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

An interactive device and tactile reproduction technology, applied in the input/output of user/computer interaction, the input/output process of data processing, and graphic reading, etc., can solve the problems of lack of realism, limited texture types, and inability to simulate texture touch sense, etc. problem, to achieve the effect of improving realism and stability

Active Publication Date: 2010-09-01
NANTONG MINGXIN CHEM +1
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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 mo...

Method used

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

Examples

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Embodiment Construction

[0090] A force-tactile reproduction system of stone image texture based on DELTA hand controller,

[0091]The operating platform of this example is Windows 2000, the development language is VC++6.0, and it is based on the OpenGL graphics library. The force / tactile interaction device is a 6-DOF DELTA hand controller, and its working space range is translation Φ360mm×L300mm and rotation ±20deg / axis, which can realize force tactile feedback along the X, Y, and Z axes, through the DELTA hand controller The handle at the end can touch, sense and control the virtual ball sliding on the virtual stone texture surface, and feedback the texture force tactile information generated during the interaction to the operator in real time,

[0092] The haptic reproduction system includes:

[0093] Step 1. For externally imported stone texture pictures (such as Figure 12 As shown in a) after preservation,

[0094] Step 2: The system performs image processing on the called stone texture pictu...

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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 ...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06F3/041
Inventor 宋爱国程盈盈吴涓张小瑞
Owner NANTONG MINGXIN CHEM
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