Fig. 3
From: A high-throughput stereo-imaging system for quantifying rape leaf traits during the seedling stage
The schematic diagram for three-dimensional reconstruction based on Delaunay triangulations. a The three-dimensional scatter plot for oilseed rape canopy leaf (take an oilseed rape with four leaves, for example). Color differences in point cloud represents different rape leaf. b The reconstructed oilseed leaf [the rectangular area in image (a)] based on Delaunay triangulations. Color differences in smooth triangular mesh reflect the depth information in different leaf region. c The left part is the smooth 3D triangular mesh, which is projected to xy plane. The triangular patches image in the lower-right corner shows the local details in the red rectangle. The right part is the illustration for left oilseed rape leaf in three-dimensional space. d The final result for Delaunay triangulations reconstruction in canopy level. Color differences in smooth triangular mesh reflect the depth information in different leaf region