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Method and device for generating feedback force

A technology of feedback force and objects, applied in the field of virtual reality, can solve problems such as slow response speed and insufficient realism

Active Publication Date: 2019-04-05
BEIJING UNIDRAW VR TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a method and device for generating feedback force, which are used to solve the problems of insufficient realism and slow response speed in the simulation process of the prior art

Method used

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  • Method and device for generating feedback force
  • Method and device for generating feedback force

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] figure 1 A schematic flow chart of Embodiment 1 of the method for generating feedback force provided by the present invention, as shown in figure 1 As shown, the method includes:

[0049] S101. Establish an object ocball tree model corresponding to the virtual object according to the triangular mesh model of the object.

[0050] Among them, the object octoball tree model is composed of object balls with a preset number of layers, the outermost object ...

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Abstract

The invention provides a method and a device for generating feedback forces. The method comprises: establishing an object octree spherical model corresponding to a virtual object, and a graphical tool octree spherical model corresponding to a graphical tool, using the object octree spherical model and the graphical tool octree spherical model to detect collision between the virtual object and the graphical tool, based on a collision detection result, optimizing pose of the graphical tool, and generating a feedback force. The method can rapidly and accurately detect collision information between the virtual object and the graphical tool, and makes generation effect of the feedback force lifelike and real-time with delay.

Description

technical field [0001] The invention relates to virtual reality technology, in particular to a method and device for generating feedback force. Background technique [0002] With the advancement of tactile interaction technology and computer technology, tactile information is being gradually introduced into the virtual reality system, so that the operator can feel the force and movement between the virtual objects when operating the virtual objects in the virtual environment, and experience the Manipulate haptic perception effects of real objects. This technology can be applied in many fields such as medical treatment, spaceflight, commerce and education. [0003] In the prior art, taking the dental pre-clinical training process as an example, in the dental pre-clinical training process, first use computer tomography (Computed Tomography, CT for short) and other data to reconstruct the geometric model of the human body or a certain organ in the computer , and then use virt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01
CPCG06F3/016
Inventor 郝爱民王党校孔逸飞史有皎赵晓含
Owner BEIJING UNIDRAW VR TECH RES INST CO LTD
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