Abstract: The present invention relates to object visualization. In order to provide a facilitated visualization of a subject's interior structure, an object visualization device (10) is provided comprising an image supply (12), a data processor (14) and an output (16). The image supply provides a 2D X-ray image of the object and also 3D image data of the object. The data processor registers the 3D image data to the 2D X-ray image and detects a viewing direction used for generating the 2D X-ray image. The data processor also determines a viewing direction for projecting the 3D image data to generate a matching view of the 3D image data based on the viewing direction used for generating the 2D X-ray image.