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为了满足利用非接触式方法获取小视场三维信息的要求,研究了一种基于集成成像技术获取小视场三维信息的系统,并在借鉴传统微透镜阵列(MLA)及相机阵列工作模式的基础上,通过利用精密二维平移台,巧妙地将相机阵列应用于获取小视场三维信息中。系统工作时,首先将相机获取的图像合成元素图像阵列,并运用相应的算法实现三维重建与测量。实验结果表明,本文系统获取了相对清晰、没有相互串扰的元素图像阵列,实现了完整且细节丰富的三维图像再现;可以获取待测物体上任意一点的三维坐标,并且三维测量误差保持在0.3 mm以内。实验结果相对理想,为集成成像技术应用于高精密测量提供了理论基础。
In order to meet the requirement of obtaining small field three-dimensional information by non-contact method, a system based on integrated imaging technology for acquiring small field three-dimensional information is studied. Based on the traditional micro-lens array (MLA) and camera array working mode, By using a precision two-dimensional translation stage, the camera array is cleverly applied to acquiring small field of view three-dimensional information. When working in the system, the image acquired by the camera is first synthesized into an array of elemental images and three-dimensional reconstruction and measurement are performed by using the corresponding algorithm. The experimental results show that the system has obtained a relatively clear array of elemental images without crosstalk and achieved a complete and detailed three-dimensional image reproduction. The three-dimensional coordinates at any point on the object to be measured can be obtained and the three-dimensional measurement error remains at 0.3 mm Within. The experimental results are relatively ideal, which provides a theoretical basis for the application of integrated imaging technology to high-precision measurement.