Title :
Interframe scalable coding using wavelet
Author :
Ma, She-Xiang ; Gui-Zhong Liu ; Liu, Gui-Zhong
Author_Institution :
Inst. of Inf. & Commun. Eng., Xi´´an Jiaotong Univ., China
Abstract :
The wavelet representation provides multiresolution/multifrequency expression of a signal with localization in both time and frequency. This paper proposes that motion estimation in the lowest frequency subband of the wavelet pyramid be implemented to reduce the total bits. The image error frame is encoded by the local embedded zerotree wavelet (LEZW) scheme. Quality scalability in interframe coding is thus achieved
Keywords :
error correction codes; image coding; image representation; image resolution; motion estimation; time-frequency analysis; transform coding; wavelet transforms; LEZW scheme; error frame encoding; frequency subband; image coding; interframe scalable coding; local embedded zerotree wavelet; motion estimation; multifrequency signal; multiresolution signal; quality scalability; time frequency localization; wavelet pyramid; wavelet representation; Discrete cosine transforms; Discrete wavelet transforms; Image coding; Image resolution; Motion compensation; Motion estimation; Scalability; Signal resolution; Spatial resolution; Wavelet domain;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889352
