Brian N. Fuller, 1999. "Principal Component Methods for Suppressing Noise and Detecting Subtle Reflection Character Variations", Covariance Analysis for Seismic Signal Processing, R. Lynn Kirlin, William J. Done
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Seismic interpreters are sometimes presented with the challenge of identifying small lateral reflection character changes that can indicate significant lithologic variations. Examples of this occur in stratigraphic trap exploration and in estimating the lateral extent of a reservoir. Standard seismic trace plots, even in color, sometimes do not have sufficient dynamic range to show a small waveform variation against a background of traces that are very similar to one another. Additionally, noise can obscure subtle waveform variations.