2010射线跟踪课件3 (1)

采用FDTD时域有限差分法计算电磁波的传播问题等,(The finite difference time-domain (FDTD) method is used to calculate the propagation of electromagnetic wave.)

说明：  对三角划分算法的研究，对以前方法的改进，以达到良好的效果，(Triangulation algorithm to study the improvement of previous methods in order to achieve good results,)

pca算法，用于数据降维，注释非常详细清晰，(PCA algorithm, for data dimensionality reduction, clear and very detailed notes,)

非负矩阵分解法，这一种新型的子空间分解方法，增加了非负性约束，比PCA、ICA更有效(Non-negative matrix factorization method, which a new type of sub-space decomposition method, an increase of non-negative constraint, compared with PCA, ICA is more efficient)

matlab程序，产生涡旋光束，光强以及相位图，在科研上很有用，简单快速。(The matlab program produces vortex beams, light intensities, and phase diagrams, which are useful, simple, and fast in scientific research.)

说明：  1. 掌握利用脉冲响应不变法设计IIR数字滤波器的原理和具体方法。 2. 加深理解数字滤波器与连续时间滤波器之间的技术指标转化。 3. 掌握脉冲响应不变法设计IIR数字滤波器的优缺点及使用范围(1. Master the principle and specific method of designing IIR digital filter with impulse response invariant method. 2. Deepen the understanding of the technical index transformation between digital filter and continuous time filter. 3. Master the advantages, disadvantages and application scope of the design of IIR digital filter by the pulse response invariant method)

JSteg隐写技术matlab实现代码--基本思想：用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位，但若量化后DCT系数为0或者1，则不进行处理。（DCT系数的LSB嵌入） (JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the least significant bit, but if the quantized DCT coefficient is 0 or 1, no processing. (DCT coefficients LSB embedding))

正则化工具,完整的正则化工具，包括各种正则化的处理，使用matlab编程语言(regularization tools)

这是一个相机标定程序，有数据检验，求出两个相机的投影矩阵，用于双目视觉(This is a camera calibration procedures, test data, obtained two camera projection matrix for the binocular vision)

说明：  实现图像精确分割，基于ALpha Matting 的基础上的Sharedmatting图像分割算法(Accurate image segmentation,Sharedmatting image segmentation algorithm based on ALpha Matting)