摘要
随着数字图像压缩编码技术的广泛应用,人们对于压缩编码技术的实时性要求越来越高,如何进行快速有效的图像压缩编码是当前需要解决的关键技术。文中在分析提升算法和基于提升算法的整数小波变换的基础上,介绍了一种新的基于整数小波变换和树特征平面的数字图像编码方法,该算法只需对小波系数进行一次扫描即可完成编码过程,简单易行。实验证明该算法性能优良,并且与零树编码相比大大节约了处理时间。
With wide use of digital image compression code technology, the people demand the real-time nature of compression code technology. How to realize rapid and effective image compression code has to be settled urgently This article analyzes the lifting algorithm and integer wavelet transform based on the lifting algorithm, and proposes a new digital image code method based on integer wavelet transform and tree characteristic flat surface. This scheme accomplishes code process by one time scanning of the wavelet modulus. So it is easy in implementation and is of high performance, and could greatly, save processing time as compared with zero tree encoding.
出处
《通信技术》
2009年第6期141-143,共3页
Communications Technology
关键词
提升格式
整数小泼变换
图像压缩
零树编码
lifting scheme
integer wavelet transform
image compression
zero tree encoding
