说明：  东华大学机器学习核密度估计大作业 第一部分是一个三维的彩色KDE估计图（最好用MATLAB画）；第二部分是测试图片的运动目标二值图像检测结果（运动员用白色像素，背景用黑色）
(Big assignment of kernel density estimation for machine learning in Donghua University The first part is a three-dimensional color KDE estimation map (preferably drawn with Matlab); the second part is the detection result of the moving target binary image of the test image (athletes use white pixels, background use black))