A force-tactile generation method for flexible texture images based on proton spring model

Abstract

The invention discloses a force haptic generation method of flexible texture image based on a mass-spring model. The method comprises the steps of grouping the flexible texture image by areas and acquiring pixel point height value to reconstruct and convert into a three-dimensional texture pattern; creating a deformation surface based on the mass-spring model; reconstructing the three-dimensional texture pattern; mapping the three-dimensional dimension texture pattern to the deformation surface; operating a force haptic interaction device to perform human-computer interaction to drive mass of a triangular grid on the deformation surface to move so as to obtain a triangular patch that an interaction contact of the force haptic interaction device is in impact with the texture pattern; solving to obtain the force haptics and the deformation of the deformation surface. According to the method, the deformation of the flexible texture image and realistic force haptics can be generated, so that the deformation of the flexible texture pattern can be achieved and the realistic force haptics can be generated; people can view the reasonable deformation of the flexible texture image and can also touch to feel the force haptic property of the flexible texture image; the limit of the traditional method that people cannot sense the flexible texture image can be broken.

Description

technical field [0001] The invention relates to a texture image force haptic method, in particular to a method for generating a flexible texture image force haptic sensation based on a proton spring model in the field of computer graphics and virtual reality force haptic reproduction technology, which realizes not only visually flexible The reasonable deformation of the texture image, and the haptic properties of the flexible texture image can be perceived in the sense of touch, breaking through the limitation that the previous methods cannot perceive the flexible texture image. Background technique [0002] According to the content of texture images, texture images can be roughly divided into rigid texture images and flexible texture images. Previous haptic generation methods are mainly used to perceive rigid texture images. Mercier established a mapping relationship between the brightness of four pixels and the three-dimensional height of the corresponding point, and reco...

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Problems solved by technology

[0003] Although these methods can be used for tactile rendering of texture images, they are all aimed at rigid body texture images. The 3D graphics obtained after 3D graphics of the images are fixed. In the process of interactive perception, the 3D texture graphics cannot be reasonably deformed and cannot perceive flexibility. Force-haptic properties of texture images, causing deviations from real-life flexible body texture perception

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