Patent ID: 8272752

Claim:
Method of projection implemented by a projection device according comprising i) a projector ( 2 ) arranged in order to project a mother image ( 23 ) along an axis of projection ( 11 ), and ii) a convex mirror ( 3 ) arranged in order to reflect the mother image at least in part and to project it onto a three-dimensional environment ( 7 , 8 a , 8 b ), comprising: a projection of the mother image ( 23 ) along an axis of projection ( 11 ), and a reflection of at least one part of the mother image by the convex mirror ( 3 ), a projection onto the three-dimensional environment ( 7 , 8 a , 8 b ) of the mother image reflected by the convex mirror, acquiring at least one image of the three-dimensional environment, modelling of the three-dimensional environment, the mother image comprising at least one modelling point, the image acquisition comprising acquiring at least one image of the environment acquired for the modelling, the modelling comprising for each modelling point and for each image of the environment acquired for the modelling: calculating the path of a light ray ( 15 ) originating from the modelling point, reflected by the mirror, and projected onto a first point of the environment, calculating the path of a light ray ( 20 ) originating from the first point of the environment ( 34 ) and imaged by a point of the image of the environment acquired for the modelling, and calculating an intersection of the path of the light ray ( 15 ) originating from the modelling point and the path of the light ray ( 20 ) originating from the first point of the environment ( 34 ).