time-frequency

Photos with people (e.g., family, friends, celebrities, etc.) are the major interest of users. Thus, with the exponentially growing photos, large-scale content-based face image retrieval is an enabling technology for many emerging applications. In this work, we aim to utilize automatically detected human attributes that contain semantic cues of the face photos to improve contentbased face retrieval by constructing semantic codewords for efficient large-scale face retrieval. By leveraging human attributes in a scalable and systematic framework, we propose two orthogonal methods named attribute-enhanced sparse coding and attributeembedded inverted indexing to improve the face retrieval in the offline and online stages. We investigate the effectiveness of different attributes and vital factors essential for face retrieval. Experimenting on two public datasets, the results show that theproposed methods can achieve up to 43.5 relative improvement in MAP compared to the existing methods.

用matlab 实现强噪声中弱信号的提取，可产生图像 一次生成(Using matlab to achieve strong noise in the extraction of weak signal can produce a generation of images)

FIR 底通和带通滤波器和IIR 底通和带通滤波器，计算十字叉丝的在不同距离的衍射图像,采用累计贡献率的方法。( Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Calculation crosshairs diffraction image at different distances, The method of cumulative contribution rat.)

用于过采样滤波器组实现最优化设计,主要应用于图象处理(For over-sampling filter banks to achieve the most optimized design, mainly used in image processing)

利用Matlab软件方便的从海量文件夹里找出你想要的文件，使你不必做一些重复性的劳动(Using Matlab software easy to find from a massive folder of files you want, so you do not have to do some repetitive work)

基于AR模型的Rayleigh瑞利衰落信道仿真源代码()

Matlab 工具，各类积分，二次定积分，gquad2dggen等(Matlab tool, all kinds of points, the second definite integral, gquad2dggen etc.)

this sample is not mine

matlab下将彩色图像装换为灰度图像的一个小程序(a small programm for convert the colour image to gray image using maltlab platform)

EKF与CKF对纯方位目标跟踪的仿真实例(A simulation about EKF and CKF algorithm used in TMA-Bearing Only.)