激光三维扫描仪距离像的平滑和建模

采用激光三维扫描仪对物体表面进行测量时，得到的距离像中通常含有较大的误差。本文采用小波变换的多分辨率特性，给出了一种自动距离像平滑方法，处理后的结果很好地保留了原始距离像中细节部分的信息。本文还给出了一种快速的结构化距离像建模方法，直接利用距离像数据点之间存在的领域信息生成以三角形网络表示的曲面。实验结果表明了本文提出的方法的有效性。

Smoothing and Modeling of Laser 3D Scanner Range Images

This paper deals with the problem of smoothing and modeling of range images obtained using laser 3 D scanner.Heavy errors,existing in the range images,would entail many problems on post processing.An automaitc method,based on multiresolution wavelet analysis,for range image smoothing is proposed.The smoothed range image retains original details.A structured modeling method for range images is also introduced,which makes use of the topology information provided by the range images,and a triangle mesh is used to approximate the object surface.Examples show the efficiency of our methods.