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Artifact (error)
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<p>In <a href="/facts/Natural_science/8hg81Q2p">natural science</a> and <a href="/facts/Signal_processing/Npaja6zb">signal processing</a>, an artifact or artefact is any <a href="/facts/Error/20QgR4EI">error</a> in the perception or representation of any information introduced by the involved equipment or technique(s). </p>