Fig. 2
From: PhenoTrack3D: an automatic high-throughput phenotyping pipeline to track maize organs over time
Extension of leaf tips on the 3D skeleton. A Binarization of the RGB image (inset) with Phenomenal [16], B Skeletonization of the binary image, and extraction of skeleton branches having an endpoint (blue lines), C 3D plant skeleton (inset) and reprojection of its branches in the 2D space (red lines). D 3D and 2D branches matching based on a distance threshold dsk = 30px, and determination of extension paths (green lines)