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A method for realizing three-dimensional data volume rendering of air display and virtual interaction

A technology of three-dimensional data and virtual interaction, which is applied in the field of virtual display and medical image rendering, can solve the problems of limited observation and inconvenient operation, and achieve the effects of low cost, increased fun, simple operation and algorithm

Active Publication Date: 2019-01-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the technical problems in the prior art that observers need to use observation tools to observe images, resulting in limited observation and inconvenient operation due to contact-based interaction.

Method used

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  • A method for realizing three-dimensional data volume rendering of air display and virtual interaction
  • A method for realizing three-dimensional data volume rendering of air display and virtual interaction
  • A method for realizing three-dimensional data volume rendering of air display and virtual interaction

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Embodiment 1

[0032] like figure 1 As shown, the three-dimensional data volume rendering aerial display and gesture interaction system based on the aerial imaging glass plate and the somatosensory sensor of the embodiment of the present invention includes the following steps:

[0033] (1) Use C++ programming language to design a 3D data volume rendering program. To load the 3D data into the computer memory, first create a continuous array whose size is the number of voxels in the 3D data, and store the value of each voxel in the array;

[0034] (2) Determine the position and size of the displayed image on the display. The default display window is parallel to the x, y coordinate system of the 3D data itself. Therefore, each pixel on the screen corresponds to a column of voxels in the 3D data, that is, volumes with different z The weighted superposition of the gray value of the pixel will be used as the gray value of the corresponding pixel on the screen;

[0035] (3) Establish a black box...

Embodiment 2

[0049] A method for rendering a three-dimensional data volume displayed in the air, comprising the following steps:

[0050] (1) The gray value after the weighted superposition of the gray value of the three-dimensional data voxel of the image is used as the pixel value during imaging to display the three-dimensional image;

[0051] (2) the three-dimensional image mirror image described in step (1) is extended on the display screen 3;

[0052] (3) display screen 3 described in step (2) is placed in dark box 1, wherein one side opening 4 of described dark box 1, the image on the display screen 3 is opposite to described opening 4; Placed at the opening 4 of the dark box; the sides of the dark box 1 are not reflective except one side of the opening;

[0053] (4) The image on the display screen is reflected by the aerial imaging glass plate 2, and image development 5 after focusing in the air; The included angle between the imaging glass plates 2 is the same, which is 25°-65°, ...

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Abstract

The invention discloses a method for realizing three-dimensional data volume rendering of air display and virtual interaction, belonging to the field of virtual display and medical image rendering. The method comprises the following steps: a three-dimensional image image onto a display screen is extended; a display screen is placed in a dark box, and an aerial imaging glass plate is placed at an opening of the dark box; the image on the display screen is reflected by an aerial imaging glass plate, and is focused in the air and developed. When virtual interaction is needed, the human gesture information is obtained by the sensor, and the gesture information is mapped to the spatial translation amount, and the rotation amount or zoom multiple to transform the three-dimensional data, so as toobtain the interactive image focused in the air. The invention can display the three-dimensional data in the air, does not depend on any display carrier, and further improves the interactive interestthrough the non-contact interaction of the gesture. This method has the advantages of good imaging effect, flexible interaction mode and little restriction to the observer.

Description

technical field [0001] The invention belongs to the field of virtual display and medical image rendering, and more particularly relates to a three-dimensional data volume rendering method based on aerial display and virtual interaction. Background technique [0002] Three-dimensional medical image rendering is an important content in the medical field. It is composed of a series of regularly arranged voxels, and the value of each voxel represents the color of the voxel. Therefore, the basic information of its data is the direction of length, width, and height. The number of voxels and the value of each voxel. For doctors, they are more concerned about the objects presented by the three-dimensional data, so each voxel is given a certain degree of transparency, so that when the doctor observes the three-dimensional data at a certain angle, he can see objects within a certain depth instead of just seeing To the surface layer, so that more information can be obtained intuitivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06F3/01G06T19/00
CPCG06F3/017G06T17/00G06T19/003
Inventor 侯文广桂秋玲张思源徐泽楷
Owner HUAZHONG UNIV OF SCI & TECH
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