张晓东,吴斌.小视场集成成像三维信息获取技术研究[J].光电子激光,2017,28(11):1240~1245 |
小视场集成成像三维信息获取技术研究 |
Research on three-dimensional information acquisition technology of small field using integral imaging |
投稿时间:2017-02-15 |
DOI: |
中文关键词: 集成成像 三维重建 三维测量 小视场 |
英文关键词:integral imaging three-dimensional reconstruction three-dimensional measurement small field |
基金项目:国家自然科学基金(51475328、61372143)资助项目 (天津大学 精密测试技术与仪器国家重点实验室,天津 300072) |
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中文摘要: |
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。 |
英文摘要: |
For small field measurement,there are many kinds of three-dime nsional measurement means.To acquire the three dimensional information of the sm all field by using no-contact method,this paper proposes a method based on integral imaging technology,and on the basis o f the working mode of the traditional micro-lens array and the camera array,the camera array is applied to acquire the three-dimensional information of the small field by using a precise two-dimensional translation stage.When the system is operating,images capture d with camera are used to synthesize the element image array and achieve the three-dimensional reconstruc tion and measurement using the corresponding algorithm.Based on the above device,a verification experiment is c arried out.The experimental results show that the device obtains a relatively clear element image array wit h no mutual cross-talk,and the reconstructed images with full 3D information and loss less details can be achi eved by the proposed device.In addition,three-dimensional coordinates of an arbitrary point on the object to be measured can be obtained,and the error of three-dimensional measurement remains within 0.3mm.The experimental r esults are ideal,and the method provides a theoretical basis for the application of integrated imaging in high precision measurement. |
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