Applicability Analysis of High-Speed Camera Calibration Methods in Different Test Scenarios

In response to the fact that the convenience and measurement accuracy of high-speed camera calibration are generally negatively correlated in practical applications, starting from the three calibration methods of high-speed camera mainly used in the optical testing major of Aviation Life-support Test Site of China, namely the spatial resection method, two-point focusing method, and checkerboard method, and combined with the basic calibration theory, test scenario application, control field layout conditions, and measurement accuracy, the applicability of the three calibration methods is systematically analyzed. The imaging mathematical model of high-speed camera is deduced, the basic principles of three calibration methods of high-speed camera are summarized, the specific solutions of three calibration methods are calculated and the relevant programs are written. The comparative verification test of calibration methods for high-speed camera is carried out, the test scheme is designed and the control field is built. The same theoretical values and the measured values calculated by the calibration parameters of the three methods are compared and analyzed respectively. This research comprehensively summarizes the mainstream calibration methods for high-speed cameras, demonstrates the impact of calibration results on measurement accuracy, clarifies the application scope of three calibration methods, and provides technical basis for the selection of appropriate calibration methods in subsequent tests.