LinearEquation

SIFT代码，包括detector & descriptor.Matlab版本，内有详细的说明文档。值得一看(SIFT code, including detector )

Calculation of diffraction efficiency of rectangular phase grating (comparison scalar theory and scalar theory with shadow effect)

Les principaux ports PC.rar

Photonic crystals are attractive optical materials for controlling and manipulating the flow of light. One dimensional photonic crystals are already in widespread use in the form of thin-film optics with applications ranging from low and high reflection coatings on lenses and mirrors to colour changing paints and inks. Higher dimensional photonic crystals are of great interest for both fundamental and applied research, and the two dimensional ones are beginning to find commercial applications. The first commercial products involving two-dimensionally periodic photonic crystals are already available in the form of photonic-crystal fibers, which use a microscale structure to confine light with radically different characteristics compared to conventional optical fiber for applications in nonlinear devices and guiding exotic wavelengths. The three-dimensional counterparts are still far from commercialization but may offer additional features such as optical nonlinearity require

该程序采用harris角点检测，使用ncc进行初匹配，双向重复搜索后得到特征匹配点。(The program uses harris corner detection, using ncc conducted early match, after a two-way repeated search feature to get the matching point.)

dtw的matlab程序的实现，已经编译通过的。(dtw the realization of Matlab procedures already adopted by the compiler.)

说明：  描绘一种绘制图形的方法，在该程序中使用的是极坐标绘图。会出的图形是花瓣形状。(Describe a method of drawing graphics in the program using polar mapping. Will the graphics is petal shape.)

This is a useful code for mutipaths signal

Application demo for MPU6050

说明：  轴承滚动体故障诊断代码，内含频率计算，大家一起学习(Rolling Element Bearing Fault Diagnosis code, containing the frequency calculation, everyone learning together)