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Image coding with lossy and lossless compression on integer wavelet transform
Author(s): 
Pages: 509-512
Year: Issue:  4
Journal: OPTICAL TECHNIQUE

Keyword:  整数小波变换SPIHTLZC带间预测编码;
Abstract: 提出了基于整数小波变换的有损与无损图像编码方案.有损编码采用无链表的SPIHT零树编码算法,它不同于SPIHT和LZC算法的零树分割策略和状态比特表结构.该算法所需的存储空间小,有损压缩性能高,易于硬件的实现.无损编码根据不同子带小波系数的分布特性,采用带间预测编码,不同方向的子带采用不同的预测方式,预测误差采用霍夫曼编码.测试结果证明,基于整数小波的无链表有损压缩方案不仅优于LZC,接近于SPIHT,而且易于硬件的实现.
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