图像工程与嵌入式零树小波图像编码

Image Engineering with Embedded Zero-tree Wavelet Image Coding

介绍了图像工程领域里新颖有效的嵌入式零树小波EZW图像编码方法。首先叙述从子带编码到小波编码的演变历程,包括正交小波的多分辨率分析和滤波器组等内容。接着阐述小波分解图像方法和EZW编码原理。重点对EZW算法进行了详细分析和描述,包括零树及其扫描方法,以及EZW算法的实现步骤。最后对上述内容进行了概括。

An image coding method is introduced in the field of image engineering which is a new and efficient image coding technique i.e. Embedded zero-tree wavelet EZW image coding. First, the course of evolvement from sub-band coding to wavelet coding, including multi-resolution analysis and filter bank on orthonormal wavelet bases is described, and then the wavelet technique for image decomposition and the fundamentals on EZW coding. Emphasis on detailed analysis and illustration of EZW algorithm is given, including zero-tree, scanning fashion and the approach in implementing steps. Finally contents mentioned above are summarized.