基于AutoCAD和3DSMAX的虚拟校园三维场景构建研究

Virtual Campus Based on AutoCAD and 3DS Max 3D Scene Building Research

摘要:

当前的虚拟校园三维场景构建方法是利用osgEarth获取GoogleEarth数据,构建虚拟校园三维地图,然后依据本地地形信息与三维场景模型完成对虚拟校园的三维场景构建；该方法在三维场景构建过程中没有考虑到校园后续建设发展,只凭现在所需进行三维场景构建,导致虚拟校园三维场景杂乱,存在虚拟校园三维场景构建顾虑不周的问题;为此,提出一种基于AutoCAD和3DSMAX的虚拟校园三维场景构建方法;该方法首先利用Kinect的RGB深度摄像头获取校园平面数据、影像数据和贴图资料,采用相机阵列合成算法对所得校园图像进行特征提取,然后依据非局部均值滤波方法对获取的校园图像进行去噪操作,最后利用边缘方向和梯度表示中的结构方向与强度,对校园图像外轮廓的纹理特征进行收敛,依据外轮廓纹理特征收敛实现校园图像内轮廓的准确定位,将校园图像与虚拟校园三维场景构建所需图像进行匹配,由此完成对虚拟校园三维场景的构建;实验结果证明,所提方法是虚拟校园三维场景构建领域革命性的突破,提高了学校的招生率,增加了校园文化历史的展现机会,为该领域的研究发展提供了有效依据。

Abstract:

The current method of building virtual campus 3 d scene is using osgEarth obtain GoogleEarth data, construct the virtual campus 3 d map, and then on the basis of the local terrain information and 3 d scene model to complete the 3 d scene building of virtual campus. The method in the process of building a 3 d scene without considering the construction of campus follow-up development, only by now needed to build three-dimensional scene, result in 3 d virtual campus scene clutter, there are 3 d virtual campus scene construction concerns the problem of bad. For this, put forward a kind of virtual campus based on AutoCAD and 3 ds Max method of establishing three-dimensional scene. This method is first used to access depth of RGB camera obtain campus planar data, image data and map data, USES the camera array synthesis algorithm on the campus image feature extraction, and then on the basis of the nonlocal average filtering method to obtain the campus image denoising operation, the use of edge direction and gradient structure in the direction and intensity, outside of the campus image contour texture characteristics of convergence, based on the outer contour convergence in the campus image texture feature contour of accurate positioning, the campus image and 3 d virtual campus scene to build the required image matching, thus complete the virtual campus construction of 3 d scene. The experimental results show that the proposed method is virtual campus building a revolutionary breakthrough in the field of 3 d scene, improved the school enrollment rate, increases the chances of the history of the campus culture show, provide the effective basis for the research and development in the field of.