Fig. 1. Block diagram of system

Fig. 2. Flow chart of DW method

Fig. 3. Schematic diagram of the experiment

Fig. 4. Detection imaging results of water droplets. (a) Full field of view imaging; (b) High frame rate imaging with window openning

Fig. 5. Histogram of inter-frame distance versus bandwidth for water droplets imaging

Fig. 6. Detection imaging results of electric soldering iron. (a) Full field of view imaging; (b) DW method imaging

Fig. 7. Target centroid coordinates and predicted trajectory error. (a) Target centroid coordinates acquired by the full field of view method; (b) Target centroid coordinates acquired by the DW method; (c) Error of trajectory prediction of the full field of view method; (d) Error of trajectory prediction of the DW method

Fig. 8. Motion trajectory fitting. (a) Fitting results of data acquired by full field of view method; (b) Fitting results of data acquired by DW method

Fig. 9. Comparative histogram of the error in motion trajectory prediction

Table 1. Parameters of detector and optical system & parameters of experimental setup