Title :
Analysis and high performance parallel architecture design for EBCOT in JPEG2000
Author :
Zhang, Yi-Zhen ; Xu, Chao
Author_Institution :
Nat. Lab. on Machine Perception, Peking Univ., Beijing, China
Abstract :
This paper presents analysis and design of bitplane parallel architecture for embedded block coding with optimization truncation (EBCOT) tier-1 in JPEG2000. By detailed analysis of bitplane parallel context modeling, we discover the reason that causes the degradation of the parallel entropy coding performance. Two improved methods, referred to as data-pairs ordering (DPO) and flexible MQ (FMQ) coder are proposed. The coding speed can be improved greatly by using the improved bitplane parallel coding methods. Compared with the conventional bitplane parallel architecture, our architecture can decrease about 24% of the computation time.
Keywords :
block codes; data compression; entropy codes; image coding; parallel architectures; EBCOT; JPEG2000; bitplane parallel architecture; data-pairs ordering; embedded block coding; high performance parallel architecture design; optimization truncation; parallel entropy coding; Arithmetic; Computer architecture; Context modeling; Degradation; Discrete wavelet transforms; Entropy coding; Image coding; Parallel architectures; Performance analysis; Transform coding;
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
DOI :
10.1109/ICIP.2005.1530562
