Fig. 1. Flow chart of internal calibration method of linear array CCD using nonparametric model

Fig. 2. Nonparametric model of two-dimensional imaging of linear array CCD camera

Fig. 3. Camera imaging model considering edge distortion of linear array CCD camera

Fig. 4. Mapping relationship of equidistant points on parallel lines

Fig. 5. Mapping relationship of points on line parallel to optical axis

Fig. 6. Distortion calibration

Fig. 7. Schematic of experimental setup for nonparametric calibration of linear array CCD camera

Fig. 8. Spectrum of receiving signal of linear array CCD camera

Fig. 9. Distortion calculated from data of calibration points at X=10 mm

Fig. 10. Reprojection error without distortion calibration

Fig. 11. Reprojection error of internal calibration method using nonparametric model

Fig. 12. Reprojection error using distortionparametric model