Hair Shape Modeling from Video Captured Images and CT Data

We propose a three-dimensional (3D) reconstruction method of human hair-shape from rotating head multiple video captured images and CT data. It is well known that no hair is present on the polygonal skin surface of the human head (3D-head) reconstructed from CT or MRI data. Our task is to reconstruct and add the hairshape on the 3D-head to create a realistic human head model for simulating post-surgical facial expressions. Using a sculpturing technique based upon rotating head images we propose a method of reconstructing the hairshape with the help of 3D-head. 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-head as the 3D polygonal surface obtained from solid-head including the residue-sculptured hair-voxels on it. Experimentally we have shown that our method can successfully reconstruct the concave and semi-occluded regions in the skin-hair junction regions, which is not easy to reconstruct by the conventional way.