1. A method for determining the morphology of the occupant of an automotive car, characterized in that it comprises the steps of: collecting ( 200 ) the outputs of a plurality of capacitive sensors ( 100 ) provided on a seat, determining, for each capacitive sensor ( 100 ): a first value representative of the distance (di) separating a target ( 10 ) from said sensor ( 100 ), a second value (Sdi) representative of the surface of said sensor ( 100 ) covered by the target ( 10 ), and a weighting coefficient based on the first value representative of the distance separating the target from the corresponding sensor; correcting ( 210 ) each second value (Sdi) representative of the surface of the corresponding sensor ( 100 ) covered by the target ( 10 ) by applying to said second values the respective weighting coefficient (Wi), and determining ( 240 ) the morphology of the target ( 10 ) on the basis of the plurality of corrected second values (SdixWi).