Image texture haptic representation system based on force/haptic interaction equipment

Abstract

The invention discloses an image texture tactile representation system based on force / haptic interaction equipment for virtual reality human-computer interaction, which is characterized in that when the virtual proxy of the force / haptic interaction equipment slides on a texture surface of a virtual object in a virtual environment, the surface height of the object texture corresponding to the contact point and a coefficient of kinetic friction for reflecting the rough degree of the contact point are firstly obtained on the basis of an image processing method, a continuous normal contact force model reflecting the concave-convex degree of the contact point and a tangential friction model reflecting the rough degree of the contact point are respectively established, and finally the texture contact force is fed back to an operator in real time through the force / haptic interaction equipment so as to realize the force haptic express and reappear when fingers slide over the surface texture of the virtual object. The feedback continuous change normal force not only enables the human-computer interaction to be more real, but also enables an interaction system to be more stable, and the feedback friction related to the rough degree of the contact point also further enhances the sense of reality when the texture reappears.

Description

technical field [0001] The invention relates to an enhanced force tactile model, in particular to a force tactile reproduction system based on the image texture of force / tactile interaction equipment for virtual reality human-computer interaction. Background technique [0002] Tactile interaction is the latest technology in the field of human-computer interaction. Texture haptics, as an important part of tactile interaction, has attracted more and more researchers' attention and attention. In virtual reality systems, texture haptics can not only enhance the realism of tactile interaction, but also help remote control or mechanical design in virtual space, and blind people to obtain image information. [0003] At present, there are mainly three modeling methods for texture tactile reproduction: ①Realize tactile texture reproduction based on real texture. By constructing a real textured surface to simulate the texture space information of virtual objects, the tactile texture ...

AI Technical Summary

Problems solved by technology

This method can better reflect the characteristics of the texture to a certain extent, but the types of textures that can be expressed by the deterministic model are limited, and it can only make the force feel clearly distinguishable, but it lacks the sense of reality and cannot simulate the real texture contact feeling.

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