Realistic 3D head modeling from video captured images and CT data

The absence of hair on the polygonal skin surface of the human head (3D-head) reconstructed from CT or MRI data fails to provide complete visual information, especially in expressive face simulation. The authors propose a method to reconstruct and add the hair shape on the 3D-head to create a realistic 3D head model for simulating post-surgical facial expressions. Using a sculpturing technique based upon rotating head images, we propose a method of reconstructing the hair shape as well as the concave and semi-occluded parts in the skin-hair junction regions. We have utilized binarized voxel data of the 3D-head (solid-head) in this regard. The sculpturing object in our definition is the solid-head surrounded by assumed thick hair-voxels. We sculpture the surrounding hair-voxels according to the extracted hair-region from the video captured images while keeping the internal solid-head intact. We reconstruct the concave and semi-occluded regions by digging up to the visible skin surface of the solid-head in/near the hair region. We define complete-model as the 3D polygonal surface obtained from solid-head, including the residue sculptured hair-voxels on it. Experimentally, we have shown that our method yields hair shape to be used in practice.