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| 三原色格雷码结合梯形相移三维测量方法 | |
| 引用本文： | 饶勇,王洋,于双,吴海滨,于晓洋,陈德运.三原色格雷码结合梯形相移三维测量方法[J].哈尔滨理工大学学报,2011,16(3):77-81. |
| 作者姓名： | 饶勇 王洋 于双 吴海滨 于晓洋 陈德运 |
| 作者单位： | 1. 总装备部重庆军代局,重庆,400054 2. 哈尔滨理工大学测控技术与仪器黑龙江省高校重点实验室,黑龙江哈尔滨,150080 3. 哈尔滨理工大学计算机科学与技术学院,黑龙江哈尔滨,150080 |
| 基金项目： | 国家自然科学基金(61071051)；黑龙江省自然科学基金(F201020)；黑龙江省教育厅计划项目(11551102)；哈尔滨理工大学优秀学科带头人支持计划项目 |
| 摘 要： | 针对结构光测量系统中采用的格雷码结合正弦相移方法的解包裹效率较低以及求解相位时间较长的问题,提出一种三原色格雷码结合梯形相移的编码方法.采用三原色(红、绿、蓝)格雷码结构光得到强度比周期,再通过梯形相移技术得到强度比主值0～6],将三原色格雷码与梯形相移相结合得到绝对强度比.仿真结果表明,采用三原色格雷码与梯形相移相... |
| 关 键 词： | 结构光 三维测量 强度比 梯形相移 |
3D Measurement Method by Combining RGB Gray Code with Trapezoidal Phase-shifting |
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| RAO Yong,WANG Yang,YU Shuang,WU Hai-bin,YU Xiao-yang,CHEN De-yun.3D Measurement Method by Combining RGB Gray Code with Trapezoidal Phase-shifting[J].Journal of Harbin University of Science and Technology,2011,16(3):77-81. | |
| Authors: | RAO Yong WANG Yang YU Shuang WU Hai-bin YU Xiao-yang CHEN De-yun |
| Affiliation: | 1.Chongqing Military Delegate Bureau,Chongqing 400054,China;2.Higher Educational Key Laboratory for Measuring &Control Technology and Instrumentation of Heilongjiang Province,Harbin University of Science and Technology,Harbin 150080,China;3.Shool of Computer Science and Technology,Harbin University of Science and Technology,Harbin 150080,China) |
| Abstract: | There are two problems concerning gray code with sinusoidal phase shift method which is used in structured light measurement system： unwrapping efficient is less and the time of solving phase is longer.In order to solve these two problems,an encoding scheme by combing RGB gray code with trapezoidal phase-shifting is proposed.The cycles of intensity ratios are got by RGB gray code structured light,then intensity ratio can be got by trapezoidal phase-shifting technique,and the range of intensity ratio is from 0 to 6.Absolute intensity ratio can be got by combining RGB gray code with trapezoidal phase-shifting.Simulation results show that the max measurement error of the planes is 0.394mm by using RGB gray code with trapezoidal phase-shifting method,the depth of the planes is from 440 to 500mm,and the object can be measured which has a complex morphology by using RGB gray code with trapezoidal phase-shifting method.The advantages are that noise immunity is strong,efficiency is high,and the calculation is simple. |
| Keywords: | structured light three dimensional measurement intensity ratio trapezoidal phase-shifting |
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