http://www.k-wave.org/forum/topic/grid-set-in-time-reversal-algorithm Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 01:49:24 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/grid-set-in-time-reversal-algorithm#post-8367 Thu, 16 Dec 2021 10:36:46 +0000 Bradley Treeby 8367@http://www.k-wave.org/forum/ <p>Hi Martin,</p> <p>It's difficult to know without more details. Are you doing something similar to the interpolation approach described in the <a href="http://www.k-wave.org/documentation/example_pr_2D_tr_circular_sensor.php">2D Time Reversal Reconstruction For A Circular Sensor Example</a>? (You can open this in the MATLAB help browser to see and run the code.)</p> <p>Brad </p> http://www.k-wave.org/forum/topic/grid-set-in-time-reversal-algorithm#post-8347 Sun, 14 Nov 2021 15:53:11 +0000 ustczyw 8347@http://www.k-wave.org/forum/ <p>Dear experts,<br /> Thanks for the kwave toolbox which is very helpful for our study.<br /> But we also encountered some problems. When using time reversal to reconstruct the photoacoustic image, we set the grid to 1000*1000 to get an image with better contrast, but the image is not detailed enough. When we set the grid to 2000*2000, the image details became more, but the image had more dot-like and streak artifacts, and the contrast of the image was severely reduced (the blood vessel color became very close to the background). What is the cause of this phenomenon?</p> <p>Thank you,<br /> Martin </p>