Fig. 1. Schematic diagram of vehicle sun tracker

Fig. 2. Radial distortion

Fig. 3. Calibration experiment and visualization of external parameters

Fig. 4. Comparison of image before and after correction

Fig. 5. Image processing

Fig. 6. Pixel position vs. corresponding physical angle

Fig. 7. Indoor simulation sun tracker vehicle environment test devices

Fig. 8. X-axis centroid pixel deviation at different speeds

Fig. 9. Response time of sun tracker

Fig. 10. Stationary platform centroid pixel deviation

Fig. 11. Light intensity amplitude of stationary platform

Fig. 12. Vehicle platform centroid pixel deviation

Fig. 13. Light intensity amplitude at speed of 15 km/h