Fig. 8

Stages of image processing and 3D reconstruction for dragonfly eye beads. From top to bottom: original photographs of the beads (SC-1, S-2, SC-4, and SC-5); the corresponding CT images; segmented images of eye regions; 3D surface reconstructions using MarchingCubes; and 3D volume reconstructions using RayCastMapper. This sequence illustrates the progression from raw images to advanced 3D models, highlighting the differences in detail capture between the two reconstruction techniques