A high-throughput and memory efficient 2D discrete wavelet transform hardware architecture for JPEG2000 standard

The design and implementation of an efficient hardware architecture in terms of speed and memory requirements for computing the tile-based two-dimensional forward discrete wavelet transform for the JPEG2000 still image compression standard, is described. This architecture is derived from a well-established architecture template for calculating the two-dimensional forward discrete wavelet transform. The filters of that template are replaced by our previously published throughput-optimized ones. A proper scheduling algorithm has been developed that is matched to the special features of our filtering units. Performance improvements are gained thanks to the throughput-optimized filters. Also, due to the developed scheduling algorithms, reduced memory requirements are achieved when compared with previously published architectures.