The most promising algorithm at the moment is to restore the Zonal focusing taking into account the coherent factor (link in the description of the video). These algorithms were applied in various modifications to the original Zonal focusing images obtained on an AUGUR-ART series flaw detector manufactured by the ECHOPLUS. The criterion for the highest-quality image from a number of treatments can be an assessment of the image quality of the signal-to-noise ratio in the selected layer. The function of calculating the signal-to-noise ratio is implemented in the AUGUR data analysis software.