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No version for distro lunar. Known supported distros are highlighted in the buttons above.
No version for distro kinetic. Known supported distros are highlighted in the buttons above.

apriltags package from apriltags_ros repo

apriltags apriltags_ros

Package Summary

Tags No category tags.
Version 0.1.2
License LGPL
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/RIVeR-Lab/apriltags_ros.git
VCS Type git
VCS Version indigo-devel
Last Updated 2018-02-17
Dev Status MAINTAINED
Released RELEASED

Package Description

A catkin version of the C++ apriltags library

Additional Links

Maintainers

  • Mitchell Wills

Authors

  • Michael Kaess
  • Hordur Johannson
AprilTags library

Detect April tags (2D bar codes) in images; reports unique ID of each
detection, and optionally its position and orientation relative to a
calibrated camera.

See examples/apriltags_demo.cpp for a simple example that detects
April tags (see tags/pdf/tag36h11.pdf) in laptop or webcam images and
marks any tags in the live image.

Ubuntu dependencies:
sudo apt-get install subversion cmake libopencv-dev libeigen3-dev libv4l-dev

Mac dependencies:
sudo port install pkgconfig opencv eigen3

Uses the pods build system in connection with cmake, see:
http://sourceforge.net/p/pods/

Michael Kaess
October 2012

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

AprilTags were developed by Professor Edwin Olson of the University of
Michigan.  His Java implementation is available on this web site:
  http://april.eecs.umich.edu.

Olson's Java code was ported to C++ and integrated into the Tekkotsu
framework by Jeffrey Boyland and David Touretzky.

See this Tekkotsu wiki article for additional links and references:
  http://wiki.tekkotsu.org/index.php/AprilTags

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

This C++ code was further modified by
Michael Kaess (kaess@mit.edu) and Hordur Johannson (hordurj@mit.edu)
and the code has been released under the LGPL 2.1 license.

- converted to standalone library
- added stable homography recovery using OpenCV
- robust tag code table that does not require a terminating 0
  (omission results in false positives by illegal codes being accepted)
- changed example tags to agree with Ed Olson's Java version and added
  all his other tag families
- added principal point as parameter as in original code - essential
  for homography
- added some debugging code (visualization using OpenCV to show
  intermediate detection steps)
- added fast approximation of arctan2 from Ed's original Java code
- using interpolation instead of homography in Quad: requires less
  homography computations and provides a small improvement in correct
  detections

todo:
- significant speedup could be achieved by performing image operations
  using OpenCV (Gaussian filter, but also operations in
  TagDetector.cc)
- replacing arctan2 by precomputed lookup table
- converting matrix operations to Eigen (mostly for simplifying code,
  maybe some speedup)


CHANGELOG

Changelog for package apriltags

0.1.2 (2016-07-06)

0.1.1 (2014-11-14)

  • Updated author and website
  • Contributors: Mitchell Wills

0.1.0 (2014-11-08)

  • Updated dependancies for indigo
  • Contributors: Mitchell Wills

0.0.3 (2014-11-08)

  • Added info to package.xml
  • Added libv4l-dev as a dependancy
  • Contributors: Mitchell Wills

0.0.2 (2014-10-31)

  • Did some small cleanup and renaming to topics Added the package ros wiki urls Added example launch file
  • Contributors: Mitchell Wills

0.0.1 (2014-10-27)

Wiki Tutorials

See ROS Wiki Tutorials for more details.

Source Tutorials

Not currently indexed.

Package Dependencies

System Dependencies

Dependant Packages

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged apriltags at answers.ros.org

No version for distro ardent. Known supported distros are highlighted in the buttons above.
No version for distro jade. Known supported distros are highlighted in the buttons above.

apriltags package from apriltags_ros repo

apriltags apriltags_ros

Package Summary

Tags No category tags.
Version 0.0.3
License LGPL
Build type CATKIN
Use RECOMMENDED

Repository Summary

Checkout URI https://github.com/RIVeR-Lab/apriltags_ros.git
VCS Type git
VCS Version hydro-devel
Last Updated 2014-11-09
Dev Status MAINTAINED
Released RELEASED

Package Description

A catkin version of the C++ apriltags library

Additional Links

Maintainers

  • Mitchell Wills

Authors

  • Mitchell Wills
AprilTags library

Detect April tags (2D bar codes) in images; reports unique ID of each
detection, and optionally its position and orientation relative to a
calibrated camera.

See examples/apriltags_demo.cpp for a simple example that detects
April tags (see tags/pdf/tag36h11.pdf) in laptop or webcam images and
marks any tags in the live image.

Ubuntu dependencies:
sudo apt-get install subversion cmake libopencv-dev libeigen3-dev libv4l-dev

Mac dependencies:
sudo port install pkgconfig opencv eigen3

Uses the pods build system in connection with cmake, see:
http://sourceforge.net/p/pods/

Michael Kaess
October 2012

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

AprilTags were developed by Professor Edwin Olson of the University of
Michigan.  His Java implementation is available on this web site:
  http://april.eecs.umich.edu.

Olson's Java code was ported to C++ and integrated into the Tekkotsu
framework by Jeffrey Boyland and David Touretzky.

See this Tekkotsu wiki article for additional links and references:
  http://wiki.tekkotsu.org/index.php/AprilTags

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

This C++ code was further modified by
Michael Kaess (kaess@mit.edu) and Hordur Johannson (hordurj@mit.edu)
and the code has been released under the LGPL 2.1 license.

- converted to standalone library
- added stable homography recovery using OpenCV
- robust tag code table that does not require a terminating 0
  (omission results in false positives by illegal codes being accepted)
- changed example tags to agree with Ed Olson's Java version and added
  all his other tag families
- added principal point as parameter as in original code - essential
  for homography
- added some debugging code (visualization using OpenCV to show
  intermediate detection steps)
- added fast approximation of arctan2 from Ed's original Java code
- using interpolation instead of homography in Quad: requires less
  homography computations and provides a small improvement in correct
  detections

todo:
- significant speedup could be achieved by performing image operations
  using OpenCV (Gaussian filter, but also operations in
  TagDetector.cc)
- replacing arctan2 by precomputed lookup table
- converting matrix operations to Eigen (mostly for simplifying code,
  maybe some speedup)


CHANGELOG

Changelog for package apriltags

0.0.3 (2014-11-08)

  • Added info to package.xml
  • Added libv4l-dev as a dependancy
  • Contributors: Mitchell Wills

0.0.2 (2014-10-31)

  • Did some small cleanup and renaming to topics Added the package ros wiki urls Added example launch file
  • Contributors: Mitchell Wills

0.0.1 (2014-10-27)

Wiki Tutorials

See ROS Wiki Tutorials for more details.

Source Tutorials

Not currently indexed.

Package Dependencies

No dependencies on ROS packages.

System Dependencies

Dependant Packages

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged apriltags at answers.ros.org