Chen Xiaobo, Zhang Jinkai, Xi Juntong
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
School of Mechanical Engineering, Jinan University, Jinan 250022, China.
Sensors (Basel). 2022 Nov 1;22(21):8407. doi: 10.3390/s22218407.
In this paper, a novel 3D metrology method using one camera with rotating anamorphic lenses is presented based on the characteristics of double optical centers for anamorphic imaging. When the anamorphic lens rotates -90° around its optical axis, the 3D data of the measured object can be reconstructed from the two anamorphic images captured before and after the anamorphic rotation. The anamorphic lens imaging model and a polynomial anamorphic distortion model are firstly proposed. Then, a 3D reconstruction model using one camera with rotating anamorphic lenses is presented. Experiments were carried out to validate the proposed method and evaluate its measurement accuracy. Compared with stereo vision, the main advantage of the proposed 3D metrology approach is the simplicity of point matching, which makes it suitable for developing compact sensors for fast 3D measurements, such as car navigation applications.
本文基于变形成像的双光心特性，提出了一种使用带旋转变形镜头的单相机的新型三维计量方法。当变形镜头绕其光轴旋转-90°时，可从变形旋转前后拍摄的两幅变形图像重建被测物体的三维数据。首先提出了变形镜头成像模型和多项式变形失真模型。然后，提出了一种使用带旋转变形镜头的单相机的三维重建模型。进行了实验以验证所提方法并评估其测量精度。与立体视觉相比，所提三维计量方法的主要优点是点匹配简单，这使其适用于开发用于快速三维测量的紧凑型传感器，如汽车导航应用。
