1 results about "Aircraft Accident" patented technology

This invention discloses a method for inverting aircraft flight data accident investigations based on video image data. The method includes: S1, selecting two consecutive video images P1 and P2 from the video stream data, obtaining the measured latitude, longitude, elevation, and distance from the camera position to reference objects A and B, and obtaining the conversion coefficient between the pixel distance in the video image and the measured distance; S2, constructing a geographic coordinate system with the camera position as the origin and the ground as the coordinate plane, converting and processing the data using the conversion coefficient, and uniformly expressing it on the geographic coordinate system, calculating the geographic coordinate information of aircraft position C and aircraft position C1 respectively, fitting a line to form the inferred trajectory, constructing a flight dataset, storing the inferred trajectory containing geographic coordinate information in the flight dataset, and outputting it. This invention can invert and obtain important flight data such as the trajectory, speed, and altitude of the aircraft involved in the accident based on video stream data, providing accurate and reliable flight data support for aircraft accident investigations.