap.

    I have a question about cv.undistPoints and cv.remap.

    Hi @dkogan I'm interested in doing an experiment with the camera model: LENSMODEL_SPLINED_STEREOGRAPHIC. I want to see how this model will show itself during the operation of my device.

    My application uses the undistPoints function, thanks to which I get the opportunity to create a map of a new undistorted position for each pixel. This allows me to quickly transform at arbitrary points without affecting the entire image.

    Using this code, I get an analog of the cv.initUndistortRectifeMap function, and then to get the undistortImage, the cv.remap function is used, which performs the inverse transformation + interpolation. m = mrcal.cameramodel('imgPath') model_pinhole = mrcal.pinhole_model_for_reprojection(m,fit="corners") mapxy = mral.image_transformation_map(m,model_pinhole )

    I need to get a transformation map for each pixel so that I can quickly know the new location of the undistorted pixel by index. Blue color - cv.UndistPoint() (opencvModel) Green - mrcal.image_transformation_map() (slined model)

    2022-12-15_11-58-55

    How can i do this ?

    opened by VasilevIvanVladimirovich 3
Owner
Dima Kogan
Dima Kogan
GitHub http://mrcal.secretsauce.net
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