經典分數階傅立葉變換，土耳其算法（The fast Fractional Fourier transFORm）
上傳時間： 2014-01-21
上傳用戶：李彥東
16點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.
上傳時間： 2013-12-20
上傳用戶：yph853211
This program produces a Frequency Domain display from the Time Domain * data input using the Fast Fourier transFORm.
標簽： Domain Frequency the produces
上傳時間： 2013-12-11
上傳用戶：mpquest
FRFT時頻變換代碼（參考算法：H.M. Ozaktas, M.A. Kutay, and G. Bozdagi.Digital computation of the fractional Fourier transFORm.IEEE Trans. Sig. Proc., 44:2141--2150, 1996.）
標簽： H.M. G. M.A. computation
上傳時間： 2013-12-21
上傳用戶：希醬大魔王
為保證網絡信息傳輸的安全性,提出一種視頻圖像加密方法。該方法引入混沌系統中的Logistic映射和 Baker映射,結合H·264視頻壓縮編碼特點,利用Baker映射對DCT (Discrete Cosine transFORm)變換量化后 的塊進行位置置亂,
標簽： Baker Logistic Discrete 映射
上傳時間： 2017-02-06
上傳用戶：zhliu007
為保證網絡信息傳輸的安全性,提出一種視頻圖像加密方法。該方法引入混沌系統中的Logistic映射和 Baker映射,結合H·264視頻壓縮編碼特點,利用Baker映射對DCT (Discrete Cosine transFORm)變換量化后 的塊進行位置置亂,
標簽： Baker Logistic Discrete 映射
上傳時間： 2014-11-26
上傳用戶：mpquest
：以matlab工具箱的形式給出了靜態及動態未知環境下移動機器人地圖構建的仿真研究平 臺。通過分析polaroid6500聲納、電子羅盤、編碼器等傳感器的工作原理建立了參數可調的傳感器 模型。這些傳感器為機器人提供位姿及環境信息。在分析已有基于hough變換的線段提取算法的基 礎上提出了抑止。雜線段。現象的CIHT[Clus~r Inhibiting Hough transFORm]算法．采用cIHT 對聲蚋信息作環境特征提取，便于開展基于環境特征的未知環境地圖構建算法方面的研究工作。
上傳時間： 2017-03-26
上傳用戶：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.
標簽： present modalities existence different
上傳時間： 2014-03-04
上傳用戶：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.
標簽： double-density improvement additional critically
上傳時間： 2017-04-03
上傳用戶：dongbaobao
this is a digital intercom projects using ADC PWM and UART interrupt. you take the value from mic enter it to ADC and then send serially to the other microcontroller which receives the data and transFORm the digital data into analog data by PWM which is connected to speaker
標簽： interrupt intercom projects digital
上傳時間： 2017-04-19
上傳用戶：亞亞娟娟123
