R1-165967

计算SENSE重建图像中的g-factor,这是并行磁共振成像SENSE算法的关键一步(G-factor is the metric to quantify the amplificaiton of noise power in reconstructing SENSE accelerated image. The detail was presented in Pruessmann s 1999 Magn. Reson. Med. paper. In theory, g-factor is the pixel-by-pixel ratio of the image variance between the SENSE reconstructed image and un-accelerated image. And g-factor depends on: (1) the k-space data trajectory (2) coil sensitivit profiles (3) noise covariance matrix of the array coil)

matlab常用算法的实现，还包括PPT讲解，很详细(matlab algorithm used, but also on the PPT, a very detailed)

Finally, probability analysis, based on the chosen database, is performed and judgment whether the person is recognized is pronounced. Two different modeling techniques can be suggested for purposes of person identification or verification. The approach based on Hidden Markov Speaker Models (HMMs) with the mixtures of Gaussian distribution is text-dependent one. For this technology a speaker is described by a set of HMMs, constructing the set of speech groups spoken by that person. The speech groups may be phonemes or words [7]. The text-independent technology is rested upon Gaussian Mixture Speaker Models. For this technology each speaker is defined by only one model describing all utterances of that person. Identification in the range of both approaches is executed by evaluation of maximum a posteriori probability [7].

说明：  这是一个简单地MATLAB编写的GUI例子，可参考(This is a simple GUI written in MATLAB examples, you can refer to it )

提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。(presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.)

半定规划内点法数据整理交直流系统统一无功优化算法，系数矩阵的确定。(Interior point method for semidefinite programming data collation AC and DC systems unified reactive power optimization algorithm to determine the coefficient matrix.)

face recognition in matlab using pca lda both............................

MATLAB是一种科学计算软件，专门以矩阵的形式处理数据。MATLAB将高性能的数值计算和可视化集成在一起，并提供了大量的内置函数，从而使其被广泛地应用于科学计算、控制系统、信息处理等领域的分析、仿真和设计工作中，而且利用MATLAB产品的开放式结构，用户可以非常容易地对MATLAB的功能进行扩充，从而在不断深化对问题认识的同时，逐步完善MATLAB产品以提高产品自身的竞争能力。 (MATLAB is a scientific computing software, and specialized form of a matrix data processing. MATLAB will be high-performance numeric computation and visualization integrated and provides a number of built-in function, so that it is widely used in scientific computing, control systems, information processing, analysis, simulation and design work , and the use of the open architecture of MATLAB product, the user can very easy expansion of the MATLAB functions, thus deepening the understanding of the problem, and gradually perfect the MATLAB products to enhance the competitiveness of the product itself.)

program on BAR TRANSMISSION,CROSS TRANSMISSION, FBG SPECTRUM

artificial inteligence system to determine high angular frequency in matlab