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A force-tactile generation method for rigid texture images based on five elements

A texture image and rigid technology, which is applied in image analysis, image data processing, instruments, etc., can solve the problem of not being able to perceive texture details, pixel force, touch, etc., and achieve the effect of improving realism

Inactive Publication Date: 2018-01-12
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

[0004] Although these methods can be used for force haptic rendering of rigid body texture images, these methods perceive the pixels of texture details in a way of shaking or vibration, and cannot perceive force haptics between texture detail pixels.

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  • A force-tactile generation method for rigid texture images based on five elements
  • A force-tactile generation method for rigid texture images based on five elements
  • A force-tactile generation method for rigid texture images based on five elements

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with drawings and embodiments.

[0032] Such as figure 1 As shown, the present invention first reads the rigid texture image, performs region grouping and pixel height value acquisition on the texture image, converts the texture image into a three-dimensional texture image, solves the surface normal vector of each grid of the texture image, and assigns different area groups Different physical properties (surface rigidity coefficient, surface sliding friction coefficient and surface damping coefficient), in the process of human-computer interaction, get the penetration depth of the interaction point and the moving speed of the agent point, solve and output the stability of different objects in the texture image And continuous force touch.

[0033] Such as figure 1 Shown, specifically the inventive method comprises:

[0034] 1) Perform region grouping and pixel height value acquisition on rigid textur...

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Abstract

The invention discloses a force-tactile generation method for a rigid texture image based on five elements, which is used for perceiving the rigid texture image. The texture image is grouped by region and the height value of the pixel point is obtained, and after being transformed into a three-dimensional texture image, different physical properties are assigned to different region groups, based on the penetration depth, surface normal vector, surface rigidity coefficient, surface sliding friction coefficient and These five elements, the surface damping coefficient, generate the force-haptic sensation of different objects in the texture image. Compared with previous methods, this method is innovative in that it constructs a triangular patch with texture details, which can perceive the subtle haptic sensation between texture detail pixels, output stable and continuous haptic sensation, and improve the authenticity of haptic sensation .

Description

technical field [0001] The present invention relates to the force-tactile generation of texture images, in particular to a force-tactile generation method for rigid texture images based on five elements, which combines the five elements of penetration depth, surface normal vector, surface rigidity coefficient, surface sliding friction coefficient and surface damping coefficient. The method solves and outputs stable and continuous haptic sensation, and belongs to the field of computer graphics and virtual reality haptic reproduction technology. Background technique [0002] Image information is mainly perceived through human vision. However, for vulnerable groups of blind people, it is difficult to see images through vision. Perception substitution has become an inevitable choice for blind people to perceive images. Blind people recognize images through force-touch or hearing instead of vision, and force-touch is the most important alternative way of visual perception. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T17/00
Inventor 杨文珍黄欣吴新丽
Owner ZHEJIANG SCI-TECH UNIV
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