An embedded wavelet image coding algorithm and its hardware implementation based on zero-block and array (EZBA)

In this paper, we first propose an embedded wavelet image coding algorithm based on zero-blocks and array structures - called EZBA. Then, we discuss the hardware realization of the algorithm. In comparison with other methods, the EZBA is simpler to be realized and has higher compression efficiency. For hardware realization, we implement two main parts. One is the discrete wavelet transform (DWT); the other is the architecture of retrieving and coding algorithm (the EZBA itself). Experimental results show that the proposed EZBA outperforms other wavelet-based image coding schemes.