基于VRML的虚拟交互系统触摸感知控制仿真研究  

Simulation Research on Touch Perception Control of Virtual Interactive system based on VRML

作　　者：曾宇[1] 朱然[1] ZENG Yu;ZHU Ran(Chengdu University,Chengdu Sichuan 610106,China)

机构地区：[1]成都大学,四川成都610106

出　　处：《计算机仿真》2020年第3期193-197,共5页Computer Simulation

基　　金：四川省教育厅项目(15ZB0391);成都大学校基金项目(20805202)。

摘　　要：针对虚拟交互系统触摸感知控制过程中图像存在噪声干扰,导致触摸感知效果下降的问题,提出了基于VRML的虚拟交互系统触摸感知控制方法。将初始的三维立体空间图像转换为二维平面空间图像,将不间断的图像加以变换,得到离散型的数据,通过图像中不同像素点的平均值来取代该点的灰度值,得到无噪声数字图像。针对图像中任意像素点,对其边缘点进行检测,完成边缘图像细节信息识别获取。在上述基础上,对目标图像进行轮廓提取,采用改进后的归一化傅里叶描述子对经过去噪处理的图像进行三维识别,利用VRML重建识别结果,实现虚拟交互系统触摸感知。通过具体的仿真数据充分验证了所提方法的综合有效性。Noise interference in image of virtual interactive system during the touch perception control leads to the decrease of touch perception effect.Therefore,a method of touch perception control for virtual interactive system based on virtual reality modeling language(VRML)was proposed.At first,the initial three-dimensional spatial image was transformed into two-dimensional plane spatial image,and then the images were transformed without a break to find the discrete data.The gray value of the point was replaced by average value of different pixel points in image,so that noiseless digital image was obtained.For any pixel point in image,the edge point was detected and the edge image details were identified.On this basis,the contour of target image was extracted,and the improved normalized Fourier descriptor was used to perform three-dimensional recognition on the denoised image.Moreover,the recognition result was reconstructed by VRML,and thus the touch perception of virtual interactive system was realized.Sim?ulation data prove comprehensive effectiveness of the proposed method.

关 键 词：虚拟现实建模语言 虚拟交互系统 触摸感知 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]