The invention relates to a device (10) for visualizing a 3D object, an X-ray imaging system (1) for visualizing a 3D object, a method for visualizing a 3D object, and a computer program element for controlling such device (10) and a computer readable medium having stored such computer program element. The device (10) for visualizing a 3D object comprises a processing unit (11). The processing unit (11) is configured to provide an image in a 2D projection plane (23). The processing unit (11) is configured to project an initial 3D object (22) from an initial plane (27) with an inverse projection transformation in the 2D projection plane (23) of the image to achieve an inverse 2D object (24). The inverse projection transformation is a projection transformation, wherein a vanishing point is at the other side of the 2D projection plane (23) than the initial object. The processing unit (11) is configured to point-mirror the inverse 2D object (24) to achieve a mirrored non-inverse 2D object (25). The processing unit (11) is configured to project the mirrored non-inverse 2D object (25) back to the initial plane (27) to provide a corrected 3D object (26). The processing unit (11) is configured to project the corrected 3D object (26) again to the 2D projection plane (23) of the image to provide a final 3D object (28) appearing to be non- inversely projected.Linvention concerne un dispositif (10) de visualisation dun objet 3D, un système dimagerie à rayons X (1) permettant de visualiser un objet 3D, un procédé permettant de visualiser un objet 3D, un élément de programme informatique servant à commander ledit dispositif (10) et un support lisible par ordinateur sur lequel ledit élément de programme informatique est stocké. Le dispositif (10) de visualisation dun objet 3D comprend une unité de traitement (11). Lunité de traitement (11) est configurée pour produire une image dans un plan de projection 2D (23). Lunité de traitement (11) est configurée pour projeter un objet 3D in
