Fig. 1. Imaging system of pulse image sensor

Fig. 2. Pixel model of pulse image sensor

Fig. 3. Working principle of pulse image sensor pixel

Fig. 4. Output data type of pulse image sensor

Fig. 5. Conversion from pulse data to pulse interval

Fig. 6. Pulse signal distribution of turntable in fixed time

Fig. 7. Motion detection of high-speed turntable at a rotation speed of 500 r/min. (a) High-speed turntable shooting scene; (b) Vibe detection algorithm before improvement; (c) Vibe detection algorithm after improvement

Fig. 8. Motion detection of high-speed table tennis. (a) High-speed table tennis shooting scene; (b) Vibe detection algorithm before improvement; (c) Vibe detection algorithm after improvement

Fig. 9. Selection of tracking target

Fig. 10. Selection of candidate targets

Fig. 11. Reconstruction and tracking of high-speed turntable patterns

Fig. 12. Overall flow of target tracking method

Fig. 13. Scene 1: reconstruction and tracking of high-speed ball. (a) High-speed ball shooting scene; (b) 280th frame; (c) 550th frame; (d) 660th frame; (e) 900th frame

Fig. 14. Comparison of tracking stability of three algorithms on high-speed ball

Fig. 15. Scene 2: reconstruction and tracking of ejected ball at a speed of 40 m/s. (a) Ejected ball shooting scene; (b) 221st frame; (c) 397th frame; (d) 533rd frame; (e) 756th frame

Fig. 16. Comparison of tracking stability of three algorithms on ejected ball

Fig. 17. Scene 3: reconstruction and tracking of pattern on high-speed turntable at a rotation speed of 2000 r/min. (a) High-speed turntable shooting scene; (b) 70th frame; (c) 145th frame; (d) 217th frame; (e) 340th frame

Fig. 18. Comparison of tracking stability of three algorithms on pattern of high-speed turntable