Method and apparatus based on grouped zero tree wavelet image coding algorithm

摘要

The zerotree wavelet coding method and a device group with a high coding efficiency regardless of the scale of the wavelet transform is provided. Method for using the wavelet transform coding a zero tree, the bit stream comprising the steps of combining a plurality of zero trees which are adjacent; And the combined plurality of zero trees includes the step of encoding, and outputs the one symbol. The encoding method comprises the steps of converting the wavelet domain having a plurality of wavelet coefficients by the wavelet transform for the input image; And a step of creating the plurality of zero trees which are provided at each of said plurality of wavelet coefficients.