中文说明：本代码先用背景减除法及颜色检测法提取出视频中的火焰，然后运用harris角点法提取角点，并且在疑似火焰上标出角点，结合周长，面积等形状特征，计算出圆形度等量，进一步确定是否是火焰。该方法能排除外界干扰，准确提取出火焰。其中角点法的程序效率较高，可移植性好。
English Description：
This code by using background subtraction and flame color detection method to extract the video, and then using the Harris corner points extraction of corner and suspected out of a corner point of the flame, combination of perimeter and area features, calculate circularity, isometric, further to determine whether the flame. This method can eliminate outside interference, to extract their fire. Which corner point method is more efficient, portable, good.