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- High Efficiency Compression of Electrocardiogram Data Based on Time-Varying Zerotree Wavelet Packet Coding 应用时变小波包零树编码实现心电数据的高效压缩
- zerotree wavelet packet coding 小波包零树编码
- After introducing wavelet packet, a new method for data compression, based on embedded zerotree wavelet, is presented and applied to power system fault data compression. 在描述小波包变换的基础上,提出了一种由嵌入式零树编码算法改变而成的应用于电力系统一维故障数据压缩的压缩方法。
- In this paper, an improved image indexing technique based on embedded zerotree wavelet coding histogram is proposed. 本文提出一种改进的基于嵌入式零树小波编码直方图的图像检索技术。
- The modified coding algorithm based on listless zerotree wavelet was proposed by studying SPIHT and LZC. 摘要通过对SPIHT算法和LZC算法的研究,提出一种改进的无链表零树编码算法。
- Embedded zerotree wavelet code (EZW) is one of the quite famous wavelet encoders, which was proposed by J. 嵌入零树小波编码(EZW)是比较著名的小波编码器之一,是J.
- A new algorithm of zerotree and fractal image is presented by selecting the best wavelet packet basis and different encoding methods were used, i. e. wavelet zerotree and fractal image. 在分析小波包变换、零树编码和分形编码的特点的基础上,通过选择最佳小波包基,对不同子带分别采取零树编码和分形预测编码等措施,提出了一种基于小波包变换的零树分形图像编码算法。
- An EEG Compression Algorithm Based on Embedded Zerotree Wavelet(EZW). 基于嵌入式零树编码(EZW)的脑电信号压缩算法
- In the zerotree wavelet video coding system, there always exist direct correspondences between the coded symbols. 我们都知道,在以零树编码为主轴的系统中,在所编出来的符号间均具有绝对的对映关系;
- By deliberately devising a binary image as the watermark, we introduced an error correcting code watermarking scheme, and applied it to the traditional embedded zerotree wavelet(EZW) watermarking algorithm. 通过对二值水印图像进行精心设计 ,引入纠错编码机制 ,并将其应用于传统的小波零树 (EZW )算法中。
- A new embedded zerotree wavelet based data compression method was proposed and applied to power system malfunction data compression. 摘要在小波包变换的基础上提出了一种新的基于嵌入式零树编码的数据压缩方法,并将其应用于电力系统故障数据压缩中。
- Firstly, the characters of wavelet transform and wavelet packet analysis were introduced. 首先,简略地介绍了小波变换与小波包分析的特点。
- Considering pixels of different levels have different significance, we utilize improved embedded zerotree wavelet (EZW) to get multilevel thresholds quantization. 根据不同等级像素重要性不同的特性,采用改进的嵌入零树小波编码方法对预测结果进行多阈值量化。
- In this paper, a new method of image denoising is presented ,which is built upon the ideas of Embedded Zerotree Wavelet (EZW) encoder and separate character of signals and noises. 该文在自适应树小波萎缩法的基础上,结合小波系数的零树编码思想和小波变换的信噪分离特性给出了一种新的小波消噪算法。
- embedded zerotree wavelet coding 嵌入零树小波编码
- embedded zerotree wavelet(EZW) coding EZW编码
- We choose wavelet and wavelet packet because wavelet transform (WT) itself has the character of multiresolution. 之所以选择小波和小波包变换是因为小波变换本身就是多分辨率的,这使得它比那些固定分辨率的变换,比如STFT(短时傅立叶变换)更加适合人类的生理声学模型。
- Embedded Zerotree Wavelet coding( EZW) 零树编码
- The wavelet packet transform can be used to compress seismic data in large batch processing. 在大批量地震数据处理中可以使用小波包变换压缩地震数据。
- Finally,the possibility of wavelet packet modulation application in Digital AM transmission system is discussed. 通过与基于离散傅里叶变换的正交频分复用调制系统进行比较 ,探讨了小波包调制应用于数字调幅传输系统的可能性