Title :
Lifting based discrete wavelet transform architecture for JPEG2000
Author :
Lian, Chung-Jr ; Chen, Kuan-Fu ; Chen, Hong-Hui ; Chen, Liang-Gee
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A lifting based 1-D discrete wavelet transform (DWT) core is proposed. It is re-configurable for 5/3 and 9/7 filters in JPEG2000. Folded architecture is adopted to reduce the hardware cost and achieve the higher hardware utilization. Multiplication is realized in hardwired multiplier with coefficients represented in canonic signed-digit (CSD) form. It is a compact and efficient DWT core for the hardware implementation of JPEG2000 encoder
Keywords :
computational complexity; discrete wavelet transforms; image coding; multiplying circuits; 5/3 filters; 9/7 filters; DWT core; JPEG2000; canonic signed-digit form; encoder; folded architecture; hardware cost; hardware utilization; hardwired multiplier; lifting based discrete wavelet transform architecture; Computer architecture; Convolution; Costs; Discrete transforms; Discrete wavelet transforms; Hardware; Image coding; Kernel; Low pass filters; Transform coding;
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.2001.921103
