Wavelet transform for the traditional complex process shortcomings and repeat the process of SPIHT coding algorithm computation, the problem of storage capacity, first of all an analysis of wavelet and wavelet decomposition level of choice, and then a new threshold variable SPIHT algorithm The algorithm uses a variable threshold is not important to the SPIHT algorithm in the list of pixels (LIP) and list of important factors (LIS) classification has been a more efficient coding algorithm. The simulation results show that the algorithm is better than the overall performance of compression SPIHT algorithm.

2009_一种改进的可变阈值SPIHT图像压缩算法.pdf

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