Comparison of height estimation techniques.

<p>A single time stamp (27/09/2016) comparison of different methods of canopy height estimation for the 60 plot set of ten wheat varieties, two treatments and three replicates. The solid red line represents the heights estimated by the proposed automated method based on stereo images and derived depth maps. The dashed line depicts heights obtained by manual measurement, while the dotted line represents canopy heights estimated from images that have been calibrated using a more conventional approach that relies on additional reference data.