光场绘制中基于中心关注性的相机布置算法

The camera arrangement algorithm based on the central attention in light field rendering

光场绘制方法利用相机拍摄到的真实图像合成虚拟视点,相机位置的改变会导致虚拟视点合成质量的差异。为了提高虚拟视点的合成质量,提出了基于中心关注度的有效面积模型,建立了基于中心关注度的相机布置算法。基于中心关注度的有效面积将相机布置和虚拟视点绘制质量联系在一起,用于评估不同相机布置方案下的虚拟视点绘制质量。相机布置实验结果证明提出的基于中心关注度的相机布置算法可提高虚拟视点的绘制质量。

In light field rendering,the images captured by cameras are used to render virtual views.The changes in camera positions lead to different quality of rendering.A mathematical model called effective area（EA）based on the central attention is proposed to rearrange cameras to improve rendering quality.The central attention-based EA is associated with camera arrangement and rendering quality of virtual view to evaluate the rendering quality of virtual view under different camera arrangement schemes.An optimization algorithm for camera position is built using the central attention-based EA to yield the optimal quality.Simulation results demonstrate that central attention-based EA can be used to improve the quality of rendering.