These three articles involves the combination of wavelet and MCTF. MCTF means motion-compensated-time-filter. It makes wavelet Transform more popular because of the high compression efficiency.
标签： motion-compensated-tim MCTF combination articles
上传时间： 2013-11-25
上传用户：cc1015285075
经典分数阶傅立叶变换，土耳其算法（The fast Fractional Fourier Transform）
上传时间： 2014-01-21
上传用户：李彦东
16点FFT VHDL源程序，The xFFT16 fast Fourier Transform (FFT) Core computes a 16-point complex FFT. The input data is a vector of 16 complex values represented as 16-bit 2’s complement numbers – 16-bits for each of the real and imaginary component of a datum.
上传时间： 2013-12-20
上传用户：yph853211
This program produces a Frequency Domain display from the Time Domain * data input using the Fast Fourier Transform.
标签： Domain Frequency the produces
上传时间： 2013-12-11
上传用户：mpquest
FRFT时频变换代码（参考算法：H.M. Ozaktas, M.A. Kutay, and G. Bozdagi.Digital computation of the fractional Fourier Transform.IEEE Trans. Sig. Proc., 44:2141--2150, 1996.）
标签： H.M. G. M.A. computation
上传时间： 2013-12-21
上传用户：希酱大魔王
为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和 Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后 的块进行位置置乱,
标签： Baker Logistic Discrete 映射
上传时间： 2017-02-06
上传用户：zhliu007
为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和 Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后 的块进行位置置乱,
标签： Baker Logistic Discrete 映射
上传时间： 2014-11-26
上传用户：mpquest
：以matlab工具箱的形式给出了静态及动态未知环境下移动机器人地图构建的仿真研究平 台。通过分析polaroid6500声纳、电子罗盘、编码器等传感器的工作原理建立了参数可调的传感器 模型。这些传感器为机器人提供位姿及环境信息。在分析已有基于hough变换的线段提取算法的基 础上提出了抑止。杂线段。现象的CIHT[Clus~r Inhibiting Hough Transform]算法．采用cIHT 对声蚋信息作环境特征提取，便于开展基于环境特征的未知环境地图构建算法方面的研究工作。
上传时间： 2017-03-26
上传用户：xyipie
-The existence of numerous imaging modalities makes it possible to present different data present in different modalities together thus forming multimodal images. Component images forming multimodal images should be aligned, or registered so that all the data, coming from the different modalities, are displayed in proper locations. Mutual Information is the similarity measure used in this case for optimizing the two images. This method requires estimating joint histogram of the two images. The fusion of images is the process of combining two or more images into a single image retaining important features from each. The Discrete Wavelet Transform (DWT) has become an attractive tool for fusing multimodal images. In this work it has been used to segment the features of the input images to produce a region map. Features of each region are calculated and a region based approach is used to fuse the images in the wavelet domain.
标签： present modalities existence different
上传时间： 2014-03-04
上传用户：15736969615
The double-density DWT is an improvement upon the critically sampled DWT with important additional properties: (1) It employs one scaling function and two distinct wavelets, which are designed to be offset from one another by one half, (2) The double-density DWT is overcomplete by a factor of two, and (3) It is nearly shift-invariant. In two dimensions, this Transform outperforms the standard DWT in terms of denoising however, there is room for improvement because not all of the wavelets are directional. That is, although the double-density DWT utilizes more wavelets, some lack a dominant spatial orientation, which prevents them from being able to isolate those directions.
标签： double-density improvement additional critically
上传时间： 2017-04-03
上传用户：dongbaobao
