A Raspberry Pi Based Video Pipeline for 2-D Wave Digital Filters on Low-Cost FPGA Hardware

Implementation and evaluation of image/video processing systems on FPGA hardware require a video path for input/output of data. We propose a portable low-cost video pipelining method by means of a USB 2.0 interface in conjunction with a Raspberry Pi single board computer, whereby virtually any video sources/sinks can be used as input/output with realtime capabilities. An application of our approach is presented by the implementation and evaluation of a 2-D spatio-temporal Wave Digital Filter for motion feature extraction.