myenviread

经典的ukf跟踪框架与源码，有详细的注释以及说明，适合初学者。(Classic ukf tracking framework and source code, detailed notes and instructions for beginners.)

说明：  同态滤波利用去除乘性噪声(multiplicative noise)，可以同时增加对比度以及标准化亮度，借此达到图像增强的目的。(Homomorphic filtering can increase contrast and standardize brightness simultaneously by removing multiplicative noise, so as to achieve the purpose of image enhancement.)

SURF算法较SIFT算法速度快，SURF算法源代码。(SURF code)

视频插帧中的双向运动估计算法，注释很详细。利用双向运动估计，计算内插帧运动矢量场(Bidirectional motion estimation, is used to calculate interpolation motion vector field)

大气校正软件MODTRAN4.3.1，MODTRAN里提供了6种差异显著且有代表性的大气模型，这些模型的温度、水汽、臭氧廓线都有明显差异。近北极冬季模型（Sub-Arctic Winter）具有最低陆表温度，中纬度冬季模型（Mid-Latitude Winter）次之；热带模型（Tropical）和中纬度夏季模型（Mid-Latitude Summer）具有最高的陆表温度。对流层顶，热带模型的温度反而是最低的，而近北极夏季模型（Sub-Arctic Summer）具有最高的温度。在这6种模型中，除陆表外的第二温度峰值高度出现在海拔50km左右，这里近北极夏季模型具有最高温度，中纬度夏季模型与之近乎相等，在这个海拔上近北极冬季模型的温度是最低的。1976美国标准模型（1976U.S. Standard）在这一系列模型中提供了一个近乎与中位数值的选择。(Atmosphere Correction Software Modtran 4.3.1, it provides six distinct and representative atmospheric models with distinct differences in temperature, water vapor, and ozone profiles.)

实现北斗时（北斗周计数，周内秒）到UTC的转换(transfer BDT to UTC)

轻量级的MTCNN实现，无需caffe和tensorflow基本库支持，内部实现卷积运算，速度比普通mtcnn要快一倍。

利用Matlab编写的基于hough变换的椭圆检测程序，已经运行过的，附图(Written in Matlab, hough transform based ellipse detection procedure has been run off, with photos)

说明：  小波分析增强滤波。小波变换的原理类似傅里叶变换，只是把三角函数基换成了小波基。与傅里叶变换不同，小波变换有两个变量：scale和translation。scale控制小波函数的收缩，其导数即为频率，translation控制小标函数的平移，平移量对应时间。通过信号的伸缩平移，可以得到某种重合情况，这样积分也会得到一个极大值，不同的是，得到频率成分的同时，还可以知道该频率的时间位置。(Wavelet analysis enhances filtering.The wavelet transform works like the Fourier transform, except that the trigonometric basis is replaced by a wavelet basis. Unlike the Fourier transform, the wavelet transform has two variables: scale and Translation. Scale controls the contraction of the wavelet function, its derivative is frequency, translation controls the translation of the small scale function, and the translation corresponds to the time. By stretching and shifting the signal, you can get some kind of coincidence, so that the integral will also get a maximum, but the difference is that when you get the frequency component, you can also know the time position of that frequency.)

等效视数表示遥感图像滤波后的滤波效果，这个程序可以计算等效视数。(Equivalent number of said filtering effect, this program can calculate the equivalent number of remote sensing images filtered.)