https://github.com/smidm/camera.py

Python module for projective camera model
https://github.com/smidm/camera.py

3d camera computer-vision geometry python

Last synced: 3 months ago
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Python module for projective camera model

• Host: GitHub
• URL: https://github.com/smidm/camera.py
• Owner: smidm
• License: mit
• Created: 2014-08-06T12:51:30.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2016-12-22T08:10:02.000Z (about 8 years ago)
• Last Synced: 2023-03-22T20:48:16.832Z (almost 2 years ago)
• Topics: 3d, camera, computer-vision, geometry, python
• Language: Python
• Size: 2.94 MB
• Stars: 41
• Watchers: 1
• Forks: 23
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

Awesome Lists containing this project

README

        
Python Projective Camera Model

==============================

Features

--------

- camera intrinsic and extrinsic parameters handling

- various lens distortion models

- model persistence

- projection of camera coordinates to an image

- conversion of image coordinates on a plane to camera coordinates

- visibility handling

Installation

------------

:: 

    pip install git+https://github.com/smidm/camera.py.git

    

Usage

-----

Setup camera and project point [0, 0, 0]::

    import camera

    import numpy as np

    import math

    c = camera.Camera()

    c.set_K_elements(1225.0, math.pi / 2, 1, 480, 384)

    R = np.array(

        [[-0.9316877145365, -0.3608289515885, 0.002545329627547],

         [-0.1725273110187, 0.4247524018287, -0.8888909933995],

         [0.3296724908378, -0.8263880720441, -0.4579894432589]])

    c.set_R(R)

    c.set_t(np.array([[-1.365061486465], [3.431608806127], [17.74182159488]]))

    

    print c.world_to_image(np.array([[0., 0., 0.]]).T)

    

Load camera parameters from a file::

    import camera

    import numpy as np

    c = camera.Camera()

    c.load('camera_01.yaml')

    c.world_to_image(np.array([[0., 0., 0.]]).T)

Documentation

-------------

http://python-projective-camera-model.readthedocs.io

Development

-----------

To test the package run::

    $ ./run_tests.sh

    

The module is missing some (essential) functionality (search for TODO comments). I appreciate pull requests that fill the gaps. 

License

-------

MIT