A Two-Phase Video Image Key Frame Extraction Method
According to the actual need for panorama joint of aerial video in real time,puts forward a two-phase of the key frame extraction method.In the first stage,the candidate key frames are extracted in high overlap ratio by using the linear relation between flight time and overlap rate.Then the second stage,final key frames are determined through checking the frame-to-frame overlap ratio to reduce redundancy,which prepared for panorama joint.After the experiment examination,this method which can extract key frames,is practical.