On the Design of Change-driven Data-flow Algorithms and Architectures for High-speed Motion Analysis

Motion analysis is a computationally demanding task due to the large amount of data involved as well as the complexity of the implicated algorithms. In this position paper we present some ideas about data-flow architectures for processing visual information. Selective Change Driven (SCD) is based on a CMOS sensor which delivers, ordered by the absolute magnitude of its change, only the pixels that have changed after the last time they were read-out. As a natural step, a processing architecture based on processing pixels in a data- flow method, instead of processing complete frames, is presented. A data-flow FPGA-based architecture is appointed in developing such concepts.