VLSI Architectures for JPEG 2000 EBCOT
EBCOT tier-1, as entropy encoder of JPEG 2000, is a huge time-consuming part (typically more than 50%) and is considered a bottleneck for the entire system. In this paper, EBCOT tier-1 algorithm, including serial coding mode and parallel coding mode, is introduced. The VLSI architectures for EBCOT tier-1 can be divided into two categories: parallel bit-plane coding scheme (ParaBCS), where all bit-planes in a code block are coded in parallel, and serial bit-plane coding scheme (SeriBCS), where all bit-planes in a code-block are coded in serial. These two schemes are compared in terms of system throughput, PSNR performance, power consumption, and memory size. Finally, two case studies (one is based on SeriBCS and the other is based on ParaBCS) are presented.