The qualitative instance segmentation comparison on the three species. (a) The tobacco plant and (b) the tomato plant; (c) the sorghum plant. PlantNet and ASIS are compared with our PSegNet. Note that the different rendered colors in this figure are just for better visual effect, and the colors are not associated with the instance labels. The parts with segmentation errors are highlighted by red dotted circles, respectively. PlantNet and ASIS both have multiple prediction errors around the boundaries of leaf instances.