After the original image is performed for two times, all kinds of noise and aberrance affect to the target area of image eliminate furthest.The efficiency and veracity to the targets is improved.

• 经过背景抑制和边缘检测后的原始图像,最大限度地消除各种噪声和畸变对图像中目标区域的影响,提高了对目标定位和跟踪的效率和准确性。