一种虚实融合场景中的火焰交互研究

Study on Flame Interaction in Real-virtual Fusion

流固自然交互是图形学上的一个研究难题,在虚实融合场景中完成流固实时交互更是难上加难,为此探索基于Kinect的虚实融合场景中与火焰的真实自然的实时交互.首先,为模拟出真实跳动的火焰模型,在N-S方程求解过程中,引入柏林函数产生的随机数,创造随机风场,增强虚拟火焰的真实感;其次,为确保更加准确的手势识别,在建立的基于Kinect的虚实融合场景中,设计手势指令集及其相应算法,适配最佳灵敏度系数和控制系数,提高交互指令鲁棒性;最后,分析火焰与障碍物之间的单向耦合关系,建立两者间的耦合方程,保证交互细节真实自然流畅.多组火焰模拟及虚实融合场景中与火焰交互的实验对比和分析表明,人能够在虚实融合场景完成与火焰的交互.

The natural interaction between fluid and solid is a hot topic in graphics, and it is more difficult in fusion. For which we explore the natural and real-time interaction with flame in the fusion based on Kinect. First, in order to simulate the real beating flame model,we introduce the random number produced by Perlin Noise Function, creating random wind field to enhance the real sense of virtual flame. Secondly, to ensure a more accurate gesture recognition rate, in the fusion based on Kinect, we design a gesture set and corresponding algorithm, adapt the best sensitivity and control factor to improve the robustness of interactive instructions; Finally, analyse the coupling relationship between flame and obstacle and then establish equations to ensure the details of the interaction real, natural and smooth. The contrast and analysis of experiments on the flame simulation and interaction in the fusion show that we can interact with flame in the fusion.