Lucas-Kanade tracker
From MMVLWiki
Tracking 2-D affine transforms of a texture patch using Lucas-Kanade |
Tracking of a nano-indenter in a TEM-video. The indenter is lost where it moves to fast for the tracking algorithm |
The Lucas-Kanade algorithm iteratively tries to minimise the difference between the image and a warped template. The technique can be used for image alignment, tracking, optic flow analysis, and motion estimation. In this example a texture patch in a Space Shuttle video is tracked over 324 frames. A 2-D affine transform was used as a model.
For the documentation of the mathematics have a look at the web-page of the CMU-project "Lucas-Kanade 20 years on" and at the publication by Baker and Matthews.
The implementation is available as an example application with HornetsEye. There also is a web-page with the source code of the Lucas-Kanade tracker.
See Also
External Links
- Hornetseye implementation
- CMU project: "Lucas-Kanade 20 years on"
- S. Baker, I. Matthews: Lucas-Kanade 20 Years On: A Unifying Framework, International Journal of Computer Vision, Vol. 56, No. 3, March, 2004, pp. 221-255.
- NASA high definition videos
