基于三目立体的场馆数字再现增强现实技术

Augmented Reality Technology of Venue Digital Reproduction Based on Three-Dimensional Vision

针对场馆数字增强现实后出现的虚拟图像模糊不清问题,提出了一种基于三目立体的场馆数字再现增强现实技术,首先通过多尺度边缘提取算法获得场馆边缘特征,再使用互能量交叉算法对部分特征噪声抑制,之后利用三目立体匹配算法对残余噪声清除,并使用算法中的三目极线约束与梯度方向约束,对场馆进行极线匹配,得到场馆的三维立体线条,之后使用扫描仪收集场馆的三维点云数据,同时使用Gemagic与3DMax软件进行处理,进而得到完整的场馆三维立体模型,最后录制增强现实虚拟解析人物模型、声音解锁和文字介绍,并将其融合到三维立体模型中,进而完成对场馆数字的增强现实。以体育场馆为例进行仿真,结果表明,所提方法构建的虚拟场馆具有图像清晰、帧率高的优点。

In this paper, a technology of augmented reality for digital reconstruction of stadiums and gymnasiums based on triad stereo was presented. Firstly, the edge features of stadiums and gymnasiums were obtained by a multi-scale edge extraction algorithm, and then some feature noise was suppressed by mutual energy combination algorithm. Secondly, the residual noise was eliminated by the trinocular stereo matching algorithm. The trinocular epipolar constraint and gradient constraint in the algorithm were used to match the polar lines of stadiums and gymnasiums and thus to get the 3D solid lines of stadiums and gymnasiums. And then, the scanner was used to collect the three-dimensional point cloud data. Meanwhile, Gemagic and 3DMax were used to process the data. After that, a complete 3D model was built. Finally, the virtual analytical person model, voice unlocking and introduction in augmented reality were recorded and integrated into the 3D model. Thus, the digital augmented reality for stadiums and gymnasiums was completed. The stadiums and gymnasiums were taken as an example in this paper, the experimental results show that the virtual stadium and gymnasium constructed by the proposed method have the advantages of clear image and high frame rate.