Cue detection with steerable filters

(with Edward Adelson , MIT)

Corner (green), T (red), and X (green) junction detection

Outputs of L, T, and X junction detectors

The outputs of L, T, and X junction detectors are overlaid on these simple test images in green, red, and blue, respectively. The junctions are correctly detected, independent of whether the contours forming the junctions are formed by lines or edges.

References

W. T. Freeman, Steerable Filters and Local Analysis of Image Structure, Ph.D. Thesis, Massachusetts Institute of Technology, 1992.

W. T. Freeman and E. H. Adelson, The design and use of steerable filters, IEEE Trans. on Pattern Analysis and Machine Intelligence, vol. 13, no. 9, pp. 891 - 906, September, 1991. MIT Vision and Modeling Group TR 126.