摘要
结构光动态三维测量能够实现运动或者变形物体型面重构。将6色3次伪随机条纹序列的色彩信息溶入亮度呈余弦周期性变化的数字栅线图中,构成彩色栅线空域编码图案。图像解码采用仿视觉过程。在直觉处理阶段,通过亮度峰值与对应的色彩信息来实现周期划分;在专注处理阶段,通过局部亮度变化关系来进行空域解相。实验结果证明,测量系统只需投影单幅图案即可实现物体形貌的三维重构,可满足动态测量的要求,结合亚像素匹配可保证一定的测量精度,能形成多分辨率测量。
Dynamic 3D measurement of structured light can realize the reconstruction of surface of objects of move or deform.The color information of pseudo random stripes sequence in three order with six hues is added into the digital grating which intensity varies as cosine in periods,forming space coding pattern of color grating.The image decoding simulates the process of human vision.In the intuition section the periods are divided based on the intensity peak and the correspond color,in the focus section the phase...
出处
《光学技术》
CAS
CSCD
北大核心
2009年第4期569-574,共6页
Optical Technique
关键词
结构光三维测量
伪随机序列
彩色栅线
空域解相
3D measurement of structured light
pseudo random sequence
color grating
space phase demodulation
