Seismic Waveform Inversion Using the Finite-Difference Contrast Source Inversion Method

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="532159.fig.003a" src="https://static.hindawi.com/articles/jam/volume-2014/532159/figures/532159.fig.003a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Background medium</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="532159.fig.003b" src="https://static.hindawi.com/articles/jam/volume-2014/532159/figures/532159.fig.003b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>True model</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="532159.fig.003c" src="https://static.hindawi.com/articles/jam/volume-2014/532159/figures/532159.fig.003c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Reconstruction result</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="532159.fig.003d" src="https://static.hindawi.com/articles/jam/volume-2014/532159/figures/532159.fig.003d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Variation of the data equation error</td></tr></table></td></tr></table>

<table>Applying the FD-CSI method to two abnormities inversion in an inhomogeneous background medium. (a) Background medium. (b) True model. (c) Reconstruction result after 1000 inversion iterations. (d) Variation of the data term with respect to iterations.</table>

Journal of Applied Mathematics

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Figure 3: Seismic Waveform Inversion Using the Finite-Difference Contrast Source Inversion Method 