基于区域调制相移模板的高精度三维结构光重建  

High-precision reconstruction of 3D structured light based on regional modulation phase shift template

作　　者：张韶越 何志成 尚继辉 陈曾沁 ZHANG Shaoyue;HE Zhicheng;SHANG Jihui;CHEN Zengqin

机构地区：[1]航天智造(上海)科技有限责任公司

出　　处：《现代机械》2019年第6期40-45,共6页Modern Machinery

基　　金：上海市人工智能创新发展专项“线结构光多用途三维传感器研发项目”(2017-RGZN-01007)

摘　　要：提出了一种新的区域调制相移二值化三维结构光重建方法。首先,引入散焦三角二值模式,在不进行伽玛校正的情况下获得高质量的正弦条纹。然后,采用改进的包含平均强度图像的三步移相算法得到包裹相位和目标掩模。在此基础上,采用多频法得到了展开相位。最后,采用两步匹配方法得到相应的匹配点。实验表明,该方法比以前的方法更精确、有效。In this paper,a new method for the reconstruction of three-dimensional structured light based on regional modulation phase shift binarization was proposed.Firstly,the defocusing triangular binary mode was introduced to obtain high-quality sinusoidal stripes without gamma correction.Then,an improved three-step phase-shifting algorithm including average intensity image was used to obtain the wrapped phase and the target mask.On this basis,the unwrapped phase was obtained by multi-frequency method.Finally,two-step matching method was used to obtain the corresponding matching points.Experiments showed that this method was more accurate and effective than previous methods.

关 键 词：三维测量 三角二值模板 区域调制 相位展开 高斯平滑 

分 类 号：TH721[机械工程—仪器科学与技术]