http://www.k-wave.org/forum/topic/statistics-on-reconstructed-field Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:41:02 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/statistics-on-reconstructed-field#post-690 Thu, 16 Aug 2012 14:57:23 +0000 Christophe 690@http://www.k-wave.org/forum/ <p>Brad,</p> <p>It works great! I did think of something like that but missed the possibility to enforce the pressure values as B.C. </p> <p>Thanks for your help. Again, impressive work!</p> <p>Christophe </p> http://www.k-wave.org/forum/topic/statistics-on-reconstructed-field#post-688 Thu, 16 Aug 2012 12:15:35 +0000 Bradley Treeby 688@http://www.k-wave.org/forum/ <p>Hi Christophe,</p> <p>You could achieve this by setting up the time reversal using <code>source.p</code> rather than <code>sensor.time_reversal_boundary_data</code>. For example, set <code>source.p_mask</code> to be the same as your original <code>sensor.mask</code>, set <code>source.p</code> to be your recorded time series in time reversed order, then set <code>source.p_mode</code> to <code>&#39;dirichlet&#39;</code> to enforce the pressure values as a dirichlet boundary condition (rather than as a mass source). You should then be free to set your sensor mask as you please.</p> <p>Let me know if you get stuck,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/statistics-on-reconstructed-field#post-687 Thu, 16 Aug 2012 10:34:11 +0000 Christophe 687@http://www.k-wave.org/forum/ <p>Hi Dr. Treeby and Dr. Cox</p> <p>First I would like to congratulate you and your team for this great toolbox. Thanks for sharing such a high quality tool!</p> <p>I am struggling to find a way to output all time steps of the reconstructed field over the whole medium grid (i.e. not only the final field). I would like to be able to signal/image processing of the time-reversed propagation. However the way sensor.time_reversal_boundary_data works, it is not compatible with a redefinition of the sensor grid to the whole grid, and I don't find a good way to output and save the back-propagating field for each time steps.</p> <p>Is there a way around this limitation?</p> <p>Cheers,</p> <p>Christophe </p>