I've go a point cloud generated in the Pix4D software from about 90 aerial images. I am trying to measure piles of coal and have found that using the volume measuring tool on the point cloud model generated can be quite inaccurate. This is because of issues such as multiple outlying points appearing above a coal pile, which then introduces artifacts like spikes. This then leads to inaccurate volume measurement of such piles.
Is it therefore possible to use the DSM (how do we obtain in from within Pix4D?) to measure volume instead, as it has the effect of smoothing out such spikes and creates a homogeneous surface?