Study on acquisition and generation of realistic hair 3D mesh

In recently years, while photorealistic human representation techniques have evolved in the fields of VR and MR, the realism of human hair remains a challenge. Although there are various methods for hair generation in CG model creation, they involve high production costs, and there is a need to develop practical and efficient approaches. In this study, we propose a simple method for automatically generating realistic hair mesh models based on point cloud data obtained from scans of actual human heads. It is assumed that the scan uses a structural light projection technique that can measure detailed irregularities under natural light. The hair mesh model is generated by performing polygon construction considering the features of the hair. The process of creating a mesh for the entire hair is carried out in two steps. First, a base mesh representing the features of the hair is constructed, and then an extended mesh with adjusted hair volume is constructed. The experimental results confirm that the proposed method can generate a voluminous and realistic mesh with the characteristics of the unevenness of hair.