Title :
Improving image coding using significance of wavelet coefficients with an efficient edge extension
Author :
Li, Jiaming ; Jin, Jesse S.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., New South Wales Univ., Kensington, NSW, Australia
Abstract :
This paper presents our efforts on improving wavelet transform based image coding. In particular, by making use of efficient image edge extension, a high performance significant-wavelet-coefficient-based image coding (SWCBIC) is developed. Compared with the performance of original significant-wavelet-coefficient-based scheme, namely embedded zerotree wavelet (EZW) coding, our algorithm shows improvement on image quality, especially at a high compression ratio
Keywords :
data compression; edge detection; image coding; wavelet transforms; compression ratio; edge extension; image edge extension; image quality; significant-wavelet-coefficient-based image coding; wavelet coefficients; Australia; Bit rate; Computer science; Entropy coding; Filter bank; Image coding; Image quality; Quantization; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.622089
