Considering fast detection of spatial trajectory of badminton

effect of some common detection algorithms like background difference

frame difference and three-frame difference are compared. Three-frame difference method is used to detect trajectory of moving object. Based on circumscribed rectangular area of detect contours

screening is carried out. Based on interval of detecting frame and motion characteristic analysis

and reject short track

every track of badminton is detected finally. By using Basler industrial cameras

movement of badminton is detect both in left camera and right one. Based on result of binocular calibration

spatial trajectory of badminton is obtamed. It shows that detect effect of tracks are good and it can meet vision measurement requirement of spatial trajectory of moving object.