Lei Jianjun, Wang Mengyao, Wang Bingren, Fan Kefeng, Hou Chunping
Opt Express. 2014 May 5;22(9):11192-204. doi: 10.1364/OE.22.011192.
The multiview images captured by toed-in camera array can reproduce the 3D scene vividly with appropriate positive, negative, and zero disparities. However, it is a challenging task to adjust the depth of the scene according to requirements of visual effects. In this paper, we propose a novel disparity control method based on projection to solve this problem. With the relationship between the world coordinate system and camera coordinate system, the zero disparity point in reference view is projected into other views. Thus, disparities of different views are obtained through matched corresponding points and views are shifted with calculated disparities. The proposed method is easy to implement, and the depth of toed-in multiview images can be adjusted as requirements. Experiment results show that the proposed method is effective in comparison to the conventional method, and the processed multiview images present desirable stereoscopic visual quality.
由内八字相机阵列捕获的多视图图像可以通过适当的正视差、负视差和零视差生动地再现三维场景。然而，根据视觉效果的要求调整场景深度是一项具有挑战性的任务。在本文中，我们提出了一种基于投影的新型视差控制方法来解决这个问题。利用世界坐标系和相机坐标系之间的关系，将参考视图中的零视差点投影到其他视图中。通过匹配对应点获得不同视图的视差，并根据计算出的视差移动视图。该方法易于实现，可以根据需要调整内八字多视图图像的深度。实验结果表明，与传统方法相比，该方法是有效的，处理后的多视图图像呈现出理想的立体视觉质量。
