Untitled

Frame difference is arguably the simplest form of background subtraction. The current frame is simply subtracted from the previous frame, and if the difference in pixel values for a given pixel is greater than a threshold Ts, the pixel is considered part of the foreground.

Matlab test upload /-ภ /-ภ ภ

文献“Majorization-minimization algorithm for smooth Itakura-Saito nonnegative matrix factorization”的matlab仿真源码(Matlab simulation source literature Majorization-minimization algorithm for smooth Itakura-Saito nonnegative matrix factorization " )

说明：  自己做的一道关于调频的MATLAB代码,希望大家引用。(Do their work together on the frequency of MATLAB code, hope that we quoted.)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

灰色系统理论中的灰色预测模型，多元灰色预测模型的构建，可用于系统建模，控制系统，模型设计，预测控制，视觉目标跟踪中的运动预测等应用。(Grey prediction model in Grey System Theory can be applied in system modeling, control system, model design, prediction control and motion estimation in visual object tracking, etc.)

使用基于峭度的FASTICA盲分离算法，实现对两个超高斯信号的分离，并从分离结果可总结出盲分离算法的两个不确定性。(FASTICA kurtosis-based blind source separation algorithm, to achieve the separation of the two super-Gaussian signals, and the separation results can be summarized from the blind separation algorithm of two uncertainty.)

可以读取yuv文件，输入文件夹名字、图像尺寸、帧数等，为处理yuv文件的前提(Input: filename- YUV sequence file dims- dimensions of the frame [width height] numfrm- number of frames to read startfrm- [optional, default = 0] specifies from which frame to start reading with the convention that the first frame of the sequence is 0- numbered)

自适应波束形成算法中，LMS算法和RLS算法的性能分析与比较优劣性(Adaptive beamforming algorithm, LMS algorithm and RLS algorithm performance analysis and compare the advantages and disadvantages of)

采用3×3模板进行平滑滤波，去除噪声干扰(33 template smoothing filter to remove noise interference.)