1006-4303(2009)02-0196-05

利用pcnn，每当有一批像素对应的神经元点火，对像素值进行一次修正。第n次点火的所有神经元用矩阵B（n）表示， 已经点火的像素位置标记为‘1’，未点火的标记为‘0’。通过一个3*3的模板滑过B（n），判断若模板内的值全为‘1’或全为‘0’， 则这些像素值不进行处理，否则若模板中心的值为‘1’，则增加该位置的像素值的大小，中心值为‘0’，则减小像素值。该功能由xiugai(B,K)函数实现 Beta取负值来抑制周围的神经元点火，因为输入pcnn（X）的是模糊图像，抑制之后使处理的像素值更加接近原图像的像素值（抑制参数通过试验确定，并不精确） 总之运行结果只是对像素值变化较大的边缘区域进行了像素值的修正。 通过不断调整参数使峰值信噪比有所升高，但是升高得不是太多(Use pcnn, whenever a group of pixels corresponding to the firing of neurons, a correction value for the pixel. Ignition of all the n-th neuron matrix B (n) represents, Already ignition pixel position labeled 1 , unfired labeled 0 . By a 3* 3 templates over the B (n), determines if the value within the template are all 1 or all 0 , These pixel values are not processed, otherwise the value if the template center 1 , then the increase in the size of the pixel values of the position, the center value of 0 , the pixel value is reduced. This function is implemented by xiugai (B, K) function Beta is a negative value around the element to inhibit neuronal firing, because the input pcnn (X) is a blurred image, the pixel values of inhibition after treatment of the pixel value closer to an original image (suppression parameter determined by experiment, is not exact) Results only in short run large changes in the edge region of the pixel values of the corrected pixel values. )

svpwm，三电平，simulink，空间适量脉冲宽度调制(svpwm, three-level, simulink, space right amount of pulse width modulation)

说明：  双PI闭环PWM整流器，可完美运行,网侧THD3.8%，直流侧电压启动超调量1%左右(Double PI closed-loop PWM rectifier, perfect operation, thd3.8% at grid side, 1% of DC side voltage start-up overshoot)

经典的matlab编程代码,这是一部经典的matlab教材，对最优化问题阐述的比较精辟。(the code of matlab，-This is an optimization on the books, is English. This is a classic foreign materials, for optimization problems on the very brilliant)

用MATLAB编写的语音信号的短时分析，主要包括：分帧、短时能量、短时平均幅度、短时过零率、 wPqmRn函数、短时幅度差、倒谱、复倒谱 bAflVNH系数计等，是我多年调试通过的程序 (MATLAB prepared with short-term analysis of the speech signal, including: framing, short-time energy, short-term average amplitude, short-term zero rate,wPqmRn function, short-term amplitude difference, cepstrum, cepstral bAflVNH coefficient meter, etc. , is a program debugging through my years of )

通过一个简单的例子来讲解遗传算法，适合初学者学习领悟遗传算法的真谛。(Through a simple example to explain the genetic algorithm, genetic algorithm is suitable for beginners to learn comprehend the true meaning.)

精通matlab7.0配套光盘上计算书中算例的源码(Calculated on the companion CD matlab7.0 proficient examples of the source book)

buck converter using the matlab .mdl file for basic learners

人工智能模拟退火算法，包含了matlab程序解决优化问题。(Artificial intelligence simulated annealing algorithm includes matlab program to solve optimization problems.)

说明：  （1）人脸图像的采集 （2）人脸图像增强：去噪、均衡、尺寸归一化、倾斜校正等 （3）脸部肤色区域分割：采用肤色模型检测与分割人脸肤色区域 （4）脸部五官区域分割：采用算法将人脸分割成眉毛、眼睛、鼻子、嘴巴等多个区域((1) Facial image acquisition (2) Face Image Enhancement: Denoising, Equalization, Size Normalization, Tilt Correction, etc. (3) Facial skin color region segmentation: using skin color model to detect and segment face skin color region (4) Facial Five-sense Region Segmentation: Face is segmented into eyebrows, eyes, nose, mouth and other regions by using the algorithm.)