In this paper , we construct a multi - resolution analysis of h2 ( i ) space using spline function and give the multi - level decomposition of a function through interpolating spline wavelet transform 本文中我们给出了由样条函数构造的h ~ 2 ( i )空间上的多分辨分析并利用样条小波插值变换对函数进行多尺度分解。
Then for the computing time of the traditional pca - based face recognition algorithm is very large , we use wavelet transform to reduce the dimension of images , and decrease computation complex 针对传统pca (主分量分析)方法运算量大的特点,本文通过小波变换对输入图像进行降维处理,降低了后续算法的复杂度。
Aiming at the characteristics of the marrow cell image , the paper adopts continuous wavelet transform to process image so that main edges can be detected from different angle in the meanwhile original image noise being eliminated 摘要针对骨髓细胞图像的特点,采用连续小波变换对图像进行了处理,在消除原始图像噪声的同时,从不同的角度检测出图像的主要边缘。
The results show that the self - adaptive filter can be used to detect line spectrum , the wavelet transform and the fourier transform can be used to detect the ship noise in modulating the anisotropic noise field 结果表明:自适应滤波对于各向异性噪声场中的线谱检测有良好的效果;而小波变换和短时傅里叶变换对各向异性噪声场中的舰船噪声调制信号检测有良好的效果。
In chapter iv , a new method of eyes location is provided . it detects the edg of human face image with wavelet transform in the first . then it begins to statistic the gray value of the row and list 本文第四章提出了一种基于简单背景的人眼定位算法,用小波变换对人脸图像进行边缘检测,对得到的结果进行行列统计,得到人脸的大致位置,再用模板匹配进行最后的精确定位。
The results were shown as follows : ( 1 ) based on weather data , the space - time changes of climate in chongqing karst region were analyzed applying regression analysis and kriging interpolation and the future climate was forecasted by wavelet analysis 主要研究结果如下: ( 1 )利用回归分析、 kriging空间插值等方法分析了基于气象数据的气候的时空变化,并采用小波变换对未来的气候进行了预测。
In order to examine the errors in assembling the manufacture timely and effectively , in this subject some treatments are given to the image of the manufacture kit through the wavelet transform and the manufacture kit through the wavelet transform and the errors are recognized 为了及时有效地检测出产品组装的错误,在课题中利用小波变换对套件产品图像进行处理,并识别出上述两种组装错误。
With the integer wavelet transform to the original image we apply a general hid means in wavelet domain for all kinds of files especially for the executable files and text files . the result shows that we can get an invisible image 本文为可执行文件与文本文件及其他各种格式的文件提供了一种通用的小波域隐藏方式,采用整数小波变换对原始图像进行处理,实验结果表明,可以达到较好的不可见性。
The noise lie in the system is analyzed and summarized in this paper . base on the noise in the system , the idea of denoise with wavelet transform is brought forward . classical denoising methods such as pure time - domain , pure frequency - domain , fft , wigner ville are limited 本文根据系统中所存在的噪声,对几种经典的去噪处理方法进行了分析、比较、讨论它们各自的应用范围,提出了利用小波变换对信号进行除噪的思想。
Use wavelet analysis dwgs of shanghai , tianjin , xian and wuhan by the time 1470 to 2000 . discuss the abrupt situation . at last , we use the arithmetic of lemper - ziv complexity to resolve the complexity of shanghai , tianjin , xian and wuhan 利用子波变换对上海、天津、西安和武汉的1470年? 2000年的旱涝等级序列资料进行了分析,讨论了突变点的位置变化,并利用兰帕尔?齐夫复杂性算法将以上各地区进行了粗粒化,求出它们的复杂度。