Title :
Analysis and architecture design of EBCOT for JPEG-2000
Author :
Chen, Kuan-Fu ; Lian, Cluing-Jr ; Chen, Hong-Hui ; Chen, Liang-Gee
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
This paper presents detailed analysis and efficient architecture design of Embedded Block Coding with Optimized Truncation (EBCOT) for JPEG-2000. Detailed profile of the context formation process in EBCOT is analyzed to get an insight into the characteristics of the operation. Column-based operation is adopted to enable higher process speed. Two speed-up methods, referred to as Pixel Skipping (PS), and Group-Of-Column Skipping (GOCS), are proposed. It is shown that over 60% of processing time can be reduced by exploiting the two methods. A column-based architecture using these combined speed-up ideas is then proposed
Keywords :
block codes; data compression; image coding; EBCOT; JPEG-2000; column-based operation; context formation process; embedded block coding; group-of-column skipping; optimized truncation; pixel skipping; process speed; processing time; Arithmetic; Block codes; Design optimization; Discrete wavelet transforms; Entropy; Frequency domain analysis; Image coding; Streaming media; Wavelet coefficients; Wavelet domain;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921183
