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Method for detecting and responding false-true collision based on augmented reality

A technology of collision detection and augmented reality, applied in the field of augmented reality virtual reality collision technology, can solve problems that are difficult to extend to 3D environments, achieve low complexity, save hardware overhead, and reduce the amount of calculation

Inactive Publication Date: 2011-09-21
SHANGHAI UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even the research results of virtual-real collisions are only for two-dimensional situations, and it is difficult to extend to three-dimensional environments

Method used

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  • Method for detecting and responding false-true collision based on augmented reality
  • Method for detecting and responding false-true collision based on augmented reality
  • Method for detecting and responding false-true collision based on augmented reality

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Embodiment Construction

[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] A specific preferred embodiment of the present invention, such as figure 1 As shown, the above-mentioned augmented reality-based virtual-real collision detection and response method includes the following steps:

[0029] ①. Obtain the data of the actual object in real time for preprocessing to obtain the feature points of the actual object;

[0030] ②. Pose estimation and motion estimation of actual objects;

[0031] ③. The collision detection process of virtual and real objects on the opposite side of the ball;

[0032] ④. The collision response process of virtual and real balls facing each other;

[0033] ⑤. Rendering output.

[0034] The above step ① requires that the data captured by the monocular camera be obtained in real time for processing, such as figure 2 As shown, the specific steps are as follows:

[0035] (1) Obtain t...

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Abstract

The invention discloses a method for detecting and responding false-true collision based on augmented reality, which comprises the following steps: 1) preprocessing an actual object acquired by a camera; 2) performing posture estimation and motion estimation on the actual object; 3) performing the false-true collision detection according to a position relationship between a mass center of a virtual object and a collision plane; 4) responding to the false-true collision according to a detection result; and 5) modifying an virtual image, rendering and outputting the virtual image. According to the method, a relative true three-dimensional false-true collision response effect can be achieved by using the three-dimensional collision detection method for only calculating four characteristic points of the actual object. The calculation complexity is low. The monocular vision three-dimensional false-true collision detection and response are realized.

Description

technical field [0001] The invention relates to an augmented reality virtual-real collision technology, in particular to a method for collision detection and response of a virtual object of any shape to an actual object based on the monocular vision of the augmented reality application. Background technique [0002] As people's requirements for interactive experience continue to increase, augmented reality (Augmented Reality, AR) applications have developed rapidly. The vision-based AR system has become the mainstream of applications because of its low hardware requirements. In augmented reality systems and applications, real objects interact with virtual objects, and the problem of virtual-real collision is unavoidable. Accurate virtual-real collision detection and response can make AR applications more natural and real, thus making free virtual-real human-computer interaction possible. Early AR systems generally used markers to help register positioning. Marker-free AR ...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T15/00
Inventor 陈明凌晨张文俊
Owner SHANGHAI UNIV
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