Title :
The predictive embedded zerotree wavelet (PEZW) coder: low complexity image coding with versatile functionality
Author_Institution :
Media Technol. Lab., Texas Instrum. Inc., Dallas, TX, USA
Abstract :
We introduce the predictive embedded zerotree wavelet (PEZW) codec, an image coder that achieves good coding efficiency and versatile functionality with limited complexity requirement. Our complexity analysis showed that the memory requirement of this coder is less than 15 k bytes regardless of image sizes. Our simulation results also showed that the coding efficiency of this low complexity coder is competitive with the state of the art of wavelet coders that use whole image buffers. The PEZW coder described has been adopted in MPEG4 as its still texture coding tool and is currently a proposal to the evolving JPEG2000 standard
Keywords :
buffer storage; code standards; codecs; computational complexity; image coding; image texture; telecommunication standards; transform coding; trees (mathematics); wavelet transforms; JPEG2000 standard; MPEG4; PEZW codec; coding efficiency; complexity analysis; image sizes; low complexity coder; low complexity image coding; memory requirement; predictive embedded zerotree wavelet coder; simulation results; still texture coding tool; whole image buffers; Application software; Entropy; Hardware; Image coding; Multimedia databases; Quantization; Resilience; Scalability; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.756246
