摘要
针对光栅结构光传感器三维测量过程中光条识别问题,提出一种新的金字塔子光栅投射法结构光编码方法。该方法把高密度光栅逐级细分为若干个可容易识别的子光栅,用空间二分编码方法分别对每个子光栅进行编码,并详细介绍了确定光条点码值的方法。把该编码方法应用于光栅结构光传感器中,实现了维纳斯雕像的三维测量,并给出了三维重建结果。结果表明,该编码方法误码率仅为0.75%,特别适用于物体三维轮廓致密测量。
Referring to the problem of light stripe recognition in 3D measurement using a grating structured light sensor, a new structured light coding method, namely pyramid sub-grating projecting method, is proposed. A high-density grating structured light pattern can be gradually subdivided into some legible sub-grating ones by this method. Each Of sub-grating patterns is encoded by the spatial dichotomy. The method of estimating codeword of a light stripe point is introduced in detail. This coding method is applied to grating structured light sensor, the surface of a statue of Venus is measured, and 3D reconstruction results are given. The experimental results show that the ratio of false codeword of the coding method is only 0.75 percent, and it specially adapts to 3D profile measurement in density.
出处
《光电工程》
CAS
CSCD
北大核心
2006年第7期78-82,共5页
Opto-Electronic Engineering
基金
国家自然科学基金(50375012)
关键词
光栅结构光
编码光栅
光传感器
三维轮廓测量
Grating structured light
Encode grating
Light sensor
3D profile measurement
