Active contours are dynamic curves that move such that the defined energy function is minimized at the object boundaries. If we can formulate an energy function such that it has low values near the salt dome boundary and high values as we move away, then the active contours can accurately segment subsurface structure. Our objective in this work is to detect the salt dome boundaries using active contour; however, at the same time, we would like to impose a penalty on curve length to keep it minimum and smooth.
In this work, we formulated partial differential equations for accurately detecting and tracking salt domes within migrated seismic volumes. We presented an edge-based active contour with an arc length penalty to detect the boundaries of the salt domes in seismic images. Our experimental results show that the presented method outperforms state-of-the-art methods for salt dome detection. The results presented in Fig. 2 show the effectiveness of the proposed method. The proposed framework has minimal manual intervention and parameter tuning which makes active contour tracking very suitable for semi-automated seismic interpretation.
- M. Shafiq and G. AlRegib, “Interpreter-assisted tracking of subsurface structures within migrated seismic volumes using active contour,” 78th EAGE Annual Conference & Exhibition, Vienna, Austria, May 30-June 2, 2016. [PDF] [PPT (Poster/Slide)] [Bib] [Code]
- M. Shafiq, Z. Wang, and G. AlRegib, “Seismic interpretation of migrated data Using edge-based geodesic active contours” IEEE Global Conf. on Signal and Information Processing (GlobalSIP), Orlando, Florida, Dec. 14-16, 2015. [PDF] [PPT (Poster/Slide)] [Bib] [Code]