虚拟航天博物馆中展品真实性三维建模仿真

摘要

对虚拟航天博物馆中展品真实性三维建模的研究,能够有效提高航天展品的真实性.对展品真实性三维建模,需要对展品图像去噪,计算图像各点误差,完成展品真实性的三维建模.传统方法先获取展品图像特征点坐标,计算空间差值,但未考虑图像各点误差,导致建模精度低.提出基于自适应权值的虚拟航天博物馆中展品真实性三维建模方法.引入彩色相机内参数矩阵和深度相机参数矩阵,建立展品真实性三维坐标系,确定彩色相机与三维坐标的变换关系,对展品真实性进行标记,通过自适应权值函数,对展品图像进行去噪,自适应调节图像各点误差,完成展品真实性三维建模.实验结果证明,所提建模方法的实现过程较为简单,占用的计算机内存空间小,建模精度高.%This paper proposes a three-dimensional modeling method of authenticity of exhibits in virtual aviation museum based on self-adaptive weights.Firstly,the internal parameter matrix of color camera and parameter matrix of depth camera are introduced,then the three-dimensional coordinate system of authenticity of exhibits is established to determine the transformation relationship between color camera and three-dimensional coordinate.Moreover,the authenticity of exhibits is marked.Through self-adaptive weight function,the image of exhibits is denoised,and error of each point in image self-adaptively is adjusted.Thus,three-dimensional modeling of authenticity of exhibits is completed.Simulation results show that the implementation of proposed modeling method is simple.It needs small memory space.The modeling accuracy is high.