Motion Simulation of 3D Virtual Human Model Based on Dual Quaternion Blending Skinning

Skinning algorithms are widely used in 3D virtual human motion simulation, such as the linear blending skinning (LBS) algorithm, etc. However, the application of these algorithms can cause skin collapsion or contortion, which are considered as severe distortion problems. The algorithm principle of LBS is introduced and its imperfections are analyzed firstly. Then a novel dual quaternions blending skinning (DQBS) algorithm is proposed in this paper so as to prevent the occurring of the distortions. The follow chart of the DQBS is put forward too. Finally, the performance of LBS and DQBS algorithms are compared through a simulation experiment of virtual human motion. The results clearly demonstrate that the DQBS algorithm can significantly reduce the distortion encountered compared to LBS, which means that it’s a more accurate and reliable skin deformation algorithm for 3D virtual human modeling.