飞行试验复杂背景下的图像跟踪技术

针对光电经纬仪在飞机起飞着陆段跟踪角速度大、背景复杂的情况,根据小波多分辨率技术,提出利用小波分层组成低频图像金字塔,利用光流技术进行匹配解算,实现由粗到精的特征点匹配跟踪。通过对飞行试验视频图像进行事后自动跟踪试验,结果表明,该算法能够稳定可靠跟踪多特征点目标,具有鲁棒性。

Video Tracking Technology for the Flight Test under Complex Background

In this paper, because of the big tracking-angle-speed of the electrooptical theodolite through aircraft takeoff and landing, and the complex background, according to the wavelet-based multi-resolution, a method was put forward to compose low frequency image pyramid using Wavelet hierarchical theory and to do the matching calculation using the technology of Optical-Flow, and then the matching tracking of feature point was realized through coarse-to-fine. Through the automatic tracking trial against the image of the flight video, then it was founded that it could track multiple targets for the method with stability, reliability and robustness.