Recognizing planar curves using curvature-tuned smoothing

The authors present a technique for both the smoothing and decomposition of planar curves. This technique, called curvature-tuned smoothing, provides for robust rotation- and translation-invariant smoothing of planar curves. As the smoothing is performed, parts are extracted robustly and at multiple scales. These parts can subsequently be used for object recognition. The parts extracted correspond to regions of roughly uniform curvature and constitute a rich description of the original data. This representation describes some regions at multiple scales, since multiple structures may occur