摘要
由于平面复眼与曲面均一复眼存在视场小、边缘子眼成像质量差等缺陷,因此提出变焦距曲面复眼结构模型,计算该复眼模型的尺寸参数并建立三维模型,利用ZEMAX仿真分析,优化得到最佳各级子眼尺寸参数,消除各级子眼之间的视场盲区,得到较大成像范围及最优的成像效果。采用注射模压工艺制备直径为8.66mm材料为PDMS的变焦距曲面复眼。针对双目视觉的目标识别方法存在定位精度低等问题,提出多目定位算法,通过标定变焦距曲面复眼三维模型中每个子眼位置,利用最小二乘法解算超定性方程组得到目标点的三维坐标。搭建复眼定位测试系统试验台,通过多个子眼透镜捕捉目标点,解算得出目标点的三维坐标,误差在5%以内,证明多目视觉捕捉运动物体更加精确。
The flat compound eye and homogeneous micro-lens array have defects of small field of view and fuzzy edge of eye imaging.For these problems,a zoom surface compound eye structure model is proposed in this paper.By calculating the size parameters of compound eye model,establishing 3D model,using ZEMAX simulation analysis,the size parameters of the best eyelets at all levels are optimized,and the blind spot between the eyes of all levels is eliminated to obtain a larger imaging range and the best imaging result.An injection modeling process is used to produce a variable-focus compound eye with a diameter of 8.66 mm and the material is PDMS.For binocular vision target recognition method is poor in accuracy,a multi-objective localization algorithm is proposed.By calibrating the position of each eye in 3D model of compound eye with zooming surface,the over-determined equation is solved by the least squares method and 3D coordinates of the target point is obtained.The test bench of eye positioning test system is set up.By capturing the target points through multi-eyepiece lenses,the 3D coordinates of target points are calculated and error is less than 5%.It is proved that the multi-objective vision can capture moving targets much accurately.
作者
刁晓蕾
刘凤丽
李伦
郝永平
DIAO Xiaolei;LIU Fengli;LI Lun;HAO Yongping(Shenyang Ligong University,Shenyang 110159,China;Technology center of CAD/CAM,Shenyang110159,China)
出处
《沈阳理工大学学报》
CAS
2018年第1期58-64,共7页
Journal of Shenyang Ligong University
基金
国家863计划资助项目(2015AA042701)
总装基金资助项目(9140A0502)
关键词
变焦距
曲面复眼
大视场
目标定位
PDMS
varifocal
curved compound eye
large field of view
target localization
PDMS
