In-Depth Compressive Seismic’s proprietary EPOCS™ technology is based on the popular mathematical projection onto convex sets (“POCS”). We developed an extension of POCS—EPOCS™—that accommodates naturally irregular grids, which POCS cannot handle. We have applied EPOCS™ to both real and synthetic data. At SEG 2017, we published and presented a technical paper on EPOCS™—Compressive seismic reconstruction with extended POCS for arbitrary irregular acquisition.
Compressive Seismic Acquisition (CS-Acquisition)
Conventional seismic acquisition has lagged behind the resolution requirement by modern seismic imaging, due to the Nyquist’s sampling limit. Compressive Seismic Acquisition (CSA), inspired by Compressive Sensing (CS), is a non-uniform sampling theory that uses significantly fewer sensors to get similar resolution—compared to conventional acquisition techniques. In order to produce...
Compressive Seismic Deblending & Wavefield Reconstruction (CS-Deblending & Wavefield Recon)
Seismic data obtained from CSA requires specialized Compressive Seismic Processing (CSP) before applying conventional seismic processing workflow. CSA mainly includes deblending and reconstruction, by using the sparsity of seismic signal in transform domains. In-Depth has developed a 3D CS joint deblending and reconstruction, and 5D CS reconstruction tools—both designed for marine and...