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Tele-immersion teamwork device based on multi-camera acquisition

A remote immersion and collaborative work technology, applied in the field of virtual reality, can solve the problems of poor realism, poor accuracy, unreal 3D scenes, etc., to achieve the effect of expanding the field of vision

Inactive Publication Date: 2009-11-18
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first type of method has high accuracy, but the equipment is expensive and not easy to popularize. The second type of method drives the model through video, which has poor accuracy, and because both types use the model, the sense of reality is poor
Although the third category is real-person images, since human images are two-dimensional, they also have the disadvantage of being unreal when superimposed on a three-dimensional scene. Moreover, when people interact with remote nodes, their eyes are directed towards the display screen, so the camera cannot capture To the person's direct line of sight, which gives the impression that eye contact cannot be made

Method used

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Embodiment Construction

[0020] Such as figure 1 As shown, the device of the present invention is composed of three half mirrors 2, three cameras 3 and three displays 1. Three half-transparent mirrors 2 are fixed by a fixed mount 4 or fixed respectively by three fixed mounts, and the vertical side of the fixed mount 4 is adjacent to the display, and the half-transparent mirror 2 is placed on the inclined side, and each half-transparent The angle between the half mirror 2 and the display 1 is 45 degrees, and the angle between two adjacent displays 2 is α, where α is greater than 90 degrees, so the half mirror cannot be cut into a rectangle, assuming that the size of the display 1 is a*b (length × height), then the trapezoid cut by the half mirror 2 is an isosceles trapezoid, its upper base (longer end) is a, and the lower base (shorter end) is a -2b*cos(α / 2), the length of the two waists is 1.414b.

[0021] Such as figure 2 As shown, the present invention utilizes the half-mirror to collect the per...

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PUM

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Abstract

A tele-immersion teamwork device based on multi-camera acquisition is disclosed, comprising; three cameras, three displays arranged at an alpha angle and semitransparent semireflecting mirrors which are respectively positioned in front of each display at an angle of 45 degrees and which are used for changing light path; the three cameras are respectively fixed directly above the semitransparent semireflecting mirrors with lenses thereof facing vertically downwards, projection of the lenses in the semitransparent semireflecting mirrors is coincided with that of eyes of a user in the semitransparent semireflecting mirrors when the user faces directly towards the display; wherein, alpha is larger than 90 degrees; the three cameras receive the same external triggering signal sent by an external host, and collect synchronous real images in an identical scene is performed by collecting lights reflected by the semitransparent semireflecting mirrors. The invention can collect front sight line of human, bringing people the sense of eye contact; in addition, two-dimensional video can be enabled to be more realistic when being viewed in three-dimensional scene.

Description

technical field [0001] The invention relates to a remote immersion collaborative work device, which belongs to the field of virtual reality, and in particular to an immersion collaborative work device which uses multiple cameras to collect real images and fuses and displays them with a virtual environment. Background technique [0002] The meaning of remote immersion collaborative work is that participants from all over the world share a virtual space through network interconnection. They can roam freely, communicate with each other, and interact with the virtual environment. Therefore, a set of devices that can collect real person information and display it in fusion with the virtual scene is needed. According to the different methods of remote immersion and collaborative work, the devices used are also different, mainly because of the different collection devices. At present, it can be roughly divided into three categories. [0003] The first category, the marker method....

Claims

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Application Information

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IPC IPC(8): G03B35/08G06T1/00
Inventor 周忠赵沁平刘寒冰许成吴威
Owner BEIHANG UNIV
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