一种FIR频率平面滤波器及其在光场滤波中的应用

A Closed Form Sound Source Location Solution Using Range Differences of Arrival or Gain Ratios of Arrival Video Frames

本文提出了一种FIR频率平面滤波器,它具有近似4D平面的通带形状。该滤波器的设计基于窗函数法,设计简单,且具有线性相位特性,因此非常适合用于光场处理。理论分析和实验表明,由无遮挡朗伯表面构成的光场可以使用该滤波器实现深度滤波。

A 4D FIR frequency planar filter with a passband that approximated a 4D plane is proposed.The proposed filter is simply designed by window method,and possesses linear-phase property.Therefore,it is efficient to process light field.Theoretical deduction and experimental results show that a light field containing Lambertian surfaces with no occlusions can be selectively filtered for depth using the proposed filter.