基于三维虚拟现实技术的图像重建方法研究
2020-09-21黄桂明莫字瑛
黄桂明 莫字瑛



摘 要: 由于传统图像重建方法获取到的重建图像比较模糊,为了提高重建图像的质量,提出基于三维虚拟现实技术的图像重建方法。在三维虚拟现实技术的基础上,根据相机的成像原理,计算相机光学部分可以识别的最大距离,通过计算场景画面的最小识别距离实现图像的降质分析;利用三维虚拟现实技术训练图像的检测样本,预测出样本图像的像素值,通过公式描述了图像的提取过程,完成了图像边缘信息的提取;最后在三维虚拟现实技術的基础上,构建了图像重建算法,实现了基于三维虚拟现实技术的图像重建。实验结果表明,基于三维虚拟现实技术的图像重建方法得到的重建图像质量较高。
关键词: 图像重建; 三维虚拟现实技术; 图像降质分析; 样本训练; 像素值预测; 信息提取
中图分类号: TN911.73?34; TP391 文献标识码: A 文章编号: 1004?373X(2020)17?0064?05
Abstract: The image reconstruction method based on 3D virtual reality technology is proposed to improve the quality of reconstructed image because the image reconstructed by traditional image reconstruction method is fuzzy. On the basis of 3D virtual reality technology, the maximum distance that the optical part of the camera can recognize is calculated according to the imaging principle of camera. The image degradation analysis is realized by calculating the minimum recognition distance of scene image. The detection sample of image is trained with 3D virtual reality technology to predict the pixel value of the sample image. The extraction process of image is described by means of the formula to fulfill the edge information extraction of the image. On the basis of 3D virtual reality technology, an image reconstruction algorithm is established and the image reconstruction is realized. The experimental results show that the quality of the reconstruction image obtained by the image reconstruction method based on 3D virtual reality technology is high.
Keywords: image reconstruction; 3D virtual reality technology; image degradation analysis; sample training; pixel value prediction; information extraction
0 引 言
人们生活的三维立体环境是由三维信息组成的,人类之所以可以感受到三维信息,是因为人的视觉系统具有感知图像整体深度的特性。图像作为三维场景的重要载体,反映了场景中画面在相机的成像效果[1]。根据三维虚拟现实技术,人们可以感知到场景画面的三维立体成像,从而使人们产生一种立体感。在三维虚拟现实技术的基础上,图像是获取场景画面结构的必要信息,在三维虚拟场景重建、三维虚拟现实等计算机视觉的应用中起到了非常关键的作用[2]。
在三维虚拟现实技术的基础上,图像的物理意义决定了它无法通过光学采集设备来获取,一般情况下都是通过计算机计算或者测量的方式得到[3]。……
