Infrared weak and small target adaptive tracking algorithm switching method and system under sea-air background

The invention discloses an infrared weak and small target adaptive tracking algorithm switching method under a sea-air background. The method comprises the following steps of S1, extracting a sea-skyline from an original image; s2, judging whether the target position is above a sea-sky line or not; s3, if the target position is above the sea-sky line, extracting an aerial target; and S4, if the target position is below the sea-sky-line, carrying out sea surface target extraction According to the method and system, automatic switching of the tracking algorithm is carried out by judging whetherthe target is in the air or on the sea surface, and automatic tracking of the infrared weak target under the sea-air background is achieved. 本发明公开了一种海空背景下红外弱小目标自适应跟踪算法切换方法，包括以下步骤：S1、从原始图像中提取海天线；S2、判断目标位置是否在海天线以上；S3、若目标位置在海天线以上，则进行空中目标提取；S4、若目标位置在海天线以下，则进行海面目标提取。本发明通过判断目标在空中还是海面进行跟踪算法的自动切换，实现海空背景下的红外弱目标的自动跟踪。