Efficient 3-D parallel FIR filtering algorithm

In this paper we present an efficient 3-D digital filtering method based on a new 3-D parallel filtering algorithm. This method is suitable for high resolution / high speed 3-D image and video processing. The proposed 3-D parallel filtering algorithm is highly efficient due to the elimination of overlapping segments overhead in the block-filtering method, and the boundary conditions in parallel filtering applications. It also solves the problem of limited efficiency of direct FIR filtering when the system impulse response is large, and enhances the overall memory distribution of the parallel system by segmenting both the 3-D input data and the impulse response of the system into smaller independent subsections that can be simultaneously processed. Finally, the algorithm´s performance is assessed and analyzed.