DocumentCode :
2207549
Title :
An Optimized Design of Bit Plane Prediction Based Image Compression Algorithm on DSP
Author :
Zheng Zhao ; Jiang Hongxu ; Li Bo
Author_Institution :
Digital Media Lab., Beihang Univ., Beijing, China
fYear :
2009
fDate :
26-28 Dec. 2009
Firstpage :
1157
Lastpage :
1160
Abstract :
According to the characteristics of DSP platform, this paper presents an optimized design of wavelet image compression algorithm based on bit plane prediction. The optimization is made focus on adaptive quantization module and predictive and entropy coding module respectively. As for the adaptive quantization module, the optimization is made through the ways of luminance value calculation by look-up table, improving calculation formula of standard deviation, eliminating storage space of luminance values under the condition that no time complexity is increased, sampling calculation of standard deviation and converting heavy division calculation to multiplication calculation. As for the predictive and entropy coding module, we improve the storage method of the wavelet coefficients, implement predictive classification by look-up table, and optimize the scanning encoding method by zero block coding. The tested results through hardware platform on DSP show that the operation speed of the optimized algorithm has increased by about 30 times and reaches more than 70 Mbps.
Keywords :
computational complexity; data compression; image coding; prediction theory; quantisation (signal); sampling methods; signal processing; table lookup; wavelet transforms; adaptive quantization module; bit plane prediction; calculation formula improvement; digital signal processing; entropy coding module; heavy division calculation; look-up table; luminance value calculation; multiplication calculation; optimized design; predictive coding module; standard deviation sampling calculation; storage space elimination; time complexity; wavelet image compression algorithm; zero block coding; Algorithm design and analysis; Design optimization; Digital signal processing; Entropy coding; Image coding; Optimization methods; Quantization; Sampling methods; Table lookup; Wavelet coefficients;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
Type :
conf
DOI :
10.1109/ICISE.2009.291
Filename :
5454512
Link To Document :
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