Coping with complexity led to structured languages such as Pascal and c, which created hierarchical structures of state variables that provided a useful partitioning of the state space.

To deal with the hierarchical FPGA architectures, a modified partitioning algorithm was introduced here according to special hierarchical FPGA model based on the previous works.

The application of Set Partitioning in Hierarchical Trees (SPIHT) to the image coding of arbitrarily shaped Region of Interest (ROI) is investigated.