中文说明：基于傅里叶频谱特征的粒子滤波跟踪程序，修复了因粒子超过窗口范围出现ERROR的BUG，将传统颜色特征改为傅里叶频谱特征，特别有利于实现与背景颜色相似但纹理特征有别于背景的运动目标，而且傅里叶频谱的特征提取速度很快，能满足实时跟踪的要求-fourier spectrum-based particle filter tracking, some bugs have been fixed
English Description：
Particle filter tracking program based on Fourier spectrum features, fixed the bug of error caused by particles exceeding the window range, changed the traditional color feature to Fourier spectrum feature, which is especially conducive to the realization of moving targets with similar background color but different texture features from the background, and the feature extraction speed of Fourier spectrum is very fast, which can meet the requirements of real-time tracking Fourier spectrum feature spectrum-based particle filter tracking, some bugs have been fixed