One method is to embed the watermarking signal of pseudo - gauss random sequence into the low frequency sub band of dwt domain by analyzing both the distribution of the signal energy and the influence of the image disposal 一是通过对图像小波变换后图像能量的分布以及图像处理对各小波子图影响的分析，提出将高斯水印嵌入到小波变换的逼近子图中。
Liam martin compston and his best pal pinball william ruane peddling cheap cigarettes in pubs . his mom , jean michelle coulter , who has taken a fall for her drug - dealing boyfriend stan gary mccormack , is due for release from prison in two months 15岁双失少年赖恩和他老友波子在酒吧贩卖私烟，而妈妈却为毒贩男友史丹顶罪入狱，两个月内便出狱，刚好赶及赖恩16岁生日。
Considering the energy distribution of wavelet coefficient , this paper investigated the characteristics of the rule of energy distribution , based on which two new proposed compression methods were examined and some useful conclusions were drawn 本文从能量分布的角度讨论了基于小波变换后图像能量分布的特点，提出了两种根据系数能量的分布选择系数的压缩方法，通过试验和其它方法进行对比，按分解等级归类小波子带的压缩方法可提供更高效的压缩性能。
We raised a new model that we disassemble the character into several parts , which could be recognized by computer topologically based on the high - frequency wavelet coefficients vector , disregarding the traditional extraction method that used the statistical or structural feature based on the individual pixel in the 2 - dim plane of character . moreover , the concept of multi - dim cognizing feature model was put forward by encoding the character , according to its " location and run - length information . the information confusion and redundancy could be largely eliminated , as leaded to the improving of the preciseness when recognizing the character 克服以往结构、统计方法在字符特征提取中无法剔除噪声、偏移等冗余信息的不足，以认知的新思路分析图像，给出基于小波子图的笔划定义，给出一种注重反映字符部分最为重要的笔划的类型、数量、游程、位置特征，改进了基于字符二维图像的统计与结构特征提取方法因变形，畸变造成信息混淆和冗余；给出了提取多属性字符认知特征的方法和识别机制，实验表明，该方法能有效的识别字符； 3
This thesis introduces a motion compensated 3d wavelet scalable video coding system . and three key techniques of the coding system have been thoroughly researched , namely mc temporal filtering , 3d wavelet transform structure and 3d wavelet subband coding . firstly , traditional wavelet transform theory and wavelet lifting scheme are illustrated 本文在对运动补偿三维小波可扩展视频编码框架进行分析的基础上,对该框架涉及的三个关键技术,即运动补偿时域滤波、三维小波变换结构以及三维小波子带编码进行了深入研究。
