A New Unequal Error Protection Scheme for Spiht in Progressive Image Transmission
نویسندگان
چکیده
In the output of the state-of-art embedded wavelet image encoder SPHIT, three kinds of bits, namely the significance information bits, sign bits and refinement bits are interleaved, making unequal error protection(UEP) ineffective. In this work, we observed a beautiful property of SPIHT. The synchronization in decoding is of no influence if we split the original embedded bit stream into three in transmission. Based on this observation, we proposed an new unequal error protection scheme for SPIHT, which requires the least modification of the SPIHT algorithm. Experimental results showed the superiority of this UEP scheme to equal error protection(EEP) scheme.
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