本文主要研究小波变换在图像压缩中的应用，分析研究等级树集合分割算法(SPIHT)。

In this paper, it is studied to compress image with wavelet transform, and the application of Set Patitioning in Hierarchial Trees (SPIHT) in image process is researched.

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研究了等级树集分割编码方法(SPIHT)在任意形状感兴趣区域(ROI)编码中的应用。

The application of Set Partitioning in Hierarchical Trees (SPIHT) to the image coding of arbitrarily shaped Region of Interest (ROI) is investigated.

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通过寻找模型搜索器中的类，找出等级树状结构类，双击打开编辑器中的类，按下f 4以打开等级树。

Discover the hierarchical tree structure classes by finding the class in the Model Explorer, double-click to open the class in the editor, and press F4 to open the hierarchy tree.

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