The Edition,Modification And Video Composition Of Visual Human Motion In The Simulation And Analysis System

In the past Simulation And Analysis Systems, we used two vidicons to take photographs of athlete's action, and got three-dimension data by composing two image serial. Afterward, we can analysis motion parameters, but, we still hope that coachs are able to modify parameters, and even they can use the mouse to do that expediently, then they can use the visual human to display it .Finally we compose visual human and athlete in one image together.Before ,we had a research on the Simulation And Analysis System. o By that we had signed the joint by hand; calculated the position of joint with Inverse Kinematics and pick-up the outline of motion human. In the thesis, I mainly improve the system and enhance its functions including the following three parts . Visual human animation: Because there is much deficiencies now. We want to reduce workload and improve precision of data .In the thesis, based on spline interpolation, I dispose the change of position and based on quartemion interpolation, I dispose the change of angle.The design and modification of visual human motion: when coachs want to modify action, he will modify the joint point by point. It makes the adjusted motion incoherence and irrelevance, neglecting the relation among frames. In the thesis, I bring forward two means (based on the comparability of oneself and based on the normal distribution). They can pick-up the characteristic information from the motion of the athlete; reduce the workload. video composition: Traditional method of image composition usually blurs the background of image .so the thesis discuss a new method-Newalpha. It not only keeps the background syllabify but also makes the composed image smoothness and natural. In addition, I research a video system to play the video slowly and display motion of different time on the same image.