Lucas-Kanade tracker
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** S. Baker, I. Matthews: [http://www.ri.cmu.edu/pub_files/pub3/baker_simon_2004_1/baker_simon_2004_1.pdf Lucas-Kanade 20 Years On: A Unifying Framework], International Journal of Computer Vision, Vol. 56, No. 3, March, 2004, pp. 221-255. | ** S. Baker, I. Matthews: [http://www.ri.cmu.edu/pub_files/pub3/baker_simon_2004_1/baker_simon_2004_1.pdf Lucas-Kanade 20 Years On: A Unifying Framework], International Journal of Computer Vision, Vol. 56, No. 3, March, 2004, pp. 221-255. | ||
* [http://www.nasa.gov/multimedia/hd/HDGalleryCollection_archive_1.html NASA high definition videos] | * [http://www.nasa.gov/multimedia/hd/HDGalleryCollection_archive_1.html NASA high definition videos] | ||
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Revision as of 20:09, 18 January 2008
Lucas-Kanade tracker
Tracking 2-D affine transforms of a texture patch using Lucas-Kanade |
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
