Research And Implementation Of Collada Animation Data Based Motion Synthesis Method

With the rapid development of virtual reality technology,computer animation has occupied an important position in various fields of our lives,animations estabished by human motions have a lot of market demand.In recent years,methods of buliding human motions are becoming mature,such as motion capture and some 3D modeling tools,they can access and edit human motion data.But the amount of motion data obtained by manual work is limited,and the cost is large.Therefore,how to reuse the motion data efficiently has great research significance.Motion synthesis is a commonly used motion data reuse method,in this paper,motion synthesis is deeply studied.In this paper,Collada file format is analyzed firstly,and the performance of human motion in the Collada animation data is determined.Based on the logic of human motion and Collada animation data,the concept of motion template is defined,combine motion template with the distance of motion data,the paper designs a motion.similarity measurement algorithm based on logic and numerical value.In this way,when the similarity of two motion is measured,both logical similarity and numerical similarity are considered,and the accuracy can be ensured.Before the motion synthesis,the characteristics can be obtained by the result of motion similarity measurement.Then this paper proposes two methods of synthesis fragments selection,based on the difference between the motion similarities.In this paper,a variety of motion synthesis based on interpolation is studied and compared,and this paper chooses the most suitable interpolation method in different situation to improve the effect.The motion similarity measurement algorithm proposed in this paper is compared with other algorithms based on numerical similarity,it has the advantage of measuring the logical similarity.And the motion synthesis algorithm designed in this paper is compared with the algorithms based on direct interpolation,it is more detailed in synthesis segment selection and detail synthesis.The mainly aspects are synthetic effect,transition smoothness.The method in this paper shows certain advantages through the analysis and comparison of the real data.