摘要
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邻域信息生成以三角形网格表示的曲面。
This paper deals with the problem of smoothing and modeling of range images obtained by using laser 3-D scanner. Heavy errors, existing in the range images, would entail many problems on post-processing. An automatic 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.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第12期1258-1261,共4页
Journal of Optoelectronics·Laser
关键词
距离像平滑
小波变换
激光三维扫描仪
建模
Computer simulation
Laser applications
Three dimensional
Topology
Triangulation
Wavelet transforms
