Abstract
In recent years, the study of motion synthesis of articulated figures has played an important role. For example, there are many movies and computer games using synthesized virtual characters. Therefore, how to create realistic motions for virtual characters becomes an important research topic. This thesis presents a new method to synthesize desired motions based on given motions plus some geometric constraints. Our method uses Inverse Kinematics (IK) to compute the angles of articulated figure’s joints. We synthesize the motion by per-frame method. The basic idea of our method is to compute the displacement base on the given motion and the constraints. We introduce Proportional Derivative Controller (or known as PD-Controller) to simulates motion qualities for the new motion. Our method combines both kinematics and dynamics methods, and allows users to set their constraints on end-effectors such as hands and feet. Empirical examples are given to demonstrate that the proposed system can automatically synthesizes the desired motion with given geometric constraints.