Title :
VLSI design of an efficient embedded zerotree wavelet coder with function of digital watermarking
Author :
Shen-Fu Hsiao ; Yor-Chin Tai ; Kai-Hsiang Chang
Author_Institution :
Dept. of Comput. Sci. & Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A hardware architecture is presented for the embedded zerotree wavelet (EZW) algorithm. We encode independently the symbols generated in the significant mapping (SMAP) and those in the successive approximation quantization (SAQ). Compared to previously proposed architectures, our design leads to fewer transmitted bits and thus alleviates the communication overhead without sacrificing PSNR.
Keywords :
VLSI; cryptography; data encapsulation; digital signal processing chips; integrated circuit design; transform coding; video codecs; wavelet transforms; EZW algorithm; SAQ; SMAP; VLSI design; communication overhead; digital watermarking; efficient embedded zerotree wavelet coder; hardware architecture; significant mapping; successive approximation quantization; Computer architecture; Computer science; Hardware; Image coding; Quantization; Streaming media; Very large scale integration; Watermarking; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Consumer Electronics, 2000. ICCE. 2000 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angles, CA, USA
Print_ISBN :
0-7803-6301-9
DOI :
10.1109/ICCE.2000.854575
