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- W2388734121 abstract "We develop an efficient wavefield decomposition method in the local-angle-domain using local exponential frame (LEF) beamlets, which overcomes the lack of uniquely defined directional localization of local cosine bases (LCB) and local sine bases (LSB). The wavefield is decomposed in the local angle domain by using the local exponential beamlet, which is a tight frame with redundancy ratio 2 and implemented by a linear combination of local cosine and sine transforms. As the local cosine/sine transforms have fast algorithms, this method has much better efficiency than the decomposition methods previously used in directional illumination analysis, such as the local slant stacking or Gabor-Daubechies frame method. The directional illumination (DI) maps and the acquisition dip responses (ADR) for the 2D SEG/EAGE salt model and SIGSBEE model demonstrate the validity and feasibility of our method. Furthermore, because of its high computational efficiency, the new method makes the 3D directional illumination analysis readily applicable in the industry." @default.
- W2388734121 created "2016-06-24" @default.
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- W2388734121 date "2010-01-01" @default.
- W2388734121 modified "2023-09-24" @default.
- W2388734121 title "Directional illumination analysis for complex medium using local exponential frame beamlet" @default.
- W2388734121 hasPublicationYear "2010" @default.
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