document: Augmenting the generalized hough transform to enable the mining of petroglyphs Rock art is an archaeological term for human-made markings on stone . It is believed that there are millions of petroglyphs in North America alone , and the study of this valued cultural resource has implications even beyond anthropology and history . Surprisingly , although image processing , information retrieval and data mining have had large impacts on many human endeavors , they have had essentially zero impact on the study of rock art . In this work we identify the reasons for this , and introduce a novel distance measure and algorithms which allow efficient and effective data mining of large collections of rock art .
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