That subtracts nothing from his merit.

那没有减损他功绩。

In order to detect and track dim-point targets under the complex background of sky, a high speed method is put, which uses multiwindow, little yardstick, repetitious subtracting and fusing images.

针对复杂天空背景下弱点目标检与跟踪,提出了一种利用多窗口、尺度、次差影融合点目标快速检与跟踪方法。