How to deterioration map

In this video, we will see how to generate a deterioration map. This qualitative map is fully described on ASTM D6087 standard. It is applied to provide a qualitative assessment of presence or absence of deterioration, at, or above the first rebar layer. This process generates a heatmap of the amplitudes in decibels at the detection points. Locations showing amplitudes lower than eight dB below the maximum recorded reflection amplitude correspond with possible deteriorated areas. The deterioration map can be accessed from the Analytics tool on the toolbar, under the Bridge menu. For more information on the data analytics tool, please watch the data analytics video. Select the desired quality for the map to generate. When generating any map from Analytics, a message appears on the top to let you know that the hyperbola detection has started and the first rebar layer item appears on the Insights section on the left panel. During calculations, a progress sphere will appear next to the First rebar layer. You can still use the interface to perform other processing or visualization tasks during calculations. When the map is ready, a message will appear at the top of the window. Click on the item to display the map on the slice view window. By hovering over or right clicking on the deterioration map item, options for deleting, showing or hiding the map appear. When the map is selected, its information section is shown on the right panel. From here, you can change the colormap used or adjust the limits of the colormap. By hovering over the cyan vertical lines, you can check the high and low limits. You can also select the search radius and the cell size, make the deterioration map transparent, check the calculated area for different amplitude values and add comments associated with the map. You can also export the deterioration map. This will export a compressed zip file that includes a png image with the map, but also a csv file with the amplitude values and their corresponding x y coordinates.