基于触觉反馈的视觉手虚拟现实交互技术

Visual Hand Virtual Reality Interaction Technology Based on Hap tic Feedback

为提高视觉手虚拟现实交互的效率与精度,引入触觉反馈技术,设计一种针对视觉手的虚拟现实交互技术。首先,利用底层视觉效应进行单元图像在指定范围内的归一化处理,提取多视点手姿态特征;其次,引入触觉反馈技术,根据手势缺陷示意图,利用感知理论提取不同手势下的感知信息;再次,利用矩阵不变效应定义触觉反应单元的阶级矩阵,并检测手势缺陷与指尖空间位置;最后,应用SolidWorks三维建模软件建立视觉手三维实体模型,使用一系列约束、装配语句进行视觉手位姿动作的虚拟现实空间匹配。设计对比实验,证明设计的视觉手虚拟现实交互技术可以缩短界面感知手势所需的时间,提高虚拟现实交互行为的精度。

In order to improve the efficiency and accuracy of the virtual reality interaction of the visual hand,the haptic feedback technology is introduced,and a virtual reality interaction technology for the visual hand is designed.Firstly,introduce the underlying visual effects,carry out the normalization processing of the unit image within the specified range,and extract the multi-viewpoint hand posture features.Secondly,introduce haptic feedback technology,according to the schematic diagram of gesture defects,use perception theory to extract perceptual information under different gestures.Thirdly,using the matrix invariance effect,the class matrix of the tactile response unit is defined,and the gesture defect and the spatial position of the fingertip are detected on this basis.Finally,SolidWorks 3D modeling software is applied to establish a 3D solid model of the visual hand,and a series of constraints and assembly statements are used to match the virtual reality space of the visual hand posture action.Design comparison experiments,through experiments to prove that the design of visual hand virtual reality interaction technology,can achieve the reduction of the interface perception of gestures required time,on the basis of improving the accuracy of virtual reality interaction behavior.