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Figure 1 – Stratal slices from a horizon picked close to t=1200 ms through (a) Sobel filter similarity and (b) energy ratio coherence volumes. Although both "coherence" algorithms used the same structurally-oriented filtered data volume as input and the same 5-trace by ±10 ms analysis window, these two images are quite different, with the Sobel filter similarity showing more stratigraphic features and the energy ratio coherence providing sharper fault images.
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Figure 1 – Stratal slices from a horizon picked close to t=1200 ms through (a) Sobel filter similarity and (b) energy ratio coherence volumes. Although both "coherence" algorithms used the same structurally-oriented filtered data volume as input and the same 5-trace by ±10 ms analysis window, these two images are quite different, with the Sobel filter similarity showing more stratigraphic features and the energy ratio coherence providing sharper fault images.