动摄像机和动目标跟踪模式下的目标检测新方法

New method of target detection in the moving camera and moving target mode

动摄像机和动目标跟踪是图像分析中的一个难点。根据应用光学知识和坐标变换理论,提出了映射变换差分方法(mappingtransformationdifferentialmethod,MTDM)。该方法首先利用映射变换将动摄像机和动目标模式下的目标检测问题转化为技术比较成熟的静摄像机和动目标模式下的目标检测,然后利用图像差分方法检测出被跟踪目标。实验结果表明:MTDM方法在复杂天空背景下能有效地抑制背景噪声,能准确地检测出被跟踪目标。

Target tracking in the moving camera-moving target (MC-MT) is a difficulty for image analysis. According to the theory of applied optics and coordinate transformation, the mapping transformation differential method (MTDM) is developed. With the mapping transformation, the method converts the difficult target detection in MC-MT into the detection in the static camera-moving targets (SC-MT), which is researched more completely. The tracked targets can be detected with differential method. The experiment result shows that the MTDM can reduce the background noise effectively and detect the targets accurately.