A Fast Context Modeling Using Tree-structure of Coefficients from Wavelet-domain

In EBCOT, the context modeling process takes excessive calculation time and this paper proposed a method to reduce this calculation time. That is, if the finest resolution coefficient is less than a pre-defined transfer factor the coefficient and its descendents skip the context modeling process. There is a trade-off relationship between the calculation time and the image quality or the amount of output data such that as this threshold value increases, the calculation time and the amount of output data decreases, but the image degradation increases. The experimental results showed that in this range the resulting reduction rate in calculation time was from 3% to 64% in average, the reduction rate in output data was from 32% to 73% in average.

[1]  David S. Taubman,et al.  High performance scalable image compression with EBCOT. , 2000, IEEE transactions on image processing : a publication of the IEEE Signal Processing Society.

[2]  Chaitali Chakrabarti,et al.  A high-performance JPEG2000 architecture , 2003, IEEE Trans. Circuits Syst. Video Technol..

[3]  Jerome M. Shapiro,et al.  Embedded image coding using zerotrees of wavelet coefficients , 1993, IEEE Trans. Signal Process..

[4]  S. Nooshabadi,et al.  High speed VLSI architecture for bit plane encoder of JPEG2000 , 2004, The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04..

[5]  Ruirui Zhang,et al.  A Feasibility Study of Nano-grained ZnO Piezoelectric Thin Film Fabrication , 2009, J. Inform. and Commun. Convergence Engineering.

[6]  Kwang-Ryol Ryu,et al.  Edge Preserving Speckle Reduction of Ultrasound Image with Morphological Adaptive Median Filtering , 2009, J. Inform. and Commun. Convergence Engineering.

[7]  Liang-Gee Chen,et al.  Analysis and architecture design of block-coding engine for EBCOT in JPEG 2000 , 2003, IEEE Trans. Circuits Syst. Video Technol..