Effects Of Visual And Physical Feedback On Interactions In Virtual Reality

With the advent of 5G era,virtual reality has gradually become a hot topic in various fields due to its visualization characteristics.Virtual reality is a new application technology.One of its main features is interactivity.Users can get the necessary sensory feedback through virtual reality devices to interact with the virtual environment.Therefore,focusing on the research of the influencing factors of the interaction in virtual reality is of great help to improve the interaction performance of virtual reality and enhance users' sense of immersion.The main contents of this study include three aspects: First,references,to discuss the research status of virtual reality interaction technology;Secondly,design the experimental paradigm of the whole experiment and realize the virtual scene.Third,the grasping motion of the virtual hand in virtual reality was experimentally studied,and the time and spatial kinematics variables of the grasping motion of the right thumb and the index finger were measured respectively,to explore the authenticity of the virtual hand grasping motion compared with the actual environment interaction,and to explore the impact of visual and physical feedback on the interaction in virtual reality.To be specific,firstly,the concept,characteristics and main types of virtual reality are summarized through literature analysis,and the current research status of virtual reality interaction is discussed.Secondly,the experimental paradigm is designed to restore the actual experimental environment in the virtual scene.Finally,the differences of relevant behavior characteristics in virtual reality are discussed when the virtual hand is controlled to grasp.Firstly,10 subjects were recruited to conduct the research on hand grasping movement in experiment 1 to explore the influence of visual feedback on virtual reality interaction.And then ten more subjects were recruited to study the hand motion of experiment 2 to explore the interaction effect of physical feedback on virtual reality.The results of this study are as follows:1)Compared with the actual environment,in virtual reality,the grasping motion characteristics of the virtual hand are similar to the actual environment.Themaximum hand aperture of the virtual hand is the largest without visual feedback,and the time to reach the maximum hand aperture is also the earliest.2)No significant difference was found through the comparison of wrist speed in the virtual hand grasping movement in the virtual environment,and no significant difference was found in the time when the wrist reached the peak speed.3)In virtual environment,visual and physical feedback will have a significant impact on the interaction in virtual reality.In this paper,compared with the actual hand grasping movement,we explore the differences of relevant behavior characteristics in virtual reality by controlling virtual hand grasping movement,and then deeply explore the interaction effect of visual feedback and physical feedback on virtual reality.This research has a positive significance for the design of experimental paradigm to explore the influencing factors of virtual reality interaction.At the same time,it also has a positive significance for improving the virtual reality interaction mode,enhancing the sense of virtual avatar agent,and enhancing the sense of virtual reality immersion.It also lays a foundation for the research of hand grasping movement in the field of sports rehabilitation treatment based on virtual reality technology to help hand sports rehabilitation Theoretical basis.