# Scale-space filtering: A new approach to multi-scale description

@inproceedings{Witkin1984ScalespaceFA, title={Scale-space filtering: A new approach to multi-scale description}, author={A. Witkin}, booktitle={ICASSP}, year={1984} }

The extrema in a signal and its first few derivatives provide a useful general purpose qualitative description for many kinds of signals. A fundamental problem in computing such descriptions is scale: a derivative must be taken over some neighborhood, but there is seldom a principled basis for choosing its size. Scale-space filtering is a method that describes signals qualitatively, managing the ambiguity of scale in an organized and natural way. The signal is first expanded by convolution with… CONTINUE READING

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