Method for assisting with landing an aircraft and system configured to execute the method

A method for assisting with landing an aircraft on a runway of a destination airport facility, comprising:

• detecting a plurality of runways in an image (F) representative of a shot taken from the aircraft,
• selecting a detected runway among said plurality of runways detected in said image (F), and determining characteristic points (a, b, c, d) of that runway in said image (F),
• determining as many theoretical positions (POS1, POS2, POS3) of the aircraft as there are runways in said destination airport facility using the characteristic points (a, b, c, d) of the selected runway in said image (F), a “PnP” algorithm for determining a position of the aircraft with respect to said runway on the basis of the shot (F), and the coordinates of said characteristic points (A, B, C, D) of each of the runways in a geodetic database (RWYDB), then, for each of the determined theoretical positions (POS1, POS2, POS3) of the aircraft:
• reprojecting each of said runways into said image (F) using said theoretical position (POS1, POS2, POS3), said coordinates of said geodetic database (RWYDB) and said “PnP” algorithm for determining a position of the aircraft with respect to said runway on the basis of the shot,
• establishing and storing a consistency score (SC) rating the consistency between said characteristic points of said runways detected in said image (F) and said characteristic points of said runways reprojected into said image (F), then
• delivering information (POSA) representative of an estimated position of the airplane on the basis of the stored consistency scores.