matlab视频转图片

基于向量式有限元理论开发的用于三维桁架单元变形计算的Matlab程序。(Based on the vector finite element theory, a matlab program for calculating the deformation of three-dimensional truss element is developed.)

地震资料处理，时频分析里的wiggle变换(Seismic data processing, time-frequency analysis in the transform wiggle)

该函数实现了cantor三分集的生成，例如输入cantor(0,0,1,0)即可产生[0,1]区间的三分集(The function implements the generation of the cantor ternary set, for example, enter the cantor (0,0,1,0) to generate the third set of the interval [0,1] )

说明：  BP神经网格预测，可用与各种波形的预测 比如经济的、机械振动信号等(ANN—BP wave forcast)

傅立叶计算以及短时傅立叶计算、功率谱分析及各自图形(Fourier calculation and short-time Fourier, power spectrum analysis and their own graphics)

扰动观察法实现MPPT的程序，可以加深对MPPT的理解(Perturbation and observation method of MPPT m program)

本程序是由空间梁单元构成的一个外形为长方体的框架算例，且有外力F以及分布荷载作用在框架节点上，计算该框架的变形和内力。 输入参数： 无 输出结果： 节点位移和单元节点力(failed to translate)

Claypol book FEM Source code in MATLAB

SURF算法作为一种新近出现的特征提取方法，在重复度、独特性、鲁棒性3个方面，均超越或接近以往提出的同类方法，并在计算效率上具有明显的优势。本代码采用SURF算法检测图像并进行坐标变换与图像拼接。 采用SURF算法对图像进行检测，其主要是用Hessian矩阵对图像进行检测，对图像的特征提取之后找到图像的特征点。之后采用最近临快速匹配（NN）、随机抽样一致性（RANSAC）算法和最小二乘法参数优化（LM）对特征点进行提纯匹配。最后在两幅图像中进行坐标变换，达到统一坐标系和图像拼接的效果。 (SURF（Speeded Up Robust Features） as a method of feature extraction which newly appeared is over or nearly previous method on duplication, uniqueness, and robustness and have a clear advantage on computational efficiency. This code uses the SURF and coordinate transformation algorithm to detect image and image matching. This code uses the SURF algorithm of image detection, the main is to use the Hessian matrix of image for testing, to find the image after image feature extraction of feature points. After we used Nearest Neighbor (NN), Random Sample Consensus (RANSAC) algorithm and least square parameter optimization for purification of matching feature points. Coordinate transformation in the last two images, to coordinate system to achieve the same image stitching. )

基于最新一篇关于圆环阵超指向性论文做出的仿真，已经有了论文的介绍，程序中仅作关于二维波束形成的简单仿真演示。(Make simulation based on the latest article on the ring array of ultra-directional papers, has been the introduction of the paper, the program only for simple two-dimensional beam simulation demo.)